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:
Feb. 14, 2012
Filed:
Mar. 09, 2009
Fei Gao, Shenzhen, CN;
Wen-haw Tseng, Taipei Hsien, TW;
Fei Gao, Shenzhen, CN;
Wen-Haw Tseng, Taipei Hsien, TW;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A ball mouse includes a ball, two metallic encoder disks each defining a plurality of through holes, two drive rollers engaged with the ball and transferring motion of the ball to respective encoder disks, two electromagnetic signal generators for generating two electromagnetic signals, and two induced signal generators for generating two induced signals according to respective electromagnetic signals. One of the two electromagnetic signals is transmitted to one of the induced signal generators through the plurality of through holes of one of the encoder disks. The other of the two electromagnetic signals is transmitted to the other of the induced signal generators through the plurality of through holes of the other of the encoder disks.