Patent US5533967A successfully refreshed from Google Patents.
US4584685A
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Method for improving message reception from multiple sources
Assignee: General Electric Co
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Filing: 1983-12-22
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Granted: 1986-04-22
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Expires: 2003-12-22
Abstract
Abstract A method for improving reception of a data word to be sent from an origination station to a destination station comprises generating and storing error correction functions for a message word including the data word. Error correction functions are transmitted only if the message word is invalidly received thus offering improved performance over a conventional retry scheme. Interleaving reduces susceptibility to burst noise and altering carrier frequency for retransmissions minimizes effects of noise. The method is especially useful in a system comprising a central receiver and a plurality of physically separated remote transmitters wherein electrical path quality between receiver and transmitters may independently randomly vary.
Inventors
- 👤 Jagdish T. Gajjar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:51
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/004; H04L1/0056; H04L1/0057; H03; H03M; H03M13/00; H03M13/03; H03M13/05; H03M13/13; H03M13/15; H04L1/12; H04L1/16; H04L1/18; H04L1/1812; H04L1/1819; H04L1/1867; H04L1/1874
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
153 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; generating an error correction function for the message word; storing the error correction function for the message word; transmitting the message word to said destination station; using the security check word segment of the received message word to determine whether the received data word segment of the received message word has been validly received; transmitting the error correction function for the message word to said destination station when the received message word has not been verified as valid; and correcting errors in the received message word using the error correction function received at said destination station to form a corrected message word, wherein said corrected message word comprises a corrected data word and a corrected security check word.
Claim 2
Independent Claim
153 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; generating an error correction function for the message word; storing the error correction function for the message word; transmitting the message word to said destination station; using the security check word segment of the received message word to determine whether the received data word segment of the received message word has been validly received; transmitting the error correction function for the message word to said destination station when the received message word has not been verified as valid; and correcting errors in the received message word using the error correction function received at said destination station to form a corrected message word, wherein said corrected message word comprises a corrected data word and a corrected security check word.
Claim 3
Dependent Claim
27 words
The method as in claim 1, further comprising using the corrected security check word of the corrected message word to declare the corrected data word validly received.
Claim 4
Dependent Claim
20 words
The method as in claim 2, further comprising retransmitting the message word when the corrected data word is declared invalid.
Claim 5
Dependent Claim
21 words
The method as in claim 2, further comprising retransmitting the error correction function when the corrected data word is declared invalid.
Claim 6
Dependent Claim
15 words
The method as in claim 1, wherein said error correction function comprises a Golay code.
Claim 7
Dependent Claim
15 words
The method as in claim 5, wherein said Golay code comprises an extended Golay code.
Claim 8
Dependent Claim
25 words
The method as in claim 3, wherein the step of retransmitting the message word includes using a different predetermined carrier frequency from the transmitted frequency.
Claim 9
Independent Claim
181 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; dividing said message word into a plurality of word segments; generating a respective error correction function for each of said plurality of word segments; storing the respective error correction function for each of said plurality of word segments; transmitting the message word to said destination station; using the security check word segment of the received message word to determine whether the data word segment of the received message word has been validly received; transmitting the respective error correction function for each of said plurality of word segments to said destination station when the received message word has been determined to be invalid; and correcting errors in each of said plurality of word segments using the respective error correction function received at said destination station to form a corrected message word, wherein said corrected message word comprises a corrected data word and a corrected security check word.
Claim 10
Independent Claim
181 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; dividing said message word into a plurality of word segments; generating a respective error correction function for each of said plurality of word segments; storing the respective error correction function for each of said plurality of word segments; transmitting the message word to said destination station; using the security check word segment of the received message word to determine whether the data word segment of the received message word has been validly received; transmitting the respective error correction function for each of said plurality of word segments to said destination station when the received message word has been determined to be invalid; and correcting errors in each of said plurality of word segments using the respective error correction function received at said destination station to form a corrected message word, wherein said corrected message word comprises a corrected data word and a corrected security check word.
Claim 11
Dependent Claim
27 words
The method as in claim 8, further comprising using the corrected security check word of the corrected message word to declare the corrected data word validly received.
Claim 12
Dependent Claim
20 words
The method as in claim 9, further comprising retransmitting the message word when the correctd data word is declared invalid.
Claim 13
Dependent Claim
33 words
The method as in claim 10, wherein the step of retransmitting the message word further includes interleaving information from each of said plurality of word segments, whereby susceptibility to burst noise is reduced.
Claim 14
Dependent Claim
25 words
The method as in claim 9, further comprising retransmitting each respective error correction function when the corrected message word corrected data word is declared invalid.
Claim 15
Dependent Claim
36 words
The method as in claim 12, wherein one data bit is respectively transmitted from each of said plurality of word segments before a second data bit is transmitted from any of said plurality of word segments.
Claim 16
Dependent Claim
33 words
The method as in claim 8, wherein the step of transmitting the message word further includes interleaving information from each of said plurality of word segments, whereby susceptibility to burst noise is reduced.
Claim 17
Dependent Claim
36 words
The method as in claim 14, wherein one data bit is respectively transmitted from each of said plurality of word segments before a second data bit is transmitted from any of said plurality of word segments.
Claim 18
Dependent Claim
42 words
The method as in claim 8, wherein the step of transmitting the respective error correction function for each of said plurality of word segments further includes interleaving information from each said respective error correction function, whereby susceptibility to burst noise is reduced.
Claim 19
Dependent Claim
34 words
The method as in claim 14, wherein one data bit is respectively transmitted from each respective error correction function before a second data bit is transmitted from any of said respective error correction functions.
Claim 20
Dependent Claim
15 words
The method as in claim 8, wherein said error correction function comprises a Golay code.
Claim 21
Dependent Claim
15 words
The method as in claim 18, wherein said Golay code comprises an extended Golay code.
Claim 22
Dependent Claim
25 words
The method as in claim 10, wherein the step of retransmitting the message word includes using a different predetermined carrier frequency from the transmitted frequency.
Claim 23
Independent Claim
210 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; dividing said message word into a first plurality of word segments; interleaving said first plurality of word segments to form a modified message word; dividing said modified message word into a second plurality of word segments; generating a respective error correction function for each of said second plurality of word segments; storing the respective error correction function for each of said second plurality of word segments; transmitting the message word to said destination station; using the security check word segment of said received message word to determine whether the data word segment of said received messagre word has been validly received; transmitting the respective error correction function for each of said second plurality of word segments to said destination station when the received message word has not been verified as valid; and correcting errors in each of said first plurality of segments using the respective error corection function received at said destination station to form a corrected message word, wherein said correctd message word comprises a corrected data word and a corrected security check word.
Claim 24
Independent Claim
210 words
A method for improving reception of a data word to be sent from an origination station to a destination station, comprising: concatenating the data word and a security check word to form a message word; dividing said message word into a first plurality of word segments; interleaving said first plurality of word segments to form a modified message word; dividing said modified message word into a second plurality of word segments; generating a respective error correction function for each of said second plurality of word segments; storing the respective error correction function for each of said second plurality of word segments; transmitting the message word to said destination station; using the security check word segment of said received message word to determine whether the data word segment of said received messagre word has been validly received; transmitting the respective error correction function for each of said second plurality of word segments to said destination station when the received message word has not been verified as valid; and correcting errors in each of said first plurality of segments using the respective error corection function received at said destination station to form a corrected message word, wherein said correctd message word comprises a corrected data word and a corrected security check word.
Claim 25
Dependent Claim
27 words
The method as in claim 21, further comprising using the corrected security check word of the corrected message word to declare the corrected data word validly received.
Claim 26
Dependent Claim
20 words
The method as in claim 22, further comprising retransmitting the message word when the corrected data word is declared invalid.
Claim 27
Dependent Claim
41 words
The method as in claim 21, wherein the step of interleaving said first plurality of word segments further includes sequentially arranging a single bit from respective corresponding bit positions of each respective word segment of said first plurality of word segments.
Claim 28
Dependent Claim
43 words
The method as in claim 21, wherein the step of transmitting the respective error correction function for each of said second plurality of word segments further includes interleaving information from each said respective error correction function, whereby susceptibility to burst noise is reduced.
Claim 29
Dependent Claim
34 words
The method as in claim 25, wherein one data bit is respectively transmitted from each respective error correction function before a second data bit is transmitted from any of said respective error correction functions.
Claim 30
Dependent Claim
16 words
The method as in claim 21, wherein said respective error correction function comprises a Golay code.
Claim 31
Dependent Claim
15 words
The method as in claim 27, wherein said Golay code comprises an extended Golay code.
Claim 32
Dependent Claim
25 words
The method as in claim 23, wherein the step of retransmitting the message word includes using a different predetermined carrier frequency from the transmitted frequency.
References Cited (Backward Citations)
US3868633A
Cited
US4238852A
Cited
US4398292A
Cited
US4400810A
Cited
US4344171A
Cited
US4471485A
Cited
US4414667A
Cited
US4479215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |