Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kazuhiro Takeda0
Date of Patent
July 24, 2007
Patent Application Number
10145933
Date Filed
May 14, 2002
Patent Primary Examiner
Patent abstract
An apparatus for determining when to shift a bicycle chain from a first sprocket having a first number of teeth to a second sprocket having a second number of teeth comprises a memory for storing a reference value, and a processor that determines a shift value corresponding to a shift speed for shifting the chain from the first sprocket to the second sprocket by multiplying the reference value by one of the first number of teeth and the second number of teeth and dividing by the other one of the first number of teeth and the second number of teeth.
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