JPS5710586A - Two picture planes television picture receiver - Google Patents

Two picture planes television picture receiver

Info

Publication number
JPS5710586A
JPS5710586A JP8425980A JP8425980A JPS5710586A JP S5710586 A JPS5710586 A JP S5710586A JP 8425980 A JP8425980 A JP 8425980A JP 8425980 A JP8425980 A JP 8425980A JP S5710586 A JPS5710586 A JP S5710586A
Authority
JP
Japan
Prior art keywords
video signal
line
memory
period
picture
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
JP8425980A
Other languages
Japanese (ja)
Other versions
JPS6115629B2 (en
Inventor
Hideji Yanase
Yoshitaka Omori
Osamu Suzuki
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP8425980A priority Critical patent/JPS5710586A/en
Publication of JPS5710586A publication Critical patent/JPS5710586A/en
Publication of JPS6115629B2 publication Critical patent/JPS6115629B2/ja
Granted 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 obtain an inexpensive television picture receiver having excellent quality by selectively inserting a subchannel video signal which has been sampled, into a part of video signal period of a main channel through a storage means consisting of a field memory plus a line memory and a controlling circuit. CONSTITUTION:The first and second memory means 10, 11 are constituted of a field memory F for successively writing in one field portion of a video signal of a subchannel which has been sampled, and two line memories L1, L2, by which about one field delayed video signal is transferred alternately by one line on each transfer. A video signal is selectively taken out by one line on each fetching from each storage means 10, 11 in accordance with phase relation between the fields of each main channel and subchannel, through a controlling circuit 8, and is transferred, in order, to the third storage means 12. As a result, a signal of each one line portion is read out alternately in a prescribed small period in a video signal period of the main channel, and it is substituted for a part of its period and is visualized. In this way, it is possible to practically realize a two picture planes television receiver having an excellent quality, which has solved a reversal of a line by using an economical small-capacity memory.
JP8425980A 1980-06-20 1980-06-20 Two picture planes television picture receiver Granted JPS5710586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8425980A JPS5710586A (en) 1980-06-20 1980-06-20 Two picture planes television picture receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8425980A JPS5710586A (en) 1980-06-20 1980-06-20 Two picture planes television picture receiver

Publications (2)

Publication Number Publication Date
JPS5710586A true JPS5710586A (en) 1982-01-20
JPS6115629B2 JPS6115629B2 (en) 1986-04-25

Family

ID=13825449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8425980A Granted JPS5710586A (en) 1980-06-20 1980-06-20 Two picture planes television picture receiver

Country Status (1)

Country Link
JP (1) JPS5710586A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000715A1 (en) * 1985-07-19 1987-01-29 Matsushita Electric Industrial Co., Ltd. Two-screen tv receiver
EP0236571A2 (en) * 1985-12-17 1987-09-16 Matsushita Electric Industrial Co., Ltd. Television receiver having multi-image display capability
GB2201317B (en) * 1987-02-17 1991-07-17 Rca Licensing Corp Picture-in-picture video signal generator
GB2308263A (en) * 1995-12-15 1997-06-18 Samsung Electronics Co Ltd Graphics overlay device with improved overlay speed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987000715A1 (en) * 1985-07-19 1987-01-29 Matsushita Electric Industrial Co., Ltd. Two-screen tv receiver
US4816915A (en) * 1985-07-19 1989-03-28 Matsushita Electric Industrial Co., Ltd. Two-picture television receiver
DE3690375C2 (en) * 1985-07-19 1989-08-17 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka, Jp
EP0236571A2 (en) * 1985-12-17 1987-09-16 Matsushita Electric Industrial Co., Ltd. Television receiver having multi-image display capability
GB2201317B (en) * 1987-02-17 1991-07-17 Rca Licensing Corp Picture-in-picture video signal generator
GB2308263A (en) * 1995-12-15 1997-06-18 Samsung Electronics Co Ltd Graphics overlay device with improved overlay speed
US5883610A (en) * 1995-12-15 1999-03-16 Samsung Electronics Co., Ltd. Graphics overlay device

Also Published As

Publication number Publication date
JPS6115629B2 (en) 1986-04-25

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