Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Patent
1996-04-18
1999-01-26
Hsu, Alpus H.
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
370349, 375200, 375219, 375269, 455450, 455464, H04L 1228
Patent
active
058645500
ABSTRACT:
The invention relates to a wireless local area network system having data terminals and transceivers which communicate with the data terminals and transmit and receive data, for forming a wireless link between at least two data terminals, the system transmitting data as outputs in a certain frequency range. The output has a signal (B) which is visible as a narrow-band signal in the frequency range of the output. The signal (B) can be detected from farther away than a conventional output by arranging circuits (7, 8, 9) in the local area network system for filtering and detecting the narrow-band signal of a certain frequency from the received signal.
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Hsu Alpus H.
Nokia Mobile Phones Ltd.
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