Repeating switching of a cross-connect and a timing source...

Details Repeating switching of a cross-connect and a timing source... Repeating switching of a cross-connect and a timing source...

2007-07-10

2007-07-10

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Clock, pulse, or timing signal generation or analysis

C713S400000, C713S401000, C713S503000, C713S600000, C345S537000, C345S538000, C345S545000, C345S558000, C710S053000, C710S056000, C710S310000, C370S503000, C370S506000, C370S516000

Reexamination Certificate

active

10602461

ABSTRACT:
A method and apparatus for enabling repeated switching of a cross-connect and a timing source in a network element through the use of a phase adjuster. In one embodiment, a traffic card includes an aligner to adjust the occupancy of the data in two ingress FIFOs to synchronize their occupancy. In addition, the traffic card includes a clock control logic, including a phase adjuster, to adjust the phase of clock signals driving the two ingress FIFOs to avoid an underflow or overflow.

REFERENCES:
patent: 5331639 (1994-07-01), Takatori et al.
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patent: 6272552 (2001-08-01), Melvin et al.
patent: 6275896 (2001-08-01), Kojima
patent: 6456702 (2002-09-01), Nishihara
patent: 6581164 (2003-06-01), Felts et al.
patent: 6647502 (2003-11-01), Ohmori
patent: 6751238 (2004-06-01), Lipp et al.
patent: 6982993 (2006-01-01), Claveloux et al.

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