Radio communication apparatus

Details Radio communication apparatus Radio communication apparatus

1995-01-26

1997-03-11

Chin, Stephen

Pulse or digital communications

Systems using alternating or pulsating current

Amplitude modulation

375344, 375345, 455103, 370204, H04J 900, H04L 2706, H04L 2732

Patent

active

056109466

ABSTRACT:
A radio communication apparatus comprises a first/second modulator for modulating a first/second signal according to a first/second frequency, a first demodulator for detecting the received first modulation signal and regenerating the carrier, a clock regenerator for regenerating a clock from the detection output from the first demodulator, an amplitude sampler for sampling the amplitude of the received first modulation signal according to the regenerated clock, a second demodulator for controlling the frequency of the received second modulation signal and executing demodulation for the signal, and a gain controller for executing gain control for the output from the second demodulator according to the output from the amplitude sampler.

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A. B. Carlson, Communication Systems. New York: McGraw-Hill Book Company, p. 220. 1986.
L. W. Couch, II, Digital and Analog Communication System. New York: Macmillan Publishing Company, p. 274. 1993.
"Feedforward Transparent Tone-In-Band: Its Implementations and Applications" , by Andrew Bateman, IEEE Transactions on Vehicular Technology, vol. 39, No. 3, Aug. 1990, pp. 235-243.

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