Combined analog and digital derailleur position processing apparatus
AssigneeShimano Inc.
InventorsMasahiko Fukuda, Haruyuki Takebayashi
Life of this patent
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Abstract
A derailleur position processing apparatus includes a derailleur moving member that moves with the derailleur; an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog position signal in response to movement of the derailleur moving member; and a digital signal providing mechanism operatively coupled to the derailleur moving member, wherein the digital signal providing mechanism provides a digital position signal in response to movement of the derailleur moving member.
Claims20
A derailleur position processing apparatus comprising:
- a derailleur moving member that moves with the derailleur;
- an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog position signal in response to movement of the derailleur moving member;
- and
- a digital signal providing mechanism operatively coupled to the same derailleur moving member as the analog signal providing mechanism, wherein the digital signal providing mechanism provides a digital position signal in response to movement of the derailleur moving member.
A method of processing a position of a derailleur that includes a motor for moving a derailleur moving member, wherein the method comprises the steps of:
- providing an analog position signal in response to movement of the derailleur moving member;
- providing a digital position signal in response to movement of the derailleur moving member;
- storing, in analog position memory, a plurality of analog position values corresponding to a plurality of positions of the derailleur moving member;
- storing, in a digital position memory, a plurality of digital position values corresponding to a plurality of positions of the derailleur moving member;
- controlling the motor in accordance with at least one of the analog position values stored in the analog position memory and the digital position values stored in the digital position memory;
- and
- updating on of the analog position memory and the digital position memory using the values stored in the other one of the analog position memory and the digital position memory when the motor is moved in a accordance with the values stored in the other one of the analog position memory and the digital position memory.
Dependencies are inferred from the claim text.