JPS5731268A - Frame signal generator - Google Patents

Frame signal generator

Info

Publication number
JPS5731268A
JPS5731268A JP10611280A JP10611280A JPS5731268A JP S5731268 A JPS5731268 A JP S5731268A JP 10611280 A JP10611280 A JP 10611280A JP 10611280 A JP10611280 A JP 10611280A JP S5731268 A JPS5731268 A JP S5731268A
Authority
JP
Japan
Prior art keywords
picture
signal
contracted
frame signal
written
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
JP10611280A
Other languages
Japanese (ja)
Other versions
JPS6343947B2 (en
Inventor
Tadashi Okada
Harukuni Mori
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP10611280A priority Critical patent/JPS5731268A/en
Publication of JPS5731268A publication Critical patent/JPS5731268A/en
Publication of JPS6343947B2 publication Critical patent/JPS6343947B2/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
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Studio Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To generate a frame signal coincident with a contracted picture, by extracting a picture element out of a coded video signal and storing densely, then read successively to obtain a contracted picture and at the same time clearing other two memories for writing, and reading. CONSTITUTION:For instance, a coded TV signal (a) is written densely into a main memory 3 with a picture element extracted with every two units by a signal processing circuit 2 controlled by an intermittent pulse generator 11, and then read successively to produce a picture signal contracted down to 1/2 at a terminal B. On the other hand, the information ''0'' is once written by means of submemories 5 and 6 which are controlled by a control circuit 8, etc. After this, the information ''1'' is written in place of the picture signal and with the same address as the memory 3 and then read out to produce a frame signal coincident with the position of a contracted picture at a terminal C. In such way, a frame signal coincident with a contracted picture is produced then a digital special effect generator able to be synthesized with other video signals in a simple way is obtained.
JP10611280A 1980-07-31 1980-07-31 Frame signal generator Granted JPS5731268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10611280A JPS5731268A (en) 1980-07-31 1980-07-31 Frame signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10611280A JPS5731268A (en) 1980-07-31 1980-07-31 Frame signal generator

Publications (2)

Publication Number Publication Date
JPS5731268A true JPS5731268A (en) 1982-02-19
JPS6343947B2 JPS6343947B2 (en) 1988-09-01

Family

ID=14425377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10611280A Granted JPS5731268A (en) 1980-07-31 1980-07-31 Frame signal generator

Country Status (1)

Country Link
JP (1) JPS5731268A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224675A (en) * 1985-03-29 1986-10-06 Nippon Hoso Kyokai <Nhk> Video signal switching device
JPH03123386A (en) * 1989-10-06 1991-05-27 Canon Inc Display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224675A (en) * 1985-03-29 1986-10-06 Nippon Hoso Kyokai <Nhk> Video signal switching device
JPH0533589B2 (en) * 1985-03-29 1993-05-19 Nippon Hoso Kyokai
JPH03123386A (en) * 1989-10-06 1991-05-27 Canon Inc Display device

Also Published As

Publication number Publication date
JPS6343947B2 (en) 1988-09-01

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