JPS5648767A - Two-screen television receiver - Google Patents

Two-screen television receiver

Info

Publication number
JPS5648767A
JPS5648767A JP12407279A JP12407279A JPS5648767A JP S5648767 A JPS5648767 A JP S5648767A JP 12407279 A JP12407279 A JP 12407279A JP 12407279 A JP12407279 A JP 12407279A JP S5648767 A JPS5648767 A JP S5648767A
Authority
JP
Japan
Prior art keywords
interlacing
corrections
stops
screen
subordinate
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
JP12407279A
Other languages
Japanese (ja)
Other versions
JPS6223507B2 (en
Inventor
Tokuzo Fujii
Tomomitsu Azeyanagi
Hitoshi Miyagawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12407279A priority Critical patent/JPS5648767A/en
Publication of JPS5648767A publication Critical patent/JPS5648767A/en
Publication of JPS6223507B2 publication Critical patent/JPS6223507B2/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

Landscapes

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

Abstract

PURPOSE:To improve deterioration of a subordinate screen image, by stopping corrections of interlacing when write operation of a one-field memory is stopped. CONSTITUTION:When the voltage of electric power source 21 is supplied to readout address generating circuit 16 and interlacing correcting circuit 17 with the subordinate screen still switch closed, readout address generating circuit 16 stops the supply of an address for data transfer from the line memory to the field memory and interlacing correcting circuit 17 controls readout address generating circuit 16 to stop interlacing corrections. Therefore, closing subordinate screen still switch 20 stops the write operation of the field memory and also stops interlacing corrections. Consequently, even if the phase difference of a master screen video signal changes, an interlacing correction position moves vertically on a still picture on the subordinate screen, so that the subordinate screen picture will not deteriorate.
JP12407279A 1979-09-28 1979-09-28 Two-screen television receiver Granted JPS5648767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12407279A JPS5648767A (en) 1979-09-28 1979-09-28 Two-screen television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12407279A JPS5648767A (en) 1979-09-28 1979-09-28 Two-screen television receiver

Publications (2)

Publication Number Publication Date
JPS5648767A true JPS5648767A (en) 1981-05-02
JPS6223507B2 JPS6223507B2 (en) 1987-05-23

Family

ID=14876237

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12407279A Granted JPS5648767A (en) 1979-09-28 1979-09-28 Two-screen television receiver

Country Status (1)

Country Link
JP (1) JPS5648767A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206383A (en) * 1984-03-30 1985-10-17 Matsushita Electric Ind Co Ltd Television receiver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01131608A (en) * 1987-11-17 1989-05-24 Kamaya Kagaku Kogyo Co Ltd Cosmetic container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60206383A (en) * 1984-03-30 1985-10-17 Matsushita Electric Ind Co Ltd Television receiver
JPH0314272B2 (en) * 1984-03-30 1991-02-26 Matsushita Electric Ind Co Ltd

Also Published As

Publication number Publication date
JPS6223507B2 (en) 1987-05-23

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