Headset control system for operating a microcontroller based device
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United States of America Patent
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Oct 22, 2002
Issued Date -
N/A
app pub date -
May 6, 1999
filing date -
Aug 29, 1997
priority date (Note) -
Expired
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Abstract
A headset control system for operating a microcontroller based device includes a microphone, a first and a second speaker, and a user operated switch. The switch selectively disables said first speaker in a first state or said microphone in a second state. A momentary switch creates patterns of momentary switching from one of a first, a second and a third state to at least one other state and back. A switch detector comprises a plurality of comparators to implement threshold logic and produces a signal indicating the respective states of said user-operated switch and said momentary switching means. A microcontroller responsive to said switch detector includes a means to differentiate between different switching patterns of said momentary switching means and initiates respective function as a function of a pattern of momentary switching and state of said user-operated switch and current operational mode.
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