JPS5765065A - Television reciver - Google Patents

Television reciver

Info

Publication number
JPS5765065A
JPS5765065A JP14120380A JP14120380A JPS5765065A JP S5765065 A JPS5765065 A JP S5765065A JP 14120380 A JP14120380 A JP 14120380A JP 14120380 A JP14120380 A JP 14120380A JP S5765065 A JPS5765065 A JP S5765065A
Authority
JP
Japan
Prior art keywords
synchronizing signal
circuit
scanning
pulse voltage
horizontal
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
JP14120380A
Other languages
Japanese (ja)
Other versions
JPS639716B2 (en
Inventor
Takeshi Kureha
Teruo Kataoka
Taiichi Saeki
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 JP14120380A priority Critical patent/JPS5765065A/en
Priority to US06/309,850 priority patent/US4414571A/en
Publication of JPS5765065A publication Critical patent/JPS5765065A/en
Publication of JPS639716B2 publication Critical patent/JPS639716B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections

Abstract

PURPOSE:To enable to make a horizontal scanning frequency n-times while keeping the number of scanning lines and the arrangement of signals, by providing a means adjusting the scanning interval arbitrarily, in a TV receiver which converts the horizontal scanning period into 1/n for display. CONSTITUTION:A demodulation circuit 2 picks up a synchronizing signal from a video signal applied to an input terminal 1. The synchronizing signal obtained at the circuit 2 is applied to a synchronizing separation circuit 5, which separates the synchronizing signal into a vertical synchronizing signal and a horizontal synchronizing signal. The horizontal synchronizing signal is applied to a signal generating circuit 9. The circuit 9 generates a pulse voltage in 50% duty cycle from the horizontal synchronizing signal. This pulse voltage is applied to a drive circuit 10. The circuit 10 amplifies this pulse voltage to drive an auxiliary deflection means 11. In this case, the polartiy of the pulse voltage is selected to a polarity giving opposite deflection to the vertical scanning signal, and the amplitude of the pulse voltage is adjusted to an amplitude to move the scanning line by a half the scanning line interval. Thus, the number of scanning lines is made twice the original.
JP14120380A 1980-10-09 1980-10-09 Television reciver Granted JPS5765065A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP14120380A JPS5765065A (en) 1980-10-09 1980-10-09 Television reciver
US06/309,850 US4414571A (en) 1980-10-09 1981-10-08 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14120380A JPS5765065A (en) 1980-10-09 1980-10-09 Television reciver

Publications (2)

Publication Number Publication Date
JPS5765065A true JPS5765065A (en) 1982-04-20
JPS639716B2 JPS639716B2 (en) 1988-03-01

Family

ID=15286538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14120380A Granted JPS5765065A (en) 1980-10-09 1980-10-09 Television reciver

Country Status (1)

Country Link
JP (1) JPS5765065A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365284A (en) * 1989-02-10 1994-11-15 Sharp Kabushiki Kaisha Liquid crystal display device and driving method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365284A (en) * 1989-02-10 1994-11-15 Sharp Kabushiki Kaisha Liquid crystal display device and driving method thereof

Also Published As

Publication number Publication date
JPS639716B2 (en) 1988-03-01

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