Converter circuit for synchronizing bus control signals...

Details Converter circuit for synchronizing bus control signals... Converter circuit for synchronizing bus control signals...

2006-04-25

2006-04-25

Browne, Lynne H. (Department: 2116)

Electrical computers and digital processing systems: support

Synchronization of clock or timing signals, data, or pulses

Using delay

C713S501000

Reexamination Certificate

active

07036038

ABSTRACT:
A converter circuit for performing transfer of control logic signals between a first device and a second device in connection with an interconnection bus, the first device operating at the frequency of a first clock signal and the second device operating at the frequency of a second clock signal. The clock frequencies may be in a first ratio to one another corresponding to unity, as well as in a second and a third ratio. The converter circuit includes manipulation circuit elements which define respective propagation paths through the converter circuit for control signals. A logic network may assume three states, corresponding, respectively, to the first, second and third ratios between the frequencies of the clock signals, selectively interposing the manipulation elements in the propagation paths.

REFERENCES:
patent: 5602878 (1997-02-01), Cross
patent: 5771372 (1998-06-01), Pham et al.
patent: 6000037 (1999-12-01), Herbert
patent: 6081904 (2000-06-01), Chencinski et al.
patent: 6172540 (2001-01-01), Gandhi
patent: 6275077 (2001-08-01), Tobin et al.
patent: 6516420 (2003-02-01), Audityan et al.
patent: 6636980 (2003-10-01), Gervais et al.

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