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Switching apparatus for electronic devices

  • US 5,250,930 A
  • Filed: 09/09/1991
  • Issued: 10/05/1993
  • Est. Priority Date: 09/12/1990
  • Status: Expired due to Fees
First Claim
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1. An electronic device for controlling movement of an image on a display unit, comprising:

  • a stop pushbutton generating a stop signal when pressed and having a top side, a bottom side, a right side, and a left side;

    an upward pushbutton generating an upward signal when pressed and having a bottom side, a right side, and a left side, the bottom side of the upward pushbutton positioned adjacent to the top side of the stop pushbutton;

    a downward pushbutton generating a downward signal when pressed and having a top side, a right side, and a left side, the top side of the downward pushbutton positioned adjacent to the bottom side of the stop pushbutton;

    a rightward pushbutton generating a rightward signal when pressed and having a top side, a bottom side, and a left side, the left side of the rightward pushbutton positioned adjacent to the right side of the stop pushbutton;

    a leftward pushbutton generating a leftward signal when pressed and having a top side, a bottom side, and a right side, the right side of the leftward pushbutton positioned adjacent to the left side of the stop pushbutton, the upward signal, the downward signal, the rightward signal, and the leftward signal forming a set of linear signals;

    a first non-linear pushbutton generating a first non-linear signal and having a bottom side and a right side, the bottom side of the firs non-linear pushbutton positioned adjacent to the top side of the leftward pushbutton and the right side of the first non-linear pushbutton positioned adjacent to the left side of the upward pushbutton;

    a second non-linear pushbutton generating a second non-linear signal and having a bottom side and a left side, the bottom side of the second non-linear pushbutton positioned adjacent to the top side of the rightward pushbutton and the left side of the non-linear pushbutton positioned adjacent to the right side of the upward pushbutton;

    a third non-linear pushbutton generating a third non-linear signal and having a top side and a right side, the top side of the third non-linear pushbutton positioned adjacent to the bottom side of the leftward pushbutton and the right side of the third non-linear pushbutton positioned adjacent to the left side of the downward pushbutton;

    a fourth non-linear pushbutton generating a fourth non-linear signal and having a top side and a left side, the top side of the fourth non-linear pushbutton positioned adjacent to the bottom side of the rightward pushbutton and the left side of the fourth non-linear pushbutton positioned adjacent to the right side of the downward pushbutton, the first non-liner signal, the second non-linear signal, the third non-linear signal, and the fourth non-linear signal forming a set of non-linear signals;

    pushbutton assembly means for supporting the stop pushbutton, the upward pushbutton, the downward pushbutton, the rightward pushbutton, the leftward pushbutton, the first non-linear pushbutton, the second non-linear pushbutton, the third non-linear pushbutton, and the fourth non-linear pushbutton;

    a substrate having a plurality of electrical contacts, each electrical contact corresponding to one pushbutton, wherein the electrical contact engages its corresponding pushbutton when the pushbutton is pressed; and

    control circuit means or receiving the stop signal and for halting a movement of the image as it moves across the display unit in response thereto, for receiving each of the linear signals and for moving the image linearly across the display unit in response thereto, and for receiving each of the non-linear signals and for moving the image non-linearly across the display unit in response thereto.

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