JPS556909A - Error correction system - Google Patents
Error correction systemInfo
- Publication number
- JPS556909A JPS556909A JP7860878A JP7860878A JPS556909A JP S556909 A JPS556909 A JP S556909A JP 7860878 A JP7860878 A JP 7860878A JP 7860878 A JP7860878 A JP 7860878A JP S556909 A JPS556909 A JP S556909A
- Authority
- JP
- Japan
- Prior art keywords
- error correction
- code
- line
- circuit
- digital
- 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)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
PURPOSE: To realize an error correction system which features a reduced number of the redundancy characters for error correction as well as a quick and accurate transmission of the digital code.
CONSTITUTION: The digital information supplied from line 1 undergoes the interface via code process circuit (Di)A-1 for the digital code to have the code process through which, for example, the input one word is changed to two words, and is then supplied to transmitting error correction device A-2(Ept) via line 2. The input given from line 1 and the output of line 2 have different formats to each other since they were processed at circuit A-1. Device A-2 applies the parity code for correction to the input code to then send it to the transmitter comprising transmitter T and the antenna as well as to antenna A-3 via line 3. Then A-3 transmits the digital signals encoded at A-2 via the radio circuit 4. For circuit 4, the transmission signals are received at station B from station A. And B-3 consists of the antenna and the receiver, and the output obtained by demodulating the received signals is supplied to receiving error correction device B-2(EPR) via line 5. Thus the error correction is carried out with every character via the information and the parity code.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860878A JPS556909A (en) | 1978-06-30 | 1978-06-30 | Error correction system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860878A JPS556909A (en) | 1978-06-30 | 1978-06-30 | Error correction system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS556909A true JPS556909A (en) | 1980-01-18 |
Family
ID=13666588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7860878A Pending JPS556909A (en) | 1978-06-30 | 1978-06-30 | Error correction system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS556909A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49131706A (en) * | 1973-04-24 | 1974-12-17 | ||
JPS52153303A (en) * | 1976-06-15 | 1977-12-20 | Mitsubishi Electric Corp | Data reception circuit |
-
1978
- 1978-06-30 JP JP7860878A patent/JPS556909A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49131706A (en) * | 1973-04-24 | 1974-12-17 | ||
JPS52153303A (en) * | 1976-06-15 | 1977-12-20 | Mitsubishi Electric Corp | Data reception circuit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57136833A (en) | Time-division multiplex data transmitting method | |
HUP9701215A2 (en) | Very small aperture terminal satellite communications system | |
JPS556909A (en) | Error correction system | |
JPS5573157A (en) | Data communication system | |
JPS5621460A (en) | Control signal transmission system in key telephone system unit | |
JPS5752261A (en) | Character processor | |
JPS5690649A (en) | Synchronous converting communication system | |
DK309185D0 (en) | DIGITAL SIGNAL TRANSMISSION SYSTEM, NAME FOR SATELLITE RADIO | |
RU2079855C1 (en) | System to transmit and receive discrete information over radio channels of pulse-phase radio navigation system | |
JPS5373006A (en) | Trasmission control process conversion device | |
JPS57136845A (en) | Coding and transfer system of information data | |
JPS5210625A (en) | Conversation type data communication terminal device | |
JPS57138237A (en) | Transmission system for error correction parallel data | |
JPS5399710A (en) | Signal transmission circuit | |
JPS554107A (en) | Signal transmission system | |
SU625311A1 (en) | Binary information transmitter-receiver | |
JPS56122251A (en) | Synchronous control system | |
JPS5599867A (en) | Radio teletype communication system | |
JPS5476033A (en) | Interruption method for high-level data transmission control system | |
Yang et al. | Bit-selective Forward Error Correction for Digital Mobile Communications | |
JPH0193220A (en) | Videotex transmission system | |
JPS5767349A (en) | Data transmission device | |
JPS5228210A (en) | Loop data transmission system | |
Fröhlich et al. | Data transmission via European communications satellite | |
JPS55130266A (en) | Control system for attendant board |