U.S. patent application number 13/677144 was filed with the patent office on 2013-03-21 for systems and methods for channel pairing a transmitter and a receiver.
This patent application is currently assigned to SIRF Technology, Inc.. The applicant listed for this patent is SIRF Technology, Inc.. Invention is credited to Ronald Clayton Alford, Noshir Dubash, Douglas W. Schucker.
Application Number | 20130072122 13/677144 |
Document ID | / |
Family ID | 42241099 |
Filed Date | 2013-03-21 |
United States Patent
Application |
20130072122 |
Kind Code |
A1 |
Alford; Ronald Clayton ; et
al. |
March 21, 2013 |
SYSTEMS AND METHODS FOR CHANNEL PAIRING A TRANSMITTER AND A
RECEIVER
Abstract
Systems and methods for channel pairing a transmitter and a
receiver are provided. In this regard, a representative method,
among others, includes selecting a channel in a radio frequency
(RF) band; transmitting a carrier and alert tone on the selected
channel in the RF band; responsive to detecting the transmitted
carrier and alert tone, demodulating the carrier and alert tone on
the selected channel in the RF band and producing the demodulated
alert tone; and responsive to detecting the produced alert tone,
using the selected channel to establish a wireless link between the
transmitter and receiver.
Inventors: |
Alford; Ronald Clayton;
(Austin, TX) ; Dubash; Noshir; (Chandler, AZ)
; Schucker; Douglas W.; (Gilbert, AZ) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SIRF Technology, Inc.; |
San Jose |
CA |
US |
|
|
Assignee: |
SIRF Technology, Inc.
San Jose
CA
|
Family ID: |
42241099 |
Appl. No.: |
13/677144 |
Filed: |
November 14, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
12332590 |
Dec 11, 2008 |
8335471 |
|
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13677144 |
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Current U.S.
Class: |
455/41.2 |
Current CPC
Class: |
H04W 72/02 20130101;
H04W 4/80 20180201; H04W 76/10 20180201 |
Class at
Publication: |
455/41.2 |
International
Class: |
H04W 76/02 20060101
H04W076/02; H04W 4/00 20060101 H04W004/00 |
Claims
1. A method for establishing wireless communication with a
transmitter, comprising: transmitting a carrier and alert tone on a
channel in a radio frequency (RF) band by the transmitter, wherein
the carrier and alert tone is demodulated on the channel in the RF
band, and the demodulated alert tone is produced by an audio
generator that is not electrically coupled to the transmitter; and
responsive to detecting the produced alert tone by an audio
detector that is electrically coupled to the transmitter, using the
channel to establish a wireless communication with the
transmitter.
2. The method as defined in claim 1, further comprising: responsive
to not detecting the produced alert tone on the channel, selecting
other channels in the RF band and repeating in claim 1 the steps of
transmitting, demodulating, producing, and using the selected other
channels until the alert tone is detected.
3. The method as defined in claim 2, wherein the step of selecting
the other channels in the RF band is achieved by sequentially
selecting others channels until the alert tone is detected.
4. The method as defined in claim 1, further comprising:
simultaneously transmitting on multiple channels with respective
unique alert tones; determining whether one of the unique alert
tones is detected; and responsive to detecting one of the unique
alert tones on one of the respective multiple channels, using the
one channel of the multiple channels associated with the detected
unique alert tone to establish the wireless link between the
transmitter and receiver.
5. The method as defined in claim 1, further comprising:
transmitting the channel at the maximum RF power allowed, and, once
pairing has been achieved, reducing the maximum RF power of the
channel by performing at least one of the following: reducing the
RF power of the channel until the alert tone is no longer detected;
and increasing the RF power of the channel by a predetermined
amount to provide a minimum acceptable signal-to-noise ratio
wireless link.
6. The method as defined in claim 1, further comprising:
sequentially selecting channels in the RF band; determining whether
each of the sequentially selected channels has low received signal
strength indication (RSSI); and responsive to determining that any
of the selected channels have low RSSI, recording the low RSSI
channels in an RSSI map of empty channels, wherein the transmitter
is a transceiver.
7. The method as defined in claim 6, further comprising selecting
one of the low RSSI channels in the RSSI map of empty or unoccupied
channels and using the selected low RSSI channel for channel
pairing the transceiver and receiver.
8. The method as defined in claim 6, further comprising:
transmitting audio using the channel; periodically determining
whether audio is being transmitted; and responsive to determining
that audio is not being transmitted, selecting one of the low RSSI
channel in the RSSI map of empty channels and using the selected
low RSSI channel for channel pairing the transceiver and
receiver.
9. The method as defined in claim 1, further comprising:
sequentially selecting channels in the RF band; determining an RSSI
level of each of the sequentially selected channels; and recording
the RSSI level of each of the sequentially selected channels in a
channel map, wherein the transmitter is a transceiver.
10. The method as defined in claim 9, further comprising:
determining a transmission power level that is a predetermined
amount above the recorded RSSI level of each of the sequentially
selected channels in the channel map; and transmitting the carrier
and alert tone on any of the sequentially selected channels at the
respective determined transmission power level.
11. The method as defined in claim 1, further comprising
transmitting the alert tone that is inaudible to a user by
performing at least one of the following: spreading the alert tone
across the selected channel bandwidth, resulting in the alert tone
to be inaudible to the user; and modulating the alert tone to be
either high or low in frequency to be inaudible to the user.
12. A system for establishing wireless communication with a
transmitter comprising: a transmitter that transmits a carrier and
alert tone on a channel in a radio frequency (RF) band; and a
receiver that receives and demodulates the carrier and alert tone,
the receiver having an audio generator that produces the
demodulated alert tone, the transmitter having an audio detector
that detect detects the produced alert tone, responsive to
detecting the produced alert tone, the transmitter being configured
to use the channel to establish a wireless link between the
transmitter and receiver.
13. The system as defined in claim 12, wherein responsive to not
detecting the produced alert tone on the channel, the transmitter
selects other channels in the RF band and transmits the carrier and
the alert tone on the selected other channels, the receiver being
configured to receive and demodulate the carrier and alert tone on
the selected other channels, the audio generator associated with
the receiver being configured to produce the demodulated alert tone
on the selected other channels, the audio detector associated with
the transmitter being configured to detect the produced alert tone,
responsive to detecting the produced alert tone on the selected
other channels, the transmitter being configured to use the
selected other channels to establish a wireless link between the
transmitter and receiver
14. The system as defined in claim 13, wherein the transmitter
selects other channels by sequentially selecting other channels
until the alert tone is detected.
15. The system as defined in claim 12, wherein the transmitter
performs the following: simultaneously transmit on multiple
channels with respective unique alert tones; determine whether one
of the unique alert tones is detected; and responsive to detecting
the one of the unique alert tones on the one of the respective
multiple channels, use the one channel of the multiple channels
associated with the detected unique alert tone to establish a
wireless link between the transmitter and receiver.
16. The system as defined in claim 15, wherein the transmitter
determines whether one of the unique alert tones is detected by
simultaneously searching for a detected unique alert tone on each
channel.
17. The system as defined in claim 12, wherein the transmitter
transmits the channel at the maximum RF power allowed and reduces
the maximum RF power of the channel by performing at least one of
the following: reduce the RF power of the channel until the alert
tone is no longer detected, and increase the RF power of the
channel by a predetermined amount to provide a minimum acceptable
signal-to-noise ratio wireless link.
18. The system as defined in claim 12, wherein the transmitter is a
transceiver, which performs at least one of the following:
sequentially select channels in the RF band; determine whether each
of the sequentially selected channels has low RSSI; and responsive
to determining that any of the sequentially selected channels have
low RSSI, record the low RSSI channels in an RSSI map of empty
channels.
19. The system as defined in claim 18, wherein the transceiver
selects one of the low RSSI channels in the RSSI map of empty
channels and uses the selected low RSSI channel for channel pairing
the transceiver and the receiver.
20. The system as defined in claim 18, wherein the transceiver
further performs the at least one of the following: transmit audio
using the channel; periodically determine whether audio is being
transmitted; and responsive to determining that audio is not being
transmitted, select one of the low RSSI channels in the RSSI map of
empty channels and use the selected low RSSI channel for channel
pairing the transceiver and receiver.
21. The system as defined in claim 12, wherein the transmitter is a
transceiver, which performs at least one of the following:
sequentially select channels in the RF band; determine a RSSI level
of each of the selected channels; and record the RSSI level of each
of the sequentially selected channels in a channel map.
22. The system as defined in claim 21, wherein the transceiver
determines a transmission power level that is a predetermined
amount above the recorded RSSI level of each of the sequentially
selected channels in the channel map and transmits the carrier and
alert tone on any of the sequentially selected channels at the
respective determined transmission power level.
23. The system as defined in claim 12, wherein the transmitter
transmits the alert tone that is inaudible to a user by performing
at least one of the following: spread the alert tone across the
selected channel bandwidth, resulting in the alert tone to be
inaudible to the user; and modulate the alert tone to be either
high or low in frequency to be inaudible to the user.
24. A system for establishing wireless communication between a
transmitter and a receiver comprising: a transmitter that transmits
on a channel in a radio frequency (RF) band; and a receiver that
receives and demodulate the carrier and alert tone, the receiver
having an audio generator that produces the demodulated alert tone,
the transmitter having an audio detector that is configure to
detect the produced alert tone on the channel, responsive to
detecting the produced alert tone on the channel, the transmitter
uses the channel to establish a wireless link between the
transmitter and receiver, responsive to not detecting the produced
alert tone, the transmitter being configured to sequentially select
other channels whereby the transmitter and receiver being
configured to repeat the above mentioned functionalities until the
alert tone is detected and a wireless link is established between
transmitter and receiver.
Description
TECHNICAL FIELD
[0001] The present disclosure is generally related to transmitting
and receiving devices and, more particularly, is related to systems
and methods for channel pairing a transmitter and a receiver.
BACKGROUND
[0002] Multiple vendors presently offer compact FM transceivers
that scan the commercial broadcast band and suggest unoccupied
channels to use when channel pairing the compact transceiver to a
local receiver. These approaches typically involve manually
matching the transmitter and receiver channels. Manually matching
the transmitter to the receiver channel can be a nuisance as well
as a distraction to users, particularly when driving.
SUMMARY
[0003] Systems and methods for channel pairing a transmitter and a
receiver are provided. In this regard, a representative system,
among others, includes a transmitter and receiver. The transmitter
selects a channel in a radio frequency (RF) band and transmits a
carrier and alert tone on the selected channel in the RF band. The
receiver receives and demodulates the carrier and alert tone. The
receiver includes a speaker that produces the demodulated alert
tone. The transmitter includes a microphone that is configured to
detect the produced alert tone. Responsive to detecting the
produced alert tone, the transmitter is configured to use the
selected channel to establish a wireless link between the
transmitter and receiver.
[0004] In this regard, a representative method, among others,
includes selecting a channel in a radio frequency (RF) band;
transmitting a carrier and alert tone on the selected channel in
the RF band; responsive to detecting the transmitted carrier and
alert tone, demodulating the carrier and alert tone on the selected
channel in the RF band and producing the demodulated alert tone;
and responsive to detecting the produced alert tone, using the
selected channel to establish a wireless link between the
transmitter and receiver.
[0005] Other systems, methods, features, and advantages of the
present disclosure will be or become apparent to one with skill in
the art upon examination of the following drawings and detailed
description. It is intended that all such additional systems,
methods, features, and advantages be included within this
description, be within the scope of the present disclosure, and be
protected by the accompanying claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Many aspects of the disclosure can be better understood with
reference to the following drawings. The components in the drawings
are not necessarily to scale, emphasis instead being placed upon
clearly illustrating the principles of the present disclosure.
Moreover, in the drawings, like reference numerals designate
corresponding parts throughout the several views.
[0007] FIG. 1 is an overview of a system that channel pairs a
transmitter and receiver;
[0008] FIG. 2 is a high-level flow diagram that illustrates an
embodiment of the architecture, functionality, and/or operation of
the system 100, such as that shown in FIG. 1, having functionality
of transmitter and receiver pairing sequence;
[0009] FIG. 3 is a flow diagram that illustrates another embodiment
of the architecture, functionality, and/or operation of the system,
such as that shown in FIG. 1, having the functionality of a
transmitter and receiver pairing sequence;
[0010] FIG. 4 is a flow diagram that illustrates yet another
embodiment of the architecture, functionality, and/or operation of
the system, such as that shown in FIG. 1, having the functionality
of a transmitter and receiver pairing sequence using minimum radio
frequency (RF) transmission power;
[0011] FIG. 5 is a flow diagram that illustrates yet another
embodiment of the architecture, functionality, and/or operation of
the system, such as that shown in FIG. 1, having the functionality
of a transceiver and receiver pairing sequence using a low RSSI
channel; and
[0012] FIG. 6 is a flow diagram that illustrates yet another
embodiment of the architecture, functionality, and/or operation of
the system, such as that shown in FIG. 1, having the functionality
of a transceiver and receiver pairing sequence with periodic
autonomous re-sync.
DETAILED DESCRIPTION
[0013] Exemplary systems are first discussed with reference to the
figures. Although these systems are described in detail, they are
provided for purposes of illustration only and various
modifications are feasible. After the exemplary systems are
described, examples of flow diagrams of the systems are provided to
explain the process for channel pairing a transmitter and a
receiver.
[0014] Presently available short-range transmitters have to be
manually tuned in order for their transmit channel to match the
channel being received by a nearby receiver. The transmitter
described in this disclosure could automatically move to the same
channel as that which has been manually selected by the user of the
nearby receiver. This would enable the compact short-range
transmitter to take advantage of the audio output system of the
receiver and may eliminate the need for a redundant and potentially
lower performance audio output system on the compact transmitter
itself.
[0015] In one possible use-case, if a car driver is listening to a
recorded audio program via the wireless link between a short-range
transmitter and the car's receiver and a new geographical region is
entered in which the presently tuned receiver channel is occupied
by a higher power commercial broadcast station, the transmitter
described in this disclosure can automatically move to the
unoccupied channel manually selected by the driver on the car's
receiver. The driver does not take the extra step to manually match
the transmitter channel to the car's receiver channel, facilitating
to minimize driver distraction, as well as increase convenience.
This use case would also apply to an on-going phone-call being
transmitted to the car stereo from a transmitter integrated in the
cell phone.
[0016] As another use-case example, if a car driver is listening to
a commercial radio broadcast and using a global positioning system
(GPS), turn-by-turn direction prompts from a global positioning
system (GPS) or a personal navigation device (PND) device can be
heard over the car's audio system regardless of which channel the
driver is listening to at the time. If a car driver changes the
receiver channel, the transmitter described in this disclosure can
remain paired with the tuned receiver channel such that
turn-by-turn directions continue to be heard by the driver on the
presently selected channel. This use case would also apply to audio
from an incoming phone call transmitted to the car stereo from a
transmitter integrated in the cell phone.
[0017] FIG. 1 is an overview of a system 100 that channel pairs a
transmitter 110 and receiver 125. It should be noted that the
transmitter 110 can be a transceiver as illustrated in FIG. 1. The
transmitter 110 selects a channel in a radio frequency (RF) band
and transmits a carrier and alert tone on the selected channel in
the RF band using an antenna 105. The receiver 125 receives the
carrier and alert tone using antenna 120 and demodulates the
carrier and alert tone. The receiver includes a speaker 130 that
produces the demodulated alert tone.
[0018] The transmitter 110 includes an audio microphone 115 that is
configured to detect the produced alert tone. Responsive to
detecting the produced alert tone, the transmitter 110 is
configured to use the selected channel to establish a wireless link
between the transmitter 110 and receiver 125. Detection of the
alert tones can be done by a variety of means at the transmitter
110. The audio picked up by the microphone 115 can be sent to a
correlator (not shown) that matches the audio signal against the
original alert tone being modulated and transmitted. A fast Fourier
transform (FFT) module (not shown) could also be used to check for
the presence of the alert tone or tones.
[0019] It should be noted that the transmitter 110 may be a
stand-alone transmitter or a transmitter integrated into another
portable device such as a cell phone, personal navigation device
(PND), personal digital assistant (PDA) or MP3 player. In some
cases, such as in a cell phone, the portable device may already
have in integrated microphone built into it, in which case the
transmitter 110 would have the capability to enable the existing
microphone and to access its output. The process of channel pairing
the transmitter 110 and receiver 125 is further described in
relation to FIGS. 2-6.
[0020] FIG. 2 is a high-level flow diagram that illustrates an
embodiment of the architecture, functionality, and/or operation of
the system 100, such as that shown in FIG. 1, having the
functionality of a transmitter and receiver pairing sequence. In
steps 205 and 210, the transmitter 125 (FIG. 2) selects a channel
in a radio frequency (RF) band and transmits a carrier and alert
tone on the selected channel in the RF band. Responsive to the
receiver 125 (FIG. 1) detecting the carrier and alert tone on the
selected channel, the receiver 125, in step 215, demodulates the
carrier and alert tone on the selected channel in the RF band and
produces the demodulated alert tone. Responsive to the transmitter
110 detecting the produced alert tone, the transmitter 110 uses the
selected channel to establish a wireless link between the
transmitter 110 and receiver 125.
[0021] FIG. 3 is a flow diagram that illustrates another embodiment
of the architecture, functionality, and/or operation of the system,
such as that shown in FIG. 1, having the functionality of a
transmitter and receiver pairing sequence. In steps 305 and 310, a
user manually tunes a receiver 125 (FIG. 1) to an unoccupied
channel and manually presses a button on a transmitter 110 (FIG. 1)
to begin the transmitter to receiver pairing sequence. In step 315,
the transmitter 110 transmits a carrier and alert tone at a maximum
transmission power on a first channel in the RF band. In step 320,
the receiver 125 receives and demodulates the transmitter carrier
and alert tone on the first channel. The receiver 125 further
produces the demodulated alert tone.
[0022] In step 325, the transmitter 110 uses the microphone 115
(FIG. 1) to detect the produced alert tone. In step 330, the
transmitter 110 determines whether the microphone 115 detects the
produced alert tone from the receiver 125. Responsive to the
transmitter 110 not detecting the alert tone, the transmitter 110
increments to the next channel in the RF band and transmits the
carrier and alert tone on the next incremented channel. The
sequence is repeated at step 320 using the next incremented channel
until the alert tone is detected. Responsive to the transmitter 110
detecting the alert tone, the transmitter 110 establishes a
wireless link between the transmitter 110 and receiver 125 using
the channel that the alert tone was on and detected. At step 340,
the transmitter 110 turns off the alert tone and begins
transmission of, e.g., recorded audio, via the transmitter and
receiver wireless link.
[0023] Alternatively or additionally, the transmitter 110 could
transmit simultaneously on multiple channels with respective unique
alert tones. The transmitter 110 can determine whether one of the
unique alert tones is detected. Responsive to detecting one of the
unique alert tones on one of the respective multiple channels, the
transmitter 110 uses the one channel of the multiple channels
associated with the detected unique alert tone to establish the
wireless link between the transmitter 110 and receiver 125.
[0024] FIG. 4 is a flow diagram that illustrates an embodiment of
the architecture, functionality, and/or operation of the system,
such as that shown in FIG. 1, having the functionality of a
transmitter and receiver sequence using minimum radio frequency
(RF) transmission power. The functionality and operation of the
system in FIG. 4 is similar to the functionality and operation of
the system in FIG. 3 and so the system in FIG. 4 includes steps
305, 310, 315, 320, 325, 330, 335, and 340.
[0025] The functionality and operation of the system in FIG. 4
further include step 405 where the transmitter 110 can
incrementally reduce the RF transmission power of the channel
associated with the detected alert tone until the alert tone is no
longer detected by the transmitter 110. In step 410, the
transmitter 110 can incrementally increase the RF transmission
power of the channel associated with the detected alert tone by a
predetermined amount to provide a minimum acceptable
signal-to-noise ratio wireless link. The functionality and
operation of the system in FIG. 4 can allow for a reduction in the
RF transmission power level while a user can listen to the recorded
audio on an empty channel.
[0026] FIG. 5 is a flow diagram that illustrates an embodiment of
the architecture, functionality, and/or operation of the system
100, such as that shown in FIG. 1, having the functionality of a
transceiver and receiver pairing sequence using a low RSSI channel.
The functionality and operation of the system in FIG. 5 is similar
to the functionality and operation of the system in FIG. 4 and so
the system in FIG. 5 includes steps 305, 310, 320, 325, 330, 340,
405, 410, and 415.
[0027] The functionality and operation of the system in FIG. 5
further include step 505 where the transceiver 110 can be
configured to receive the first channel in the RF band and
configured to indicate that low received signal strength indication
(RSSI) of the received channels are empty or unoccupied channels.
In step 510, the transceiver 110 can sequentially select channels
in the RF band and determine whether each of the selected channels
has low received signal strength indication (RSSI). In step 515,
the transceiver 110 records the low RSSI channels in an RSSI map of
empty or unoccupied channels. In step 520, the transceiver 110
determines whether the selected channel is at the end of the RF
band. The transceiver 110, in step 520, repeats step 510 until the
transceiver 110 determines whether the selected channel is at the
end of the RF band.
[0028] If the selected channel is at the end of the RF band, the
transceiver 110, at step 525, selects one of the low RSSI channels
in the RSSI map of empty or unoccupied channels and transmits the
selected low RSSI channel for channel pairing the transceiver 110
and receiver 125. Alternatively or additionally, the alert tones
could be spread across the bandwidth of the selected low RSSI
channel such that the user does not hear the tones. Alternatively
or additionally, the alert tones could be either high or low enough
in frequency to be inaudible to the user, while still detectable to
microphone 115 of the transceiver 110.
[0029] Alternatively or additionally, the transceiver 110, in step
505, can be configured to receive the first channel in the RF band
and record the received signal strength indication (RSSI) of the
received channel. In step 510, the transceiver 110 can sequentially
select all channels in the RF band and determine an RSSI level of
each of the selected channels. The transceiver 110, in step 520,
repeats step 510 until the transceiver 110 determines whether the
selected channel is at the end of the RF band. In step 515, the
transceiver 110 records the RSSI level of each of the selected
channels in a channel map. In step 525, the transceiver 110
determines a transmission power level that is a predetermined
amount above the recorded RSSI level of each of the selected
channels in the channel map and transmits the carrier and alert
tone on any of the selected channels at the respective determined
transmission power level.
[0030] One advantage, among others, is to allow the transceiver 110
and receiver 125 to synchronize regardless of whether the selected
channel is occupied or empty because the determined transmission
power level is high enough to over-ride any commercial broadcast
station signal being monitored on the received channel at the time.
For example, for a use-case in which turn-by-turn directions or
unanticipated audio is to be heard over the commercial broadcast
audio being received at the time, the channel map amplitude levels
recorded by the transceiver 110 allows the transceiver 110 to
transmit a large enough signal to block reception of the commercial
broadcast signal and allows the alert tones to be detected and the
unanticipated audio to be heard by the user via receiver 125.
[0031] The alert tone detection loop includes similar steps as in
FIG. 4, such as, steps 320, 325, and 330. However, the alert tone
detection loop in FIG. 5 further includes step 530 where the
transceiver 110 increments to the next empty channel in the RSSI
map of empty or unoccupied channels and transmits the carrier and
alert tone on the incremented empty channel. The functionality and
operation of the system in FIG. 5 can allow for a reduction in the
transmission power consumption while pairing the transceiver and
receiver, limiting the transceiver's operations during channel
pairing by checking the empty channels stored in the RSSI map of
empty or unoccupied channels instead of checking all available
channels in the RF band.
[0032] FIG. 6 is a flow diagram that illustrates an embodiment of
the architecture, functionality, and/or operation of the system
100, such as that shown in FIG. 1, having the functionality of a
transceiver and receiver pairing sequence with periodic autonomous
re-sync. The functionality and operation of the system in FIG. 6 is
similar to the functionality and operation of the system in FIG. 5
and so the system in FIG. 6 includes steps 305, 310, 320, 325, 330,
340, 405, 410, 415, 505, 510, 515, 520, 525, and 530.
[0033] The functionality and operation of the system in FIG. 6
include the transceiver 110 that can periodically determine whether
audio is being transmitted and allow a re-sync when audio is not
being transmitted. After the transceiver 110, in step 610, delays
for a pre-determined time, the transceiver 110, in step 615,
determines whether the audio is being transmitted. Responsive to
determining that audio is being transmitted, the transceiver 110,
in step 620, determines whether the user has disabled the periodic
autonomous re-sync feature.
[0034] If the user has disabled the re-sync feature, the
transceiver 110 stops the re-sync operation. If the user did not
disable the re-sync feature, the sequence repeats at step 610.
Responsive to determining that audio is not being transmitted, the
channel pairing sequence repeats at step 605 where the following
steps starting at 605 enable the transceiver 110 to select one of
the low RSSI channel in the RSSI map of empty channels and use the
selected low RSSI channel for channel pairing the transceiver 110
and receiver 125. The functionality and operation of the system in
FIG. 6 can allow the transceiver and receiver re-sync to
periodically occur without user intervention to track the user's
manual receiver channel changes.
[0035] It should be noted that any process descriptions or blocks
in flowcharts should be understood as representing modules,
segments, or portions of code which include one or more executable
instructions for implementing specific logical functions or steps
in the process. As would be understood by those of ordinary skill
in the art of the software development, alternate embodiments are
also included within the scope of the disclosure. In these
alternate embodiments, functions may be executed out of order from
that shown or discussed, including substantially concurrently or in
reverse order, depending on the functionality involved.
[0036] This description has been presented for purposes of
illustration and description. It is not intended to be exhaustive
or to limit the disclosure to the precise forms disclosed. Obvious
modifications or variations are possible in light of the above
teachings. The embodiments discussed, however, were chosen to
illustrate the principles of the disclosure, and its practical
application. The disclosure is thus intended to enable one of
ordinary skill in the art to use the disclosure, in various
embodiments and with various modifications, as are suited to the
particular use contemplated. All such modifications and variation
are within the scope of this disclosure, as determined by the
appended claims when interpreted in accordance with the breadth to
which they are fairly and legally entitled.
* * * * *