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:
Jan. 31, 2006
Filed:
Jun. 19, 2001
Jong-ding Wang, Taipei, TW;
Kai-kuang Liang, Taipei, TW;
Cheng-pin Chou, Taipei Hsien, TW;
Chen-ming Chang, Taipei, TW;
Jong-Ding Wang, Taipei, TW;
Kai-Kuang Liang, Taipei, TW;
Cheng-Pin Chou, Taipei Hsien, TW;
Chen-Ming Chang, Taipei, TW;
Primax Electronics Ltd., Taipei, TW;
Abstract
A pointing device is electrically connect to a computer. The pointing device is used to control movements of a cursor on a display device of the computer. The pointing device has a housing, a pointing unit installed inside the housing to generate pointing signals to control the movements of the cursor, a rollable device for generating rolling signals, a light source for illuminating the rollable device, and a control unit for controlling the pointing device. When the computer transmits a state signal to the pointing device, the control unit controls the light source to determine an illumination mode of the rollable device according to the state signal.