GB1389551A – Multiplex digital telecommunications apparatus having error- correcting facilities
– Google Patents
GB1389551A – Multiplex digital telecommunications apparatus having error- correcting facilities
– Google Patents
Multiplex digital telecommunications apparatus having error- correcting facilities
Info
Publication number
GB1389551A
GB1389551A
GB2270572A
GB2270572A
GB1389551A
GB 1389551 A
GB1389551 A
GB 1389551A
GB 2270572 A
GB2270572 A
GB 2270572A
GB 2270572 A
GB2270572 A
GB 2270572A
GB 1389551 A
GB1389551 A
GB 1389551A
Authority
GB
United Kingdom
Prior art keywords
digits
error
circuits
store
block
Prior art date
1972-05-15
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2270572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1972-05-15
Filing date
1972-05-15
Publication date
1975-04-03
1972-05-15
Application filed by UK Secretary of State for Defence
filed
Critical
UK Secretary of State for Defence
1972-05-15
Priority to GB2270572A
priority
Critical
patent/GB1389551A/en
1973-05-11
Priority to US359375A
priority
patent/US3896416A/en
1973-05-14
Priority to JP48052689A
priority
patent/JPS4956506A/ja
1973-05-14
Priority to FR7317405A
priority
patent/FR2191373B1/fr
1973-05-15
Priority to NL7306741A
priority
patent/NL7306741A/xx
1973-05-15
Priority to DE2324538A
priority
patent/DE2324538A1/en
1975-04-03
Publication of GB1389551A
publication
Critical
patent/GB1389551A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
H04L1/0056—Systems characterized by the type of code used
H04L1/0057—Block codes
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
H04L1/0041—Arrangements at the transmitter end
H—ELECTRICITY
H04—ELECTRIC COMMUNICATION TECHNIQUE
H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
H04L1/00—Arrangements for detecting or preventing errors in the information received
H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
H04L1/0045—Arrangements at the receiver end
Abstract
1389551 Data transmission; error correction DEFENCE SECRETARY OF STATE FOR 6 July 1973 [15 May 1972] 22705/72 Heading H4P Multiplex digital telecommunications apparatus comprises facilities for encoding and decoding digital signals according to any selected one of a set of predetermined block codes having different rates and different errorcorrecting capabilities. The block codes are of the form (nkt) where n is the total number of digits in a block, k is the number of data digits and t is the number of errors corrected. Examples are given of (11, 7, 1); (11, 4, 2); and 11, 1, 5) codes. The encoder Fig. 1 (not shown) includes a buffer store (1) arranged to receive binary data in blocks of k digits and to apply the k digits of each block to a set of r parity check encoder circuits (3). Another store (5) receives the outputs from the first store and also those from the encoder circuits. The decoder, Fig. 2, includes: a buffer store 10, for providing on separate lines simultaneously, representations of digital signals belonging to received blocks of signals; a set of syndrome-element deriving circuits 13 comprising modulo-two adders arranged for simultaneously deriving all the syndrome elements; a set of error-detecting circuits 14 for simultaneously deriving error indications of any information digit and comprising coincidence gates; and correcting gates 15 comprising modulo-two adders for providing corrected representations of the data signals.
GB2270572A
1972-05-15
1972-05-15
Multiplex digital telecommunications apparatus having error- correcting facilities
Expired
GB1389551A
(en)
Priority Applications (6)
Application Number
Priority Date
Filing Date
Title
GB2270572A
GB1389551A
(en)
1972-05-15
1972-05-15
Multiplex digital telecommunications apparatus having error- correcting facilities
US359375A
US3896416A
(en)
1972-05-15
1973-05-11
Digital telecommunications apparatus having error-correcting facilities
JP48052689A
JPS4956506A
(en)
1972-05-15
1973-05-14
FR7317405A
FR2191373B1
(en)
1972-05-15
1973-05-14
NL7306741A
NL7306741A
(en)
1972-05-15
1973-05-15
DE2324538A
DE2324538A1
(en)
1972-05-15
1973-05-15
DIGITAL MESSAGE TRANSFER ARRANGEMENT
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB2270572A
GB1389551A
(en)
1972-05-15
1972-05-15
Multiplex digital telecommunications apparatus having error- correcting facilities
Publications (1)
Publication Number
Publication Date
GB1389551A
true
GB1389551A
(en)
1975-04-03
Family
ID=10183772
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2270572A
Expired
GB1389551A
(en)
1972-05-15
1972-05-15
Multiplex digital telecommunications apparatus having error- correcting facilities
Country Status (6)
Country
Link
US
(1)
US3896416A
(en)
JP
(1)
JPS4956506A
(en)
DE
(1)
DE2324538A1
(en)
FR
(1)
FR2191373B1
(en)
GB
(1)
GB1389551A
(en)
NL
(1)
NL7306741A
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2423935A1
(en)
*
1978-04-21
1979-11-16
Sony Corp
DIGITAL SIGNAL TRANSMISSION SYSTEM
GB2131253A
(en)
*
1982-11-24
1984-06-13
Motorola Ltd
Error-correcting decoder
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4047151A
(en)
*
1974-12-24
1977-09-06
Rydbeck Nils R C
Adaptive error correcting transmission system
US4117458A
(en)
*
1977-03-04
1978-09-26
Grumman Aerospace Corporation
High speed double error correction plus triple error detection system
GB2113050A
(en)
*
1981-12-02
1983-07-27
Philips Electronic Associated
Signal transmission system
US4667326A
(en)
*
1984-12-20
1987-05-19
Advanced Micro Devices, Inc.
Method and apparatus for error detection and correction in systems comprising floppy and/or hard disk drives
US4961192A
(en)
*
1988-07-29
1990-10-02
International Business Machines Corporation
Data error detection and correction
JP2881773B2
(en)
*
1988-07-30
1999-04-12
ソニー株式会社
Error correction device
JPH02125532A
(en)
*
1988-11-04
1990-05-14
Sony Corp
Decoder for bch code
JP2824474B2
(en)
*
1992-02-17
1998-11-11
三菱電機株式会社
Error correction system and decoder using this error correction system
US6038679A
(en)
*
1994-11-30
2000-03-14
International Business Machines Corporation
Adaptive data recovery method and apparatus
US5907671A
(en)
*
1996-09-23
1999-05-25
International Business Machines Corporation
Fault tolerant system based on voting
KR100669152B1
(en)
*
2004-11-25
2007-01-15
한국전자통신연구원
Apparatus and method for coding of low density parity check code
US7730378B2
(en)
*
2006-06-29
2010-06-01
Nec Laboratories America, Inc.
Low-complexity high-performance low-rate communications codes
Family Cites Families (11)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3078443A
(en)
*
1959-01-22
1963-02-19
Alan C Rose
Compound error correction system
US3273119A
(en)
*
1961-08-21
1966-09-13
Bell Telephone Labor Inc
Digital error correcting systems
US3372376A
(en)
*
1964-10-05
1968-03-05
Bell Telephone Labor Inc
Error control apparatus
US3465287A
(en)
*
1965-05-28
1969-09-02
Ibm
Burst error detector
FR1495506A
(en)
*
1965-07-02
1967-12-20
US3478313A
(en)
*
1966-01-20
1969-11-11
Rca Corp
System for automatic correction of burst-errors
US3496549A
(en)
*
1966-04-20
1970-02-17
Bell Telephone Labor Inc
Channel monitor for error control
US3562709A
(en)
*
1968-09-12
1971-02-09
Rca Corp
Correction of block errors in transmission of data
US3582878A
(en)
*
1969-01-08
1971-06-01
Ibm
Multiple random error correcting system
US3668631A
(en)
*
1969-02-13
1972-06-06
Ibm
Error detection and correction system with statistically optimized data recovery
US3657700A
(en)
*
1970-07-13
1972-04-18
American Computer Commun
Forward error correcting system
1972
1972-05-15
GB
GB2270572A
patent/GB1389551A/en
not_active
Expired
1973
1973-05-11
US
US359375A
patent/US3896416A/en
not_active
Expired – Lifetime
1973-05-14
JP
JP48052689A
patent/JPS4956506A/ja
active
Pending
1973-05-14
FR
FR7317405A
patent/FR2191373B1/fr
not_active
Expired
1973-05-15
DE
DE2324538A
patent/DE2324538A1/en
active
Pending
1973-05-15
NL
NL7306741A
patent/NL7306741A/xx
unknown
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2423935A1
(en)
*
1978-04-21
1979-11-16
Sony Corp
DIGITAL SIGNAL TRANSMISSION SYSTEM
GB2131253A
(en)
*
1982-11-24
1984-06-13
Motorola Ltd
Error-correcting decoder
Also Published As
Publication number
Publication date
US3896416A
(en)
1975-07-22
FR2191373B1
(en)
1977-02-11
DE2324538A1
(en)
1974-01-03
JPS4956506A
(en)
1974-06-01
NL7306741A
(en)
1973-11-19
FR2191373A1
(en)
1974-02-01
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Legal Events
Date
Code
Title
Description
1975-08-13
PS
Patent sealed [section 19, patents act 1949]
1981-02-25
PCNP
Patent ceased through non-payment of renewal fee
