Semiconductor device

Details Semiconductor device Semiconductor device

1991-07-03

1993-09-07

Coles, Sr., Edward L.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359181, 307480, 307527, H04B 1004

Patent

active

052434567

ABSTRACT:
A semiconductor device for driving a light emitting element used in high speed optical communication. The semiconductor device comprises circuitry for delaying a clock signal and producing first and second delay signals. The second delay signal has a delay time different from that of the first delay signal. The first delay signal controls flip-flop circuitry which receives a data signal and outputs a signal indicative of the data signal. The first delay signal also controls a first latch circuit to receive the signal from the flip-flop circuitry and output a signal with the delay time of the first delay signal. The second delay signal controls a second latch circuit to receive the signal from the flip-flop circuitry and output a signal with the delay time of the second delay signal. The signals output from the first and second latch circuits are logically combined by logic circuitry. The logic circuitry is either AND or OR circuitry. The logic circuitry outputs the result of the combination to driving circuitry which provides the current to drive the light emitting element in accordance with the output of the logic circuitry.

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High speed data formal converter circuit, IBM Technical Disclosure Bulletin, vol. 29, No. 11, May 11, 1987 New York, pp. 5036-5039.
G. Turinsky, Schroner Impulsdetektor, Radio Fernsehen Elektronik, vol. 37, No. 2, 1988, Berlin DD, p. 131.

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