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Adjustment operating apparatus

  • US 5,745,057 A
  • Filed: 09/24/1996
  • Issued: 04/28/1998
  • Est. Priority Date: 09/25/1995
  • Status: Expired due to Term
First Claim
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1. An adjustment apparatus, comprising:

  • operation means having a knob for adjusting a sound volume so as to increase or decrease said sound volume by rotating said knob clockwise or counterclockwise, respectively, and for producing an adjustment change signal in proportion to a speed and a direction of rotation of said knob; and

    control means for generating a sound volume adjustment control signal for adjusting and controlling said sound volume in response to said adjustment change signal from said operation means, wherein said control means varies a first rate of change at which said sound volume is increased and a second rate of change at which said sound volume is decreased in accordance with said speed and said direction of rotation of said knob, and wherein said second rate of change is equal to said first rate of change when said speed of rotation is less than a predetermined speed, and wherein said second rate of change is greater than said first rate of change when said speed of rotation is greater than or equal to said predetermined speed.

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