The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1999
Filed:
Sep. 30, 1997
Heng-Chun Ho, Taipei, TW;
Primax Electronics Ltd., Taipei Hsien, TW;
Abstract
The present invention discloses a pointing control system for controlling rotations of an object within a three dimensional view. The three dimensional view comprises first axis and second axes which are perpendicular to each other. The pointing control system comprises an image displaying device for displaying the three dimensional view, a computer electrically connected to the displaying device and a pointing device electrically connected to the computer. The computer comprises a program for controlling image display of the displaying device and rotations of the object within the three dimensional view. The pointing device comprises a housing and a first pointing controller installed in the housing. The first pointing controller comprises: a ball rotatably installed inside of the housing; a first rod and a second rod rotatably installed in the housing and attached to the ball for interacting with the ball to detect rotations of the ball in two different directions; a first angle displacement detector for detecting rotations of the first rod and generating a corresponding first angle displacement signal; and a second angle displacement detector for detecting rotations of the second rod and generating a corresponding second angle displacement signal. When the program receives the first angle displacement signal, the program will transform the first angle displacement signal into a first rotation angle and then rotate the object along the first axis about the first rotation angle. And when the program receives the second angle displacement signal, the program will transform the second angle displacement signal into a second rotation angle and then rotate the object around the second axis for the second rotation angle.