Patent ID: 11952080
Assignee: TIEN HSIN INDUSTRIES CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A bicycle derailleur system adapted to be mounted to a bicycle, comprising:
a controller;
a camera electrically connected to the controller and adapted to capture a video along a moving direction of the bicycle;
a derailleur assembly electrically connected to the controller and adapted to output a chain shifting signal to the controller to shift a chain of the bicycle to a desired one of sprockets, wherein the chain shifting signal comprises an information of the desired one of the sprockets of the bicycle; and
a memory device electrically connected to the controller;
wherein when the controller receives the chain shifting signal, the controller processes the video captured by the camera to obtain a section of the video from a first predetermined time before the chain shifting signal is received to the second predetermined time after the chain shifting signal is received and stores the section of the video along with the information of the desired one of the sprockets into the memory device.