Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2006-11-06
2009-02-17
Phan, Man (Department: 2419)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S329000, C370S356000, C370S401000, C455S432300, C455S553100
Reexamination Certificate
active
07492748
ABSTRACT:
A wireless local area network for digital radio communication between remote devices and a PBX telephone system, wherein the remote devices can access and use the voice message features in the PBX and the data bases on a host computer and servers. A wireless phone is provided for voice and data communication through the PBX or a CO telephone line with remote locations or the Internet using digital data packets and standard Internet Protocol. In a preferred embodiment of the invention, the remote device is a cash register comprising a bar code scanner and a phone. Radio communication between the register and a host computer is carried out over two channels, a first channel for data communication and a second channel for voice communication.
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Beach Robert
Heiman Fred P.
McGlynn Daniel R.
Swartz Jerome
Ingrassia Fisher & Lorenz P.C.
Phan Man
Symbol Technologies Inc.
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