JPS5627573A - Television receiver - Google Patents

Television receiver

Info

Publication number
JPS5627573A
JPS5627573A JP10290279A JP10290279A JPS5627573A JP S5627573 A JPS5627573 A JP S5627573A JP 10290279 A JP10290279 A JP 10290279A JP 10290279 A JP10290279 A JP 10290279A JP S5627573 A JPS5627573 A JP S5627573A
Authority
JP
Japan
Prior art keywords
subordinate
channels
tuner
screen
intervals
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
JP10290279A
Other languages
Japanese (ja)
Inventor
Hisafumi Yamada
Kimitake Utsunomiya
Yoshio Ishigaki
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 JP10290279A priority Critical patent/JPS5627573A/en
Publication of JPS5627573A publication Critical patent/JPS5627573A/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 make it possible to obtain a few subordinate screens without increasing the number of tuners by successively applying a tuner, selecting subordinate screen channels with a channel selection voltage differing in level at intervals of fixed time. CONSTITUTION:Tuner 7 that selects subordinate screen channels is applied with alternate selection voltages VB and VC, differing in level, from control circuit 30 at intervals of fixed time, e.g. 0.3-1 seconds. Then, video signals of respective selected channels are written in corresponding memories 15-22. Further, video signals of respective channels read out of memories 15-22 are mixed with primary color signals of the main signal system by mixer circuit 27 in accordance with blanking signals BLB and BLC from control circuit 30. This composite signal is applied to cathoderay tube 29 to project two contracted subordinate screens on the main screen at fixed positions.
JP10290279A 1979-08-13 1979-08-13 Television receiver Pending JPS5627573A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10290279A JPS5627573A (en) 1979-08-13 1979-08-13 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10290279A JPS5627573A (en) 1979-08-13 1979-08-13 Television receiver

Publications (1)

Publication Number Publication Date
JPS5627573A true JPS5627573A (en) 1981-03-17

Family

ID=14339783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10290279A Pending JPS5627573A (en) 1979-08-13 1979-08-13 Television receiver

Country Status (1)

Country Link
JP (1) JPS5627573A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229027A2 (en) * 1986-01-06 1987-07-15 Sony Corporation Television receivers
EP0229032A2 (en) * 1986-01-07 1987-07-15 Sony Corporation Television receivers
EP0229526A2 (en) 1985-12-28 1987-07-22 Sony Corporation Picture-in-picture television receivers
EP0230787A2 (en) 1985-12-28 1987-08-05 Sony Corporation Picture-in-picture television receivers
EP0261893A2 (en) * 1986-09-20 1988-03-30 Sony Corporation Picture-in-picture television receivers
US5045944A (en) * 1987-12-30 1991-09-03 Samsung Electronics Co., Ltd. Video signal generating circuit for use in video tape recorder and television receiver
US5177598A (en) * 1990-06-30 1993-01-05 Samsung Electronics Co., Ltd. Multipage display apparatus of teletext receiving system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0229526A2 (en) 1985-12-28 1987-07-22 Sony Corporation Picture-in-picture television receivers
EP0230787A2 (en) 1985-12-28 1987-08-05 Sony Corporation Picture-in-picture television receivers
EP0229027A2 (en) * 1986-01-06 1987-07-15 Sony Corporation Television receivers
US4777531A (en) * 1986-01-06 1988-10-11 Sony Corporation Still sub-picture-in-picture television receiver
EP0229032A2 (en) * 1986-01-07 1987-07-15 Sony Corporation Television receivers
EP0261893A2 (en) * 1986-09-20 1988-03-30 Sony Corporation Picture-in-picture television receivers
US4761688A (en) * 1986-09-20 1988-08-02 Sony Corporation Television receiver
US5045944A (en) * 1987-12-30 1991-09-03 Samsung Electronics Co., Ltd. Video signal generating circuit for use in video tape recorder and television receiver
US5177598A (en) * 1990-06-30 1993-01-05 Samsung Electronics Co., Ltd. Multipage display apparatus of teletext receiving system

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