TW270267B - Digital/analog conversion apparatus having color palette RAM for multimedia - Google Patents

Digital/analog conversion apparatus having color palette RAM for multimedia

Info

Publication number
TW270267B
TW270267B TW82109108A TW82109108A TW270267B TW 270267 B TW270267 B TW 270267B TW 82109108 A TW82109108 A TW 82109108A TW 82109108 A TW82109108 A TW 82109108A TW 270267 B TW270267 B TW 270267B
Authority
TW
Taiwan
Prior art keywords
digital
color information
latch circuit
digital color
address signal
Prior art date
Application number
TW82109108A
Other languages
Chinese (zh)
Inventor
Jae Hwan Song
Oh Kwow Kwon
Min Hwahn Kin
Kwon Ho Cha
Jeong Sik Hyun
Original Assignee
Hyundai Electronics Ind
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
Priority claimed from KR1019930021729A external-priority patent/KR960013556B1/en
Application filed by Hyundai Electronics Ind filed Critical Hyundai Electronics Ind
Application granted granted Critical
Publication of TW270267B publication Critical patent/TW270267B/en

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Abstract

A digital/analog conversion apparatus with a color palette RAM for a multimedia, comprising a first latch circuit for inputting a pixel address signal, a pixel mask register for selectively masking the pixel address signal from the first latch circuit in response to a control signal from a microprocessor interface circuit, a second latch circuit for storing digital color information temporarily, and first to third digital/analog converters for converting the digital color information from the second latch circuit into analog R, G and B color information. The palette RAM stores digital color information from the microprocessor interface circuit and outputs the digital color information stored in its location corresponding to the pixel address signal from the pixel mask register to the second latch circuit. The apparatus also comprises first to third switching circuits for inputting the digital color information from the color palette RAM, digital video color information from an external video medium and external digital color information from a pixel address signal input line and selectively cutputting the inputted information in response to external first to third control signals, and a third latch circuit for transferring the cutput information from the second switching circuit to a digital color information output terminal.
TW82109108A 1992-11-02 1993-10-30 Digital/analog conversion apparatus having color palette RAM for multimedia TW270267B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR920020421 1992-11-02
KR1019930021729A KR960013556B1 (en) 1992-11-02 1993-10-19 A digital/analogue converter including a chrominance palette ram

Publications (1)

Publication Number Publication Date
TW270267B true TW270267B (en) 1996-02-11

Family

ID=26629338

Family Applications (1)

Application Number Title Priority Date Filing Date
TW82109108A TW270267B (en) 1992-11-02 1993-10-30 Digital/analog conversion apparatus having color palette RAM for multimedia

Country Status (1)

Country Link
TW (1) TW270267B (en)

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