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.

Date of Patent:
Aug. 12, 2014

Filed:

Sep. 09, 2011
Applicants:

Po Chang, New Taipei, TW;

Yi-chung Hsu, New Taipei, TW;

Inventors:

Po Chang, New Taipei, TW;

Yi-Chung Hsu, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/033 (2013.01); G09G 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Disclosed is an indexing device. A first sensing unit, a second sensing unit, and a control unit are primarily disposed in the indexing device. The control unit couples to the first sensing unit and the second sensing unit. The control unit receives a first move detection signal outputted by the first sensing unit, and receives a second move detection signal from the second sensing unit. The variance of the first move detection signal and/or the second move detection signal is referred to compute a cursor control signal. Further, the first sensing unit or the second sensing unit is slidably disposed in the device's casing. This movable sensing unit allows the cursor control correlated to the moving indexing device more accurate, more stable and/or faster responsive to the user's operation.


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