JPS5624888A - Agreement detecting circuit of receiving screen - Google Patents

Agreement detecting circuit of receiving screen

Info

Publication number
JPS5624888A
JPS5624888A JP10007279A JP10007279A JPS5624888A JP S5624888 A JPS5624888 A JP S5624888A JP 10007279 A JP10007279 A JP 10007279A JP 10007279 A JP10007279 A JP 10007279A JP S5624888 A JPS5624888 A JP S5624888A
Authority
JP
Japan
Prior art keywords
circuit
output
agreement
vertical synchronizing
receivers
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
JP10007279A
Other languages
Japanese (ja)
Inventor
Hideo Yabiku
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 JP10007279A priority Critical patent/JPS5624888A/en
Publication of JPS5624888A publication Critical patent/JPS5624888A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details

Abstract

PURPOSE:To make it possible to decide automatically whether receiving channels are equal to each other or not, by detecting agreement between phases of horizontal synchronizing signals or vertical synchronizing signals of two TV receivers. CONSTITUTION:Horizontal synchronizing signals 20 and 20' of the first and the second receivers are supplied to horizontal synchronizing agreement detecting circuit 8. In circuit 8, outputs 20 and 20' are low-level if phases of synchronzing separation outputs 20 and 20' do not agree with each other, and they become high-level and are input to AND gate 12 if they agree with each other. Output 22 of vertical synchronizing separating circuit 6 of the first receiver is applied to data terminal D of the vertical synchronizing agreement detecting circuit constituted by D latch circuit 11, and output 22' of vertical synchronizing separating circuit 6' of the second receiver is applied to clock terminal CK of circuit 11. When output 21 of circuit 8 and output 25 of circuit 11 become high-level, output 26 is output to gate 12 to indicate that receiving channels of two receivers are the same channel.
JP10007279A 1979-08-06 1979-08-06 Agreement detecting circuit of receiving screen Pending JPS5624888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10007279A JPS5624888A (en) 1979-08-06 1979-08-06 Agreement detecting circuit of receiving screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10007279A JPS5624888A (en) 1979-08-06 1979-08-06 Agreement detecting circuit of receiving screen

Publications (1)

Publication Number Publication Date
JPS5624888A true JPS5624888A (en) 1981-03-10

Family

ID=14264244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10007279A Pending JPS5624888A (en) 1979-08-06 1979-08-06 Agreement detecting circuit of receiving screen

Country Status (1)

Country Link
JP (1) JPS5624888A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064847A2 (en) * 1981-05-06 1982-11-17 Thomas Mewes Improved television receiver monitoring apparatus
JPS6230943A (en) * 1984-12-28 1987-02-09 Bridgestone Corp Tire load test tomograph

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024094U (en) * 1973-06-25 1975-03-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5024094U (en) * 1973-06-25 1975-03-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064847A2 (en) * 1981-05-06 1982-11-17 Thomas Mewes Improved television receiver monitoring apparatus
JPS6230943A (en) * 1984-12-28 1987-02-09 Bridgestone Corp Tire load test tomograph

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