JPS5631283A - False synchronizing signal generating circuit - Google Patents

False synchronizing signal generating circuit

Info

Publication number
JPS5631283A
JPS5631283A JP10799179A JP10799179A JPS5631283A JP S5631283 A JPS5631283 A JP S5631283A JP 10799179 A JP10799179 A JP 10799179A JP 10799179 A JP10799179 A JP 10799179A JP S5631283 A JPS5631283 A JP S5631283A
Authority
JP
Japan
Prior art keywords
capacitor
output
generated
terminal voltage
pulse
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
JP10799179A
Other languages
Japanese (ja)
Other versions
JPS6333757B2 (en
Inventor
Noriyuki Yamashita
Kazuo Yamagiwa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP10799179A priority Critical patent/JPS5631283A/en
Publication of JPS5631283A publication Critical patent/JPS5631283A/en
Publication of JPS6333757B2 publication Critical patent/JPS6333757B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/95—Time-base error compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

PURPOSE:To reduce the number of external connection terminals of a capacitor to one, by generating a signal by comparison outputs between two kinds of reference voltage and the terminal voltage of the capacitor which is discharged with a constant current synchronously with rotation phase detection pulses of a rotary head drum. CONSTITUTION:The PG pulse indicating the rotation phase of a rotary head drum is given to differentiating circuits C1 and R1 and 2-multiplying circuit 2, and a pulse is generated at every rise and fall of the PG pulse, and FF 3 is set. By setting of this FF 3, switch 4 is turned off, and electric charge charged in capacitor C2 is discharged through constant-current source 5. Then, when terminal voltage (d) of capacitor C2 falls, an output is generated in comparator 7 first, and FF9 is set. When terminal voltage (d) falls furthermore, an output is generated in comparator 8, and FF 3 is reset. By the output of FF 3, FF 9 is reset, and switch 4 is turned on, and capacitor C2 is charged rapidly. Thus, false synchronizing signal VD is obtained from the Q output of FF 9.
JP10799179A 1979-08-24 1979-08-24 False synchronizing signal generating circuit Granted JPS5631283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10799179A JPS5631283A (en) 1979-08-24 1979-08-24 False synchronizing signal generating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10799179A JPS5631283A (en) 1979-08-24 1979-08-24 False synchronizing signal generating circuit

Publications (2)

Publication Number Publication Date
JPS5631283A true JPS5631283A (en) 1981-03-30
JPS6333757B2 JPS6333757B2 (en) 1988-07-06

Family

ID=14473204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10799179A Granted JPS5631283A (en) 1979-08-24 1979-08-24 False synchronizing signal generating circuit

Country Status (1)

Country Link
JP (1) JPS5631283A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127763U (en) * 1982-02-24 1983-08-30 ソニー株式会社 AFC circuit
JPS6134765A (en) * 1984-07-25 1986-02-19 Sony Corp Synchronizing signal generator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162601A (en) * 1986-12-25 1988-07-06 Nippon Shokubai Kagaku Kogyo Co Ltd Water holding agent for cut flower
JPH0348442U (en) * 1989-09-13 1991-05-09
JPH03172120A (en) * 1989-12-01 1991-07-25 Shuichi Nishizawa Method for packaging plant, water holding material used therefor and production thereof
JPH0595257U (en) * 1991-05-20 1993-12-27 昭治 花岡 Cut flowers
JPH0544888U (en) * 1991-11-14 1993-06-15 株式会社日本デキシー Simple vase

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127763U (en) * 1982-02-24 1983-08-30 ソニー株式会社 AFC circuit
JPS6134765A (en) * 1984-07-25 1986-02-19 Sony Corp Synchronizing signal generator

Also Published As

Publication number Publication date
JPS6333757B2 (en) 1988-07-06

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