One-chip semiconductor integrated circuit device capable of outp

Details One-chip semiconductor integrated circuit device capable of outp One-chip semiconductor integrated circuit device capable of outp

1994-09-02

1996-05-07

Hjerpe, Richard

Computer graphics processing and selective visual display system

Plural display systems

Diverse systems

345150, G09G 500

Patent

active

055150683

ABSTRACT:
A semiconductor device (CPLT) of the invention comprises a first terminal (R) to which analog data is to be supplied, a digital/analog converter (DAC1) with its output coupled to the first terminal, a second terminal (R'0) to which digital data is to be supplied, a digital output circuit (DOB) with its output coupled to the second terminal, and a preparation means (PLM, SEL) which is coupled to respective inputs of the digital/analog converter and the digital output circuit, and prepares digital data to be processed (RR) for any one of input of the digital/analog converter and input of the digital output circuit.

REFERENCES:
patent: 3947840 (1976-03-01), Craford et al.
patent: 4122444 (1978-10-01), Kitajima et al.
patent: 4638309 (1987-01-01), Ott
patent: 4751502 (1988-06-01), Ishii et al.
patent: 4799193 (1989-01-01), Horiguchi et al.
patent: 4808989 (1989-02-01), Tabata et al.
patent: 4980678 (1990-12-01), Zenda
patent: 4998100 (1991-03-01), Ishii
Transistor Technology, Jan. 1987, published by CQ Publication Company on Jan. 1, 1987, titled "Design of ACRTC Graphic Board <1>", pp. 402-411, particularly at pp. 410-411.
Published by CQ Publication Company, "Design of ACRTC Graphic Board <1>", pp. 402-411, Jan. 1, 1987.

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