Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2011-01-11
2011-01-11
Anderson, Matthew D (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S008000, C455S063100, C455S074100, C455S436000, C379S159000
Reexamination Certificate
active
07869823
ABSTRACT:
A wireless intercom having a microcontroller that is programmed to place the intercom into a power saving sleep mode unless actively receiving or transmitting signals. The microcontroller of the intercom is interconnected to a transceiver for sending and receiving digital data packets, and to a codec for converting the digital packets to analog sound signals, and vice versa. The intercom receives digital transmission of data over a first channel and then corrects any errors in the digital data using a retransmission of the digital data over a second channel that is sufficiently spaced apart from the first channel to avoid the possibility of interference affecting both the first and second channels.
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Anderson Matthew D
Fitch Even Tabin & Flannery
Safaipour Bobbak
The Chamberlain Group, Inc.
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