Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1998-01-05
2000-11-28
Shankar, Vijay
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
3642705, G09G 500
Patent
active
061542024
ABSTRACT:
An image output apparatus capable of realizing asynchronous data access by a host controller in response to an image data transfer request from the host controller, by adding a minimum amount of circuitry to the image output apparatus without using an external data buffer. The image output apparatus includes: a storage device for storing image data; a display circuit for sequentially reading the image data from the storage device and converting the image data into image data capable of being displayed; a timing controller for controlling the operation timing of the display circuit; and an output circuit for changing an operation mode of the timing controller in response to a data transfer request from the host controller and allowing the image data corresponding in amount to the data transfer request to be outputted asynchronously.
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Hara Hirotaka
Kimura Jun-ichi
Okunoki Yutaka
Saitoh Tadashi
Frenel Vanel
Hitachi , Ltd.
Sega Enterprises Ltd.
Shankar Vijay
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