Telecommunications – Transmitter – Diversity
Patent
1996-04-10
1998-09-15
Chin, Tommy P.
Telecommunications
Transmitter
Diversity
333101, 455553, 455 82, 455 83, 455275, H03C 702, J04B 102, J04B 702, J04B 146
Patent
active
058094059
ABSTRACT:
A transmitter/receiver apparatus employed with advantage in a radio communication system for radio transmission and reception of frequency division multiplexed or time-division multiplexed signals of the frequency division duplex system on switching between plural antennas includes a plurality of antennas for radio transmission/reception of the reception and transmission signals, a switch for switching between the antennas, a plurality of antenna duplexers connected to the antennas via the switch and having respective different frequency bands, a transmission unit connected to the antenna duplexers, a reception unit connected to the antenna duplexers and a control unit for controlling the switch, transmission unit and the reception unit. The control unit controls the switch so that an optional one of the antennas will be connected to the antenna duplexers of the frequency band corresponding to the frequency used in radio communication solely by the switching. The control unit controls the reception unit during reception for receiving reception signals via the antenna duplexers from the optional antenna, while controlling the transmission unit during transmission for transmitting transmission signals of the frequency used for radio transmission via the antenna duplexers from the optional antenna.
REFERENCES:
patent: 3772689 (1973-11-01), Root, Jr.
patent: 4766437 (1988-08-01), Schmidt et al.
patent: 5054115 (1991-10-01), Sawa et al.
patent: 5095541 (1992-03-01), Aisaka et al.
patent: 5203018 (1993-04-01), Hirose
patent: 5239690 (1993-08-01), Heinonen
patent: 5261121 (1993-11-01), Hashimoto
patent: 5369801 (1994-11-01), Smith
patent: 5483667 (1996-01-01), Faruque
patent: 5548836 (1996-08-01), Taromaru
patent: 5598404 (1997-01-01), Hayashi et al.
patent: 5613219 (1997-03-01), Vogel et al.
Chin Tommy P.
Maioli Jay H.
Sony Corporation
Vincent David R.
LandOfFree
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