Receiver with offset compensation

Details Receiver with offset compensation Receiver with offset compensation

2006-11-07

2006-11-07

Phu, Phuong (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S327000, C375S376000

Reexamination Certificate

active

07133470

ABSTRACT:
Receiver for receiving a received signal with a carrier frequency loop (18) which generates a carrier frequency deviation detection signal (TF) for detecting a carrier frequency of the received signal in a first carrier frequency capture range; a carrier phase loop (32) which generates a carrier phase deviation detection signal (TP) for detecting a carrier phase of the received signal, and settles when the carrier frequency deviation detection signal (TF) is within a second carrier frequency capture range; and with an offset control circuit (29) which changes the carrier frequency deviation detection signal (TF) and/or changes the second carrier frequency capture range by means of an offset control signal until a carrier phase lock detection circuit (21) indicates to the offset control circuit that the carrier phase offset of the received signal is less than an adjustable threshold value.

REFERENCES:
patent: 5644606 (1997-07-01), Martinez et al.
patent: 5809096 (1998-09-01), Martinez et al.
patent: 6490010 (2002-12-01), Shibuya et al.
patent: 0 828 366 (1998-03-01), None
Mirabbasi et al., “Classical and Modern Receiver Architectures,” Topics in Circuits for Communications, IEEE COmmunications Magazine (USA), p. 132-139, (Nov. 2000).

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