JPS54158132A - Color display unit - Google Patents

Color display unit

Info

Publication number
JPS54158132A
JPS54158132A JP6745378A JP6745378A JPS54158132A JP S54158132 A JPS54158132 A JP S54158132A JP 6745378 A JP6745378 A JP 6745378A JP 6745378 A JP6745378 A JP 6745378A JP S54158132 A JPS54158132 A JP S54158132A
Authority
JP
Japan
Prior art keywords
circuit
supplied
analog
output
signal terminal
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
JP6745378A
Other languages
Japanese (ja)
Inventor
Tsutomu Sato
Takuo Isayama
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP6745378A priority Critical patent/JPS54158132A/en
Publication of JPS54158132A publication Critical patent/JPS54158132A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To decrease the bit number of the memory by converting the picture information into the analog color signals and then memorizing them into the analog memory.
CONSTITUTION: The analog color signals obtained by converting the picture information into the analog signals are supplied through terminal A and then memorized into analog memory 20. These analog color signals are then delivered through terminal A' and supplied to level comparators 31W34 as well as to NOT circuits 35W38. The output of NOT circuit 35 is supplied to black color signal terminal BL0 and NOT circuit 39; the output of AND circuit 42 is supplied to blue color signal terminal B0; and the output of NOT circuit 36 is supplied to NOT circuit 40 and AND circuit 42 respectively. In the same way, the output of AND circuit 43 is applied to red color signal terminal R0, and the output of AND circuit 44 is supplied to white color signal terminal WO.
COPYRIGHT: (C)1979,JPO&Japio
JP6745378A 1978-06-05 1978-06-05 Color display unit Pending JPS54158132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6745378A JPS54158132A (en) 1978-06-05 1978-06-05 Color display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6745378A JPS54158132A (en) 1978-06-05 1978-06-05 Color display unit

Publications (1)

Publication Number Publication Date
JPS54158132A true JPS54158132A (en) 1979-12-13

Family

ID=13345356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6745378A Pending JPS54158132A (en) 1978-06-05 1978-06-05 Color display unit

Country Status (1)

Country Link
JP (1) JPS54158132A (en)

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