Canon Kabushiki Kaisha

Mitsuhiro Inagaki

Koji Aoki

Koichi Morishita

Shiori Wakino

Takeshi Hiraoka

Eiki Aoyama

A semiconductor integrated circuit includes a first circuit connected to a power supply line, a determination portion configured to determine whether a voltage drop in the power supply line affects an operation of the first circuit, and a power supply voltage control portion configured to control change of a power supply voltage value on the basis of a determination result of the determination portion.

Circuit and method for controlling power supply voltage based on predicted voltage drop

A bus system comprises a plurality of bus modules each for performing data transfer between a master module and a slave module. A power control module controls transition to a power-saving mode of each bus module based on communication with the plurality of bus modules. The power control module comprises a plurality of control modules corresponding to the plurality of bus modules respectively. Each control module performs communication with the corresponding bus module using power control signals.

Growing community of inventors

Yokohama, Japan

Mitsuhiro Inagaki