Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hao-Feng Hung0
Date of Patent
March 20, 2007
0Patent Application Number
112544530
Date Filed
October 20, 2005
0Patent Primary Examiner
Patent abstract
The invention provides an interpolation apparatus for improving the resolution of an optical encoder. The optical encoder outputs an encoding signal, and the encoding signal corresponds to a first resolution. The interpolation apparatus comprises a comparing circuit and a lookup table circuit. The comparator receives the encoding signal and produces a plurality of comparison signals. The lookup table circuit receives a plurality of comparison signals and produces an outputted signal, wherein the outputted signal corresponds to second resolution. The second resolution is greater than the first resolution.
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