Multiplex communications – Duplex – Time division
Patent
1998-01-20
2000-08-22
Olms, Douglas W.
Multiplex communications
Duplex
Time division
455 78, 333 11, H04L 1250
Patent
active
061083135
ABSTRACT:
A transmitter/receiver for use in a multichannel time division duplexing system having an independent combiner and divider to isolate a transmission channel from a reception channel. The transmitter/receiver includes a first and second circulator connected, respectively, to a first and second transceiver. A transmission channel, formed between the first and second circulators and an antenna, transfers transmission signals from the first and second transceivers to the antenna in response to a transmission enable signal. A reception channel, formed between the first and second circulators and the antenna, transfers a reception signal from the antenna to the first and second transceiver in response to a reception enable signal. A switching control circuit is provided for generating the transmission enable signal during a transmission mode of operation and for generating the reception enable signal during a reception mode of operation.
REFERENCES:
patent: 4451832 (1984-05-01), Stites
patent: 5701595 (1997-12-01), Green, Jr.
patent: 5815803 (1998-09-01), Ho et al.
patent: 5896563 (1999-04-01), Kawanami et al.
Combined Search and Examination Report Under Sections 17 and 18(3). "The Patent Office". Jul. 1, 1998.
Kim Young-Il
Lee Ki-Hyoung
Olms Douglas W.
Samsung Electronics Co,. Ltd
Vanderpuye Kenneth
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