JPS56149130A - Code error noise suppression system by differential signal processing - Google Patents

Code error noise suppression system by differential signal processing

Info

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
Application number
JP5300180A
Other languages
Japanese (ja)
Inventor
Kiyosumi Yoshitani
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.)
RADIO RES LAB
YUSEISHO DENPA KENKYUSHO
Original Assignee
RADIO RES LAB
YUSEISHO DENPA KENKYUSHO
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.)
Filing date
Publication date
Application filed by RADIO RES LAB, YUSEISHO DENPA KENKYUSHO filed Critical RADIO RES LAB
Priority to JP5300180A priority Critical patent/JPS56149130A/en
Publication of JPS56149130A publication Critical patent/JPS56149130A/en
Pending legal-status Critical Current

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.
JP5300180A 1980-04-18 1980-04-18 Code error noise suppression system by differential signal processing Pending JPS56149130A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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