High speed switch

Details High speed switch High speed switch

2006-08-29

2006-08-29

Chang, Daniel (Department: 2819)

Electronic digital logic circuitry

Accelerating switching

Bipolar transistor

C326S017000, C326S089000

Reexamination Certificate

active

07098684

ABSTRACT:
A high speed switch. The novel switch includes an input circuit having a transistor Q1for receiving an input signal, a first mechanism for providing a path from an output of Q1to an output terminal, and a second mechanism for receiving a control signal and in accordance therewith reducing the conductivity of the path during a mute mode. The first mechanism includes a first circuit for providing a first path from an output of Q1to a first node, and a second circuit for providing a second path connecting the first node to the output terminal. The second mechanism is adapted to apply a signal to the first node during the mute mode such that the first and second circuits are off or partially conducting. The switch also includes a circuit for clamping the first node to a first predetermined voltage during the mute mode.

REFERENCES:
patent: 4763107 (1988-08-01), Koen et al.
patent: 5614844 (1997-03-01), Sasaki et al.
patent: 6369637 (2002-04-01), Kiriaki

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