Three dimensional wireless pointing device

Details Three dimensional wireless pointing device Three dimensional wireless pointing device

Filed on

1997-01-08

Date issued

1999-04-06

Examiner

Mullen, Thomas

Patent Class

Computer graphics processing and selective visual display system

SubClass

Display peripheral interface input device

SubSubClass

Cursor mark position control device

Other Related Categories

345166, 3561415, G09G 508

Type

Patent

Status

active

Patent number

058925015

Description

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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