Ricoh Company, Ltd.

Satoshi Kawasaki

Shinji Aoki

Yasuo Ohashi

Michitaka Fukuda

Shin Kusakari

Yusuke Matsushita

Takaaki Hiroi

Seiji Miyawaki

Kunihiro Miyauchi

Satoshi Takano

Atsushi Kokubo

A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating an indoor position of the broadcasting device to a predetermined area, wherein the broadcasting unit broadcasts range information indicating the size of the predetermined area together with the positional information.

Broadcasting device, communication terminal, and broadcasting system

A communication device communicating position information indicative of a position of the communication device with a wireless terminal, includes: a storage section configured to store the position information and a certificate to guarantee correctness of the position information, the certificate being issued upon the position information being authenticated; a sending section configured to send the position information; and a control section configured to control the sending section so that the position information stored in the storage section is sent to the wireless terminal along with the certificate.

Communication device and communication system

A communication terminal, a communication method, and a communication terminal control program stored in a non-transitory recording medium, each of which is capable of receiving location data indicating a location at which at least one transmission device of a transmission system is located, using a receiver. The receiver is activated so as to start receiving the location data, when a stop of a movement of the communication terminal is detected.

Communication terminal, communication method, and recording medium storing communication terminal control program

A broadcasting device includes a broadcasting unit configured to broadcast positional information indicating the position of the broadcasting device; and a receiving unit configured to receive, from a communication terminal receiving the broadcast positional information, terminal identification information for identifying the communication terminal and the positional information.

Broadcasting device, position management system, broadcasting method, and storage medium

A communication apparatus which transmits information on a position at which the communication apparatus is positioned is disclosed. The communication apparatus includes a detecting unit which detects one of a first signal which is detected when the communication apparatus is fixed to an installed location and a second signal which is detected when the communication apparatus is brought to a state in which it is not fixed to the installed location; a storage unit which stores therein the position information; and a control unit which erases the position information stored in the storage unit when the second signal is detected after the first signal is detected by the detecting unit.

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

An information management system is disclosed that includes a wireless terminal configured to store identification data of the wireless terminal used to identify the wireless terminal in the system; a broadcasting device configured to transmit position data which represents a position at which the device is located for a predetermined area; and a server configured to store position data indicating a position at which the terminal is located. The terminal includes a collection unit configured to collect environmental data which represents a state of an environment around the terminal; a receiving unit configured to receive the position data from the device when the terminal is located in the predetermined area; and a transmission unit configured to transmit, via the device, to the server, the identification of the terminal, the position data received from the device, and the environmental data collected by the collection unit.

Information management system, wireless terminal, and management method

A control apparatus is disclosed that may communicate with a wireless terminal and an information processing device. The control apparatus includes a first obtaining unit configured to obtain position data of the wireless terminal; a second obtaining unit configured to obtain state information about the information processing device; a determining unit configured to make a determination that the position data obtained by the first obtaining unit indicates a predetermined location and the state information obtained by the second obtaining unit indicates a predetermined state; and a transmission unit configured to transmit to the information processing device a control signal causing the information processing device to execute predetermined processing in response to the determination made by the determining unit.

Control apparatus, control method, and computer-readable recording medium that obtain position data of a wireless terminal

A transmission system, a location management system, and a transmission method, each of which transmits first location data and second location data, respectively, from a first transmission device and a second transmission device, and receives, at the second transmission device, the first location data and terminal identification data that identifies a communication terminal, from the communication terminal that receives at least the first location data.

Transmission system, location management system, and method of transmitting location data

A projection system includes a projector that projects an image onto a projection plane of a screen, and sensor units each including a photoelectric power generating unit that is installed at a predetermined position in an area in which an image is projected on the projection plane and that generates power corresponding to an intensity of projection light projected by the projector. The projector may include an image processing circuit that converts at least image data projected at the installation positions of the sensor units in image data projected on the projection plane into white image data or converts whole image data into white image data.

Growing community of inventors

Kanagawa, Japan

Satoshi Kawasaki