Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Patent
1990-06-27
1994-02-15
Brier, Jeffery
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
345199, G09G 500
Patent
active
052871002
ABSTRACT:
An integrated circuit for use with a plurality of clock oscillators. The integrated circuit has a semiconductor chip, function performing circuitry fabricated on the semiconductor chip and responsive to clock pulses provided thereto, and a semiconductor chip package having pins connected to the function performing circuitry. The integrated circuit further has a register accessible via the pins for external entry of clock control information. A clock control circuit responsive to the clock control information entered in said register has inputs connected to pins for the clock oscillators. The function performing circuitry is connected to the clock control circuit so that clock pulses are provided to the function performing circuitry by the clock control circuit in accordance with the clock control information entered in the register. Other integrated circuits, palette devices, computer graphics systems, printer systems and methods are also disclosed.
REFERENCES:
patent: 3594656 (1971-07-01), Tsukamoto
patent: 4974096 (1990-11-01), Wash
Patent Abstracts of Japan, Kikuchi Akira, "Integrated Circuit Containing Oscillating Circuit", Jan. 04, 1987, Publication No. JP62070923.
Asal Michael D.
Guttag Karl M.
Killebrew, Jr. Carrell R.
Nye Jeffrey L.
Van Aken Jerry R.
Brier Jeffery
Donaldson Rich L.
Hollander James F.
Texas Instruments Incorporated
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