JPS57103485A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS57103485A
JPS57103485A JP17989080A JP17989080A JPS57103485A JP S57103485 A JPS57103485 A JP S57103485A JP 17989080 A JP17989080 A JP 17989080A JP 17989080 A JP17989080 A JP 17989080A JP S57103485 A JPS57103485 A JP S57103485A
Authority
JP
Japan
Prior art keywords
signal
signals
systems
color
eliminated
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
JP17989080A
Other languages
Japanese (ja)
Inventor
Hideki Miura
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 JP17989080A priority Critical patent/JPS57103485A/en
Publication of JPS57103485A publication Critical patent/JPS57103485A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/642—Multi-standard receivers

Abstract

PURPOSE:To use a single averaging circuit to receive plural TV signals different to standard system, by changing the clock frequency applied to a delay element to average color difference signals of adjacent horizontal periods. CONSTITUTION:A chrominance subcarrier signal is supplied to a pair of demodulators 14 and 15 for the purpose of demodulating color difference signals R-Y and B-Y. This chrominance subcarrier signal is different in TV standard systems of a received TV signal. Consequently, if a switch SW4 is switched in accordance with the received signal, signals R-Y and B-Y which are always delayed by 1H are obtained by single averaging circuits 30 and 40 provided in respective color signal transmission systems because the number of bits of delay elements 31 and 41 is fixed. Consequently, when the TV signal is in the NTSC system, cross color is eliminated by averaging signals R-Y and B-Y of adjacent horizontal periods. When the TV signal is in the PAL system, differential gain distortion is eliminated besides cross color in systems N and M.
JP17989080A 1980-12-18 1980-12-18 Television receiver Pending JPS57103485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17989080A JPS57103485A (en) 1980-12-18 1980-12-18 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17989080A JPS57103485A (en) 1980-12-18 1980-12-18 Television receiver

Publications (1)

Publication Number Publication Date
JPS57103485A true JPS57103485A (en) 1982-06-28

Family

ID=16073682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17989080A Pending JPS57103485A (en) 1980-12-18 1980-12-18 Television receiver

Country Status (1)

Country Link
JP (1) JPS57103485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682209A (en) * 1985-03-25 1987-07-21 U.S. Philips Corporation Digital chrominance processor with a phase and frequency controlled digital oscillator independent of the stable oscillator frequency

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4682209A (en) * 1985-03-25 1987-07-21 U.S. Philips Corporation Digital chrominance processor with a phase and frequency controlled digital oscillator independent of the stable oscillator frequency

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