Transmitting receiving apparatus

Details Transmitting receiving apparatus Transmitting receiving apparatus

1995-11-22

1999-01-19

Chan, Jason

Pulse or digital communications

Systems using alternating or pulsating current

455 78, 455 86, 375219, H04L 2700

Patent

active

058621814

ABSTRACT:
A transmitter-receiver can eliminate a distortion of a transmission signal by a simple arrangement. In a transmitter-receiver of a communication system wherein a transmission timing and a reception timing are different from each other, comparing circuits (6I, 6Q) compare a transmission signal, which is not yet amplified in a transmission-system circuit, and a reception signal in a reception-system circuit during a transmission timing period. Differences detected by the comparing circuits (6I, 6Q) are fed back to signal-compensators (5I, 5Q) inserted into the transmission-system circuit, thereby eliminating a distortion generated in a transmission signal of the transmission-system circuit.

REFERENCES:
patent: 4777653 (1988-10-01), Bonnerot et al.
patent: 5229997 (1993-07-01), Hirata et al.
patent: 5404378 (1995-04-01), Kimura
patent: 5523726 (1996-06-01), Kroeger et al.
patent: 5535252 (1996-07-01), Kobayashi

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