Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2011-05-31
2011-05-31
Le, Thanh C (Department: 2618)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C379S406010
Reexamination Certificate
active
07953456
ABSTRACT:
An electronic device includes first and second speakers, a microphone, and circuitry configured to generate first and second audio signals in response to a source audio signal, to play the first audio signal over the first speaker, and to play the second audio signal over the second speaker. The first and second audio signals are configured, and the first and second speakers are positioned, so that the first audio signal output by the first speaker and the second audio signal output by the second speaker combine destructively at the microphone.
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Eaton William Chris
Romesburg Eric Douglas
Le Thanh C
Myers Bigel & Sibley & Sajovec
Sony Ericsson Mobile Communication AB
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