Multiplex communications – Communication over free space – Combining or distributing information via time channels
Patent
1997-07-16
2000-06-13
Ton, Dang
Multiplex communications
Communication over free space
Combining or distributing information via time channels
370442, H04J 316
Patent
active
060757825
ABSTRACT:
A free channel detecting method and device which can detect without fail a free channel regardless of the presence of an interfering wave which partly overlaps with the head and end of a slot configuring a time division channel. Output of an envelope detection circuit for detecting an envelope of a received signal is added to a peak hold circuit, and a free channel is detected according to the output of the peak hold circuit.
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Fukunabe Kenji
Mizumoto Toru
Kabushiki Kaisha Toshiba
Ton Dang
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