Multiplex communications – Diagnostic testing – Determination of communication parameters
Patent
1997-02-28
1999-07-27
Nguyen, Chau
Multiplex communications
Diagnostic testing
Determination of communication parameters
370350, 370516, G01R 3108, H04J 306
Patent
active
059302356
ABSTRACT:
A radio communication system comprises a master station for carrying out a bidirectional communication between the master station and a slave station in time division multiple access. The master station comprises comparator circuit for producing a phase difference data between a slave frame signal of a of a slave transmission signal and a master frame signal of a master transmission signal. A first detecting circuit produces a first detection signal representative of whether or not a field strength level is less than a predetermined level. The phase difference data and the first detection signal are transmitted to the slave station. The slave station comprises a delay circuit for give a delay to the slave transmission signal in accordance with a given phase difference. A supplying section is responsive to the first detection signal to selectively supply the delay means with the phase difference data as the given phase difference.
REFERENCES:
patent: 5278848 (1994-01-01), Yamaguichi
patent: 5684790 (1997-11-01), Hirsawa
patent: 5697096 (1997-12-01), Aoki et al.
patent: 5781056 (1998-07-01), Fujii
NEC Corporation
Nguyen Chau
Nguyen Phuongchau Ba
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