JPS54122034A - Reproductive screen coloring display unit - Google Patents

Reproductive screen coloring display unit

Info

Publication number
JPS54122034A
JPS54122034A JP2941078A JP2941078A JPS54122034A JP S54122034 A JPS54122034 A JP S54122034A JP 2941078 A JP2941078 A JP 2941078A JP 2941078 A JP2941078 A JP 2941078A JP S54122034 A JPS54122034 A JP S54122034A
Authority
JP
Japan
Prior art keywords
color
signal
decoder
bus line
reproductive
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
JP2941078A
Other languages
Japanese (ja)
Inventor
Akira Matsushita
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 JP2941078A priority Critical patent/JPS54122034A/en
Publication of JPS54122034A publication Critical patent/JPS54122034A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make it possible to color pattern display on a screen easily and stably, by providing a color circuit.
CONSTITUTION: Central processing unit CPU, read-only memory ROM, random access memory RAM 20, and a decoder are comined by an address bus line and a data bus line; a regenerative pattern signal is obtained by shift register 24 from RAM20 and then applied to color circuit 25. On the basis of the oscillation frequency signal of oscillator 12, decoder 41 divides the pattern signal into a luminance signal component and various color signal components, which are applied to gate circuits 42 to 44 which gate those components selectively. Further, outputs of gate circuits 42 to 44 are mixed by mixer 27 to obtain a color video signal.
COPYRIGHT: (C)1979,JPO&Japio
JP2941078A 1978-03-15 1978-03-15 Reproductive screen coloring display unit Pending JPS54122034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2941078A JPS54122034A (en) 1978-03-15 1978-03-15 Reproductive screen coloring display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2941078A JPS54122034A (en) 1978-03-15 1978-03-15 Reproductive screen coloring display unit

Publications (1)

Publication Number Publication Date
JPS54122034A true JPS54122034A (en) 1979-09-21

Family

ID=12275348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2941078A Pending JPS54122034A (en) 1978-03-15 1978-03-15 Reproductive screen coloring display unit

Country Status (1)

Country Link
JP (1) JPS54122034A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02278287A (en) * 1989-04-20 1990-11-14 Fujitsu Ltd Video signal synthesizing system
JPH02278288A (en) * 1989-04-20 1990-11-14 Fujitsu Ltd Video signal synthesizing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02278287A (en) * 1989-04-20 1990-11-14 Fujitsu Ltd Video signal synthesizing system
JPH02278288A (en) * 1989-04-20 1990-11-14 Fujitsu Ltd Video signal synthesizing system

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