GB973967A - Improvements relating to telegraph systems - Google Patents
Improvements relating to telegraph systemsInfo
- Publication number
- GB973967A GB973967A GB4315360A GB4315360A GB973967A GB 973967 A GB973967 A GB 973967A GB 4315360 A GB4315360 A GB 4315360A GB 4315360 A GB4315360 A GB 4315360A GB 973967 A GB973967 A GB 973967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- check signals
- block
- elements
- check
- signal
- Prior art date
- 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
Links
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
- H04L1/0061—Error detection codes
- H04L1/0063—Single parity check
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
973,967. Telegraphy. STANDARD TELEPHONES & CABLES Ltd. Dec. 8, 1961 [Dec. 15, 1960], No. 43153/60. Heading H4P. A telegraph system includes at the transmitter, means for deriving a plurality of check signals from a block of signal elements, each check signal comprising a number of elements which are individually derived from different groups of signal elements in the block, the different check signals being derived in accordance with different mathematical laws, and at the receiver, means is provided for deriving corresponding check signals from the received block of signal elements and for comparing them with the transmitted check signals in order to detect errors. Specification 636,700 is referred to.
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4315360A GB973967A (en) | 1960-12-15 | 1960-12-15 | Improvements relating to telegraph systems |
DEST17442A DE1187665B (en) | 1960-12-15 | 1961-02-08 | Circuit arrangement for determining test points in a system for error-free transmission of binary coded data |
US153479A US3144634A (en) | 1960-12-15 | 1961-11-20 | Telegraph systems |
CH1431961A CH393413A (en) | 1960-12-15 | 1961-12-11 | Electric telegraph system |
NL272560A NL272560A (en) | 1960-12-15 | 1961-12-15 | |
BE611564A BE611564A (en) | 1960-12-15 | 1961-12-15 | Improvements to data operating systems |
FR882063A FR1308217A (en) | 1960-12-15 | 1961-12-15 | Improvements to data operating systems |
DEI21027A DE1146912B (en) | 1960-12-15 | 1961-12-15 | Method for error detection of telegraphic messages transmitted in blocks |
GB4104/62A GB945916A (en) | 1960-12-15 | 1962-02-02 | Data-transmission error-detecting arrangement |
FR887106A FR81093E (en) | 1960-12-15 | 1962-02-06 | Improvements to data operating systems |
NL274576A NL274576A (en) | 1960-12-15 | 1962-02-08 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4315360A GB973967A (en) | 1960-12-15 | 1960-12-15 | Improvements relating to telegraph systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB973967A true GB973967A (en) | 1964-11-04 |
Family
ID=10427544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4315360A Expired GB973967A (en) | 1960-12-15 | 1960-12-15 | Improvements relating to telegraph systems |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE611564A (en) |
GB (1) | GB973967A (en) |
-
1960
- 1960-12-15 GB GB4315360A patent/GB973967A/en not_active Expired
-
1961
- 1961-12-15 BE BE611564A patent/BE611564A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE611564A (en) | 1962-06-15 |
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