Circuit for changing frequency of a signal and frequency...

Details Circuit for changing frequency of a signal and frequency... Circuit for changing frequency of a signal and frequency...

2011-01-25

2011-01-25

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S114000

Reexamination Certificate

active

07876134

ABSTRACT:
A signal frequency change circuit is presented. The signal frequency change circuit includes a delay line, a detector, a controller, a multiplexer, and an output unit. The delay line delays a clock signal by a first delay time corresponding to a delay control signal to generate a delay signal and delays the clock signal by a second delay time shorter than a first delay time to generate a pre-frequency change clock signal. The detector generates a phase locked completion signal. The controller sequentially shifts the delay control signal and a multiplexing control signal. The multiplexer selects and outputs one of the pre-frequency change clock signals. The output unit generates a frequency change clock signal.

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patent: 2002-076853 (2002-03-01), None

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