Multiplex communications – Communication over free space – Combining or distributing information via time channels
Patent
1997-01-23
2000-07-11
Hsu, Alpus H.
Multiplex communications
Communication over free space
Combining or distributing information via time channels
370445, H04B 7212
Patent
active
060883502
ABSTRACT:
A digital signal radio communication system employing frequency hopping for multi-purpose data processing apparatuses communicates predetermined information to a multi-purpose data processing apparatus by transmitting a carrier to a predetermined number of time slots of a communication frame having a plurality of time slots and communicates different information in accordance with which time slot the carrier is to be transmitted to among the plurality of time slots. A detector detects whether the carrier is in the predetermined number of time slots among the plurality of time slots or in more than the predetermined number of time slots. A controller performs control based on the carrier when the detector detects that the carrier is in the predetermined time slots, and judges that noise is generated when the detector detects the carrier in more than the predetermined number of time slots.
REFERENCES:
patent: 5379279 (1995-01-01), Backof et al.
patent: 5502722 (1996-03-01), Fulghum
patent: 5537434 (1996-07-01), Persson et al.
patent: 5781582 (1998-07-01), Sage et al.
Canon Kabushiki Kaisha
Hsu Alpus H.
Slavitt Mitchell
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