Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2011-04-12
2011-04-12
Trost, IV, William (Department: 2472)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S253000, C370S256000, C370S314000, C370S320000, C370S321000, C370S329000, C370S347000, C375S130000, C375S140000, C375S213000, C375S368000, C455S435300, C455S441000
Reexamination Certificate
active
07924783
ABSTRACT:
Two wireless local area networks exhibiting different characteristics link portable or mobile computer devices. An infrastructure network comprising radio base stations, and at least one portable computer device make up the first wireless network, which communicates using spread spectrum frequency hopping communication. A second local area network supports radio communication between a portable computer and peripheral devices with built-in transceivers. The networks use a reservation access protocol that facilitates frequency hopping synchronization, supports adaptive data rate selection based on communication quality, and prevents interference between the wireless networks. In a premises LAN, an infrastructure network comprises radio base stations and a backbone LAN. A higher-power LAN using frequency hopping comprises the infrastructure network and at least one mobile computing device. A lower-power LAN uses single-frequency spread spectrum communication between a mobile computing device and peripheral devices. A vehicular LAN supports short-range communication between vehicle and portable terminals.
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“Advanced Mobile Phone System&#x
Bunte Alan G.
Danielson Arvin D.
Mahany Ronald L.
Morris Michael D.
West Guy J.
Broadcom Corporation
McAndrews Held & Malloy
Nguyen Toan D
Trost, IV William
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