JPS54141521A - Video display converter - Google Patents

Video display converter

Info

Publication number
JPS54141521A
JPS54141521A JP4877478A JP4877478A JPS54141521A JP S54141521 A JPS54141521 A JP S54141521A JP 4877478 A JP4877478 A JP 4877478A JP 4877478 A JP4877478 A JP 4877478A JP S54141521 A JPS54141521 A JP S54141521A
Authority
JP
Japan
Prior art keywords
memory
address
video information
video display
video
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
JP4877478A
Other languages
Japanese (ja)
Inventor
Hisaharu Takeuchi
Makoto Imamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4877478A priority Critical patent/JPS54141521A/en
Publication of JPS54141521A publication Critical patent/JPS54141521A/en
Pending legal-status Critical Current

Links

Landscapes

  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: To convert the direction of video display easily and in high speed, by providing the memory storing the video information and the means reading out the video information in opposite order, in the video display conversion unit of television game unit.
CONSTITUTION: To make display the display screen at normal state through the inversion of 180 degrees, the address of memory is inverted by 180 degrees to the normal condition, and the arrangement of a plurality of bits of one address is to be readout after being converted toward reverse direction. The video information is stored in the refresh memory 26. The inverted refresh counter 31 desingated the address of the memory 26 in opposite sequence. The video information of each address read out from the memory 26 is parallelly written in the bidirectional shift register 34 and it is read out with the clock of the clock generation circuit 32 in series time series, and the arrangement of a plurality of bits is converted in normal or reverse direction with the multiplexer 37.
COPYRIGHT: (C)1979,JPO&Japio
JP4877478A 1978-04-26 1978-04-26 Video display converter Pending JPS54141521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4877478A JPS54141521A (en) 1978-04-26 1978-04-26 Video display converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4877478A JPS54141521A (en) 1978-04-26 1978-04-26 Video display converter

Publications (1)

Publication Number Publication Date
JPS54141521A true JPS54141521A (en) 1979-11-02

Family

ID=12812607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4877478A Pending JPS54141521A (en) 1978-04-26 1978-04-26 Video display converter

Country Status (1)

Country Link
JP (1) JPS54141521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846978A (en) * 1981-08-20 1983-03-18 バリ・マニユフアクチユアリング・コ−ポレ−シヨン Line buffer apparatus for displaying plural images in video game apparatus
JPS63309085A (en) * 1987-06-10 1988-12-16 Nec Corp Picture display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5846978A (en) * 1981-08-20 1983-03-18 バリ・マニユフアクチユアリング・コ−ポレ−シヨン Line buffer apparatus for displaying plural images in video game apparatus
JPH0420636B2 (en) * 1981-08-20 1992-04-03 Bally Mfg Corp
JPS63309085A (en) * 1987-06-10 1988-12-16 Nec Corp Picture display device

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