Nissan Motor Company Limited

Kabushiki Kaisha Toshiba

Fujitsu Corporation

Furuya Metal Co., Ltd.

Takashi Ueno

Toshimi Abo

Tetsuro Itakura

Akio Sumizawa

Hiroshi Tanimoto

Tadashi Arai

Hiroshi Yoshida

Takafumi Yamaji

Kazutoshi Kobayashi

Hironobu Oshika

Katsunori Miyamura

Akira Yasuda

Shuichi Obayashi

Mikio Koyama

Takeshi Ueno

Masao Sakata

Ichiro Seto

Hiroshi Tsurumi

Koji Horisaki

Toshitada Saito

Sadao Takase

Takashi Kaneko

Takafumi Ohishi

Toshiyuki Yamagishi

Hidetoshi Kanegae

Ryuichi Fujimoto

Toshiro Muramatsu

Akito Yamamoto

Takeshi Akatsuka

Takeshi Miyaba

Minoru Tomikashi

Masayuki Takada

Kiyotaka Matsue

Tadaaki Tanaka

Shouichi Kimura

Masaaki Nagasaka

Keita Kobayashi

Hiroshi Horiguchi

Akira Hino

Ricardo Wong

Yoshiaki Otake

Masamitsu Furukawa

Masao Masumo

Toru Takahashi

Shoichi Kimura

In one embodiment, a human body communication apparatus includes a first human body communication terminal carried by a person, a second human body communication terminal and an authentication unit included in the first or second human body communication terminal. The first human body communication terminal includes a first detection unit to detect first living body physiological information of the carrying person. The second human body communication terminal includes a human body contact sensor and a second detection unit to detect second living body physiological information of the person who touches the human body contact sensor. The authentication unit acquires the first and second living body physiological information and determines a correlation between the first and second living body physiological information to permit communication between the first and second human body communication terminals in accordance with the correlation.

Human body communication apparatus and authentication method of the same

The present invention relates to a communication system, and the invention specifically provides a contents server that appropriately stores media contents from group users in a PoC Service and a conference service. The contents server includes: a recording unit that records media information from plural users in a communicatable state participating in a predetermined group, for each group; a detecting unit that detects a communicatable state or an uncommunicatable state of each participating user, at each predetermined time; and a deleting unit that deletes confirmed media information already recorded in the recording unit, upon detecting that all the participating users are in the communicatable state.

Contents server and contents server system

A radar detection device of an example of the present invention includes a section which increments a value of a counter when a first difference value between a receiving power value in detecting an edge of a received signal of wireless communication and a receiving power value after a first time elapses since the edge detection is more than a first threshold, and a section which determines whether a second difference value between the value of the counter and a value of the counter before a third time is not lower than a second threshold in each of passage of a second time, and determines that radar is detected when the second difference value is not lower than the second threshold.

Radar detection device used in wireless communication device

A common resistor is connected to load impedances that convert differential currents respectively generated by current sources into differential voltages. A constant current generated by the current sources is supplied to the common resistor to cause the common resistor to generate an in-phase current and set a common potential.

Voltage converting circuit and radio communication apparatus

A storing unit stores a regular telephone number of a user and a provisional telephone number corresponding to the regular telephone number. An acquiring unit acquires a provisional telephone number of a receiver and a regular telephone number of a caller who called at the provisional telephone number of the receiver. A searching unit searches a regular telephone number corresponding to the provisional number of the receiver from the storing unit. A call establishing unit establishes a call between the caller and the receiver corresponding to the regular telephone number searched.

Method and apparatus for managing telephone number, and computer product

A variable gain amplifier device comprises a variable gain amplifier circuit which amplifies a difference between an input signal and a feedback signal to output an output signal, a feedback circuit which supplies the feedback signal to the variable gain amplifier circuit, and a controller which controls the variable gain amplifier circuit and the feedback circuit to decrease a cutoff frequency of the feedback circuit according to increase of a gain of the variable gain amplifier circuit or vice versa.

Variable gain amplifier

A variable gain amplifier comprises a main amplifier circuit whose gain is controllable and which amplifies a difference signal between an input signal and a feedback signal, a feedback amplifier circuit whose gain is controllable and which amplifies an output signal of the main amplifier circuit, and a gain control circuit which complementarily control the gain of the main amplifier circuit and the gain of the feedback amplifier circuit.

The object of the invention is to provide a reflector in which a reduction in high reflection factor of Ag is restricted, a stable wheatherability can be attained in a continuous manner even if it is exposed in a severe environment of high temperature and high humidity and further a high practical effect with the connecting characteristic being effectively enforced can be attained and also a high reliability is provided. The alloy reflective film made of AgPdCu alloy or AgPdTi alloy with Ag being applied as major component, with Pd being added in a range of 0.5 to 3.0 wt %, with either Cu or Ti, for example, in Al, Au, Pt, Cu, Ta, Cr, Ti, Ni, Co, Si as the third element being added in a range of 0.1 to 3.0 wt % is formed on the substrate in a predetermined film thickness (nm). As its pre-treatment, the organic ground film is applied on the substrate and the reflective film is formed on the film to enforce effectively the connecting characteristic.

Reflector

A receiver having a function of a direct current offset, and including a receiving section for receiving a radio frequency signal, an analog signal processing section for amplifying, band-converting and frequency-converting an analog signal inputted from the receiving section, and an AD converting section for converting an output of the analog signal processing section from an analog signal to a digital signal. Also included is a digital signal processing section for processing the digital signal converted by the DC converting section. The receiver further includes an offset detecting element, provided in the digital signal processing section, for detecting a direct current offset signal produced in the receiving section or a frequency converting section, an offset holding element, provided in the digital signal processing section, for holding the direct current offset signal detected by the offset detecting element, a DA converting section for converting the direct current offset signal detected by the digital signal processing section into an analog signal, and a first offset correcting element, provided in the analog signal processing section, for correcting the analog signal on the basis of the direct current offset signal converted by the DA converting section into the analog signal.

Receiver having DC offset decreasing function and communication system using the same

A mobile telephone holding device is provided for establishing a stable communication between a portable telephone and outside on-board instruments without adjusting the positions of respective infrared optical communication interfaces precisely. The holding device includes a light guide disposed between a plane containing one surface of the portable telephone equipped with an infrared optical communication interface and one end face opposing a housing equipped with an IrDA element . The light guide operates to direct an optical path of a light signal entering through one surface of the guide to a direction of the other surface. The transmission and receiving of optical signals is accomplished between the telephone and the instruments through the light guide

Mobile telephone holding device

There is disclosed an impedance conversion circuit called a regulated cascode circuit in which a parasitic capacity deteriorating frequency characteristics is reduced during operation up to about several hundreds of megahertz or higher frequencies. In the impedance conversion circuit comprising two regulated cascode circuits in which active elements and reverse amplifiers are interconnected with a feedback applied thereto, a capacity element is disposed between a control end of one active element and an output end of the other active element.

Impedance conversion circuit

In information communication system and method applicable to an in-vehicle networking architecture, at least one first electronic equipment which is enabled to serve another electronic equipment with its function and at least one second electronic equipment which is enabled to make use of a function which another electronic equipment serves are connected to a common communication bus (network). An equipment managing apparatus connected to the common communication bus stores a function serving information representing the function that the first electronic equipment can serve and a making-use-of function information representing the function of which the second electronic equipment can make use. If both contents of the function serving information and the making-use-of function information are coincident with each other, the second electronic equipment makes use of the function of the first electronic equipment.

Information communication system and method applicable to in-vehicle networking architecture

In an FDNR type active filter fabricated on an integrated circuit, an FDNR circuit is provided wherein one ends of a first capacitor and an impedance element are connected to an inverted input of an operational amplifier, one ends of the impedance element and a second capacitor are connected to an output end of the operational amplifier, and the other ends of the first and second capacitors are connected to each other. To the impedance element, resistors are connected in series. To the connecting end of the resistors, one end of another resistor is connected, the other end thereof being grounded in an alternating current form. The capacity value of the second capacitor is greater than that of the first capacitor.

Electronic circuit and filter device using same

Growing community of inventors

Kawasaki, Japan

Takashi Ueno