Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2006-04-11
2008-12-16
Gesesse, Tilahun B (Department: 2618)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S574000, C455S462000, C455S343200
Reexamination Certificate
active
07466979
ABSTRACT:
In one embodiment, a method for implementing two-way communication between at least first and second devices comprises steps of: (a1) during finite time periods following transmission of respective first messages from the first device to the second device, using the first device to listen for second messages transmitted from the second device to first device; and (a2) after each of the finite time periods following the transmission of the respective first messages from the first device to the second device, ceasing to use the first device to listen for second messages transmitted from the second device to the first device until after the first device transmits another first message to the second device. In another embodiment, a method for implementing two-way communication between at least first and second devices comprises steps of: (a1) during finite time periods following reception by the second device of respective first messages from the first device, using the second device to transmit second messages to the first device; and (a2) after each of the finite time periods following reception by the second device of respective first messages from the first device, ceasing to use the second device to transmit second messages to the first device until after the second device receives another first message from the first device.
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Blackadar Thomas P.
Gaudet Paul J.
Ohlenbusch Norbert
Oliver Steven R.
Wronski Joseph
FitSense Technology, Inc.
Gesesse Tilahun B
Wolf Greenfield & Sacks P.C.
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