Shimano Inc.

Masako Itsukashi

Makoto Usui

Akinori Hashimoto

Yoshiyuki Kasai

Akihiro Nozaki

Shota Inoue

Yasuhiro Tsuchizawa

Jun Gao

Yuki Kataoka

A wireless communication device for a human-powered vehicle comprises a wireless communicator and a controller. The wireless communicator is configured to wirelessly transmit a connection demand signal to establish a wireless connection between the wireless communicator and an additional wireless communicator. The controller is configured to control the wireless communicator to wirelessly transmit the connection demand signal at first frequency for a first period. The controller is configured to control the wireless communicator to wirelessly transmit the connection demand signal at second frequency which is different from the first frequency after a passage of the first period.

Wireless communication device for transmitting connection requests at different frequencies

A wireless communication device for a human-powered vehicle comprises a wireless communicator and a controller. The wireless communicator has a first communication mode in which at least a first communication protocol is used and a second communication mode in which a second communication protocol different from the first communication protocol is used. The controller is configured to set the wireless communicator with one of the first communication mode and the second communication mode.

Wireless communication device having plural protocols and pedaling sensing device

A bicycle transmission device is basically configured to improve the detection accuracy of the tilt angle of the road surface. The bicycle transmission device has a transmission for changing the gear ratio of the bicycle, and a tilt sensor disposed on the transmission and that outputs a signal that reflects the inclination of the transmission.

Bicycle transmission device

A bicycle transmission control apparatus is provided that can perform a shift control according to the traveling environment of the bicycle. The bicycle transmission control apparatus includes a controller that operates a transmission according to a parameter that represents a traveling state of a bicycle and predetermined shifting conditions. The controller sets the predetermined shifting condition based on the parameter representing a running state of the bicycle and on a tilt angle of the bicycle.

Bicycle transmission control apparatus

A bicycle transmission control device is basically provided with a transmission controller that is programmed to switch between a first control state and a second control state. The bicycle transmission control device operates in accordance with the first control state for controlling a transmission based on a first signal that is input from a first detector, which detects a rotation of a crank. The bicycle transmission control device operates in accordance with the second control state for controlling the transmission based on a second signal that is input from a second detector, which detects a value reflecting a bicycle speed.

Growing community of inventors

Osaka, Japan

Masako Itsukashi