JPS5752267A - Synchronizing lead-in frequency switching circuit - Google Patents

Synchronizing lead-in frequency switching circuit

Info

Publication number
JPS5752267A
JPS5752267A JP12746280A JP12746280A JPS5752267A JP S5752267 A JPS5752267 A JP S5752267A JP 12746280 A JP12746280 A JP 12746280A JP 12746280 A JP12746280 A JP 12746280A JP S5752267 A JPS5752267 A JP S5752267A
Authority
JP
Japan
Prior art keywords
circuit
lead
synchronization detecting
horizontal synchronizing
capacitor
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
JP12746280A
Other languages
Japanese (ja)
Other versions
JPS6262102B2 (en
Inventor
Nobukazu Hosoya
Nobuhiro Murakami
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki 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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP12746280A priority Critical patent/JPS5752267A/en
Publication of JPS5752267A publication Critical patent/JPS5752267A/en
Publication of JPS6262102B2 publication Critical patent/JPS6262102B2/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
    • H04N5/04—Synchronising

Abstract

PURPOSE:To widely set a lead-in range of a vertical synchronizing circuit, by short- circuiting a synchronization detecting output signal, and controlling a switching element, when receiving a video signal containing a large jitter component. CONSTITUTION:A synchronization detecting circuit SD outputs a synchronization detecting signal through a transistor TR T188 and a capacitor C4 of a logical operating circuit of a horizontal synchronizing signal H and a flyback pulse Pf. A follow-up property of a horizontal synchronizing circit is made satisfactory by constituting by said output so that a control time constant of the horizontal synchronizing circuit, or a control sensitivity, or both of them are switched. In case a video signal containing a large jitter component has been received, a short-circuit for discharging the capacitor C4 is formed, simultaneously switching elements TR T195- 197 are controlled, and a lead-in range of a vertical synchronizing circuit is set widely.
JP12746280A 1980-09-12 1980-09-12 Synchronizing lead-in frequency switching circuit Granted JPS5752267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12746280A JPS5752267A (en) 1980-09-12 1980-09-12 Synchronizing lead-in frequency switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12746280A JPS5752267A (en) 1980-09-12 1980-09-12 Synchronizing lead-in frequency switching circuit

Publications (2)

Publication Number Publication Date
JPS5752267A true JPS5752267A (en) 1982-03-27
JPS6262102B2 JPS6262102B2 (en) 1987-12-24

Family

ID=14960520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12746280A Granted JPS5752267A (en) 1980-09-12 1980-09-12 Synchronizing lead-in frequency switching circuit

Country Status (1)

Country Link
JP (1) JPS5752267A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074877A (en) * 1983-09-30 1985-04-27 Toshiba Audio Video Eng Corp Reproducing circuit of syncronizing signal
US6663924B1 (en) 1998-07-17 2003-12-16 Daiken Industries, Ltd. Packaging material for molding material and parts for semiconductor production apparatuses, method for packaging by using same and packaged molding material and parts for semiconductor production apparatuses
JP2007313560A (en) * 2006-05-29 2007-12-06 Ichiro Takemori FEEDER FOR Tig WELDING ROD AND SILVER BRAZING WELDING ROD

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238013U (en) * 1988-09-07 1990-03-13
JPH0669602U (en) * 1993-03-11 1994-09-30 株式会社松島製作所 Closed combustion gas fireplace

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50114116A (en) * 1974-02-16 1975-09-06
JPS51816U (en) * 1974-06-18 1976-01-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50114116A (en) * 1974-02-16 1975-09-06
JPS51816U (en) * 1974-06-18 1976-01-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6074877A (en) * 1983-09-30 1985-04-27 Toshiba Audio Video Eng Corp Reproducing circuit of syncronizing signal
US6663924B1 (en) 1998-07-17 2003-12-16 Daiken Industries, Ltd. Packaging material for molding material and parts for semiconductor production apparatuses, method for packaging by using same and packaged molding material and parts for semiconductor production apparatuses
JP2007313560A (en) * 2006-05-29 2007-12-06 Ichiro Takemori FEEDER FOR Tig WELDING ROD AND SILVER BRAZING WELDING ROD

Also Published As

Publication number Publication date
JPS6262102B2 (en) 1987-12-24

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