U.S. patent application number 13/236514 was filed with the patent office on 2012-01-12 for content distribution systems and methods.
Invention is credited to Paul Germeraad, Robert D. Widergren.
Application Number | 20120011221 13/236514 |
Document ID | / |
Family ID | 34520063 |
Filed Date | 2012-01-12 |
United States Patent
Application |
20120011221 |
Kind Code |
A1 |
Widergren; Robert D. ; et
al. |
January 12, 2012 |
Content Distribution Systems and Methods
Abstract
An electronic device comprises a first interface operable to
receive from a user a selection of a first data set and a processor
coupled to the first interface. The processor is operable to access
the selected first data set, determine if the user is authorized to
receive the first data set, and store the first data set on a
memory device.
Inventors: |
Widergren; Robert D.;
(Morgan Hill, CA) ; Germeraad; Paul; (Saratoga,
CA) |
Family ID: |
34520063 |
Appl. No.: |
13/236514 |
Filed: |
September 19, 2011 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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12184483 |
Aug 1, 2008 |
8028173 |
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13236514 |
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10970840 |
Oct 20, 2004 |
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12184483 |
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60512947 |
Oct 20, 2003 |
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Current U.S.
Class: |
709/217 |
Current CPC
Class: |
G06Q 30/02 20130101;
G06Q 20/18 20130101; G06Q 20/20 20130101; G07F 17/16 20130101; G06F
2221/0711 20130101; G06Q 20/1235 20130101; G06F 21/10 20130101;
G06Q 30/06 20130101; G06Q 20/123 20130101 |
Class at
Publication: |
709/217 |
International
Class: |
G06F 15/16 20060101
G06F015/16 |
Claims
1. A content dispensing system, comprising: a machine-readable
storage medium storing a plurality of data sets and one or more
executable programs, including distinct versions of one or more
executable programs, each version compatible with a respective
client system type, and each version of the one or more executable
programs for enabling performance of a respective data set by
client devices having the corresponding client system type; and at
least one interface configured to wirelessly transfer information
to a target device, wherein the information transferred to the
target device includes (A) a data set of the plurality of data sets
selected by a user of the target device, and (B) the version of an
executable program of the one or more executable programs that is
compatible with the respective client system type of a particular
client device; wherein the particular client device comprises a
device having a respective client system type and is configured to
execute programs compatible with the respective client system
type.
2. The content dispensing system of claim 1, further comprising a
system transmitter that transmits the information set via wireless
signals to a receiver of the target device.
3. The content dispensing system of claim 2, wherein the signals
are infrared signals or radio-frequency signals.
4. The content dispensing system of claim 2, wherein the signals
conform to a Bluetooth, Wi-fi or other wireless standard
communication protocol.
5. The content dispensing system of claim 1, wherein each version
of the one or more executable programs is compatible with a
respective operating system.
6. The content dispensing system of claim 1, wherein the client
device is a cellular phone, a personal computer, a hand held
electronic device, or other portable device.
7. The content dispensing system of claim 1, wherein the data set
includes encoded information comprising a unique serial number.
8. The content dispensing system of claim 1, further comprising a
user interface configured to receive identification of the target
device.
9. The content dispensing system of claim 1, wherein the target
device is a removable memory device.
10. The content dispensing system of claim 9, wherein the removable
memory device operates in accordance with a plug-and-socket
connection standard.
11. The content dispensing system of claim 9, wherein the removable
memory device operates in accordance with a USB standard.
12. The content dispensing system of claim 9, wherein the removable
memory operates in accordance with an IEEE 1394 standard.
13. The content dispensing system of claim 1, wherein the wireless
interface allows near-proximity wireless connectivity.
14. The content dispensing system of claim 1, further comprising a
user interface configurable to select a requested data set.
15. The content dispensing system of claim 1, wherein the system is
configured to determine whether the user is authorized to receive
the data set before the data set is wirelessly transferred to the
target device.
16. The content dispensing system of claim 1, wherein the content
dispensing system comprises a self contained vending machine.
17. The content dispensing system of claim 1, wherein a data set of
the plurality of data sets comprises digital multimedia content and
the one or more executable programs comprises one or more
player/decoder programs.
18. The content dispensing system of claim 1, further comprising a
user interface configured to receive payment for content.
19. A method of dispensing content, comprising: in a self contained
device: storing a plurality of data sets and one or more executable
programs, including distinct versions of one or more executable
programs, each version compatible with a respective client system
type, and each version of the one or more executable programs for
enabling performance of a respective data set by client devices
having the corresponding client system type; and transferring
information via a wireless interface, to a target device; the
information transferred to the target device includes (A) a data
set of the plurality of data sets selected by a user of the target
device, and (B) a executable program of the plurality of executable
programs that is compatible with a respective client system type of
a particular client device; wherein the particular client device
comprises a device having a respective client system type and is
configured to execute programs compatible with the respective
client system type.
20. The method of dispensing content of claim 19, wherein each
version of the one or more executable programs is compatible with a
respective operating system.
21. The method of dispensing content of claim 19, wherein the
client device is a cell phone, a personal computer, a hand held
electronic device, or other portable electronic device configured
to store the transferred data set.
22. The method of dispensing content of claim 19, wherein
transferring information via the wireless interface comprises
transmitting wireless signals to a receiver of the target
device.
23. The method of dispensing content of claim 22, wherein the
signals are infrared signals or radio-frequency signals.
24. The method of dispensing content of claim 22, wherein the
signals conform to a Bluetooth, Wi-fi or other wireless standard
communication protocol.
25. The method of dispensing content of claim 19, wherein the data
set includes encoded information comprising a unique serial
number.
26. The method of dispensing content of claim 19, further
comprising receiving identification of the target device.
27. The method of dispensing content of claim 19, wherein the
target device is a removable memory device.
28. The method of dispensing content of claim 27, wherein the
removable memory device operates in accordance with a
plug-and-socket connection standard.
29. The method of dispensing content of claim 27, wherein the
removable memory device operates in accordance with a USB
standard.
30. The method of dispensing content of claim 27, wherein the
removable memory device operates in accordance with an IEEE 1394
standard.
31. The method of dispensing content of claim 19, wherein the
wireless interface allows near-proximity wireless connectivity.
32. The method of dispensing content of claim 19, further
comprising receiving, via a user interface, selection of a
requested data set.
33. The method of dispensing content of claim 19, further
comprising determining whether the user is authorized to receive
the data set before the data set is wirelessly transferred to the
target device.
34. The method of dispensing content of claim 19, wherein the
self-contained device comprises a self contained vending
machine.
35. The method of dispensing content of claim 19, wherein the data
sets comprises digital multimedia content.
36. The method of dispensing content of claim 19, further receiving
payment for content.
37. A content dispensing system, comprising: a non-transitory
machine-readable storage medium storing a plurality of data sets
and one or more executable programs, including distinct versions of
one or more executable programs, each version compatible with a
respective client system type, and each version of the one or more
executable programs for enabling performance of a respective data
set by client devices having the corresponding client system type;
and at least one interface configured to wirelessly transfer
information to a respective client device, wherein the information
transferred to the respective client device includes (A) a data set
of the plurality of data sets selected by a user of the respective
client device, and (B) the version of an executable program of the
one or more executable programs that is compatible with the client
system type of the respective client device; wherein the respective
client device comprises a device that is configured to execute
programs compatible with the client system type of the respective
client device.
38. A method of dispensing content, comprising: in a self-contained
device: storing a plurality of data sets and one or more executable
programs, including distinct versions of one or more executable
programs, each version compatible with a respective client system
type, and each version of the one or more executable programs for
enabling performance of a respective data set by client devices
having the corresponding client system type; and transferring
information via a wireless interface, to a respective client
device; the information transferred to the respective client device
includes (A) a data set of the plurality of data sets selected by a
user of the particular client device, and (B) a executable program
of the plurality of executable programs that is compatible with the
client system type of the respective client device; wherein the
particular client device comprises a device that is configured to
execute programs compatible with the client system type of the
respective client device.
39. The method of dispensing content of claim 38, further
comprising requesting that the user identify the client device on
which the data set shall be stored.
Description
RELATED APPLICATIONS
[0001] This application is a continuation of U.S. application Ser.
No. 12/184,483, filed Aug. 1, 2008, which is a continuation to U.S.
application Ser. No. 10/970,840, filed Oct. 20, 2004, which claims
priority to U.S. Provisional Patent Application No. 60/512,947,
filed on Oct. 20, 2003, which are hereby incorporated by reference
in their entirety.
BACKGROUND OF THE INVENTION
[0002] Digital media, such as movies, music and games, are
increasingly popular. Although several prominent systems, such as
the Internet and/or cellular communications, of accessing digital
files exist, these systems assume that the party wishing to receive
the files has a medium to which to download the files. Moreover,
mobility of consumers mandates remote entertainment access for
situations where event streaming and download entertainment are not
practical.
SUMMARY OF EMBODIMENTS
[0003] According to an embodiment of the invention, a content
vending device includes memory storing a plurality of data sets and
a plurality of computer programs, and a device interface to
transfer information to a target device. Each of the computer
programs is compatible with a respective operating system of a
multiplicity of distinct operating systems, and each of the
computer programs is for execution by a respective target device,
having the operating system with which the computer program is
compatible, for enabling performance of a data set stored on the
target device. The target device is a portable device having a
respective operating system that is one of the multiplicity of
operating systems. The information transferred to the target device
includes (A) a data set of the plurality of data sets selected by a
user of the target device, and (B) a computer program of the
plurality of computer programs that is compatible with the
operating system of the target device.
[0004] In some embodiments, the data sets are digital multimedia
content files. In some embodiments, the content vending device is a
self-contained vending device.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] FIG. 1 is a schematic view of a system according to an
embodiment of the invention;
[0006] FIG. 2 is a functional block diagram of portions of the
system illustrated in FIG. 1 according to an embodiment of the
invention; and
[0007] FIG. 3 is a flow diagram of a method according to an
embodiment of the invention.
DETAILED DESCRIPTION
[0008] FIG. 1 is a schematic view of a point-of-sale (POS) device
10 coupled to a network 170, to which, in turn, are coupled content
providers 20, according to an embodiment of the invention. As
discussed more fully with reference to FIG. 2, the device 10 is
operable to receive from the content providers 20 over the network
170 data sets that comprise content files, such as digital audio
files, digital video files (sometimes called digital multimedia
content files), still images, text, executable software programs or
any other content transmittable in a digital format. The device 10
is further operable to dispense the data sets by storing on a
memory device, such as rewriteable digital memory storage media,
either supplied by a user or dispensed by the device 10, a data set
selected by the user. The device 10 stores the data set on the
memory device in exchange for a fee from, or in recognition of
another transactional arrangement with, the user. The memory device
on which the data set is stored may be coupled or couplable to a
client device 30 of the user, such as a personal computer, personal
digital assistant, cellular telephone or other electronic device
operable to present, for example, the video, audio and/or text
associated with the dispensed data set.
[0009] Specifically, the device 10 is operable to periodically
(e.g., nightly) receive for vending one or more data sets from the
content providers 20 over the network 170. The device 10 may also
send and receive transactional and other financial information via
the network 170. The network 170 may include one or more local-area
networks, one or more wide-area networks, such as the Internet, or
public switched telephone network. Although the embodiment
illustrated in FIG. 1 contemplates the device 10 receiving data
sets via electronic transmission over, for example, the network
170, the device 10 may alternatively receive the data files via
manual loading of data sets from data storage devices maintained
by, for example, an administrator of the device 10.
[0010] In an embodiment, the device 10 may be implemented as a
fully self contained vending machine or as an operator assisted
kiosk operation.
[0011] FIG. 2 illustrates components of and interaction between the
device 10 and a client device 30 according to an embodiment of the
invention. The device 10 includes the following components: a
receiver 40, a storage device 50 such as a hard disk drive, a
transmitter 60, a central processing unit (CPU) 70, a port 80, and
a network interface 90 according to an embodiment of the invention.
A bus 95 couples the device components to one another. In an
alternative embodiment, the receiver 40 and/or transmitter 60 may
be peripheral devices coupled to the device 10. The device 10 may
include a strong physical housing (not shown) with internal power
and damage notification elements (not shown) (i.e., Automatic
Teller like configurations) to electronically and physically
protect content. The storage device 50 may include buffered disks,
or other storage media, such as solid-state memory, for permitting
high speed loading of content onto drives. The storage device 50
may be capable of write rates of, for example, 35 Mbps to over 400
Mbps.
[0012] The device may further include or otherwise be coupled to
one or more interface mediums 15 to allow the device 10 and a user
to communicate with each other. As used herein, terms of
interaction between the device 10 and a user, such as, for example,
"receiving," "selecting," "requesting," and the like, are made with
reference to use of one or more of the mediums 15, unless otherwise
stated. The interface medium 15 may include a video display,
speakers, a cursor device, such as a mouse, and/or a keyboard. The
medium 15 may further include payment devices that allow the device
10 to receive or otherwise acknowledge payment by the user in
exchange for the user receiving the requested data set. Such
payment devices may include coin slots, currency accepters,
credit-card readers, smart-card readers, and/or radio frequency
identification devices.
[0013] In an embodiment, the client device 30 includes the
following components: a processor 100, a transmitter 110, a memory
120, a receiver 130, a removable storage device (RSD) port 140, and
a port 150. A bus 151 couples the client device components to one
another.
[0014] In operation, according to an embodiment of the invention, a
user of the client device 30 wishing to receive a data set for
presentation on the client device 30 may communicate to a selection
of the data set to the device 10.
[0015] For example, the user may prompt the device 10 to execute a
software application with which the user may interact via a medium
15. The software application may prompt the user to input
information identifying the file. This identifying information may
be input to the device 10 by, for example, selecting the data set
from a list of data sets generated by the device 10 to the medium
15, or inputting to the medium 15 a title of the data set.
[0016] After receiving an identification of the data set requested
by the user, the CPU 70 consults a table 160 of available data sets
(e.g., digital multimedia content files) that reside in the storage
device 50. Alternatively, the CPU 70 may access, via the network
interface 90, a similar table (not shown) of available data sets
stored, for example, on a remote server (not shown) associated with
the network 170.
[0017] Still referring to FIG. 2, the CPU 70 identifies the data
set requested by the user. In alternative embodiments, the data set
may be stored on the storage device 50 or may be retrieved by the
device 10 from a remote server (not shown) associated with the
network 170.
[0018] The device 10 may then prompt the user to pay to receive the
requested data set. The device 10 may prompt the user by, for
example, generating to the medium 15 a price list for each
requested data set. Alternatively, the device 10 may first provide
to the user, in a manner described in greater detail below, a
"preview" sample portion of the data set to enable the user to
evaluate the data set for purchase.
[0019] Once the CPU 70 verifies that payment for the data set has
been received, the device 10 may then request that the user
identify the memory device on which the requested data set shall be
stored. Depending on the type and location of the target memory
device, the device 10 may store the data set to the target memory
device in a variety of ways. For example, in an embodiment, the
transmitter 60 transmits the data set via signals 180 to the
receiver 130 of the client device 30. The signals 180 may be
infrared signals, radio-frequency signals that conform to a
communication protocol such as Bluetooth, or any other wireless
signals. This arrangement may thus allow near-proximity wireless
connectivity (e.g., Infrared, Wi-fi, Bluetooth) for content
transfer to computing-platform based storage media (e.g., Bluetooth
from device 10 to Cell Phone into MMC card storage on phone).
[0020] Alternatively, the CPU 70 can employ the port 80 to
communicate the instructions over a cable 190 to the port 150 of
the client device 30. The ports 80 and 150 may operate according to
any plug-and-socket connection standard such as Universal Serial
Bus or IEEE 1394, which are known in the art.
[0021] Still alternatively, the port 80 of the device 10 may
receive a RSD 200 such as a solid-state CompactFlash device.
Consequently, the CPU 70 may store the data set on the RSD 200. The
user can then disconnect the RSD 200 from the device 10 and connect
it to the RSD port 140 of the client device 30 so that the client
device can download the data set from the RSD via the RSD port. The
port 80 may be configured to accommodate the entire favorite
digital camera storage media forms (e.g., Memory stick, MMC card,
SD, Compact Flash etc), USB ports, PDA Cell-phone format storage
forms, all for writing/write-checking the data set into a
memory.
[0022] In an embodiment, the port 80 is operable to lock, in a
manner known in the art, the RSD 200 into a locked position during
the data set download process, during which the user may pursue
other activities with assurance that the RSD will not be removed in
the user's absence. The user may than disengage the RSD 200 from
the port 80 by, for example, a key (not shown) or identification
code supplied to the user by the device 10.
[0023] Still alternatively, the device 10 may include a supply unit
55 that is operable to store memory devices, such as RSDs. If
desired by the user, the device 10 may store a requested data set
on a memory device present in the supply unit 55 and subsequently
dispense the memory device to the user. As such, a user without a
storage medium but wishing to obtain a data set may purchase both
the data set and the storage device on which the data set is stored
from the device 10.
[0024] Still alternatively, the device 10, after identifying the
requested data set and the target storage medium indicated by the
user, may determine that the target medium has insufficient storage
space or is otherwise unsuited to receive the requested data set.
In this event, the CPU 70 may consult equipment specifications
stored, for example, on the storage 50 or other location in order
to identify equipment that the user may employ in order to receive
the requested data set. The device 10 may then generate to the
medium 15 a list of such equipment that the user may purchase from
the device 10 or elsewhere.
[0025] In an embodiment, the requested data set (e.g., a digital
multimedia content file) is encoded. Accordingly, the device 10,
when storing the requested data set on a target storage medium may
further store thereon a decoding data set that, when executed,
operates to decode the requested data set, thereby enabling
presentation of the requested data set. Techniques by which content
files and associated decoding data sets may be created and employed
by, for example, the device 10 are described in commonly owned U.S.
patent application Ser. No. 10/848,224, titled "Multimedia Storage
Systems and Methods," and filed May 17, 2004, the entirety of which
is hereby incorporated by reference.
[0026] Storage 50 may include a plurality of player/decoder program
files and may also include a plurality of decryption program files.
Each player/decoder program is a different version of the same
decoder software and is compatible with a respective different type
of electronic system, and/or is compatible with a respective
different operating system employable by an electronic system such
as the client device 30. Moreover, the decoder, of which each
player/decoder program is a different version, corresponds to the
scheme used to encode a file (or data set), such as a digital audio
file or digital multimedia content file, and is thus required in
order to decode the file (or data set). Similarly, each decryption
program is a different version of the same decryption software and
is compatible with a respective different type of electronic
system, and/or is compatible with a respective different operating
system employable by an electronic system such as the client device
30. Moreover, the decryption software, of which each decryption
program is a different version, corresponds to the scheme used to
encrypt the file (or data set), and is thus required in order to
decrypt the file (or data set).
[0027] The client device 30 may be a handheld device. Handheld
device operating systems typically contain instructions enabling an
inserted or associated memory card to run an autoexecute/autoload
program on the device. According to an embodiment of the present
invention, the memory 120 in client device 30 is partially
formatted using a file allocation table (FAT) format per the
standard for an MMC card. Using this file format, a directory is
made and named for a host device such as the client device 30. This
directory includes at least one autoloading program compatible with
the particular type of the client device 30 and may include several
programs, each of which may be compatible with a respective
different electronic system and/or operating system associated
therewith.
[0028] The device 10 may otherwise provide digital rights
management (DRM) and content protection for all the contained and
dispensed content by employing systems already in place for content
protection/DRM such as that standardized by Internet Groups and the
International Telecommunications Union (ITU). Every data set
dispensed will contain its own serial number so that unauthorized
use may be traced and prosecuted. The serial number cannot be
changed without at the same time erasing as least some of the
content of the data set. The data sets (e.g., digital multimedia
content files) transmitted to the customer's storage media device
may also be constrained to play from that device only. If the
attempt is made by the customer to copy the media onto any other
storage than that originally dispended onto, the media will not
play.
[0029] For example, a content anti-copy mechanism may be used when
writing content to memory cards, whereby the serial number of the
memory device is utilized. This process requires that the serial
number of the card be read by the device 10 and then written onto
the card as part of the data set, as well as loaded with the data
player/decoder on the card.
[0030] Should the card data be subsequently copied on to another
medium such as a second programmable flash card, the files would
not play since the new card would have a different serial number
from the original. Thus the card would act as a dongle preventing
play of the data by its own self-contained player. Use of video
players on a playing device (e.g., cell phone) would not permit
this manner of anti-copy protection.
[0031] The number of plays that will be allowed for a given price
may be accommodated by the device 10, such that, for example, a
rental movie can be played but once (or N times) as contrasted
against a music video which would normally receive unlimited
plays.
[0032] This limitation whereby the number of plays may be limited
in a pay per view application may be achieved by utilizing
rewritable cards such as flash memory cards. Read-only and write
once flash cards may not be employed for this method. The device 10
may, when reading a card, be able to determine whether the card is
a multi-time programmable card. In the event that the card is
programmable, the software associated with the player accompanying
the data set will implement a count down on play cycles and write
the same to the card upon the completion of each play. When the
N-views have been counted for which N was paid, the player will
limit the plays to that specified by reading and comparing the
counts written on the card. The player may, after this limit has
been reached, scramble the original data file.
[0033] When writing new content onto the customer's rewriteable
disk storage media, the device 10 may automatically recognize and
utilize storage areas on the storage device/card which have been
previously used for content for which use has now expired. The
device 10 will allow a customer to block files from being
overwritten with new content by, for example, allowing the customer
to specify the memory portions into which content should be
written.
[0034] Other embodiments of the arrangement shown in FIGS. 1 and 2
are contemplated. For example, the client device 30 and device 10
may respectively include more or fewer than all of the components
illustrated in FIG. 2. For example, if the device 10 and client
device 30 communicate only via a wireless channel, then the device
10 may omit the port 80.
[0035] FIG. 3 illustrates a process of providing a data set
according to an embodiment of the invention. Beginning at a step
300, a user wishing to receive a data set provides an indication of
his/her data set selection to the device 10. After receiving an
identification of the data set, at a step 310, the device 10
determines if the user is authorized to receive the data set (i.e.,
whether the user has paid for the data set). Subsequently, at a
step 320, the device 10 determines whether the user has identified
an appropriate target memory device or whether the user requires
additional or other equipment. At a step 330, the device 10
accesses the requested data set. Subsequently, at a step 340, the
device 10 stores the requested data set on the target memory
device.
[0036] The conflux of several new technologies and trends lend
themselves to embodiments of the invention described herein. For
example, video and audio compression advances make it possible for
near DVD quality movies with high-fidelity sound to be stored in a
fraction of the storage earlier required (e.g., a 93 minute near
DVD quality, movie can be stored with spare on a 512 MB USB Flash
Drive). Thus on the internal storage of the device 10, where, for
example, a terabyte (four 250-GB Disk Drives) can easily and
inexpensively now be accommodated, thousands of movies, music
videos and high quality audiotracks can be accessed.
[0037] The device 10 may dispense content encoded in technology
other than that employed in DVD movies or on CD players. The
decoder contained with a data set is utilized by the general
purpose processor of the computing platform to decode and render
the video/audio and must be adaptable to operating system and
"playing platform" CPU and video configuration. The decoder will
not be specified for any particular "standard' and may be anything
which renders good quality. The owner or administrator of the
device 10 may provide for the encoding of the data and provide
DRM/content protection to the satisfaction of the content
owner/licensor. Provision may be made for license fees/per
dispensation to be collected by the device 10 owner and paid to the
content owner.
[0038] Inexpensive rewriteable digital memory forms promote
implementation of embodiments of the invention described herein.
Principally flash memory and its successors, which were pioneered
for digital cameras, have now penetrated into the computer memory
field and are the storage form of choice for portable applications
as evidenced by their embrace by PDA's, cell phones, and now are
the desktop/laptop portable storage form of choice. Capacities on
the market already are in the 4 GB/device range, enough to
accommodate many movies at a time. The I/O data rates of these
memories are also already such that a 90 minute movie could be
loaded from the device 10 onto a memory within a matter of less
than 10 seconds at the nominal rates (400+Mbps). Not all memory
forms may be that rapid, and may require more time to load a
90-minute movie. Locks known in the art that prevent removal of
consumer storage devices absent an unlock code or physical security
identification means, such as a key, may be provided in connection
with the device 10, and allow the consumer to walk around the
store, e.g., supermarket, during the content download.
[0039] High speed general purpose computing processors with video
output capability now exist in all computing platforms, such as
desktops, laptops, PDA's and cellphones. Some devices are already
on the market for reading memory cards and converting the output
for input to a TV set (e.g., Vosonic Digiviewer 3020).
[0040] Advanced audio processing now exists to convert a normal
stereo signal into high-fidelity sound without adding significant
bandwidth to the coded signals. These technologies promise new form
for earlier released sound tracks.
[0041] Computer program code for carrying out operations of
embodiments of the present invention, such as, for example, the
described operation of the CPU 70, may be written in an
object-oriented programming language, such as JAVA, Smalltalk, or
C++. Computer program code for carrying out these operations may
also, however, be written in conventional procedural programming
languages, such as the C programming language or compiled Basic
(CBASIC). Furthermore, some modules or routines may be written in
assembly language or even micro-code to enhance performance and/or
memory usage. In addition, at least one carrier signal may be
modulated with computer program code for carrying out the described
operations.
[0042] The preceding discussion is presented to enable a person
skilled in the art to make and use the invention. Various
modifications to the disclosed embodiments will be readily apparent
to those skilled in the art, and the generic principles herein may
be applied to other embodiments and applications without departing
from the spirit and scope of the present invention. Thus, the
present invention is not intended to be limited to the embodiments
shown, but is to be accorded the widest scope consistent with the
principles and features disclosed herein.
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