Producing control signals indicating transmit diversity and...

Details Producing control signals indicating transmit diversity and... Producing control signals indicating transmit diversity and...

2004-03-24

2009-06-30

Fan, Chieh M (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

C375S260000, C375S362000

Reexamination Certificate

active

07555068

ABSTRACT:
A circuit is designed with a measurement circuit (746) coupled to receive an input signal from at least one of a first antenna and a second antenna of a transmitter. The measurement circuit produces an output signal corresponding to a magnitude of the input signal. A control circuit (726) is coupled to receive the output signal, a first reference signal (η1) and a second reference signal (η2). The control circuit is arranged to produce a control signal in response to a comparison of the output signal, the first reference signal and the second reference signal.

REFERENCES:
patent: 4983981 (1991-01-01), Feldman
patent: 5202903 (1993-04-01), Okanoue
patent: 6317411 (2001-11-01), Whinnett et al.
patent: 6363104 (2002-03-01), Bottomley
patent: 6393073 (2002-05-01), Eilts
patent: 6424679 (2002-07-01), Dabak et al.
patent: 6470043 (2002-10-01), Lo et al.
patent: 6501803 (2002-12-01), Alamouti et al.

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