JPS6466689A - Color image processor - Google Patents

Color image processor

Info

Publication number
JPS6466689A
JPS6466689A JP62224424A JP22442487A JPS6466689A JP S6466689 A JPS6466689 A JP S6466689A JP 62224424 A JP62224424 A JP 62224424A JP 22442487 A JP22442487 A JP 22442487A JP S6466689 A JPS6466689 A JP S6466689A
Authority
JP
Japan
Prior art keywords
look
vdc
cpu
supplied
color code
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
JP62224424A
Other languages
Japanese (ja)
Inventor
Shigeo Tsuruoka
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.)
Seiko Epson Corp
Hudson Soft Co Ltd
Original Assignee
Seiko Epson Corp
Hudson Soft 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 Seiko Epson Corp, Hudson Soft Co Ltd filed Critical Seiko Epson Corp
Priority to JP62224424A priority Critical patent/JPS6466689A/en
Publication of JPS6466689A publication Critical patent/JPS6466689A/en
Pending legal-status Critical Current

Links

Landscapes

  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE: To reduce the circuit scale of a look-up-table by making a one port input for a color code input to the look-up-table supplied asynchronously from CPU and a display control unit. CONSTITUTION: Address input signals 14 from CPU 2 and those 15 from a display control unit(VDC) 5 are supplied to a multiplexer 21 controlled by a control signal SEL from CPU 2. In addition, the data supplied from CPU 2 to VDC 5 through an interface circuit 3 are successively written in the table of VRAM. A look-up-table 20 is equipped with a decoder circuit 18 and a latch circuit 19, outputting a color code based on data inside VRAM read out by VDC. The multiplexer 21 selects by SEL signal a display on the screen or rewriting of the look-up-table 20; in the case of a screen display, a color code outputted from VDC 5 is supplied to the look-up-table 20.
JP62224424A 1987-09-08 1987-09-08 Color image processor Pending JPS6466689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224424A JPS6466689A (en) 1987-09-08 1987-09-08 Color image processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224424A JPS6466689A (en) 1987-09-08 1987-09-08 Color image processor

Publications (1)

Publication Number Publication Date
JPS6466689A true JPS6466689A (en) 1989-03-13

Family

ID=16813561

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224424A Pending JPS6466689A (en) 1987-09-08 1987-09-08 Color image processor

Country Status (1)

Country Link
JP (1) JPS6466689A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004170906A (en) * 2002-11-08 2004-06-17 Kyocera Mita Corp Image forming apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178493A (en) * 1983-03-30 1984-10-09 株式会社日立製作所 Multicolor information display

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178493A (en) * 1983-03-30 1984-10-09 株式会社日立製作所 Multicolor information display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004170906A (en) * 2002-11-08 2004-06-17 Kyocera Mita Corp Image forming apparatus

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