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Headset control system for operating a microcontroller based device

  • US 6,470,197 B1
  • Filed: 05/06/1999
  • Issued: 10/22/2002
  • Est. Priority Date: 08/29/1997
  • Status: Expired due to Fees
First Claim
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1. A headset control system for operating a microcontroller based device comprising;

  • a) a microphone;

    b) a first and a second speaker;

    c) a user operated switch for selectively activating said microphone in a first state or deactivating said microphone in a second state;

    d) a resiliently biased momentary switching means for creating patterns of momentary switching from a rest position to at least one depressed position and back;

    e) a switch detector comprising plurality of comparators to implement threshold logic with more than two logic levels, producing a signal indicating the respective states of said user operated switch and said momentary switching means; and

    f) a control means responsive to said switch detector including a means to differentiate between different switching patterns of said momentary switching means for initiating 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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