Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1997-04-10
2000-02-29
Nguyen, Chau
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370350, 455 671, H04J 300, H04J 306, H04B 1700
Patent
active
060318287
ABSTRACT:
A base station transmits a synchronizing signal and a clock and AGC circuits of numerous sub-stations produce AGC voltages for indicating adjustment of gain and adjust levels of received signals converted to an intermediate frequency supplied from a frequency conversion unit on the basis of the AGC voltage so that the levels of the received signals are maintained constant in order that the base station can collect a small amount of data from each of the sub-stations in an extremely short time. A data processing circuit of each sub-station transmits data to the base station at a transmission timing corresponding to an identification number of its own sub-station on the basis of the synchronizing signal and the clock in the received data and a gain control circuit adjusts transmission power on the basis of the AGC voltage.
REFERENCES:
patent: 4488296 (1984-12-01), Yamamoto et al.
patent: 5124685 (1992-06-01), Hoshikawa
patent: 5491837 (1996-02-01), Haartsem
patent: 5548807 (1996-08-01), Ueda
patent: 5550831 (1996-08-01), Tanahashi
patent: 5564080 (1996-10-01), Eul et al.
patent: 5574984 (1996-11-01), Reed et al.
patent: 5590409 (1996-12-01), Sawahashi et al.
patent: 5640396 (1997-06-01), Cudak et al.
patent: 5689814 (1997-11-01), Hagisawa et al.
patent: 5784365 (1998-07-01), Ikeda
patent: 5930235 (1997-02-01), Arai
Koro Kenji
Takayanagi Tatsuo
Frank Robert J.
Nguyen Chau
Nguyen Phuong Chau Ba
Oki Electric Industry Co., Ltd
Toho Electronics Co., Ltd
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