Bidirectional bus driver and bidirectional bus circuit

Details Bidirectional bus driver and bidirectional bus circuit Bidirectional bus driver and bidirectional bus circuit

2005-06-21

2005-06-21

Tan, Vibol (Department: 2819)

Electronic digital logic circuitry

Tri-state

C326S086000, C326S090000, C710S110000

Reexamination Certificate

active

06909307

ABSTRACT:
A bidirectional bus driver includes a first buffer which supplies the data signal to the second bus when the first control signal is enabled; a second buffer which supplies the data signal to the first bus when the first control signal is enabled; a first control; a second control; a third buffer which supplies a signal in the second bus to the first bus when the second control signal is enabled; and a fourth buffer which supplies a signal in the first bus to the second bus when the third control signal is enabled. The first control circuit enables the second control signal when a signal transition is detected in the second bus while the first control signal is not enabled; and the second control circuit enables the third control signal when a signal transition is detected in the first bus while the first control signal is not enabled.

REFERENCES:
patent: 5202593 (1993-04-01), Huang et al.
patent: 5736870 (1998-04-01), Greason et al.
patent: 5801549 (1998-09-01), Cao et al.
patent: 6515515 (2003-02-01), Bozso et al.
patent: 6834318 (2004-12-01), Hunter et al.
patent: 2001-102914 (2001-04-01), None

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