JPS56141687A - Color demodulation equipment - Google Patents

Color demodulation equipment

Info

Publication number
JPS56141687A
JPS56141687A JP4489580A JP4489580A JPS56141687A JP S56141687 A JPS56141687 A JP S56141687A JP 4489580 A JP4489580 A JP 4489580A JP 4489580 A JP4489580 A JP 4489580A JP S56141687 A JPS56141687 A JP S56141687A
Authority
JP
Japan
Prior art keywords
switches
signal
switched
switch
discriminator
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
JP4489580A
Other languages
Japanese (ja)
Other versions
JPS6130472B2 (en
Inventor
Noriyuki Sagishima
Teruo Kitani
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 JP4489580A priority Critical patent/JPS56141687A/en
Publication of JPS56141687A publication Critical patent/JPS56141687A/en
Publication of JPS6130472B2 publication Critical patent/JPS6130472B2/ja
Granted 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
    • H04N9/44—Colour synchronisation
    • H04N9/465—Synchronisation of the PAL-switch

Abstract

PURPOSE:To output an exact R-Y color difference signal by arranging the first and second switches which can be interlocked and switched, and the third and fourth switches, and switching the third and fourth switches by means of a switching signal generated when the inputs of the discriminator are not matched. CONSTITUTION:The first and second switches 12, 16 which can be interlocked and switched are arranged, a chrominance signal of the PAL system color TV signal, and an inverted chrominance signal are provided to the input terminal of the switch 12, and its output is provided to the R-Y demodulator 6. The third and fourth switches 24, 27 which can be interlocked and switched are arranged, a chrominance subcarrier of R-Y axis and a chrominance subcarrier of -(R-Y) axis are provided to the respective switches 24, 27, and the output of the switch 24 and that of the switch 27 are provided to the demodulator 6 and the phase discriminator 17. The switch 16 is cascaded to the discriminator 17, a burst signal contained in the TV signal is provided to the input of the switch 16, the switches 16, 24 are switched at 1 horizontal scanning line, and the switches 24, 27 are switched by a switching signal when the polarities of both the inputs of the discriminator 17 is not matched.
JP4489580A 1980-04-04 1980-04-04 Color demodulation equipment Granted JPS56141687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4489580A JPS56141687A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4489580A JPS56141687A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Publications (2)

Publication Number Publication Date
JPS56141687A true JPS56141687A (en) 1981-11-05
JPS6130472B2 JPS6130472B2 (en) 1986-07-14

Family

ID=12704209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4489580A Granted JPS56141687A (en) 1980-04-04 1980-04-04 Color demodulation equipment

Country Status (1)

Country Link
JP (1) JPS56141687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005167997A (en) * 2003-11-10 2005-06-23 Matsushita Electric Ind Co Ltd Color signal demodulating apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005167997A (en) * 2003-11-10 2005-06-23 Matsushita Electric Ind Co Ltd Color signal demodulating apparatus

Also Published As

Publication number Publication date
JPS6130472B2 (en) 1986-07-14

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