Invention Grant
US07899427B2 Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitry
有权
移动无线通信设备，其具有来自射频通信电路的麦克风噪声降低
- Patent Title: Mobile wireless communications device with reduced microphone noise from radio frequency communications circuitry
- Patent Title (中): 移动无线通信设备，其具有来自射频通信电路的麦克风噪声降低
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Application No.: US12128710Application Date: 2008-05-29
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Publication No.: US07899427B2Publication Date: 2011-03-01
- Inventor: Michael Corrigan , George Mankaruse , Lizhong Zhu
- Applicant: Michael Corrigan , George Mankaruse , Lizhong Zhu
- Applicant Address: CA Waterloo, Ontario
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Main IPC: H04B1/10
- IPC: H04B1/10
Abstract:
A mobile wireless communications device includes a housing and circuit board in the housing and having radio frequency (RF) circuitry and a power amplifier and microphone mounted thereon. An antenna is carried within the housing and operative with the RF circuitry. An RF shield surrounds and isolates the microphone from the RF circuitry, power amplifier and antenna and shields the microphone from radiated energy generated from the RF circuitry, antenna or power amplifier.
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