National Institute of Information and Communications Technology, Incorporated

Oki Electric Industry Co., Ltd.

Advanced Telecommunications Research Institute International

Bing Zhang

Youiti Kado

Seiji Igi

Takashi Matsuda

Sadao Obana

Masanori Nozaki

Naoto Kadowaki

Ryu Miura

Toshinori Kagawa

Azman Osman Lim

Kiyohiko Hattori

Oyunchimeg Shagdar

Mehdad Nori Shirazi

To provide a power supply system to a two-dimensional communication sheet that can prevent generation of leakage power without lowering a power efficiency, there are included a two-dimensional communication sheetthat has an dielectric layer, a first conductor layercovering a rear surface of the dielectric layer, and a second conductor layercovering a front surface of the dielectric layerand composed of a mesh-shaped wiring pattern; and a power supply portfor supplying power to the two-dimensional communication sheet, the power supply porthaving a first power supply plateprovided separately at a rear side of the first conductor layer, a second power supply plateprovided at a position opposite to the first power supply plateseparately at a front side of the second conductor layer, a first power supply bodyelectrically connected with the first power supply plate, and a second power supply bodyelectrically connected with the second power supply plate

System for supplying electric power to two-dimensional communication sheet, and feeding port

A switch circuit connects a switch (SW) to a connector when a connector receives a signal and connects the switch (SW) to a terminal when the connector receives power. The connector receives a signal and power transmitted at the same frequency, outputs the received signal to a communication unit through an attenuator, and outputs the received power to a power receiving unit. The communication unit carries out reception processing to the signal and outputs the processed signal to a computer. The power receiving unit carries out reception processing to the power and stores the processed power. The power receiving unit supplies the communication unit or the computer with the stored power.

Communication device and two-dimensional communication system using the same

A radio device, which is the source, transmits a route request packet (RREQ) to a radio device. In response to the route request packet (RREQ), the radio device transmits to the radio device a route setup packet (RSET) including a route Radio Device Radio Device Radio Device Radio Device by looking-up topology information (TPIF). In response to the route setup packet (RSET), the radio device produces a route notification packet (RNTF) and transmits the produced route notification packet (RNTF) to radio devices, and. In response to the route notification packet (RNTF), the radio device, which is the destination, produces a route reply packet (RREP) and transmits the produced route reply packet (RREP) to the radio device, which is the source.

Wireless network system carrying out multihop wireless communication between source and destination

A source terminal measures characteristics of the path at the source terminal itself, produces a characteristics-measurement packet, and transmits the produced characteristics-measurement packet to a relay terminal. Upon receiving the characteristics-measurement packet, the relay terminal measures characteristics of the path at the relay terminal itself, renews the characteristics of the path included in the characteristics-measurement packet using the measured characteristics of the path, and transmits the characteristics of the wireless communication path to the destination terminal. The source terminal produces an admission-request packet and transmits the packet to the destination terminal. Upon receiving the admission-request packet, the destination terminal allows or rejects the traffic quality maintenance request according to the characteristics of the wireless communication path. The allowance or rejection of the quality maintenance request is transmitted to the source terminal with the admission-reply packet by the destination terminal.

Multi-hop wireless network system

Growing community of inventors

Koganei, Japan

Bing Zhang