Audio handheld device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 1, 2004
app pub date -
Oct 28, 2003
filing date -
Dec 21, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An audio handset comprises a body (10) with an earphone (11) and a microphone (12). The microphone (12) has two ports on opposite faces (one of which, A, is seen in FIG. 1) and is mounted on the body (10) by hinge arms (14) to be displaceable, in use, between open and closed positions. In the open position, both ports are available to receive and respond to audible sound and the microphone functions in a noise-cancelling differential mode. In the closed position, one of the ports (A) bears against a sealing face (15) of the body rendering that port unresponsive to audible sound, and the microphone functions in a single port pressure mode.
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