Method and related apparatus for non-integer frequency division

Details Method and related apparatus for non-integer frequency division Method and related apparatus for non-integer frequency division

2005-10-25

2005-10-25

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C377S048000

Reexamination Certificate

active

06958633

ABSTRACT:
A method includes generating N reference clocks with period T and phases uniformly distributed in 360 degrees; using each of the N reference clocks to trigger M intermediate signals with period M*T and phases uniformly distributed in 360 degrees; and performing a logic operation between at least two intermediate signals respectively corresponding to two different reference clocks to generate an output clock with period (M/N)*T to achieve non-integer frequency division.

REFERENCES:
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patent: 5335253 (1994-08-01), Oliver et al.
patent: 6157694 (2000-12-01), Larsson
patent: 6356123 (2002-03-01), Lee et al.
patent: 6542013 (2003-04-01), Volk et al.
patent: 6707327 (2004-03-01), Choi et al.

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