04578674 is referenced by 196 patents and cites 8 patents.

A method and apparatus for wireless cursor position control is disclosed herein. The apparatus comprises a wireless cursor position device and a separate control base whereby the direction and velocity of motion of the position device is monitored by the control base and used said direction and velocity of motion is to calculate the relative motion of the cursor on the display system. The method and apparatus operates by transmitting and receiving ultrasonic and infrared signals between the position device and control base and thereby calculating the movement of the position device from an initial location by measurement doppler shift of the signals. An output signal to the display system is then generated to move the cursor in correspondence with the motion of the position device.

Title
Method and apparatus for wireless cursor position control
Application Number
6/486630
Publication Number
4578674
Application Date
April 20, 1983
Publication Date
March 25, 1986
Inventor
Gregory A Flurry
Austin
TX, US
David F Bantz
Chappaqua
NY, US
David C Baker
Austin
TX, US
Agent
Alexander Tognino
George E Clark
Assignee
International Business Machines Corporation
NY, US
IPC
G09G 1/00
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