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:
Jun. 21, 2005
Filed:
Mar. 03, 2003
Ching-chuan Chao, Taipei, TW;
Chung-wen Hsu, Kaohsiung, TW;
Ching-Chuan Chao, Taipei, TW;
Chung-Wen Hsu, Kaohsiung, TW;
Abstract
The purpose of the present invention is to reduce power consumption caused by controlling circuit in transmitting/receiving process between tablet system and cord less-battery less pointer apparatus. The present invention provides multi-channel switches set produced in semi-conductor process to replace traditional analog switch and tri-state element used in prior art as signal transmitting/receiving selector of inductive loops of tablet, which can simplify controlling circuit, enhance power efficiency of signal transmitting/receiving between tablet system and cord less and cell less pointer apparatus, and increase speed of response of signal transmitting/receiving between tablet and cord less-battery less pointer apparatus.