Method and apparatus for generating and controlling a...

Details Method and apparatus for generating and controlling a... Method and apparatus for generating and controlling a...

2006-07-25

2006-07-25

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Phase shift by less than period of input

C327S254000

Reexamination Certificate

active

07081783

ABSTRACT:
Multiphase clock generating apparatus includes a multiplexer selecting one of a generated clock and a gated generated clock as an M-clock in accordance with a halt multiplexer control. Divider circuitry provides an alignment signal corresponding to an inverted M-clock divided by M. A recovery circuit recovers up to M distinct clocks from the M-clock in accordance with the alignment signal. The recovered clocks have a 180°/M relative phase difference. A halt circuit controls the halt multiplexer control to select the gated generated clock when a selected recovered clock matches a pre-determined clock level. The halt multiplexer control is clocked by the generated clock.

REFERENCES:
patent: 6282413 (2001-08-01), Baltus
patent: 6337976 (2002-01-01), Kudou
patent: 6466086 (2002-10-01), Syoji
patent: 6545546 (2003-04-01), Takeshita et al.

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