Three dimensional wireless pointing device

Details Three dimensional wireless pointing device Three dimensional wireless pointing device

1997-01-08

1999-04-06

Mullen, Thomas

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345166, 3561415, G09G 508

Patent

active

058925015

ABSTRACT:
Three dimensional wireless pointing device for calculating coordinates and controlling a position of a cursor in a three dimensional space is disclosed, including a transmission side having a plurality of ultrasonic wave generating parts and a single infrared ray emitting part or a single ultrasonic wave generating part and a plurality of infrared ray emitting parts arranged in a certain axis direction at certain angles and a reception side having a plurality of infrared ray receiving sensors and a single ultrasonic wave receiving sensor arranged to cross the ultrasonic wave generating part(s) and the infrared ray emitting part(s) in the transmission side at a right angle, thereby to measure intensities of the infrared ray(s) and the ultrasonic wave(s) varied depending on direction of pointing and calculate a difference of relative arrival times of the infrared ray and the ultrasonic wave to obtain coordinate values of a position in a three dimensional space, whereby a position of cursor or menu, which is a control objective, can be controlled using the obtained coordinate values.

REFERENCES:
patent: 5440114 (1995-08-01), Barbier et al.
patent: 5566087 (1996-10-01), Vdigt et al.
patent: 5574479 (1996-11-01), Odell
patent: 5598187 (1997-01-01), Ide et al.
patent: 5710623 (1998-01-01), Kim

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