Computer graphics processing and selective visual display system – Display driving control circuitry – Physically integral with display elements
Patent
1994-04-29
1997-06-24
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display driving control circuitry
Physically integral with display elements
36471502, 382233, 348396, 345155, G09G 500
Patent
active
056421397
ABSTRACT:
Motion video may be imported into a personal or portable computer through an I/O port having a limited data bandwidth, such as a PCMCIA interface. Motion video data is compressed by sub-sampling both luminance and chrominance difference data for different sized groups of pixels. The compression apparatus may be formed on a PCMCIA card which interfaces with a personal or portable computer. Motion video data, compressed by as much as 5:1 or 6:1, is transferred through the PCMCIA card to a host computer. The host computer may serialize the compressed data and store the data in serialized compressed format in a video memory of a video controller. The video controller is provided with decompression circuitry to decompress the motion video data into luminance and chrominance difference data. The luminance and chrominance difference data is converted into RGB data and displayed in a video display.
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Bindlish Rakesh Kumar
Bril Vlad
Eglit Alexander
Alford William E.
Cirrus Logic Inc.
Hjerpe Richard
Mengistu Amare
Stewart David L.
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