TW270267B - Digital/analog conversion apparatus having color palette RAM for multimedia - Google Patents
Digital/analog conversion apparatus having color palette RAM for multimediaInfo
- 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
Links
Landscapes
- Digital Computer Display Output (AREA)
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.
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) |
-
1993
- 1993-10-30 TW TW82109108A patent/TW270267B/en active
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