Canon Kabushiki Kaisha

Mitsuhide Murofushi

Yuki Nakajima

Kenichi Fujii

Yasuhiro Shimura

Yu Tanaka

Minoru Hayasaki

Junya Kobayashi

Keisuke Nakano

Kenichi Nakao

Tomoya Uehara

A communication apparatus detects a wireless device and calculates a relative position of the detected wireless device with respect to a reference wireless device to be a reference in identifying a position based on a movement amount of the communication apparatus from when the reference wireless device is detected by the communication apparatus. The communication apparatus associates the calculated relative position, identification information about the detected wireless device, and identification information about the reference wireless device.

Communication apparatus, information processing apparatus, and position information management method

An item inspection system includes a portable system that reads information from a wireless device, a position estimation unit that estimates a position of the portable system based on reading of identification information from a first wireless device installed at a known position, and an inspection unit that inspects whether the item exists in a specific place based on reading of identification information from a second wireless device attached to an item. The portable system selectively operates in a first mode for position estimation and a second mode for the inspection. The inspection unit guides a user based on a position of the item and an estimated position of the portable system, and determines that the item exists in the specific place when the identification information has been read from the second wireless device in the second mode.

Item inspection system, inspection method, and information processing apparatus

A reader apparatus detects a communication object by radiating radio waves and receiving a response, determines a change in a state based on at least one of a position and an inclination of the reader apparatus, and controls power consumed in the reader apparatus by setting a length of a first period, in which a reduction of power consumed in the detection is not performed, and a length of a second period, in which a reduction of the power is performed, based on the change in the state.

Reader apparatus, control method, and storage medium

The power supply apparatus includes a rectifying and smoothing unit configured to rectify and smooth an AC voltage of an AC power supply, a transformer having a primary winding, first and second secondary windings, a detecting unit connected to the second secondary winding, the detecting unit configured to detect a second voltage according to a voltage output from the rectifying and smoothing unit, and a first control unit configured to control a state of the load based on a result detected by the detecting unit.

Power supply apparatus and image forming apparatus

The power supply apparatus includes a detecting unit that has a first detecting device, a second detecting device and a third detecting device, detects a current flowing into the primary winding, and outputs a voltage corresponding to the current, and a control unit that controls a switching operation of the switching element, an output voltage which the detecting unit outputs to the control unit includes a first output voltage at which the control unit stops an operation of the switching element at a time of the second state, a second output voltage at which the control unit stops the operation of the switching element at a time of the first state, a third output voltage at which the second detecting device is brought into a conducting state, and a fourth output voltage at which the third detecting device is brought into a conducting state.

The power supply apparatus includes a first control part that controls a switching operation of a first converter, a second control part that controls a switching operation of a second converter, a zero crossing circuit that outputs a zero crossing signal of a voltage to be input; and a voltage supply part that supplies a DC voltage obtained by rectifying an output of an auxiliary coil of a transformer of the first converter to the first control part, the second control part, and the zero crossing circuit. When the first converter stops, the supply of the DC voltage to the second control part and the zero crossing circuit is stopped to reduce a power consumption.

Growing community of inventors

Tagata-gun, Japan

Mitsuhide Murofushi