JPS5765070A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS5765070A
JPS5765070A JP55141202A JP14120280A JPS5765070A JP S5765070 A JPS5765070 A JP S5765070A JP 55141202 A JP55141202 A JP 55141202A JP 14120280 A JP14120280 A JP 14120280A JP S5765070 A JPS5765070 A JP S5765070A
Authority
JP
Japan
Prior art keywords
circuit
signal
horizontal
scanning line
frequency
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.)
Pending
Application number
JP55141202A
Other languages
Japanese (ja)
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 JP55141202A priority Critical patent/JPS5765070A/en
Priority to US06/309,850 priority patent/US4414571A/en
Publication of JPS5765070A publication Critical patent/JPS5765070A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal

Abstract

PURPOSE:To reproduce an original signal with fidelity when a horizontal scanning frequency is converted, by converting the horizontal scanning frequency into n-times of the said frequency and superimposing the 2m-th scanning line on the 2m-1 th scanning line, thus achieving scanning and conversion. CONSTITUTION:A demodulation signal of a video signal of the standard system outputted from a demodulation circuit 2 enters a signal conversion circuit 3 and is converted into double speed. The horizontal synchronizing signal formed at the circuit 2 is applied to a multiplier 5 and a waveform generating circuit 7, and the vertical synchronizing signal is applied to a vertical deflection circuit 8. The multiplier 5 converts the horizontal synchronizing signal into double frequency and supplies it to a horizontal deflection circuit 6. On the other hand, a circuit 7 generates a pulse voltage in synchronizing with the horizontal synchronizing signal, this pulse voltage is applied to the circuit 8 and superimposed on the certical deflection signal. In this case, the amplitude of the superimposed pulse voltage is adjusted so as to overlap the 2m th scanning line on the (2m-1) th (where; m is an integer 1 or more) scanning line. Thus, the original signal is reproduced with fidelity, and bright screen is realized.
JP55141202A 1980-10-09 1980-10-09 Television receiver Pending JPS5765070A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55141202A JPS5765070A (en) 1980-10-09 1980-10-09 Television receiver
US06/309,850 US4414571A (en) 1980-10-09 1981-10-08 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55141202A JPS5765070A (en) 1980-10-09 1980-10-09 Television receiver

Publications (1)

Publication Number Publication Date
JPS5765070A true JPS5765070A (en) 1982-04-20

Family

ID=15286516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55141202A Pending JPS5765070A (en) 1980-10-09 1980-10-09 Television receiver

Country Status (1)

Country Link
JP (1) JPS5765070A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201467A (en) * 1982-05-20 1983-11-24 Matsushita Electric Ind Co Ltd Television receiver
FR2561844A1 (en) * 1984-03-21 1985-09-27 Rca Corp VIDEO SIGNAL PROCESSING CIRCUIT FOR PROGRESSIVE SCAN
JPH03154485A (en) * 1989-11-10 1991-07-02 Mitsubishi Electric Corp Superimposer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58201467A (en) * 1982-05-20 1983-11-24 Matsushita Electric Ind Co Ltd Television receiver
FR2561844A1 (en) * 1984-03-21 1985-09-27 Rca Corp VIDEO SIGNAL PROCESSING CIRCUIT FOR PROGRESSIVE SCAN
JPH03154485A (en) * 1989-11-10 1991-07-02 Mitsubishi Electric Corp Superimposer

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