US Patent 7214931 Encoder for detecting movement of an object
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Patent abstract
An encoder for stably detecting the amount of movement of an object. The encoder includes an LED for emitting light toward a rotor plate including slits. An optical sensor generates an ON signal when the amount of emitted light passing through the slits exceeds a threshold value. A current increasing circuit increases the amount of current flowing through the LED when the optical sensor generates an ON signal.
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US Patent 07214931 Encoder for detecting movement of an object US Patent 7214931 Encoder for detecting movement of an object
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Patent Number
0721493100
Patent Number
721493100
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Official Website
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Infobox
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Patent Jurisdiction
Patent Number
072149310
Date of Patent
May 8, 2007
0Patent Application Number
110760830
Date Filed
March 9, 2005
0Official Website
Patent Primary Examiner
Edits on 23 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
072149310
Date of Patent
May 8, 2007
0Patent Application Number
110760830
Date Filed
March 9, 2005
0Official Website
Patent Primary Examiner
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US Patent 07214931 Encoder for detecting movement of an object
Infobox
Is a
Patent jurisdiction
Patent number
07214931
Date of patent
May 8, 2007
Patent application number
11076083
Date Filed
March 9, 2005
Patent primary examiner
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