U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

US Patent Application 20060223570 - Mobile wireless communications device having improved RF immunity of audio transducers to electromagnetic interference (EMI)

Application 20060223570 Filed on April 4, 2005. Published on October 5, 2006

Inventors

Assignee

US Class

Attorney, Agent or Firm

International Class

H04M 1/00

Issued Patent Number:

7353041


Abstract text


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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