发明授权
US08565842B2 Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)
有权
具有改进的音频换能器对RF电磁干扰（EMI）的RF抗扰度的移动无线通信设备
- 专利标题： Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)
- 专利标题（中）： 具有改进的音频换能器对RF电磁干扰（EMI）的RF抗扰度的移动无线通信设备
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申请号： US13742548申请日： 2013-01-16
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公开(公告)号： US08565842B2公开(公告)日： 2013-10-22
- 发明人: Lizhong Zhu , George Soliman Mankaruse , Michael Stephen Corrigan
- 申请人： Research in Motion Limited
- 申请人地址： CA Waterloo, Ontario
- 专利权人： Blackberry Limited
- 当前专利权人： Blackberry Limited
- 当前专利权人地址： CA Waterloo, Ontario
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号： H04M1/02
- IPC分类号： H04M1/02
摘要：
A mobile wireless communications device includes a housing and circuit board carried by the housing and having radio frequency (RF) circuitry and a processor operative with each other. Audio circuitry is carried by the circuit board and an audio transducer assembly, such as a speaker, has electrical contacts that electrically engage the audio circuitry for carrying audio signals between the audio circuitry and audio transducer assembly. A filter is mounted at the audio transducer assembly and reduces radio frequency (RF) electromagnetic interference to the audio transducer assembly during device operation.
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