JPS56136089A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS56136089A
JPS56136089A JP4003980A JP4003980A JPS56136089A JP S56136089 A JPS56136089 A JP S56136089A JP 4003980 A JP4003980 A JP 4003980A JP 4003980 A JP4003980 A JP 4003980A JP S56136089 A JPS56136089 A JP S56136089A
Authority
JP
Japan
Prior art keywords
channel
signal
screen
circuit
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
JP4003980A
Other languages
Japanese (ja)
Inventor
Kazuhiro Nakai
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP4003980A priority Critical patent/JPS56136089A/en
Publication of JPS56136089A publication Critical patent/JPS56136089A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/45—Picture in picture, e.g. displaying simultaneously another television channel in a region of the screen

Abstract

PURPOSE:To enable to know broadcast contents of respective channels at a time when pictures of those channels are displayed on one screen, by displaying channel numbers, which correspond to pictures, on the screen. CONSTITUTION:The local oscillation frequency of a tuner is frequency-divided by frequency divider 27, whose output is applied to channel discriminating circuit 28. Channel discriminating circuit 28 generates the code signal that corresponds to the oscillation frequency. With a control signal from signal generating circuit 32 which generates a switching signal, etc., for more than one screen, a channel code signal is called at prescribed positions of horizontal and vertical scanning periods and applied to channel character generating circuit 30. The corresponding character signal is mixed with a video signal obtained by DA converter 23 by mixing circuit 33, so that the channel number will be displayed together with the picture of the channel.
JP4003980A 1980-03-27 1980-03-27 Television receiver Pending JPS56136089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4003980A JPS56136089A (en) 1980-03-27 1980-03-27 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4003980A JPS56136089A (en) 1980-03-27 1980-03-27 Television receiver

Publications (1)

Publication Number Publication Date
JPS56136089A true JPS56136089A (en) 1981-10-23

Family

ID=12569761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4003980A Pending JPS56136089A (en) 1980-03-27 1980-03-27 Television receiver

Country Status (1)

Country Link
JP (1) JPS56136089A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157483A (en) * 1985-12-28 1987-07-13 Sony Corp Television receiver
EP0261893A2 (en) * 1986-09-20 1988-03-30 Sony Corporation Picture-in-picture television receivers
EP0360070A2 (en) * 1988-09-19 1990-03-28 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Device for simultaneously displaying several television signals

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157483A (en) * 1985-12-28 1987-07-13 Sony Corp Television receiver
EP0261893A2 (en) * 1986-09-20 1988-03-30 Sony Corporation Picture-in-picture television receivers
EP0360070A2 (en) * 1988-09-19 1990-03-28 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Device for simultaneously displaying several television signals

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