JPS5417622A - Scanning-speed modulator circuit - Google Patents

Scanning-speed modulator circuit

Info

Publication number
JPS5417622A
JPS5417622A JP8220477A JP8220477A JPS5417622A JP S5417622 A JPS5417622 A JP S5417622A JP 8220477 A JP8220477 A JP 8220477A JP 8220477 A JP8220477 A JP 8220477A JP S5417622 A JPS5417622 A JP S5417622A
Authority
JP
Japan
Prior art keywords
scanning
modulator circuit
speed modulator
amount
video signal
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
JP8220477A
Other languages
Japanese (ja)
Other versions
JPS5920312B2 (en
Inventor
Susumu Tsujihara
Katsuhiko Yamamoto
Minoru Takeda
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 JP52082204A priority Critical patent/JPS5920312B2/en
Publication of JPS5417622A publication Critical patent/JPS5417622A/en
Publication of JPS5920312B2 publication Critical patent/JPS5920312B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Picture Signal Circuits (AREA)
  • Details Of Television Scanning (AREA)

Abstract

PURPOSE: To control the contour compensation amount through scanning-speed modulation, by removing the noise amount, which has been superposed upon a video signal corresponding to magnetic-field strength, for the period of a synchronizing signal and by applying a DC voltage obtained by rectifying the detection signal to a gain control circuit for the control of the amount of the video signal.
COPYRIGHT: (C)1979,JPO&Japio
JP52082204A 1977-07-08 1977-07-08 Scan speed modulation circuit Expired JPS5920312B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52082204A JPS5920312B2 (en) 1977-07-08 1977-07-08 Scan speed modulation circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52082204A JPS5920312B2 (en) 1977-07-08 1977-07-08 Scan speed modulation circuit

Publications (2)

Publication Number Publication Date
JPS5417622A true JPS5417622A (en) 1979-02-09
JPS5920312B2 JPS5920312B2 (en) 1984-05-12

Family

ID=13767883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52082204A Expired JPS5920312B2 (en) 1977-07-08 1977-07-08 Scan speed modulation circuit

Country Status (1)

Country Link
JP (1) JPS5920312B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142466A (en) * 1981-02-27 1982-09-03 Sanyo Electric Co Motor driver for auger type ice making machine
JPS60155265U (en) * 1984-03-26 1985-10-16 シャープ株式会社 Image quality correction circuit
JPH01238279A (en) * 1988-03-17 1989-09-22 Sony Corp Velocity modulation circuit
JPH0257670U (en) * 1988-10-20 1990-04-25
JPH05122558A (en) * 1991-10-25 1993-05-18 Fujitsu General Ltd Television receiver

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142466A (en) * 1981-02-27 1982-09-03 Sanyo Electric Co Motor driver for auger type ice making machine
JPS60155265U (en) * 1984-03-26 1985-10-16 シャープ株式会社 Image quality correction circuit
JPH01238279A (en) * 1988-03-17 1989-09-22 Sony Corp Velocity modulation circuit
JPH0257670U (en) * 1988-10-20 1990-04-25
JPH05122558A (en) * 1991-10-25 1993-05-18 Fujitsu General Ltd Television receiver

Also Published As

Publication number Publication date
JPS5920312B2 (en) 1984-05-12

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