U.S. patent application number 15/140255 was filed with the patent office on 2017-11-02 for satellite microphone assembly.
The applicant listed for this patent is Cisco Technology, Inc.. Invention is credited to Matthew Cho, Nicholas Kawamoto, Ian M. Snyder.
Application Number | 20170317655 15/140255 |
Document ID | / |
Family ID | 58671924 |
Filed Date | 2017-11-02 |
United States Patent
Application |
20170317655 |
Kind Code |
A1 |
Snyder; Ian M. ; et
al. |
November 2, 2017 |
SATELLITE MICROPHONE ASSEMBLY
Abstract
In one embodiment, a satellite microphone assembly for use in
teleconferencing or other audio based communications comprises a
base housing a microphone and volume control electronics. The base
is enclosed by a cylinder, rotatable about the base and having a
top surface configured to be an actuatable button to toggle a
mute/unmute status of the microphone. The cylinder has a sidewall
configured to be engaged by a user such that the user can rotate
the cylinder. An optical sensor is supported by the base, and is
configured to detect a rotation of the cylinder and to output
information about a direction and a degree of rotation of the
cylinder to the volume control electronics, causing a rotation of
the cylinder to affect the volume level of a speaker.
Inventors: |
Snyder; Ian M.; (San
Francisco, CA) ; Cho; Matthew; (San Francisco,
CA) ; Kawamoto; Nicholas; (San Francisco,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Cisco Technology, Inc. |
San Jose |
CA |
US |
|
|
Family ID: |
58671924 |
Appl. No.: |
15/140255 |
Filed: |
April 27, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04M 1/6033 20130101;
H04M 1/02 20130101; H04M 2250/62 20130101; H04R 1/08 20130101; H04R
2430/01 20130101; H03G 3/04 20130101; G06F 3/0346 20130101; H04R
29/004 20130101; G01D 5/3473 20130101; H04R 1/04 20130101; H04M
1/03 20130101; H04R 2420/07 20130101; H04M 3/56 20130101 |
International
Class: |
H03G 3/04 20060101
H03G003/04; H04R 1/04 20060101 H04R001/04; H04R 29/00 20060101
H04R029/00; G01D 5/347 20060101 G01D005/347; H04R 1/08 20060101
H04R001/08; G06F 3/0346 20130101 G06F003/0346 |
Claims
1. A satellite microphone assembly comprising: a base housing a
microphone and a volume control electronics; a cylinder enclosing
the base, and rotatable about the base, the cylinder having a top
surface configured to be a control to toggle mute/unmute of the
microphone of the satellite microphone assembly, and the cylinder
having a sidewall configured to be engaged by a user so that a user
can rotate the cylinder; and an optical sensor supported by the
base, the optical sensor configured to detect a rotation of the
cylinder and to output information about a direction and a degree
of rotation of the cylinder to the volume control electronics, and
cause a rotation of the cylinder to affect a volume of a speaker
communicatively coupled to the satellite microphone assembly.
2. The satellite microphone assembly of claim 1 comprising:
mechanical detents, the mechanical detents arranged to interface
with the cylinder, thereby, a tactile feedback is produced when the
cylinder is rotated.
3. The satellite microphone assembly of claim 1 comprising: a
haptic actuator, the haptic actuator receiving output of the
optical sensor, and configured to output vibrations tuned to
produce a tactile feedback when the cylinder is rotated.
4. The satellite microphone assembly of claim 1, wherein the top
surface of the cylinder is touch sensitive, and a received touch
activates an the actuatable button to toggle mute/unmute of the
microphone.
5. The satellite microphone assembly of claim 1, wherein the top
surface of the cylinder is a physical button assembly that when
depressed activates the control to toggle mute/unmute of the
microphone.
6. The satellite microphone assembly of claim 1, comprising: an
accelerometer supported by the base and configured to provide an
output to the volume control electronics.
7. The satellite microphone assembly of claim 6, wherein, the
accelerometer is configured to detect a resting state of the
satellite microphone assembly, and to enable the volume control
electronics.
8. The satellite microphone assembly of claim 6, wherein, the
accelerometer is configured to detect a movement state of the
satellite microphone assembly, and to disable the volume control
electronics.
9. A satellite microphone comprising: a base supporting microphone
electronics; a rotatable member attached to the base, and rotatable
about the base; a rotation detection member attached to the base
and configured to detect a degree of rotation of the rotatable
member and receive a user input to affect the volume of a speaker
of a speaker phone separate from the satellite microphone; and a
mute actuator configured to receive a user input to mute/unmute
microphone electronics, wherein the mute actuator has a surface
area equal to the surface area of the rotatable member.
10. The satellite microphone of claim 9 comprising: mechanical
members arranged to interface with the rotatable member to produce
a tactile feedback when the rotatable member is rotated.
11. The satellite microphone of claim 9 comprising: a haptic
actuator, the haptic actuator receiving output of the rotation
detection member, and configured to output vibrations tuned to
produce a tactile feedback when the rotatable member is
rotated.
12. The satellite microphone of claim 9, wherein the mute actuator
is touch sensitive to receive a user input to mute/unmute
microphone electronics.
13. The satellite microphone of claim 9, wherein the mute actuator
is a physical button assembly to receive a user input to
mute/unmute microphone electronics.
14. The satellite microphone of claim 9, comprising: an
accelerometer supported by the base and configured to provide an
output to the microphone electronics.
15. The satellite microphone of claim 14, wherein, the
accelerometer is configured to detect a resting state of the
satellite microphone, and to enable the microphone electronics.
16. The satellite microphone of claim 14, wherein, the
accelerometer is configured to detect a movement state of the
satellite microphone, and to disable the microphone
electronics.
17. The satellite microphone assembly of claim 1, wherein the
control to toggle mute/unmute of the microphone and having a
surface area equal to the surface area of the top surface is an
actuatable button.
Description
TECHNICAL FIELD
[0001] The present invention relates to conference equipment, and
more specifically to a satellite microphone for a speakerphone.
BACKGROUND
[0002] Wired satellite microphones are commonly used in
teleconferencing hardware, such as speakerphones and conference
room audio equipment, and are connected to a base station of the
speakerphone or multiplexer/controller of conference room audio
equipment. Whereas microphones provided in the base station of the
teleconferencing hardware may be remote from some participants in a
call, wired satellite microphones improve the voice quality of a
call by placing the microphone closer to a user, thereby yielding a
better signal to noise ratio.
[0003] Wired satellite microphones might provide a mute function
via a discrete button on the surface of the wired satellite
microphone, which allows a participant to turn off his or her
microphone at will (or even all of the microphones connected to the
teleconferencing hardware), and remove his or her audio stream from
the call. However, the mute button is often small or hard to
locate, particularly for a user unfamiliar with a given wired
satellite microphone. Furthermore, while wired satellite
microphones may offer a mute function, they do not offer any
physical way to control the volume level of a speaker(s).
BRIEF DESCRIPTION OF THE DRAWINGS
[0004] FIG. 1A illustrates an exterior view of an example
embodiment of a satellite microphone assembly.
[0005] FIG. 1B illustrates an exterior view of an example
embodiment of a satellite microphone assembly.
[0006] FIG. 1C illustrates an exploded view of an example
embodiment of a satellite microphone assembly.
[0007] FIG. 2A illustrates a cross-section view of an example
embodiment for a mechanism to capture a received user touch or user
press for toggling a mute/unmute state of a microphone.
[0008] FIG. 2B illustrates a cross-section view of an example
embodiment for a mechanism to capture a received user touch or user
press for toggling a mute/unmute state of a microphone.
[0009] FIG. 2C illustrates a cross-section view of an example
embodiment for a mechanism to capture a received user touch or user
press for toggling a mute/unmute state of a microphone.
[0010] FIG. 3 shows a schematic illustration of an example
satellite microphone assembly with an optical encoder.
[0011] FIG. 4 illustrates a cross-section view of an example
embodiment of a satellite microphone assembly using a detent
mechanism.
[0012] FIG. 5A illustrates an exterior view of an example
embodiment of a satellite microphone assembly using electronic,
touch-sensitive means to receive input.
[0013] FIG. 5B illustrates an exploded view of an example
embodiment of a satellite microphone assembly using electronic,
touch-sensitive means to receive input.
[0014] FIG. 6 shows a schematic illustration of an example
satellite microphone assembly using electronic, touch-sensitive
means to receive input.
[0015] FIG. 7 illustrates a block diagram of an example satellite
microphone assembly and the connections between its constituent
components.
[0016] FIG. 8 illustrates a system bus computing system
architecture for use in the various embodiments described
herein.
DESCRIPTION OF EXAMPLE EMBODIMENTS
Overview
[0017] In one embodiment, a satellite microphone assembly for use
in teleconferencing or other audio based communications comprises a
base housing a microphone and volume control electronics, and may
be connected to a base station of the speakerphone or
multiplexer/controller of conference room audio equipment. The base
is enclosed by a cylinder, which is rotatable about the base, the
cylinder further having a top surface configured to be an
actuatable button to toggle a mute/unmute status of the microphone.
The cylinder has a sidewall configured to be engaged by a user such
that the user can rotate the cylinder about the base. An optical
sensor is supported by the base, and can be configured to detect a
rotation of the cylinder and to output information about a
direction and a degree of rotation of the cylinder to the volume
control electronics, causing a rotation of the cylinder to affect
the volume level of a speaker.
Example Embodiments
[0018] The present invention is described with reference to the
attached figures, wherein like reference numerals are used
throughout the figures to designate similar or equivalent elements.
The figures are not drawn to scale and they are provided merely to
illustrate the instant invention. Several aspects of the invention
are described below with reference to example applications for
illustration. It should be understood that numerous specific
details, relationships, and methods are set forth to provide a full
understanding of the invention. One having ordinary skill in the
relevant art, however, will readily recognize that the invention
can be practiced without one or more of the specific details or
with other methods. In other instances, well-known structures or
operations are not shown in detail to avoid obscuring the
invention. The present invention is not limited by the illustrated
ordering of acts or events, as some acts may occur in different
orders and/or concurrently with other acts or events. Furthermore,
not all illustrated acts or events are required to implement a
methodology in accordance with the present invention.
[0019] FIG. 1A illustrates an exterior view of an example
embodiment of a satellite microphone assembly 100 for use in
teleconferencing or other audio communication systems. One or more
satellite microphone assemblies may be communicatively linked to a
base station (not pictured) via a connecting cable 150, which
supplies electrical power and transmits data between the base
station and satellite microphone assembly 100. In some embodiments,
a wireless connection may be used for the transmission of data
between the base station and satellite microphone assembly 100.
[0020] FIG. 1B illustrates an exterior view of another example
embodiment of a satellite microphone assembly 100b for use in
teleconferencing or other audio communication systems.
[0021] FIG. 1C illustrates an exploded view of the satellite
microphone assembly 100, with internal components depicted in a
simplified manner at an exaggerated scale for purposes of
explanation, and it is further understood that the internal
components of satellite microphone assembly 100b can be
substantially the same as those pictured.
[0022] In FIG. 1A, a cylindrical top portion 106, comprising a top
surface 101 and a top sidewall 102, encloses a base portion 104 and
is continuously rotatable about base portion 104 in both the
clockwise and counter-clockwise directions. Cylindrical top portion
106 is of a greater diameter than base portion 104, such that the
top portion may rotate freely. Rotation of the cylindrical top
portion about the base portion is configured to adjust the volume
of a speaker, which is typically contained in the base station. For
example, rotation of cylindrical top portion 106 in a clockwise
direction may cause the volume of the speaker to be increased,
while rotation of cylindrical top portion 106 in a
counter-clockwise direction may cause the volume of the speaker to
be decreased. A volume indicator 140 is further provided in order
to indicate the current or user-selected volume level of the
speaker, and in some embodiments, may be provided as one or more
LEDs or other lighting elements.
[0023] In some embodiments, as seen in FIG. 1B, both top surface
101 and base portion 104 may remain stationary, while top sidewall
102 is continuously rotatable about top surface 101 and base
portion 104, in both the clockwise and counter-clockwise
directions. As described previously, rotation of top sidewall 102
is configured to adjust the volume of a speaker, with clockwise and
counter-clockwise rotations corresponding to different adjustments
in volume level. Base portion 104 may be configured to have a
smaller diameter than at least top sidewall 102, such that top
sidewall 102 is free to rotate relative to base portion 104.
[0024] In some embodiments, the rotation of top sidewall 102 is
detected by an optical sensor 120, which outputs information about
the direction and degree of rotation to a volume control
electronics 110. Optical sensor 120 can be mounted on a support
layer 105 such that it can be elevated above the height of a base
sidewall 103. This configuration provides a line of sight between
optical sensor 120 and the interior surface of top sidewall 102,
thereby allowing optical sensor 120 to detect rotation. Persons of
ordinary skill in the art would appreciate that support layer 105
is not a necessary component of satellite microphone assembly 100,
and various means may be used to ensure that optical sensor 120 has
a direct line of sight to the interior surface of top sidewall 102.
In some embodiments, the rotation of top sidewall may be detected
mechanically, through the use of devices such as potentiometers or
other control knobs, as would be appreciated by persons of ordinary
skill in the art.
[0025] Upon receipt of the information about the direction and
degree of rotation, volume control electronics 110 causes the
volume of the speaker to be correspondingly adjusted, causes volume
indicator 140 to update to indicate a new selected volume level of
the speaker, and in some embodiments, controls a haptic actuator
116 that is configured to output vibrations tuned to produce a
tactile feedback as top sidewall 102 is rotated. In various
embodiments, mechanical devices such as detents can be used to
produce tactical feedback as top sidewall 102 is rotated. This
tactile feedback is provided to provide real-time confirmation of
the volume adjustments. In some embodiments, haptic actuator 116
rotates an off-center weight 117 in order to produce vibrations,
although persons of ordinary skill in the art would appreciate that
various types of haptic actuators may be used in order to produce
the tactile feedback. The vibrations may be tuned to reflect
discrete steps of volume adjustment, e.g. if there are 10 discrete
steps of volume adjustment then haptic actuator 116 can output
vibrations every successive instance that top sidewall 102 is
rotated by 36 degrees. Alternatively, the vibrations may be tuned
to reflect continuous volume adjustment. In some embodiments,
vibration strength is a function of the current volume level.
[0026] Top surface 101 can be an actuatable button to toggle a
mute/unmute function of a microphone 112, whereby a received user
touch or user press of top surface 101 engages the actuatable
button function. A mute indicator 130 indicates the mute/unmute
status of the microphone and can be provided as an LCD display, or
LED lighting element, for example. In some embodiments, the
entirety of top surface 101 can be configured to receive a user
touch or press. In further embodiments, only an actuatable button
portion 108 of top surface 101 may be configured to receive a user
touch or press, with actuatable button portion 108 having some
surface area that is lesser than or equal to the surface area of
top surface 101.
[0027] An accelerometer 114 outputs acceleration data to volume
control electronics 110, thereby detecting either a resting state
or a movement state of satellite microphone assembly 100. While
illustrated as a constituent component of the volume control
electronics in FIG. 1A, persons of ordinary skill in the art would
appreciate that accelerometer 114 may be located anywhere within
the satellite microphone assembly 100 so long as it is
communicatively linked to the volume control electronics 110. In a
resting state of satellite microphone assembly 100, accelerometer
114 may detect zero or minimal acceleration, ignoring any effects
of gravity. For example, a resting state might correspond to
satellite microphone assembly 100 resting flat on a table. In a
resting state, volume control electronics 110 are enabled and
operative to capture input to the actutatable button function of
top surface 101 and volume level adjustment input to sidewall 102.
The resting state may be determined instantaneously or determined
over some pre-defined period of time. In the resting state,
satellite microphone assembly 100 functions normally and as
described above.
[0028] However, if satellite microphone assembly 100 is picked up
or otherwise physically moved, particularly during an active phone
call or other audio transmission session, one or more of the mute
function and the volume level adjustment function may be
inadvertently toggled or otherwise engaged. Such control inputs are
undesirable, and as such, accelerometer 114 is configured to detect
a moving state of satellite microphone assembly 100 and disable
volume control electronics 110. A moving state is generally
understood to correspond to a translational velocity along one or
more of the axes of detection of accelerometer 114, wherein
acceleration in the direction of each axis is either not currently
substantially equal to zero or has not remained substantially equal
to zero for some pre-defined period of time. By disabling volume
control electronics 110, any inadvertent input will be ignored, and
no mute or volume adjustments may be made until the satellite
microphone assembly 100 returns to a resting state. In some
embodiments, it may be possible to disable this feature of
satellite microphone assembly 100 and simply keep volume control
electronics 110 in a constantly enabled state.
[0029] FIG. 2A-2C illustrate exemplary embodiments for a mechanism
to capture a received user touch or user press of top surface 101
to engage the actuatable button function for toggling a mute/unmute
state of microphone 112. FIG. 2A illustrates a cross-sectional view
of an example embodiment 200a wherein top surface 101 and top
sidewall 102 are integrally connected to one another, or otherwise
rigidly fixed such that the two pieces move substantially together
when translated in the vertical direction indicated by arrow 250.
In other words, the cylindrical top portion composed of top surface
101 and top sidewall 102 is functionally a continuous, single piece
capable of vertical translation relative to base portion 104. In
such embodiments, the vertical translation is effectuated by a pair
of spring button assemblies 204a and 204b, which attach top surface
101 to base portion 104.
[0030] A connection point 206 is rigidly affixed at an upper end to
the interior surface of top surface 101, or may be integrally
formed with top surface 101 as a single component. At a lower end,
connection point 206 is slidably engagable with a spring portion
208. Spring portion 208 provides a resistive feedback force
responsive to the received user touch or user press of top surface
101, and may have a spring constant k that is tuned to provide
sufficient stiffness to reject accidental triggering of the
actuatable button function.
[0031] When a sufficiently forceful received user touch or press of
top surface 101 is registered, the cylindrical top portion is
displaced downwards, closer to base portion 104, and causes a
signal to be sent to volume control electronics 110 indicative that
spring button assemblies 204a and 204b have been actuated. Upon
receipt of this actuation signal, volume control electronics 110
toggles the mute/unmute status of microphone 114 and may also
correspondingly update volume indicator 140. The cylindrical top
portion remains fixed in this downwardly displaced position, until
a second sufficiently forceful received user touch or press is
registered at top surface 101 to actuate spring button assemblies
204a and 204b and cause the cylindrical top portion to displace
upwards, farther away from base portion 104, the restoring force
being provided by the spring portions 208. In order to allow the
cylindrical top portion to rotate freely about base portion 104 to
make volume adjustments, a circular track may be provided to engage
and support a bottom portion of spring button assemblies 204a and
204b. The location of the circular track in the cross section is
indicated at a circular track position 210.
[0032] FIG. 2B illustrates a cross-sectional view of an example
embodiment 200b wherein top surface 101 and top sidewall 102 are
not integrally connected to one another, or otherwise rigidly fixed
relative to one another. Top surface 101 may be actuated by a
received user touch or press and thereby be caused to translate
relative to top sidewall 102 and base portion 104 in the vertical
direction indicated by arrow 260. In such embodiments, persons of
ordinary skill in the art would appreciate that top sidewall 102
and base portion 104 are may be rigidly fixed relative to one
another in the vertical direction while remaining free to rotate
relative to one another. Spring button assemblies 204a and 204b
provide the same function as previously described wherein a
sufficiently forceful received user touch or press of top surface
101 causes volume control electronics 110 to toggle the mute/unmute
status of microphone 114, and a circular track position 210 is
provided to allow the free rotation of top surface 101 and top
sidewall 102 about base portion 104 to make volume adjustments.
[0033] FIG. 2C illustrates a cross-section view of an example
embodiment 200c that makes use of only a single spring button
assembly 224, here centrally disposed along the vertical axis of
the satellite microphone assembly 200c. In such embodiments, top
portion 101 and top sidewall 102 are integrally connected to one
another, or otherwise rigidly fixed such that the two pieces move
substantially together when translated, relative to base portion
104, in the vertical direction indicated by arrow 270.
[0034] Single spring button assembly 224 comprises a hollow outer
connector sleeve 226, and inner connector rod 228, a spring 232,
and a button switch 234. Outer connector sleeve 226 is rigidly
affixed at its upper end to the interior surface of top surface
101, or may be integrally formed with top surface 101 as a single
component, and may be additionally rigidly affixed along its hollow
interior with inner connector rod 228. Inner connector rod 228 is
affixed at its lower end to a top portion of spring 232, which
extends some vertical length before attaching, at its bottom
portion, to button switch 234, the button switch being rigidly
affixed to base portion 104 in the vertical direction.
[0035] As such, a sufficiently forceful received user touch or
press will cause top portion 101, top sidewall 102, outer connector
sleeve 226, inner connector rod 228, and spring 232 to
synchronously move through an identical vertical displacement. As
before, spring portion 232 provides a resistive feedback force
responsive to the received user touch or press of top surface 101,
and may have a spring constant k that is tuned to provide
sufficient stiffness to reject accidental triggering of the
actuatable button function of button switch 234. However, as such
embodiments may contain only a single spring, the spring constant k
may be larger than in various embodiments with two or more
springs.
[0036] Single spring button assembly 224 provides the same function
as previously described whereby when a sufficiently forceful
received user touch or press of top surface 101 is registered, the
cylindrical top portion is displaced downwards, closer to base
portion 104, and causes spring 232 to compress and actuate button
switch 234. Upon receipt of this actuation signal, volume control
electronics 110 toggles the mute/unmute status of microphone 114
and may also correspondingly update volume indicator 140. The
cylindrical top portion remains fixed in this downwardly displaced
position, until a second sufficiently forceful received user touch
or press of top surface 101 is registered and actuates single
spring button assembly 224 to cause the cylindrical top portion to
displace upwards, farther away from base portion 104, the restoring
force being provided by spring 232.
[0037] In order to allow the cylindrical top portion to rotate
freely about base portion 104 to make volume adjustments, in some
embodiments outer connector sleeve 226 and inner connector rod 228
may be arranged such that outer connector sleeve 226 (and the
attached cylindrical top portion) is free to rotate about inner
connector rod 228 and base portion 104. In various embodiments,
outer connector sleeve 226 and inner connector rod 228 may be
rigidly connected, with a rotation mechanism such as a bearing or
bushing used to permit the single spring button assembly 224 to
rotate freely relative to base portion 104.
[0038] In FIGS. 2A-2C, the rotation of top sidewall 102 is tracked
by optical sensor 120, although this rotation may also be detected
mechanically, through the use of devices such as potentiometers or
various control knobs. In example embodiments 200a-200c, a haptic
actuator 116 is provided to output vibrations tuned to produce a
tactile feedback as top sidewall 102 is rotated, although haptic
actuator 116 may or may not be required if a potentiometer or other
control knob is used, as would be appreciated by persons of
ordinary skill in the art.
[0039] FIG. 3 provides a schematic illustration of an example
satellite microphone assembly 300 using an optical encoder to
detect rotation and volume adjustment inputs. Satellite microphone
assembly 300 contains upper components 330, comprising optical
sensor 120 and haptic actuator 116, and base components 320,
comprising volume control electronics 110, microphone 112, and
accelerometer 114. Base components 320 are disposed in base portion
104 such that they remain below some height defined by the height
of base sidewall 103. Upper components 330 may also be disposed in
base portion 104, but are arranged such that they exceed the height
defined by the height of base sidewall 103, particularly in the
case of optical sensor 120. Two cable storage hooks 302a and 302b
may also be provided in a hollow storage portion 306 below base
portion 104, in order to store a connecting cable 150 (not
pictured) in a coiled storage position when satellite microphone
assembly 300 is not in use.
[0040] The interior surface of top sidewall 102 contains a
plurality of evenly spaced optical indicators 304, such that the
optical indicators are of a contrasting color with the remainder of
the interior surface. In FIG. 3, the plurality of optical
indicators 304 are depicted as shaded bars, with the interior
surface of top sidewall 102 depicted in white, although a person of
ordinary skill in the art would appreciate that a different pair of
contrasting colors may be used to allow optical sensor 120 to
detect the plurality of optical indicators 304 as they pass through
the sensor's line of sight. In some embodiments, optical sensor 120
may instead use a light source and reflective optical indicators
and detect the intensity of reflected light. Furthermore, while
optical indicators 304 are depicted as vertical lines or columns,
it is further appreciated that a variety of encoding means, such as
binary codes or Gray codes, may be used instead.
[0041] Because the plurality of optical indicators 304 are evenly
spaced, a number of identical sectors are defined between adjacent
optical indicators. For example, if there are 10 sectors along the
entire circular interior of top sidewall 102, and if optical sensor
120 detects two optical indicators passing consecutively in front
of the sensor, then top sidewall 102 must have been rotated through
at least one tenth of a full rotation, or 36.degree.. Therefore,
the limiting resolution of the optical detection system of such
embodiments is defined by the number of sectors, and therefore, by
the number of optical indicators. Depending on the number of
optical indicators comprising the plurality of optical indicators
304, a single volume adjustment step may be defined by a rotation
through one or more sectors, as detected by optical sensor 120 and
transmitted to volume control electronics 110.
[0042] In order for optical sensor 120 to detect information about
a direction of rotation of top sidewall 102, positional data must
also be encoded along the interior of top sidewall 102. Persons of
ordinary skill in the art would appreciate that this may be
accomplished through the use of the aforementioned binary codes or
Gray codes as the plurality of optical indicators 304, or through
an additional encoding track distinct from the plurality of optical
indicators 304. In such embodiments, optical sensor 120 is able to
distinguish clockwise rotation from counter-clockwise rotation, and
thereby output complete information about a direction and a degree
of rotation of the cylindrical top portion to volume control
electronics 110. Upon receipt of this information, volume control
electronics 110 transmits a command to execute the volume
adjustment, and may correspondingly update volume indicator 140. In
some embodiments, volume control electronics 110 may also send a
command to haptic actuator 116 to output vibrations tuned to
produce a tactile feedback as volume adjustments are made.
[0043] FIG. 4 illustrates a cutaway view of an example embodiment
400 of a satellite microphone assembly using a detent mechanism to
provide tactile feedback during volume adjustments. A cutaway line
460 indicates the top or maximum vertical height of base portion
104, and cutaway line 470 indicates the top or maximum vertical
height of top sidewall 102. A detent mechanism consists of a detent
head 420, mounted on the distal end of a detent spring assembly
424, which is slidably engageable with a detent body 422. Detent
body 422 is mounted on or above the horizontal plane defined by
cutaway line 460, and in some embodiments is rigidly affixed to
resist movement in any direction.
[0044] The interior surface of top sidewall 102 contains a
plurality of depressions 415, which are of a suitable diameter to
engage and partially contain detent head 420 when it is positioned
in a depression, and furthermore each serve to define a step or
adjustment in volume. In such embodiments, the plurality of
depressions 415 are identical and evenly spaced along the interior
surface of sidewall 102, each having some maximum depth at their
center and further having some minimum depth along their
circumference such that the circumference is substantially flush
with the interior surface of sidewall 102. In some embodiments, the
transition between the maximum depth and minimum depth of the
plurality of depressions 415 is gradual, for example tracing out a
straight line or smooth curve, such that detent head 420 can slide
smoothly in and out of any given depression. Detent body 422 is
further mounted such that the center of detent head 420 is
horizontally aligned with the center of each of the plurality of
depressions 415.
[0045] When detent head 420 is positioned in a first given one of
the plurality of depressions 415, detent spring assembly 424 is at
a maximally extended length in the horizontal direction 410. From
this position, and in the same direction 410, detent spring
assembly 424 must compress and shorten in length when the
cylindrical top portion and top sidewall 102 is rotated in a
clockwise or counter-clockwise direction 405, and detent head 420
beings to slide out of the first given depression. During this
compression, detent spring assembly 424 provides a resistive force,
as a portion of the rotational energy of top sidewall 102 must be
used to compress the spring. Once detent head 420 fully slides out
of the first given depression, and top sidewall 102 continues to
rotate in the same direction, detent spring assembly 424 remains in
a steady state of compression, and friction forces between detent
head 420 and the interior surface of top sidewall 102 provide an
additional resistive force against the rotation. In some
embodiments, the spring constant of detent spring assembly 424 or
the coefficient of friction between detent head 420 and the
interior surface of top sidewall 102 may be adjusted to modulate
the magnitude of the resistive force.
[0046] As top sidewall 102 rotates further, detent head 420
approaches a second given depression, adjacent to the first given
depression. Once detent head 420 makes contact with the sloped
surface of the second given depression, detent spring assembly 424
begins to extend from its previously compressed state, this
extension causing detent head 420 to slide towards the center of
the second given depression until detent spring assembly 424
returns to its maximally extended length, independent of any
external rotation forces applied to the cylindrical top portion or
top sidewall 102.
[0047] Once detent head 420 snaps into place in the center of the
second given depression, and detent spring assembly 424 is at its
maximally extended length, any oscillations that may have been
induced are dampened by the spring assembly as it is driven towards
a resting state wherein the center of detent head 420 and the
center of the second given depression lie on the same horizontal
plane. As such, the detent mechanism provides an arresting force to
the rotation of the cylindrical top portion and top sidewall 102,
which indicates that a discrete volume step input has been made. In
some embodiments, a potentiometer or other rotary knob is used to
detect the direction and degree of rotation of the cylindrical top
portion. In some embodiments an optical sensor 120 may be used to
detect the direction and degree of rotation of the cylindrical topo
portion. The information about the direction and degree of rotation
of the cylindrical top portion is transmitted to volume control
electronics 110, where the corresponding adjustments are made in
the volume level and volume indicator 140. In various embodiments,
a haptic actuator 116 may be used to provide additional tactile
feedback to that already provided by the detent mechanism.
[0048] FIGS. 5A and 5B illustrate an example embodiment of a
satellite microphone assembly 500 that uses electronic, touch
sensitive means rather than mechanical means to capture a volume
adjustment input and a user touch or press to toggle a mute/unmute
function of microphone 114. FIG. 5A illustrates an exterior view of
satellite microphone assembly 500, which in some embodiments may
contain no exterior moving parts, while FIG. 5B is a cutaway view
of the interior components of satellite microphone assembly 500,
depicting volume control electronics 110, microphone 112,
accelerometer 114, and haptic actuator 116.
[0049] Satellite microphone assembly 500 has a top surface 510
containing a display 510, which can be an LCD or LED screen, for
example. Display 510 can display a mute indicator 130 indicating a
mute status of microphone 112, although persons of ordinary skill
in the art would appreciate that display 510 may be used for a
variety of other purposes such as providing a user interface or
displaying additional information.
[0050] Top surface 501 can be sensitive to and detect user touches,
presses, and gestures, either within a defined area or over the
entirety of top surface 501, thereby being configured to be an
actuatable button to toggle mute/unmute of microphone 112. Top
surface 501 may be a resistive or a capacitive touchscreen in order
to detect user touches, presses, and gestures, although persons of
ordinary skill in the art would appreciate that other means may be
used to detect user touches, presses, and gestures on top surface
501. A received user touch, press, or gesture causes a signal to be
sent to volume control electronics 110, which, responsive to the
signal, will toggle the mute/unmute status of microphone 112 and
update mute indicator 130 displayed on display 510. In some
embodiments, a haptic actuator 116 can output a vibration to
provide tactile feedback to further indicate that the command to
toggle the mute/unmute status of microphone 112 has been received.
Persons of ordinary skill in the art would appreciate that further
configurations of touch inputs at top surface 501 may be
implemented as control means for satellite microphone assembly
500--for example, in some embodiments a sustained user touch or
press of top surface 501 may cause a temporary mute function,
wherein the status of microphone 112 is set to mute only while the
user touch or press is maintained.
[0051] Satellite microphone assembly 500 has a sidewall surface 502
containing a volume indicator 520. A plurality of currently active
volume bars 522 and a plurality of currently inactive volume bars
524 comprise a plurality of volume bars of volume indicator 520,
and the number of currently active volume bars 522 out of the
plurality of volume bars may indicate a current or user-selected
volume level. In such embodiments, volume indicator 520 may
comprise a single display panel or a number of distinct display
panels each defining one or more of the plurality of volume bars.
Persons of ordinary skill in the art would appreciate that a number
of different displays may be suitable for such embodiments, for
example flat or curved, LED or LCD displays, or furthermore, that
an array of lighting elements may be used in place of a display
panel.
[0052] Sidewall surface 502 can be sensitive to and detect user
touches, presses, and gestures, either within a defined area or
over the entirety of sidewall surface 502, thereby being configured
to receive volume level adjustment inputs. Sidewall surface 502 can
be a resistive or capacitive touchscreen in order to detect user
touches, presses, and gestures, although persons of ordinary skill
in the art would appreciate that other means may be used to detect
user touches or presses on sidewall surface 502. A received user
touch, press, or gesture causes a signal to be sent to volume
control electronics 110, which, responsive to the signal, will make
a corresponding adjustment in volume level and update volume
indicator 520. In some embodiments, volume may be adjusted by a
received user touch or press on sidewall surface 502, for example
wherein one touch or press on the portion of sidewall surface 502
corresponding to active volume bars 522 may reduce the volume level
by one step, and one touch or press on the portion of sidewall
surface 502 corresponding to inactive volume bars 524 may increase
the volume level by one step. Persons of ordinary skill in the art
will appreciate that various areas of sidewall surface 502 may be
assigned to correspond to touches or presses operative to either
increase or reduce the volume level. In such embodiments, a haptic
actuator 116 can output a vibration to provide tactile feedback to
further indicate that the command to adjust the volume level has
been received. In various embodiments, haptic actuator 116 may
output constant strength vibrations or vibrations whose strength is
a function of the current or user-selected volume level.
[0053] In some embodiments, sidewall surface 502 may detect swiping
or sliding gestures that can be calculated to have some non-zero
vector component along a circumferential direction 530, which may
be used as input to control volume level adjustments. For example,
as seen in the example of FIG. 5A, a swiping or sliding gesture
toward the right would cause volume control electronics 110 to
increase the volume level and update volume indicator 520
correspondingly, and a swiping or sliding gesture toward the left
would cause volume control electronics 110 to decrease the volume
level and update volume indicator 520 correspondingly. Volume
control electronics 110 may correlate the swiping or sliding
gesture input to an amount of volume level adjustment in a variety
of ways, for example, based on the distance of the gesture, the
speed of the gesture, or the width of the contact patch detected,
although persons of ordinary skill in the art would appreciate that
various embodiments may include other correlation factors between
the gesture input and the amount of volume level adjustment. It is
further appreciated that various embodiments may permit either
discrete or continuous adjustments in volume level.
[0054] In some embodiments, a haptic actuator 116 can output a
vibration to provide tactile feedback to further indicate that the
command to adjust the volume level has been received. In various
embodiments, haptic actuator 116 may output discrete vibrations, of
constant or variable strength, or haptic actuator 116 may output a
continuous vibration correlated to the current or user-selected
volume level.
[0055] An accelerometer 114 outputs acceleration data to volume
control electronics 110, thereby detecting either a resting state
or a movement state of satellite microphone assembly 500. While
illustrated as a constituent component of the volume control
electronics in FIG. 5B, persons of ordinary skill in the art would
appreciate that accelerometer 114 may be located anywhere within
the satellite microphone assembly 500 so long as it is
communicatively linked to the volume control electronics 110. In a
resting state of satellite microphone assembly 500, accelerometer
114 may detect zero or minimal acceleration, ignoring any effects
of gravity. For example, a resting state might correspond to
satellite microphone assembly 500 resting flat on a table. In a
resting state, volume control electronics 110 are enabled, and
operative to capture input from the actuatable button function of
top surface 501 and volume level adjustment input from sidewall
surface 502. The resting state may be determined instantaneously or
determined over some pre-defined period of time. In the resting
state, satellite microphone assembly 500 functions normally and as
described above.
[0056] However, if satellite microphone assembly 500 is picked up
or otherwise physically moved, particularly during an active phone
call or other audio transmission session, one or more of the
actuatable button function and the volume level adjustment function
may be inadvertently toggled or otherwise engaged. Such control
inputs are undesirable, and as such, accelerometer 114 is
configured to detect a moving state of satellite microphone
assembly 500 and disable volume control electronics 110. A moving
state is generally understood to correspond to a translational
velocity along one or more of the axes of detection of
accelerometer 114, wherein acceleration in the direction of each
axis is either not currently substantially equal to zero or has not
remained substantially equal to zero for some pre-defined period of
time. By disabling volume control electronics 110, any inadvertent
input will be ignored, and no mute or volume level adjustments may
be made until the satellite microphone assembly 500 returns to a
resting state. In some embodiments, it may be possible to disable
this feature of satellite microphone assembly 500 and simply keep
volume control electronics 110 in a constantly enabled state.
[0057] FIG. 6 provides a schematic illustration 600 of example
satellite microphone assembly 500. Satellite microphone assembly
500 contains external components 620, comprising one or more touch
screens 602 and one or more screen controllers 604, and internal
components 610, comprising control electronics 110, microphone 112,
accelerometer 115, and haptic actuator 116. Two cable storage hooks
302a and 302b may also be provided in a hollow storage portion 606
below the base of sidewall surface 502, in order to store a
connecting cable 150 (not pictured) in a coiled storage position
when satellite microphone assembly 500 is not in use.
[0058] FIG. 7 illustrates a block diagram of an example satellite
microphone assembly 700, with its constituent components contained
within the dotted lines. A base station 750 is communicatively
linked with satellite microphone assembly 700, as indicated by the
directionality of the arrow linking these two systems. At the
center of satellite microphone assembly 700 is a control
electronics 710, which may contain one or more processors for
receiving, analyzing, and transmitting data and commands or
instructions. A mute toggle 702 is linked to transmit data to
control electronics 710 indicative of an input to toggle the
mute/unmute status of a microphone 712, wherein the input may
comprise the actuation of a push button. Mute toggle 702 may use
mechanical means, electrical means, or some combination thereof to
receive input. Upon receipt of an input to toggle the mute/unmute
status of microphone 712, control electronics 710 transmits a
signal to toggle the mute/unmute status of microphone 712 and
additionally may update a visual indicator 708 such as an external
display or status light.
[0059] A volume control ring 706 is used to receive input for a
volume adjustment level, and may use mechanical means, electrical
means, or some combination thereof to receive input. A rotation
detection mechanism 704 monitors volume control ring 706 and
determines a direction and degree of rotation of volume control
ring 706, and may be implemented as an optical sensor or a rotary
knob in some embodiments. Rotation detection mechanism 704 outputs
information about the direction and degree of rotation of volume
control ring 706 to volume control electronics 710, which uses this
information to make corresponding updates in the volume level and
additionally may update a visual indicator 708 such as one or more
external displays or status lights.
[0060] When an input is received at control electronics 710 from
either rotation detection mechanism 704 or mute toggle 702, control
electronics 710 sends a signal to generate tactile feedback to a
haptic actuator 716. Haptic actuator 716 outputs one or more types
of vibrations to provide tactile feedback for at least one of a
volume level adjustment and a mute toggle. In various embodiments,
haptic actuator 716 may be replaced or supplemented with mechanical
means of providing tactile feedback, such as a detent
mechanism.
[0061] An accelerometer 714 may detect one of a resting state or a
moving state of satellite microphone assembly 700 and output data
to control electronics 710. Responsive to the detection of a
resting state, control electronics 710 remain enabled, and
responsive to the detection of a moving state, control electronics
710 are disabled for the duration of the moving state. In a resting
state of satellite microphone assembly 500, accelerometer 714 may
detect zero or minimal acceleration, ignoring any effects of
gravity. The resting state may be determined instantaneously or
determined over some pre-defined period of time. A moving state is
generally understood to correspond to a translational velocity
along one or more of the axes of detection of accelerometer 714,
wherein acceleration in the direction of each axis is either not
currently substantially equal to zero or has not remained
substantially equal to zero for some pre-defined period of time. In
some embodiments, it may be possible to disable this feature of
satellite microphone assembly 700 and simply keep control
electronics 710 in a constantly enabled state.
[0062] Microphone 712 is communicatively linked with control
electronics 710, as two-way communication is required for
microphone 712 to transmit captured audio data and for control
electronics 710 to transmit control signals to toggle the
mute/unmute status of microphone 712. In some embodiments, one or
more of base station 750, control electronics 710, and microphone
712 may be adapted to perform signal processing on the audio stream
captured at microphone 712, for example to remove background or
otherwise undesirable noise. Microphone 712 may record noise
generated by haptic actuator 716 or a detent mechanism as tactile
feedback is provided for a volume level adjustment, or microphone
712 may record noise generated by haptic actuator 716 or mute
toggle 702 as tactile feedback is provided for a toggle of the
mute/unmute status. Persons of ordinary skill in the art would
appreciate that this signal processing may be performed in analog
or digital fashion, and furthermore is not limited to be performed
solely on the above identified examples of background noise, nor
limited to be performed solely at one or more of the three
identified hardware locations.
[0063] Some of the embodiments described herein rely on software in
conjunction with hardware to carry out the described functions. It
will be understood by those of ordinary skill in the art that a
computing system such as illustrated in FIG. 8 can be used to store
and execute software that is effective to receive inputs from
hardware devices or instruct hardware device to provide outputs as
described herein. As such FIG. 8 illustrates a system bus computing
system architecture 800 wherein the components of the system are in
electrical communication with each other using a bus 805. Exemplary
system 800 includes a processing unit (CPU or processor) 810 and a
system bus 805 that couples various system components including the
system memory 815, such as read only memory (ROM) 820 and random
access memory (RAM) 825, to the processor 810. The system 800 can
include a cache of high-speed memory connected directly with, in
close proximity to, or integrated as part of the processor 810. The
system 800 can copy data from the memory 815 and/or the storage
device 830 to the cache 812 for quick access by the processor 810.
In this way, the cache can provide a performance boost that avoids
processor 810 delays while waiting for data. These and other
modules can control or be configured to control the processor 810
to perform various actions. Other system memory 815 may be
available for use as well. The memory 815 can include multiple
different types of memory with different performance
characteristics. The processor 810 can include any general purpose
processor and a hardware module or software module, such as module
1 832, module 2 834, and module 3 836 stored in storage device 830,
configured to control the processor 810 as well as a
special-purpose processor where software instructions are
incorporated into the actual processor design. The processor 810
may essentially be a completely self-contained computing system,
containing multiple cores or processors, a bus, memory controller,
cache, etc. A multi-core processor may be symmetric or
asymmetric.
[0064] To enable user interaction with the computing device 800, an
input device 845 can represent any number of input mechanisms, such
as a microphone for speech, a touch-sensitive screen for gesture or
graphical input, keyboard, mouse, motion input, speech and so
forth. An output device 835 can also be one or more of a number of
output mechanisms known to those of skill in the art. In some
instances, multimodal systems can enable a user to provide multiple
types of input to communicate with the computing device 800. The
communications interface 840 can generally govern and manage the
user input and system output. There is no restriction on operating
on any particular hardware arrangement and therefore the basic
features here may easily be substituted for improved hardware or
firmware arrangements as they are developed.
[0065] Storage device 830 is a non-volatile memory and can be a
hard disk or other types of computer readable media which can store
data that are accessible by a computer, such as magnetic cassettes,
flash memory cards, solid state memory devices, digital versatile
disks, cartridges, random access memories (RAMs) 825, read only
memory (ROM) 820, and hybrids thereof.
[0066] The storage device 830 can include software modules 832,
834, 836 for controlling the processor 810. Other hardware or
software modules are contemplated. The storage device 830 can be
connected to the system bus 805. In one aspect, a hardware module
that performs a particular function can include the software
component stored in a computer-readable medium in connection with
the necessary hardware components, such as the processor 810, bus
805, display 835, and so forth, to carry out the function.
[0067] For clarity of explanation, in some instances the present
technology may be presented as including individual functional
blocks including functional blocks comprising devices, device
components, steps or routines in a method embodied in software, or
combinations of hardware and software.
[0068] In some embodiments the computer-readable storage devices,
mediums, and memories can include a cable or wireless signal
containing a bit stream and the like. However, when mentioned,
non-transitory computer-readable storage media expressly exclude
media such as energy, carrier signals, electromagnetic waves, and
signals per se.
[0069] Methods according to the above-described examples can be
implemented using computer-executable instructions that are stored
or otherwise available from computer readable media. Such
instructions can comprise, for example, instructions and data which
cause or otherwise configure a general purpose computer, special
purpose computer, or special purpose processing device to perform a
certain function or group of functions. Portions of computer
resources used can be accessible over a network. The computer
executable instructions may be, for example, binaries, intermediate
format instructions such as assembly language, firmware, or source
code. Examples of computer-readable media that may be used to store
instructions, information used, and/or information created during
methods according to described examples include magnetic or optical
disks, flash memory, USB devices provided with non-volatile memory,
networked storage devices, and so on.
[0070] Devices implementing methods according to these disclosures
can comprise hardware, firmware and/or software, and can take any
of a variety of form factors. Typical examples of such form factors
include laptops, smart phones, small form factor personal
computers, personal digital assistants, and so on. Functionality
described herein also can be embodied in peripherals or add-in
cards. Such functionality can also be implemented on a circuit
board among different chips or different processes executing in a
single device, by way of further example.
[0071] The instructions, media for conveying such instructions,
computing resources for executing them, and other structures for
supporting such computing resources are means for providing the
functions described in these disclosures.
[0072] While various embodiments of the present invention have been
described above, it should be understood that they have been
presented by way of example only, and not limitation. Numerous
changes to the disclosed embodiments can be made in accordance with
the disclosure herein without departing from the spirit or scope of
the invention. Thus, the breadth and scope of the present invention
should not be limited by any of the above described embodiments.
Rather, the scope of the invention should be defined in accordance
with the following claims and their equivalents.
[0073] Although the invention has been illustrated and described
with respect to one or more implementations, equivalent alterations
and modifications will occur to others skilled in the art upon the
reading and understanding of this specification and the annexed
drawings. In addition, while a particular feature of the invention
may have been disclosed with respect to only one of several
implementations, such feature may be combined with one or more
other features of the other implementations as may be desired and
advantageous for any given or particular application.
[0074] The terminology used herein is for the purpose of describing
particular embodiments only and is not intended to be limiting of
the invention. As used herein, the singular forms "a", "an" and
"the" are intended to include the plural forms as well, unless the
context clearly indicates otherwise. Furthermore, to the extent
that the terms "including", "includes", "having", "has", "with", or
variants thereof are used in either the detailed description and/or
the claims, such terms are intended to be inclusive in a manner
similar to the term "comprising."
[0075] Unless otherwise defined, all terms (including technical and
scientific terms) used herein have the same meaning as commonly
understood by one of ordinary skill in the art to which this
invention belongs. Also, the terms "about", "substantially", and
"approximately", as used herein with respect to a stated value or a
property, are intend to indicate being within 20% of the stated
value or property, unless otherwise specified above. It will be
further understood that terms, such as those defined in commonly
used dictionaries, should be interpreted as having a meaning that
is consistent with their meaning in the context of the relevant art
and will not be interpreted in an idealized or overly formal sense
unless expressly so defined herein.
* * * * *