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JPS5380202A - Phase-locked loop for demodulation of multichannel record - Google Patents

Phase-locked loop for demodulation of multichannel record

Info

Publication number
JPS5380202A
JPS5380202A JP15600376A JP15600376A JPS5380202A JP S5380202 A JPS5380202 A JP S5380202A JP 15600376 A JP15600376 A JP 15600376A JP 15600376 A JP15600376 A JP 15600376A JP S5380202 A JPS5380202 A JP S5380202A
Authority
JP
Japan
Prior art keywords
demodulation
phase
locked loop
multichannel record
improve
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
JP15600376A
Other languages
Japanese (ja)
Other versions
JPS5923158B2 (en
Inventor
Masao Kasuga
Nobuaki Takahashi
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP51156003A priority Critical patent/JPS5923158B2/en
Publication of JPS5380202A publication Critical patent/JPS5380202A/en
Publication of JPS5923158B2 publication Critical patent/JPS5923158B2/en
Expired 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
    • G11B20/24—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Signal Processing For Recording (AREA)
  • Stereophonic System (AREA)
  • Networks Using Active Elements (AREA)

Abstract

PURPOSE:To improve the S/N ratio necessary for constituting the loop, and to improve the distorsion factor of the demodulated signal, by attenuating or removing the frequency component approximately the same as the self-traveling oscillation frequency of the voltagecontrol oscillator, in the input-control coltage of the voltage-control oscillator constituting the PLL.
JP51156003A 1976-12-24 1976-12-24 Phase locked loop for multi-channel record demodulation Expired JPS5923158B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51156003A JPS5923158B2 (en) 1976-12-24 1976-12-24 Phase locked loop for multi-channel record demodulation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51156003A JPS5923158B2 (en) 1976-12-24 1976-12-24 Phase locked loop for multi-channel record demodulation

Publications (2)

Publication Number Publication Date
JPS5380202A true JPS5380202A (en) 1978-07-15
JPS5923158B2 JPS5923158B2 (en) 1984-05-31

Family

ID=15618197

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51156003A Expired JPS5923158B2 (en) 1976-12-24 1976-12-24 Phase locked loop for multi-channel record demodulation

Country Status (1)

Country Link
JP (1) JPS5923158B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137333A (en) * 1982-02-10 1983-08-15 Fujitsu General Ltd Pll circuit
JPS58194528U (en) * 1982-06-18 1983-12-24 株式会社富士通ゼネラル Active low pass filter circuit
JPS6077526A (en) * 1983-10-05 1985-05-02 Fujitsu Ltd Phase synchronism circuit
JPS6284236U (en) * 1985-11-13 1987-05-29

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58137333A (en) * 1982-02-10 1983-08-15 Fujitsu General Ltd Pll circuit
JPS58194528U (en) * 1982-06-18 1983-12-24 株式会社富士通ゼネラル Active low pass filter circuit
JPS6077526A (en) * 1983-10-05 1985-05-02 Fujitsu Ltd Phase synchronism circuit
JPS6284236U (en) * 1985-11-13 1987-05-29

Also Published As

Publication number Publication date
JPS5923158B2 (en) 1984-05-31

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