×

Position indicating device for a digital computer

  • US 4,994,795 A
  • Filed: 12/08/1988
  • Issued: 02/19/1991
  • Est. Priority Date: 12/08/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. An input device for use with a digital computer having a video display, for displaying the position of an indicator thereon and responsive to cursor key signals for moving said indicator, said device comprising:

  • first transducing means for generating a first motion signal in response to said input device moving in a first direction;

    second transducing means for generating a second motion signal in response to said input device moving in a second direction substantially perpendicular to said first direction;

    a plurality of keys including a numeric keypad and a plurality of control keys for supplying input signals to said input device; and

    means for processing said first and second motion signals and said input signals by supplying said input signals to said digital computer in the event said input signals are supplied to said input device, and for supplying input signals to said digital computer corresponding to the direction and amount of motion of said input device from said first and second motion signals, in the event no input signal from the plurality of keys is supplied to said input device.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×