Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Synchronizing
Reexamination Certificate
2007-06-19
2007-06-19
Le, Dinh T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Synchronizing
C327S149000, C327S156000, C331S011000
Reexamination Certificate
active
10774180
ABSTRACT:
In one embodiment of the present invention, a phase generator, comprising a plurality of delay blocks, is coupled in a feedback loop with a phase detector. When in an open loop mode, the phase generator is operable as a voltage controlled delay line. The phase detector compares an input signal with a first output signal of the phase generator and generates a first control signal based thereon. The phase generator is also coupled in a feedback loop with a phase-frequency detector. When in a closed loop mode, the phase generator is operable as a voltage controlled oscillator and the phase-frequency detector compares the input signal with a second output signal of the phase generator. The phase-frequency detector then generates a second control signal based thereon.
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Cypress Semiconductor Corporation
Le Dinh T.
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