×

Wireless cursor control system

  • US 4,654,648 A
  • Filed: 12/17/1984
  • Issued: 03/31/1987
  • Est. Priority Date: 12/17/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. A position control system adapted to control cursor movement on a video display terminal, said system comprising:

  • (a) a wireless movable steering means adapted to emit periodic acoustic signals;

    (b) tracking means adapted to receive said acoustic signals and determine the position of said steering means;

    wherein said tracking means comprises a plurality of acoustic receivers adapted to sense said acoustic signals;

    wherein said tracking means further comprises processing means adapted to measure the time difference of the sensing of said acoustic signals by said receivers and being further adapted to convert said time difference into a coordinate position of said steering means; and

    (c) communication means adapted to communicate said position of said steering means to said video display terminal;

    wherein said steering means is adapted to communicate with said tracking means solely by means of acoustical signals.

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