US5506866A
Expired / Lapsed
US
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Side-channel communications in simultaneous voice and data transmission
Assignee: WYNCOMM LLC
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Filing: 1993-11-15
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Granted: 1996-04-09
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Expires: 2013-11-15
Abstract
Abstract In a simultaneous voice and data communication system, a stream of signal points is partitioned into a plurality of symbol blocks, each symbol block including a data segment and a control segment. The data segment carries information from a user, i.e., user data, while the control segment provides control information. A voice signal is then added to at least a portion, or all, of the signal points of each symbol block to provide for simultaneous voice and data transmission to an opposite endpoint. The control information may represent information from a secondary data source, and/or may include information about the characteristics of the succeeding block, e.g., the user data rate, and information pertaining to characteristics of the communications channel.
Inventors
- 👤 Gordon Bremer
- 👤 Kurt E. Holmquist
- 👤 Kenneth D. Ko
- 👤 Keith A. Souders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:18
CPC Classifications
H; H04; H04M; H04M11/00; H04M11/06; H04L; H04L27/00; H04L27/32; H04L27/34; H04L27/345; H04L27/3461; H04L27/3477; H04Q; H04Q2213/00; H04Q2213/13034; H04Q2213/13103; H04Q2213/13106; H04Q2213/13174; H04Q2213/13199; H04Q2213/13201; H04Q2213/13204; H04Q2213/13213; H04Q2213/13216; H04Q2213/13292; H04Q2213/1332
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
75 words
A method for transmitting a side-channel in a simultaneous analog and digital communications system, the method comprising the steps of: multiplexing a plurality of symbol streams to provide a sequence of symbol blocks, where each symbol block includes a predefined number of symbols from each symbol stream; and transmitting each symbol block; wherein the step of transmitting further includes the step of adding to each symbol of each symbol block a signal point before transmission.
Claim 2
Independent Claim
75 words
A method for transmitting a side-channel in a simultaneous analog and digital communications system, the method comprising the steps of: multiplexing a plurality of symbol streams to provide a sequence of symbol blocks, where each symbol block includes a predefined number of symbols from each symbol stream; and transmitting each symbol block; wherein the step of transmitting further includes the step of adding to each symbol of each symbol block a signal point before transmission.
Claim 3
Dependent Claim
19 words
The method of claim 1 further including the step of encoding an analog signal to provide the signal point.
Claim 4
Dependent Claim
13 words
The method of claim 2 wherein the analog signal is a voice signal.
Claim 5
Dependent Claim
63 words
The method of claim 1 wherein the plurality of symbol streams is a data symbol stream and a control symbol stream and each symbol block includes a data segment and a control segment, wherein the data symbols of each symbol block are contiguously located within the data segment and the control symbols of each symbol block are contiguously located within the control segment.
Claim 6
Dependent Claim
42 words
The method of claim 4 wherein the control segment represents a fixed number of bits, Y, which is equal to the number of control symbols within a symbol block multiplied by a y number of bits from each of these control symbols.
Claim 7
Dependent Claim
14 words
The method of claim 5 wherein each control symbol represents x bits, and x>y.
Claim 8
Dependent Claim
18 words
The method of claim 6 wherein duplicate control information is conveyed by x-y bits of each control symbol.
Claim 9
Dependent Claim
14 words
The method of claim 4 wherein the data symbols represent a synchronous data stream.
Claim 10
Dependent Claim
20 words
The method of claim 4 wherein the data symbols represent an asynchronous data stream without the start and stop bits.
Claim 11
Dependent Claim
32 words
The method of claim 4 wherein at least a portion of the control information conveyed by a current control segment is a function of the information conveyed by a succeeding symbol block.
Claim 12
Independent Claim
145 words
A method for transmitting side information in a simultaneous analog and data communications system, the method comprising the steps of: encoding a data signal to provide a number of data symbols, J, over a period of time equal to T 1 ; encoding at least one control signal to provide a number of control symbols, K, over a period of time equal to T 2 , where the control signal represents control information; multiplexing the number of data symbols and the number of control symbols to provide a symbol block comprising the J+K symbols; encoding an analog signal to provide a number of signal points over the time period T 1 +T 2 ; adding each one of the signal points to a respective symbol of the symbol block to provide a number of resultant signal points; and transmitting the number of resultant signal points.
Claim 13
Independent Claim
145 words
A method for transmitting side information in a simultaneous analog and data communications system, the method comprising the steps of: encoding a data signal to provide a number of data symbols, J, over a period of time equal to T 1 ; encoding at least one control signal to provide a number of control symbols, K, over a period of time equal to T 2 , where the control signal represents control information; multiplexing the number of data symbols and the number of control symbols to provide a symbol block comprising the J+K symbols; encoding an analog signal to provide a number of signal points over the time period T 1 +T 2 ; adding each one of the signal points to a respective symbol of the symbol block to provide a number of resultant signal points; and transmitting the number of resultant signal points.
Claim 14
Dependent Claim
41 words
The method of claim 11 wherein the symbol block has a data segment and a control segment, wherein the J data symbols are contiguously located within the data segment and the K control symbols are contiguously located within the control segment.
Claim 15
Dependent Claim
20 words
The method of claim 11 wherein the data symbols and the control symbols are selected from the same signal space.
Claim 16
Dependent Claim
23 words
The method of claim 11 wherein the control information conveyed by a current symbol block is a function of a succeeding symbol block.
Claim 17
Dependent Claim
17 words
The method of claim 14 wherein the control information represents adaptive gain information for the succeeding block.
Claim 18
Dependent Claim
18 words
The method of claim 14 wherein the control information conveys data rate information for a succeeding symbol block.
Claim 19
Dependent Claim
41 words
The method of claim 12 wherein the control segment represents a fixed number of bits, Y, which is equal to the K control symbols within a symbol block multiplied by a y number of bits from each of these control symbols.
Claim 20
Dependent Claim
14 words
The method of claim 17 wherein each control symbol represents x bits, and x>y.
Claim 21
Dependent Claim
18 words
The method of claim 18 wherein duplicate control information is conveyed by x-y bits of each control symbol.
Claim 22
Dependent Claim
14 words
The method of claim 11 wherein the data symbols represent a synchronous data stream.
Claim 23
Dependent Claim
24 words
The method of claim 11 wherein the data signal represents an asynchronous character stream, each asynchronous character having a start and a stop bit.
Claim 24
Dependent Claim
20 words
The method of claim 21 wherein the data encoding step removes the start and stop bit from each asynchronous character.
Claim 25
Independent Claim
71 words
A method for use in a modem comprising the steps of: demultiplexing a stream of received signal points from a far-end modem to provide a plurality of signal point streams; decoding each one of the plurality of signal points streams to provide a respective plurality of symbol streams; and decoding each one of the received signal points as a function of the plurality of symbol streams to provide an analog signal.
Claim 26
Independent Claim
71 words
A method for use in a modem comprising the steps of: demultiplexing a stream of received signal points from a far-end modem to provide a plurality of signal point streams; decoding each one of the plurality of signal points streams to provide a respective plurality of symbol streams; and decoding each one of the received signal points as a function of the plurality of symbol streams to provide an analog signal.
Claim 27
Dependent Claim
13 words
The method of claim 23 wherein the analog signal is a voice signal.
Claim 28
Dependent Claim
53 words
The method of claim 23 wherein the step of decoding each one of the plurality of signal points streams further includes the steps of: providing a data signal from one of the plurality of signal point streams; and providing a control signal :from a different one of the plurality of signal point streams.
Claim 29
Dependent Claim
24 words
The method of claim 25 further including the step of adjusting the analog signal as a function of information conveyed by the control signal.
Claim 30
Dependent Claim
75 words
Apparatus for transmitting a side-channel in a simultaneous analog and digital communications system, the apparatus comprising: means for multiplexing a plurality of symbol streams to provide a sequence of symbol blocks, where each symbol block includes a predefined number of symbols from each symbol stream; and means for transmitting each symbol block; wherein the means for transmitting further includes a means for adding to each symbol of each symbol block a signal point before transmission.
Claim 31
Dependent Claim
75 words
Apparatus for transmitting a side-channel in a simultaneous analog and digital communications system, the apparatus comprising: means for multiplexing a plurality of symbol streams to provide a sequence of symbol blocks, where each symbol block includes a predefined number of symbols from each symbol stream; and means for transmitting each symbol block; wherein the means for transmitting further includes a means for adding to each symbol of each symbol block a signal point before transmission.
Claim 32
Dependent Claim
19 words
The apparatus of claim 27 further including a means for encoding an analog signal to provide the signal point.
Claim 33
Dependent Claim
13 words
The apparatus of claim 27 wherein the analog signal is a voice signal.
Claim 34
Dependent Claim
63 words
The apparatus of claim 27 wherein the plurality of symbol streams is a data symbol stream and a control symbol stream and each symbol block includes a data segment and a control segment, wherein the data symbols of each symbol block are contiguously located within the data segment and the control symbols of each symbol block are contiguously located within the control segment.
Claim 35
Dependent Claim
42 words
The apparatus of claim 30 wherein the control segment represents a fixed number of bits, Y, which is equal to the number of control symbols within a symbol block multiplied by a y number of bits from each of these control symbols.
Claim 36
Dependent Claim
14 words
The apparatus of claim 31 wherein each control symbol represents x bits, and x>y.
Claim 37
Dependent Claim
18 words
The apparatus of claim 32 wherein duplicate control information is conveyed by x-y bits of each control symbol.
Claim 38
Dependent Claim
14 words
The apparatus of claim 30 wherein the data symbols represent a synchronous data stream.
Claim 39
Dependent Claim
20 words
The apparatus of claim 30 wherein the data symbols represent an asynchronous data stream without the start and stop bits.
Claim 40
Dependent Claim
124 words
Modem apparatus comprising: means responsive to a data signal for providing a stream of data symbols, each data symbol selected from a first signal space; means responsive to at least one control signal for providing a stream of control symbols, each control symbol selected from a second signal space; means for developing a number of symbol blocks, each symbol block comprising a number of the data symbols and a number of the control symbols; means responsive to an analog signal for providing a stream of signal points; means for adding each one of the signal points to at least some of the symbols of each symbol block to provide an stream of resultant signal points; and means for transmitting the resultant signal point stream.
Claim 41
Dependent Claim
124 words
Modem apparatus comprising: means responsive to a data signal for providing a stream of data symbols, each data symbol selected from a first signal space; means responsive to at least one control signal for providing a stream of control symbols, each control symbol selected from a second signal space; means for developing a number of symbol blocks, each symbol block comprising a number of the data symbols and a number of the control symbols; means responsive to an analog signal for providing a stream of signal points; means for adding each one of the signal points to at least some of the symbols of each symbol block to provide an stream of resultant signal points; and means for transmitting the resultant signal point stream.
Claim 42
Dependent Claim
13 words
The apparatus of claim 36 wherein the analog signal is a voice signal.
Claim 43
Dependent Claim
26 words
The apparatus of claim 36 wherein the means for developing includes a counting means for counting each dam symbol and control symbol in each symbol block.
Claim 44
Dependent Claim
15 words
The apparatus of claim 36 wherein the means for transmitting is a quadrature amplitude modulator.
Claim 45
Dependent Claim
43 words
The apparatus of claim 36 wherein each symbol block includes a data segment and a control segment, wherein the number of data symbols are contiguously located within the data segment and the number of control symbols are contiguously located within the control segment.
Claim 46
Dependent Claim
20 words
The apparatus of claim 40 wherein at least one of the control symbols represents information about a succeeding symbol block.
Claim 47
Dependent Claim
12 words
The apparatus of claim 40 wherein the control symbols represent secondary data.
Claim 48
Dependent Claim
14 words
The apparatus of claim 40 wherein the data symbols represent a synchronous data stream.
Claim 49
Dependent Claim
43 words
The apparatus of claim 40 wherein the data signal represents an asynchronous character stream, each asynchronous character having a start and a stop bit and wherein the means responsive to a data signal removes the start and stop bit from each asynchronous character.
Claim 50
Dependent Claim
70 words
A modem apparatus comprising: means for demultiplexing a stream of received signal points from a far-end modem to provide a plurality of signal point streams; means for decoding each one of the plurality of signal points streams to provide a respective plurality of symbol streams; and means for decoding each one of the received signal points as a function of the plurality of symbol streams to provide an analog signal.
Claim 51
Dependent Claim
70 words
A modem apparatus comprising: means for demultiplexing a stream of received signal points from a far-end modem to provide a plurality of signal point streams; means for decoding each one of the plurality of signal points streams to provide a respective plurality of symbol streams; and means for decoding each one of the received signal points as a function of the plurality of symbol streams to provide an analog signal.
Claim 52
Dependent Claim
13 words
The apparatus of claim 45 wherein the analog signal is a voice signal.
Claim 53
Dependent Claim
54 words
The apparatus of claim 45 wherein the means for decoding each one of the plurality of signal points streams further includes: means for providing a data signal from one of the plurality of signal point streams; and means for providing a control signal from a different one of the plurality of signal point streams.
Claim 54
Dependent Claim
31 words
The apparatus of claim 47 further including a processing means that is responsive to the control signal for adjusting a parameter of the means for decoding that provides the analog signal.
Claim 55
Dependent Claim
39 words
The apparatus of claim 47 wherein the data signal represents a sequence of asynchronous characters and the means for providing a data signal adds a start bit and a stop bit to each character in forming the data signal.
Claim 56
Dependent Claim
19 words
The apparatus of claim 47 wherein the means for providing a control signal also provides a secondary data signal.
References Cited (Backward Citations)
US4558317A
Cited
US4578537A
Cited
US4627077A
Cited
US4630287A
Cited
US4736377A
Cited
US4757495A
Cited
US4899384A
Cited
GB2210237A
Cited
US5023903A
Cited
US5099478A
Cited
US5036513A
Cited
US5144295A
Cited
US5136586A
Cited
US5105443A
Cited
US5228033A
Cited
EP0490552A2
Cited
US5436390A
Cited
US5448555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |