JPS5793755A - Signal discriminating system - Google Patents

Signal discriminating system

Info

Publication number
JPS5793755A
JPS5793755A JP17121480A JP17121480A JPS5793755A JP S5793755 A JPS5793755 A JP S5793755A JP 17121480 A JP17121480 A JP 17121480A JP 17121480 A JP17121480 A JP 17121480A JP S5793755 A JPS5793755 A JP S5793755A
Authority
JP
Japan
Prior art keywords
signal
level
clock
discriminated
gate
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
JP17121480A
Other languages
Japanese (ja)
Inventor
Shinji Sato
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP17121480A priority Critical patent/JPS5793755A/en
Publication of JPS5793755A publication Critical patent/JPS5793755A/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

Abstract

PURPOSE:To increase the reliability of signal detection of 1-bit, by making sampling-measurement of coded signal with a clock signal, and discriminating the signal as H or L if the period of H or L level is 60% or more. CONSTITUTION:A coded signal A and a sampling clock B are inputted to an AND gate 1. A signal A is a signal having H level, tH in time width and L level tL in time width, and the period of the sampling clock B is very much smaller than the time widths tH, tL. An output signal C of an AND gate 1 is counted at a control circuit 2 and compared with a reference signal D. The reference signal D is fc(frequency of clock B)XtHX0.6 or fcXtLX0.6, and when the number of pulses counted at the control circuit 2 is more than the reference signal D, it is discriminated as H level and discriminated as L level when less.
JP17121480A 1980-12-03 1980-12-03 Signal discriminating system Pending JPS5793755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17121480A JPS5793755A (en) 1980-12-03 1980-12-03 Signal discriminating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17121480A JPS5793755A (en) 1980-12-03 1980-12-03 Signal discriminating system

Publications (1)

Publication Number Publication Date
JPS5793755A true JPS5793755A (en) 1982-06-10

Family

ID=15919145

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17121480A Pending JPS5793755A (en) 1980-12-03 1980-12-03 Signal discriminating system

Country Status (1)

Country Link
JP (1) JPS5793755A (en)

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