Apparatus for compensating phase of receiver and method thereof

Details Apparatus for compensating phase of receiver and method thereof Apparatus for compensating phase of receiver and method thereof

2007-04-10

2007-04-10

Bocure, Tesfaldet (Department: 2611)

Pulse or digital communications

Receivers

C375S326000, C455S324000

Reexamination Certificate

active

10960415

ABSTRACT:
The present invention provides an apparatus for compensating a phase difference of a receiver, the apparatus including: an accumulating unit for accumulating a radio frequency (RF) input signal and generating an accumulated RF signal in order to minimize an effect of a background noise of the RF input signal; a early-local oscillating unit for generating a phase-early local oscillated signal based on a local oscillated signal of the receiver; a late-local oscillating unit for generating a phase-late local oscillated signal based on a local oscillated signal of the receiver; a phase early-late compensating unit for compensating a phase early-late based on the accumulated RF input signal and the phase-early and phase-late local oscillated signals; a look-up table data mapping unit for controlling a phase of the local oscillated signal with respect to a phase difference; and a feedback transmitting unit for transmitting a phase compensating data to the local oscillator.

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“Digital Filter Equalization of Analog Gain Phase Mismatch in I-Q Receivers”, Harris, IEEE International Conference on 5th Universal Personal Communications, vol. 2, pp. 793-796, 1996.

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