Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Sanyo Electric Co., Ltd.

Hera Wireless S.a.

Yoshiyuki Otani

Seigo Nakao

Kiyoshige Ito

Hiroshi Kojima

Yasuhiro Tanaka

Ken Nakaoka

Masaaki Nishihara

Akifumi Hirata

Tooru Suyama

Yumi Okamura

Tomoya Ishikawa

Hanae Suzuki

A processing unit generates the timing information on the timing with which each of radio apparatuses is to synchronize in communications between the radio apparatuses when each of radio apparatuses broadcasts a signal. A modem unit, an RF unit and an antenna broadcast the generated timing information. The processing unit further generates the cycle information on a broadcast cycle in which each radio apparatus broadcasts the signal in communication between the radio apparatuses. The modem unit, the RF unit and the antenna broadcast the cycle information together with the timing information.

Broadcasting method, access control apparatus, and terminal apparatus

A display apparatus driving circuit capable of reducing the amount of heat generated at a driving unit while suppressing degradation in image quality is provided. A display apparatus driving circuit according to the present invention includes: a source driver for driving a display unit; a heat detecting circuit for detecting amount of heat generated at the source driver, and outputting a heat detection signal when the detected amount of generated heat is equal to or larger than a predetermined reference value; and a heat reduction circuit for changing, when the heat detection signal is received, a driving method of the display unit to reduce the amount of heat generated at said source driver.

Method and apparatus for reducing heat generated at source driver of display apparatus

A weight vector computing unit derives amounts of phase rotation for a plurality of multicarrier signals, respectively, and rotates the phase of a weight vector. A combining unit weights respectively a plurality of multicarrier signals with the phase-rotated weight vector, combines weighting results, and determines a combined result. A receiving weight vector computing unit remodulates the determined result and derives a first phase difference between the plurality of multicarrier signals and a result of the remodulation. The receiving weight vector computing unit remodulates the values of pilot signals and derives a second phase difference between the plurality of multicarrier signals and a result of the remodulation. Further, the receiving weight vector derives phase rotation amounts based on the first phase difference and the second phase difference.

Receiving method for receiving signals by a plurality of antennas, and a receiving apparatus and a radio apparatus using the same

A data rate is to be determined depending on circumstances. A control unit () transmits, at a predetermined frequency, a request signal by which to supply information on a data rate to a targeted radio apparatus compatible with a variable data rate. The control unit () receives rate information from the targeted radio apparatus. The control unit () sets a data rate used in the case of transmitting data, based on the information on a data rate contained in the rate information. The control unit () identifies the reliability level of the data rate contained in the rate information. And when the reliability level is low, the control unit () lowers the frequency at which the rate request signal is transmitted.

Radio apparatus

Growing community of inventors

Gifu, Japan

Yoshiyuki Otani