JPS6444628A - Error correction system - Google Patents
Error correction systemInfo
- Publication number
- JPS6444628A JPS6444628A JP20209387A JP20209387A JPS6444628A JP S6444628 A JPS6444628 A JP S6444628A JP 20209387 A JP20209387 A JP 20209387A JP 20209387 A JP20209387 A JP 20209387A JP S6444628 A JPS6444628 A JP S6444628A
- Authority
- JP
- Japan
- Prior art keywords
- information
- error
- transmission
- bit
- significant bit
- 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.)
- Pending
Links
Landscapes
- Error Detection And Correction (AREA)
Abstract
PURPOSE:To reduce the redundancy of a transmission signal and to improve the transmission efficiency by using the characteristic of transmission error generated at the time of transmission with analog amplitude information and only applying an error correction code to a specific bit (the least significant bit) to correct the error of the whole of transmission information. CONSTITUTION:The least significant bit of n-bit message digital information is encoded to the error correction code by an error correction code coding means 11, and information is converted to analog amplitude information by an analog information converting means 12 and is transmitted. The reception signal level (analog amplitude information) is converted to at least (n+1)-bit digital information by a digital information converting means 13, and the least significant bit of high-order (n) bits is subjected to error detection by an error detecting means 14. The least significant bit of (n+1) bits is used as error information, and an error correction code decoding means 15 is subjected high- order n-bit digital information to + or -1 operation processing based on error information at the time of detecting error at the least significant bit of high-order (n) bits, thereby correcting error of transmission information.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20209387A JPS6444628A (en) | 1987-08-13 | 1987-08-13 | Error correction system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20209387A JPS6444628A (en) | 1987-08-13 | 1987-08-13 | Error correction system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444628A true JPS6444628A (en) | 1989-02-17 |
Family
ID=16451851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20209387A Pending JPS6444628A (en) | 1987-08-13 | 1987-08-13 | Error correction system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444628A (en) |
-
1987
- 1987-08-13 JP JP20209387A patent/JPS6444628A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0327322A3 (en) | Decoding apparatus | |
AU575280B2 (en) | Method of transmitting information, encoding and decoding device | |
AU2052392A (en) | Method and apparatus for communicating digital data using trellis coded qam | |
AU3792385A (en) | Method of encoding n-bit information words into m-bit code words, apparatus for carrying out said method, method of decoding m-bit code words into n-bit information words, and apparatus for carrying out said method | |
CA2090513A1 (en) | Method and apparatus for providing antenna diversity | |
TW265502B (en) | Rotationally invariant trellis coding incorporating transparent binary convolutional codes | |
CA2013158A1 (en) | Error correction method and apparatus | |
JPS57176866A (en) | Encoder of binary signal | |
ES8302939A1 (en) | Soft decision convolutional code transmission system. | |
ES2126877T3 (en) | METHOD OF CONVERSION OF A SERIES OF INFORMATION WORDS IN A MODULATED SIGNAL, METHOD OF PRODUCTION OF A RECORDING SUPPORT, ENCODING DEVICE, DECODING DEVICE, RECORDING DEVICE, AS WELL AS A RECORDING SUPPORT. | |
JPS57157655A (en) | Transmitting method of digital television signal and error correcting encoder | |
EP0147623A3 (en) | Error correcting method and apparatus | |
CA2102789A1 (en) | Error detection system | |
CA2088062A1 (en) | Coded qam system | |
EP0402058A3 (en) | Predictive decoding device correcting code errors | |
EP0880284A3 (en) | Error correction in data encoding | |
EP0220781A2 (en) | Decoding binary code words | |
AU1092892A (en) | Improved data and forward error control coding techniques for digital signals | |
JPS6444628A (en) | Error correction system | |
JPS5632851A (en) | Coding and decoding system for binary information | |
EP0138078A3 (en) | Decoder of cyclic perfect binary code | |
EP0166504A3 (en) | Transmitting a digital signal and an additional signal | |
KR950003662B1 (en) | Error correction system | |
SU677123A1 (en) | Device for majority decoding of cyclic codes at triple repetition of combination | |
JPS55131858A (en) | Error detecting correction system |