Emulation device for driving a LCD with signals formatted for a

Details Emulation device for driving a LCD with signals formatted for a Emulation device for driving a LCD with signals formatted for a

1989-06-27

1993-01-12

Lee, Thomas C.

Boots, shoes, and leggings

3642375, 3642391, 3642392, 3642703, 3642709, 3649272, 3649342, 3649394, 3649395, 364DIG1, 395425, G06F 314, G06F 506

Patent

active

051796929

ABSTRACT:
An interface device for changing the serial data format of the video signal output of a computer intended for display on a cathode ray tube, to a video signal having parallel data format for a liquid crystal display is provided. The device includes a read/write control circuit which responds to a clock signal corresponding to the synchronizing signal of the serial signal and to an asynchronous clock signal. Data signals which were removed from the serial signal and temporarily stored in memory are read out as parallel data signals at the next read cycle when read address counter is counted.

REFERENCES:
patent: 4176400 (1979-11-01), Heckel
patent: 4208713 (1980-06-01), Berg
patent: 4303986 (1981-12-01), Lans
patent: 4417318 (1983-11-01), Hirahata et al.
patent: 4438326 (1984-03-01), Uchida
patent: 4536856 (1985-08-01), Hiroishi
patent: 4740786 (1988-04-01), Smith
patent: 4899352 (1990-02-01), Cucchi et al.

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