JPS5637778A - Producing circuit of inserted screen signal - Google Patents

Producing circuit of inserted screen signal

Info

Publication number
JPS5637778A
JPS5637778A JP11334379A JP11334379A JPS5637778A JP S5637778 A JPS5637778 A JP S5637778A JP 11334379 A JP11334379 A JP 11334379A JP 11334379 A JP11334379 A JP 11334379A JP S5637778 A JPS5637778 A JP S5637778A
Authority
JP
Japan
Prior art keywords
signal
screen
picture signal
reduced
clock
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
JP11334379A
Other languages
Japanese (ja)
Inventor
Makoto Onga
Seisuke Yamanaka
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 JP11334379A priority Critical patent/JPS5637778A/en
Publication of JPS5637778A publication Critical patent/JPS5637778A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To ensure an insertion of the reduced screen into an optional position on the screen, by storing the inserted picture signal in the charge transfer type memory element and in accordance with the inserted position of the screen. CONSTITUTION:The video signal SX for inserted picture is supplied successively to the input shift registers of the charge transfer type memory elements 10A-10C which possess the input shift register, the vertical register for data storage and the output register each. Then the clock slower than the reference reading clock is applied, and at the same time a vertical shift is given. And thus the optionally reduced inserted picture signal is stored in the desired position of each of the elements 10A-10C. This picture signal is then read out by the reference clock, and the video signal SY is compounded with the inserted picture signal through the switching circuit 5. As a result, the screen formed with the signal SX can be reduced and inserted to the desired position in the screen formed with the signal SY.
JP11334379A 1979-09-04 1979-09-04 Producing circuit of inserted screen signal Pending JPS5637778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11334379A JPS5637778A (en) 1979-09-04 1979-09-04 Producing circuit of inserted screen signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11334379A JPS5637778A (en) 1979-09-04 1979-09-04 Producing circuit of inserted screen signal

Publications (1)

Publication Number Publication Date
JPS5637778A true JPS5637778A (en) 1981-04-11

Family

ID=14609832

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11334379A Pending JPS5637778A (en) 1979-09-04 1979-09-04 Producing circuit of inserted screen signal

Country Status (1)

Country Link
JP (1) JPS5637778A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500193A (en) * 1982-01-12 1984-02-02 エルシント，インク electronic multiplex image device
US4984083A (en) * 1986-05-12 1991-01-08 Hitachi, Ltd. Image processing system
US4998171A (en) * 1988-07-05 1991-03-05 Samsung Electronics Co., Ltd. Automatic shift circuit for a sub-picture screen for picture-in-picture feature
US5208660A (en) * 1989-07-29 1993-05-04 Sharp Kabushiki Kaisha Television display apparatus having picture-in-picture display function and the method of operating the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59500193A (en) * 1982-01-12 1984-02-02 エルシント，インク electronic multiplex image device
US4984083A (en) * 1986-05-12 1991-01-08 Hitachi, Ltd. Image processing system
US4998171A (en) * 1988-07-05 1991-03-05 Samsung Electronics Co., Ltd. Automatic shift circuit for a sub-picture screen for picture-in-picture feature
US5208660A (en) * 1989-07-29 1993-05-04 Sharp Kabushiki Kaisha Television display apparatus having picture-in-picture display function and the method of operating the same

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