Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2004-12-27
2010-02-02
Pérez-Gutiérrez, Rafael (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C455S574000, C455S127500, C455S343200, C455S343400, C713S320000
Reexamination Certificate
active
07656853
ABSTRACT:
The present invention provides a system and method for conserving power consumption of a wireless device such as a BLUETOOTH slave device. A master device polls a slave device in a polling period. The slave responds by transmitting a data packet. If there is an error in transmission of the data, the master device may transmit an ARQ (Automatic Repeat Request) to the slave device in a TIMEOUT period to indicate that the data packet was not received. The slave device may reduce power consumption or power off during that TIMEOUT and receive a retransmit ARQ in a subsequent polling period.
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Kasraian Allahyar
Microsoft Corporation
Perez-Gutierrez Rafael
Woodcock & Washburn LLP
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