US5022053A
Expired / Lapsed
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Data communications with alternation of signaling constellations
Assignee: Nokia Bell Labs
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Filing: 1989-04-10
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Granted: 1991-06-04
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Expires: 2009-04-10
Abstract
Abstract Primary and secondary data are communicated from a transmitter to a receiver in a communication system. The value of an individual primary data word is communicated by transmitting an individual one of first plurality of channel symbols associated with that value while the value of a combined data word comprising an individual primary data word and an individual secondary data word is communicated by transmitting an individual one of second plurality of channel symbols associated with that value. In the receiver, both the primary and secondary data word values are recovered from the channel symbols thus transmitted. The approach of alternating two sets of channel symbols for transmission depending on the data word size can further apply to data communications at various fallback speeds.
Inventors
- 👤 Hong Y. Chung
- 👤 Michael D. Rauchwerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:02
CPC Classifications
H; H04; H04L; H04L27/00; H04L27/32; H04L27/34; H04L27/345; H04L27/3461; H04L27/3472
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
63 words
Apparatus comprising means for receiving a stream of data bits, means responsive to one or more of said data bits for applying to a communication channel an individual one channel symbol of a selected one of a predetermined plurality of sets of channel symbols, and control means for selecting individual ones of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 2
Dependent Claim
63 words
Apparatus comprising means for receiving a stream of data bits, means responsive to one or more of said data bits for applying to a communication channel an individual one channel symbol of a selected one of a predetermined plurality of sets of channel symbols, and control means for selecting individual ones of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 3
Dependent Claim
30 words
The invention of claim 1 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 4
Dependent Claim
27 words
The invention of claim 1 wherein the applying means includes means for encoding said one or more of said data bits in accordance with a trellis code.
Claim 5
Dependent Claim
88 words
Apparatus comprising means for receiving a stream of data bits, means operative for selecting individual sets of a predetermined plurality of sets of channel symbols, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of one or more of said data bits, and control means for operating the selecting means to select said individual sets of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 6
Dependent Claim
88 words
Apparatus comprising means for receiving a stream of data bits, means operative for selecting individual sets of a predetermined plurality of sets of channel symbols, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of one or more of said data bits, and control means for operating the selecting means to select said individual sets of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 7
Dependent Claim
30 words
The invention of claim 4 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 8
Dependent Claim
109 words
Apparatus comprising means for receiving a stream of data bits, means for encoding one or more of said data bits in accordance with a trellis code, means operative for selecting individual sets of a predetermined plurality of sets of channel symbols, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of the encoded version of said one or more of said data bits, and control means for operating the selecting means to select said individual sets of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 9
Dependent Claim
109 words
Apparatus comprising means for receiving a stream of data bits, means for encoding one or more of said data bits in accordance with a trellis code, means operative for selecting individual sets of a predetermined plurality of sets of channel symbols, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of the encoded version of said one or more of said data bits, and control means for operating the selecting means to select said individual sets of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 10
Dependent Claim
30 words
The invention of claim 6 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 11
Dependent Claim
93 words
Apparatus comprising means operative for receiving data bits at a plurality of bit rates, means responsive to at least one of said data bits for applying to a communication channel an individual one channel symbol of an individual one set of a predetermined plurality of sets of channel symbols, said individual one set being associated with the bit rate at which said data bits are currently being received, and control means for operating the receiving means to receive said data bits at individual ones of said plurality of bit rates in repetitive alternation.
Claim 12
Dependent Claim
93 words
Apparatus comprising means operative for receiving data bits at a plurality of bit rates, means responsive to at least one of said data bits for applying to a communication channel an individual one channel symbol of an individual one set of a predetermined plurality of sets of channel symbols, said individual one set being associated with the bit rate at which said data bits are currently being received, and control means for operating the receiving means to receive said data bits at individual ones of said plurality of bit rates in repetitive alternation.
Claim 13
Dependent Claim
30 words
The invention of claim 8 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 14
Dependent Claim
27 words
The invention of claim 8 wherein the applying means includes means for encoding said at least one of said data bits in accordance with a trellis code.
Claim 15
Dependent Claim
91 words
Apparatus comprising means for receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, means for defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble being currently received, and means for applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 16
Dependent Claim
91 words
Apparatus comprising means for receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, means for defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble being currently received, and means for applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 17
Dependent Claim
30 words
The invention of claim 11 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 18
Dependent Claim
111 words
Apparatus comprising means for receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, means for defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble which is comprised of data bits and which is currently received, means for encoding said data bits in accordance with a trellis code, and means for applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 19
Dependent Claim
111 words
Apparatus comprising means for receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, means for defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble which is comprised of data bits and which is currently received, means for encoding said data bits in accordance with a trellis code, and means for applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 20
Dependent Claim
30 words
The invention of claim 13 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 21
Independent Claim
61 words
A method comprising the steps of receiving a stream of data bits, applying, in response to one or more of said data bits, to a communication channel an individual one channel symbol of a selected one of a predetermined plurality of sets of channel symbols, and selecting individual ones of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 22
Independent Claim
61 words
A method comprising the steps of receiving a stream of data bits, applying, in response to one or more of said data bits, to a communication channel an individual one channel symbol of a selected one of a predetermined plurality of sets of channel symbols, and selecting individual ones of said predetermined plurality of sets of channel symbols in repetitive alternation.
Claim 23
Dependent Claim
30 words
The invention of claim 15 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 24
Dependent Claim
28 words
The invention of claim 15 wherein said method further comprises the step of encoding said one or more of said data bits in accordance with a trellis code.
Claim 25
Independent Claim
66 words
A method comprising the steps of receiving a stream of data bits, and selecting individual sets of a predetermined plurality of sets of channel symbols in repetitive alternation, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of one or more of said data bits.
Claim 26
Independent Claim
66 words
A method comprising the steps of receiving a stream of data bits, and selecting individual sets of a predetermined plurality of sets of channel symbols in repetitive alternation, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of one or more of said data bits.
Claim 27
Dependent Claim
30 words
The invention of claim 18 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 28
Independent Claim
85 words
A method comprising the steps of receiving a stream of data bits, encoding one or more of said data bits in accordance with a trellis code, and selecting individual sets of a predetermined plurality of sets of channel symbols in repetitive alternation, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of the encoded version of said one or more of said data bits.
Claim 29
Independent Claim
85 words
A method comprising the steps of receiving a stream of data bits, encoding one or more of said data bits in accordance with a trellis code, and selecting individual sets of a predetermined plurality of sets of channel symbols in repetitive alternation, an individual one channel symbol of the selected individual one set of channel symbols being applied to a communication channel, said individual one channel symbol being associated with the value of the encoded version of said one or more of said data bits.
Claim 30
Dependent Claim
30 words
The invention of claim 20 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 31
Independent Claim
72 words
A method comprising the steps of admitting data bits at a plurality of bit rates in repetitive alternation, and applying, in response to at least one of said data bits, to a communication channel an individual one channel symbol of an individual one set of a predetermined plurality of sets of channel symbols, said individual one set being associated with the bit rate at which the data bits are currently being admitted.
Claim 32
Independent Claim
72 words
A method comprising the steps of admitting data bits at a plurality of bit rates in repetitive alternation, and applying, in response to at least one of said data bits, to a communication channel an individual one channel symbol of an individual one set of a predetermined plurality of sets of channel symbols, said individual one set being associated with the bit rate at which the data bits are currently being admitted.
Claim 33
Dependent Claim
30 words
The invention of claim 22 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 34
Dependent Claim
28 words
The invention of claim 22 wherein said method further comprises the step of encoding said at least one of said data bits in accordance with a trellis code.
Claim 35
Independent Claim
89 words
A method comprising the steps of receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble being currently received, and applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 36
Independent Claim
89 words
A method comprising the steps of receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble being currently received, and applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 37
Dependent Claim
30 words
The invention of claim 25 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
Claim 38
Independent Claim
107 words
A method comprising the steps of receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble which is comprised of data bits and which is currently recieved, encoding said data bits in accordance with a trellis code, and applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 39
Independent Claim
107 words
A method comprising the steps of receiving ensembles of bits in repetitive alternation, said ensembles having at least first and second sizes, defining an individual one set of a predetermined plurality of sets of channel symbols being associated with a particular one of said at least first and second sizes of the ensemble which is comprised of data bits and which is currently recieved, encoding said data bits in accordance with a trellis code, and applying to a communication channel an individual one channel symbol of said individual one set of channel symbols, said individual one channel symbol being associated with the value of the received ensemble.
Claim 40
Dependent Claim
30 words
The invention of claim 27 wherein one set of said predetermined plurality of sets of channel symbols comprises every different channel symbol of another one or more of said sets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |