Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2011-07-26
2011-07-26
Huang, Wen (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S570000, C455S575100, C455S296000, C455S300000, C455S301000, C439S076100, C439S078000, C439S083000
Reexamination Certificate
active
07986979
ABSTRACT:
A wireless headset has improved immunity to RF electromagnetic interference produced from wireless communications devices. A headset body is adapted to be worn by a user and includes a microphone and earpiece. An antenna receives wireless communication signals and passes them to RF and audio circuitry mounted within the headset body. The RF and audio circuitry include a Bluetooth module operatively connected to the antenna for transmitting and receiving wireless communication signals, an audio CODEC connected to the Bluetooth module, and audio connection lines connected between the CODEC and the earpiece and between the CODEC and the microphone. A filter is connected into each of the audio connection lines at the earpiece and microphone and operative for reducing the RF coupling from a mobile wireless communications device.
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Corrigan Michael
Mankaruse George
Zhu Lizhong
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Huang Wen
Research In Motion Limited
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