Systems and method for automatic quadrature phase imbalance...

Details Systems and method for automatic quadrature phase imbalance... Systems and method for automatic quadrature phase imbalance...

2007-11-20

2007-11-20

Mis, David (Department: 2817)

Oscillators

Polyphase output

C327S238000

Reexamination Certificate

active

11460298

ABSTRACT:
An automatic quadrature phase compensation system comprises an on-chip analog phase sense circuit capable of detecting small differences in quadrature phase error and providing a corresponding DC voltage, a voltage-controlled or programmable phase delay circuit to implement quadrature phase error correction, and a feedback system or compensation engine used to process the sensed error voltage and apply a corresponding correction signal to the adjustable phase delay.

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International Search Report for PCT/US2006/06807 dated Aug. 2, 2006.

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