JPS56149130A - Code error noise suppression system by differential signal processing - Google Patents
Code error noise suppression system by differential signal processingInfo
- Publication number
- JPS56149130A JPS56149130A JP5300180A JP5300180A JPS56149130A JP S56149130 A JPS56149130 A JP S56149130A JP 5300180 A JP5300180 A JP 5300180A JP 5300180 A JP5300180 A JP 5300180A JP S56149130 A JPS56149130 A JP S56149130A
- Authority
- JP
- Japan
- Prior art keywords
- code error
- received signal
- error noise
- differential signal
- signal processing
- 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
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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Noise Elimination (AREA)
Abstract
PURPOSE:To suppress noise due to a code error nearly completely by detecting the generation position of a code error noise in a received signal on the basis of the magnitude and the property of polarity inversion of a differential signal obtained from the received signal and by correcting it by interpolation. CONSTITUTION:Reader 1 reads seven starting samples r(1), r(2)...r(7) from a received signal, and reader 2 operates for the 2nd processing and later and reads one sample r(7) from the received signal. Then, calculator 3 calculates differential signals d(1)...d(6) from d(1)=r(2)-r(1), etc., on the basis of received signals r(1)...r(7) and sends the calculation result to r(1) output part 14 when d(3)d(4) is not less than zero or to calculator 5 when negative. Through calculators 5 and 10, discriminators 6, 7, 11, and 12, and setters 8 and 9, the generation position of a code error noise in the received signal is detected and the signal is corrected 13 by interpolation and outputted 14. Thus, noises due to code errors are suppressed nearly completely.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5300180A JPS56149130A (en) | 1980-04-18 | 1980-04-18 | Code error noise suppression system by differential signal processing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5300180A JPS56149130A (en) | 1980-04-18 | 1980-04-18 | Code error noise suppression system by differential signal processing |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56149130A true JPS56149130A (en) | 1981-11-18 |
Family
ID=12930678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5300180A Pending JPS56149130A (en) | 1980-04-18 | 1980-04-18 | Code error noise suppression system by differential signal processing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149130A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02183632A (en) * | 1989-01-10 | 1990-07-18 | Mitsubishi Electric Corp | Muting circuit |
FR2658677A1 (en) * | 1990-02-20 | 1991-08-23 | Distrubution Control Systems I | METHOD FOR IDENTIFYING BINARY FIGURES IN A COMMUNICATION SYSTEM USING THE CURRENT WAVEFORM OF AN ELECTRICAL DISTRIBUTION NETWORK AS A CARRIER |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51113523A (en) * | 1975-03-31 | 1976-10-06 | Tokyo Electric Power Co Inc:The | False sampling data detection and correction system |
JPS51113522A (en) * | 1975-03-31 | 1976-10-06 | Tokyo Electric Power Co Inc:The | False ac-wave-form data detecting system |
-
1980
- 1980-04-18 JP JP5300180A patent/JPS56149130A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51113523A (en) * | 1975-03-31 | 1976-10-06 | Tokyo Electric Power Co Inc:The | False sampling data detection and correction system |
JPS51113522A (en) * | 1975-03-31 | 1976-10-06 | Tokyo Electric Power Co Inc:The | False ac-wave-form data detecting system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02183632A (en) * | 1989-01-10 | 1990-07-18 | Mitsubishi Electric Corp | Muting circuit |
JP2612061B2 (en) * | 1989-01-10 | 1997-05-21 | 三菱電機株式会社 | Muting circuit |
FR2658677A1 (en) * | 1990-02-20 | 1991-08-23 | Distrubution Control Systems I | METHOD FOR IDENTIFYING BINARY FIGURES IN A COMMUNICATION SYSTEM USING THE CURRENT WAVEFORM OF AN ELECTRICAL DISTRIBUTION NETWORK AS A CARRIER |
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