Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2004-04-20
2010-11-09
Shah, Chirag G (Department: 2477)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C370S431000, C370S437000
Reexamination Certificate
active
07830832
ABSTRACT:
A distributed Internet Protocol (IP) voting system and method for use in Land Mobile Radio (LMR) Systems having a central send-and-receive site and one or more receive-only sites. In the distributed voting system, receive-only sites are directly linked to the control point using a network and associated packet transmission protocol. This may be a high-speed asynchronous data link such as a standard IP network link. Each remote site receiving digital data, calculates a bit error for that data. This error calculation is incorporated into the data header information. The data header information and data are placed in an IP packet and transmitted as a User Data Protocol (UDP) message to the control point. The control point selects the lowest bit rate data message, or the first control message, and retransmits it using a standard radio air interface protocol, such as the APCO Project 25 air interface protocol.
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European Search Report, Application No. EP 05 10 3116, Date of Application, Nov. 2, 2007.
Fox Rothschild LLP
Pine Valley Investments, Inc.
Reddivalam Srinivasa R
Sacco Robert J.
Shah Chirag G
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