JPS57189315A - Signal detecting circuit - Google Patents

Signal detecting circuit

Info

Publication number
JPS57189315A
JPS57189315A JP56075233A JP7523381A JPS57189315A JP S57189315 A JPS57189315 A JP S57189315A JP 56075233 A JP56075233 A JP 56075233A JP 7523381 A JP7523381 A JP 7523381A JP S57189315 A JPS57189315 A JP S57189315A
Authority
JP
Japan
Prior art keywords
output
signal
circuit
logical circuit
shift register
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.)
Granted
Application number
JP56075233A
Other languages
Japanese (ja)
Other versions
JPH0234110B2 (en
Inventor
Katsumi Murai
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 JP56075233A priority Critical patent/JPS57189315A/en
Publication of JPS57189315A publication Critical patent/JPS57189315A/en
Publication of JPH0234110B2 publication Critical patent/JPH0234110B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To substantially improve a signal-to-noice ratio of a signal even in case when it is difficult to detect a signal exactly, by executing the signal processing of a binary decoded recording readout output. CONSTITUTION:To a data input terminal 25, an output of an OR circuit is applied through its OR circuit. On the other hand, to a clock input terminal 24, a clock shown in S is applied. A Wallis tree 18 totals the number of ''1'' outputted to the output terminal of a shift register 17, and outputs (m)-(o). Also, the question whether both of an output of a D flip-flop 19 and an output of the shift register 17 are ''0'' or not is decided by an NOR logical circuit 21, AND with the previous result of a digital comparator 20 is taken by an AND logical circuit 22, and an output shown in (r) is obtained. By an output of this AND logical circuit 22, a spikelike noise is removed entirely.
JP56075233A 1981-05-18 1981-05-18 Signal detecting circuit Granted JPS57189315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56075233A JPS57189315A (en) 1981-05-18 1981-05-18 Signal detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56075233A JPS57189315A (en) 1981-05-18 1981-05-18 Signal detecting circuit

Publications (2)

Publication Number Publication Date
JPS57189315A true JPS57189315A (en) 1982-11-20
JPH0234110B2 JPH0234110B2 (en) 1990-08-01

Family

ID=13570290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56075233A Granted JPS57189315A (en) 1981-05-18 1981-05-18 Signal detecting circuit

Country Status (1)

Country Link
JP (1) JPS57189315A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535463U (en) * 1978-08-29 1980-03-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5535463U (en) * 1978-08-29 1980-03-07

Also Published As

Publication number Publication date
JPH0234110B2 (en) 1990-08-01

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