Telecommunications – Transmitter and receiver at separate stations – Short range rf communication
Reexamination Certificate
2005-03-29
2005-03-29
Milord, Marceau (Department: 2681)
Telecommunications
Transmitter and receiver at separate stations
Short range rf communication
C455S575500, C455S063100, C455S067130, C455S423000, C455S556100, C455S556200, C375S132000, C375S133000, C375S219000, C370S338000, C370S345000, C370S348000, C370S350000
Reexamination Certificate
active
06873825
ABSTRACT:
Transmissions of a Bluetooth device are optimized to overcome signal interference. Mapping rules dictate different Bluetooth packet types to be used for transmission under various specified conditions including prescribed signal interference characteristics. The Bluetooth device measures signal interference characteristics upon different Bluetooth frequencies. The Bluetooth device identifies messages pending transmission to one or more remote Bluetooth devices, and receives designation of frequencies to be used in transmitting the pending messages to the remote Bluetooth device according to a predetermined frequency hopping scheme. The Bluetooth device applies the mapping rules to conditions including at least the measured signal interference characteristics for the designated frequencies to select Bluetooth packet types for use in transmitting the identified messages to the remote Bluetooth device.
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Beladi S. Hossain
Milord Marceau
Nguyen Thien T.
Qualcomm Incorporated
Wadsworth Philip R.
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