Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sovereign Peak Ventures, LLC

Matsushita Electric Ind. Co., Ltd.

Soverign Peak Ventures, LLC

Hitoshi Takai

Hidetoshi Yamasaki

Yoshio Urabe

Tsutomu Mukai

Hideki Nakahara

Kenichi Mori

Kenji Miyanaga

Koichiro Tanaka

Hiroyuki Uno

Koji Kai

Masashi Koshi

Shouichi Koga

Kazuhiro Imai

Tomohiro Kimura

Shuji Inoue

Sadashi Kageyama

Akihiro Tatsuta

Yoshio Abe

Yoshio Yasumoto

Hiroaki Asano

Kiyoshi Uchimura

Mitsujiro Matsumoto

Takumi Tanabe

Kouji Aono

Shinichiro Ohmi

Taichi Hamabe

Tomoaki Nishikido

Masaki Yamaguchi

Noriaki Morotomi

Eiji Iwasaki

Makoto Sekitoh

Yuki Anbe

Iwasaki Eiji

A wireless communication system transmits information to a communication terminal moving through a spot wireless area. In an integrated base station, an external information communication section controls communication with a server. A contents memory section stores contents received from the server. A wireless LAN communication section communicates with the communication terminal. A control section establishes connection with the communication terminal using a first connection not requiring an authentication procedure for connection with the communication terminal or using a second connection requiring the authentication procedure for connection with the communication terminal. An access control (restriction) section permits access from the communication terminal to the contents memory section and prohibits access to the server when a type of connection with the communication terminal is the first connection and permits access from the communication terminal to the contents memory section and to the server in the case of the second connection.

Wireless base station and wireless communication terminal and wireless communication system

An antenna device includes: a first conductor layer; a second conductor layer located opposite to the first conductor layer; and a third conductor layer located opposite to the second conductor layer. The first conductor layer includes: a feed element; a first grounding element located next to the feed element in a first direction and grounded; and a parasitic element located along the feed element and the first grounding element and insulated from the feed element and the first grounding element. The second conductor layer includes: a floating element located opposite to the feed element and insulated from the first conductor layer; and a second grounding element located opposite to the first grounding element and next to the floating element and grounded. The third conductor layer includes a third grounding element grounded.

Antenna device and electrical appliance

A wireless module includes: a substrate; a ground pattern formed on the substrate; a heat generating component mounted on the substrate and connected to the ground pattern; a pattern antenna including a grounding part connected to the ground pattern and a power feeding part fed with power from the heat generating component, the pattern antenna being formed on the substrate; and a conductive base plate electrically connected to the ground pattern and disposed opposite to the pattern antenna.

Wireless module and image display device

A wireless module includes a substrate, a ground pattern disposed on the substrate, a first antenna, a second antenna, and a base plate that is conductive. The first antenna is disposed between one end of the substrate and the ground pattern, and includes a grounding part and a first power feeding part, the grounding part is connected to the ground pattern, and the first power feeding part is fed with a first signal. The second antenna is disposed between the other end of the substrate and the ground pattern, and includes a second power feeding part fed with a second signal. The base plate includes a first opposed portion that faces the first antenna, a second opposed portion that faces the second antenna, and a third opposed portion that faces the ground pattern and is short-circuited to the ground pattern. The base plate also has, on the third opposed portion, a short-circuit point at which the base plate and the ground pattern are short-circuited to each other. The short-circuit point is disposed on the third opposed portion at a position nearer to the first opposed portion than to the second opposed portion.

Provided is a wireless communication system transmitting information to a communication terminal moving through a spot wireless area. In an integrated base station, an external information communication section controls communication with a server. A contents memory section stores contents received from the server. A wireless LAN communication section communicates with the communication terminal. A control section establishes connection with the communication terminal using a first connection not requiring an authentication procedure for connection with the communication terminal, or using a second connection requiring the authentication procedure for connection with the communication terminal. An access control (restriction) section permits access from the communication terminal to the contents memory section and prohibits access to the server when a type of connection with the communication terminal is the first connection, and permits access from the communication terminal to the contents memory section and to the server in the case of the second connection.

An antenna includes: a radiating element that is formed of a conductor and radiates electromagnetic waves when supplied with electrical power; and a parasitic element that is (i) formed of a conductor, (ii) provided near the radiating element so as to be electromagnetically coupled with the radiating element, (iii) provided in a plane substantially perpendicular to a plane including the radiating element, and (iv) guides the electromagnetic waves without being supplied with electrical power.

Antenna and electric device

A wireless communication system transmits information requested by a wireless communication terminal to the wireless communication terminal moving through a spot wireless area. In a wireless base station, an external information communication control section controls communication with a server. A contents memory stores at least a part of contents received from the server. A wireless communication section communicates with the communication terminal using a predetermined communication method. A control section establishes connection with the communication terminal using a first connection which does not require an authentication procedure, or using a second connection which requires the authentication procedure. An access control (restriction) section permits access from the communication terminal to the contents memory and prohibits access to the server when a type of connection is the first connection, and permits access from the communication terminal to the contents memory and to the server in the case of the second connection.

Wireless base station, wireless communication terminal, and wireless communication system

The diversity reception device includes an antenna switching unit configured to select and switch to a determined chain number of antennas out of a plurality of antennas; and an antenna interchange control unit configured to control the antenna switching unit to interchange an antenna. The antenna interchange control unit compares a carrier-to-noise ratio measured by a demodulation circuit of a demodulation unit of each chain, controls the antenna switching unit to sequentially switch connection with an antenna of a chain having a lowest carrier-to-noise ratio to connection with antennas connectable to the chain, and interchanges the antenna of the chain having a lowest carrier-to-noise ratio with an antenna estimated to have a highest carrier-to-noise ratio on the basis of the input level measured by the level detection unit or an antenna having a highest input level measured by the level detection unit among the connection-switched antennas.

Diversity reception device

A wireless transmission system performs multi-station simultaneous transmission of data. The wireless transmission system includes wireless stations for transmitting and receiving data. Transmitter-side wireless stations, a multipath channel, and receiver-side wireless stations constitute a system for path diversity. At least one wireless station among the wireless stations determines, depending on a response packet with respective to a multi-station simultaneous transmission request packet transmitted by itself or other stations, delay amounts from a reference timing during multi-station simultaneous transmission in the wireless transmission system, and symbol waveforms that are a basis for a modulated waveform. A difference between each delay amount is set to be larger than or equal to a predetermined delay resolution for each symbol waveform, and a difference between maximum and minimum values of the delay amounts is set to be smaller than or equal to a predetermined maximum delay.

Wireless transmission system, and wireless station and method used for same

Growing community of inventors

Osaka, Japan

Hitoshi Takai