Sharp Kabushiki Kaisha Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hiroshi Uno

Yoshihiro Ohtani

Yutaka Ikeda

Hiroyuki Nakaoka

Yutaka Takahashi

Akira Imai

Takaaki Kusaka

Shinichi Nakajima

Hidetaka Yabuuchi

Mitsuru Yoneyama

Yuji Ichikawa

Takahito Ishii

Kazuo Yamashita

Tsukasa Kaminokado

Satoshi Arima

Yoshifumi Moriya

Noriyuki Yoneno

Koichi Nakano

Makoto Nakamura

Takashi Nakajima

Masaru Kikukawa

Shintaro Nozawa

Yoshihiro Otani

Fumitaka Kikutani

An air conditioning seat device includes an air blower, and a dehumidifier for dehumidifying the air sent from the air blower owing to adsorption, and blows out the dehumidified air to holes provided on a skin of a seat through an air duct. In this makeup, the sweat on the body surface and in the clothes is rapidly vaporized, causing a large amount of vaporization heat loss. Accordingly, the human body feels coolness, and steaminess on the skin is suppressed owing to the sweat vaporization.

Air conditioning seat device

A digital optical transmission apparatus includes a modulation portion for modulating data to be transmitted in an ASK modulation method, and an E/O modulation portion for converting an electrical signal output from the modulation portion into an optical signal having a base band component with a constant DC level. DC-biased or FSK-biased may be employed as a method of making constant the DC level of the base band component.

Digital optical transmission apparatus and method for performing ASK modulation to generate base band component with constant DC level

METHOD OF CODING SIGNAL FOR DIGITAL OPTICAL COMMUNICATION HAVING SPECTRUM WHICH ATTAINS ZERO LEVEL AT PRESCRIBED FREQUENCY WITHIN MAIN LOBE BAND, BASEBAND TRANSMITTER OR ASK TRANSMITTER USING SUCH METHOD, AND BASEBAND RECEIVER OR ASK RECEIVER DECODING SIGNAL CODED BY SUCH METHOD

A digital optical transmitter includes a main/subdata modulation part for distorting a main data modulated signal waveform in response to sub-data, and an E/O conversion part for converting a subsequently obtained electrical modulated signal to an optical modulated signal and outputting the optical modulated signal. A digital optical receiver includes an O/E conversion part for receiving the optical modulated signal, converting it to an electrical modulated signal, and outputting the electrical modulated signal. Additionally, the digital optical receiver further includes a main/subdata demodulation part for demodulating the main data from the electrical modulated signal, while detecting whether or not a distortion signal responsive to the subdata is superposed on a subcarrier which forms the electrical modulated signal. If the distortion signal is superposed on a subcarrier, the main/subdata demodulator part demodulates the associated subdata.

Digital optical transmitter and digital optical receiver making communication by superposing subdata on modulated waveform of main data

A portable heat transfer apparatus including a combustion device, a thermoelectric convertor for receiving the heat of the combustion device at its high temperature side, transferring the heat from its low temperature side to a heat exchanger, and generating electric power depending on the temperature difference between the high temperature side and low temperature side. A heat medium forced circulating device is driven by the power generated from the thermoelectric converter for transferring heat medium to the heat exchanger. Also provided is a heat releasing device for circulating and releasing the heat medium exchanged of heat in the heat exchanger. Therefore, the heat exchanger can be heated through the thermoelectric converter while heating the thermoelectric converter with the combustion device, and by heating with the heat exchanger. The temperature difference between the high temperature side and low temperature side of the thermoelectric converter can be obtained rationally and sufficiently. Therefore, the apparatus is reduced in size and weight, and it is convenient for portable use.

Heat transfer apparatus

A peripheral device operating with power supplied from a host device includes a receive unit receiving an external signal and a controller. The controller causes at least one of the functions of the peripheral device to operate intermittently when the host device is in a sleep mode. Further, upon reception of the external signal via the receive unit, the controller forces the host device to shift to an active mode based on the signal received. As at least one of the functions of the peripheral device is forced to operate intermittently when the host device is in the sleep mode, the consumption of the power supplied from the host device is reduced.

Peripheral device for reducing power supplied from a host device and control method thereof

A method of coding a signal for digital optical communication using a symbol formed of N slots &lsqb;s,, s,, s,, . . . , s,&rsqb;, wherein s,is either 0 or 1 where i is an integer and 1&lE;i&lE;N is provided. The method includes the steps of determining a plurality of symbols which satisfy the following expression, wherein k is an arbitrary positive integer, and p,, q,, p,, q,, . . . , p,and q,are integers which satisfy 1&lE;p,<q,, 1&lE;p,<q,, . . . , 1&lE;p,<q,, and p,/q,<p,/q,< . . . <p,/q,:

Method of coding signal for digital optical communication having spectrum which attains zero level at prescribed frequency

The noise removing device is used in a data communication system utilizing a transmitting signal modulated by a data signal to be transmitted. The noise removing device includes a receiving section for receiving the transmitting signal, and converting it into an electric signal, so as to supply an input signal, an analog signal processing circuit for selectively passing the input signal in a first frequency range including a carrier frequency of the transmitting signal, thereby removing a first noise, for converting the passed signal into a digital signal, and for outputting the digital signal, and a digital signal processing circuit for sampling the digital signal, and for selectively passing the digital signal in a second frequency range including the carrier frequency based on a result of comparison of a pattern obtained by the sampling with a predetermined pattern, thereby removing a second noise.

Noise removing device and data communication apparatus using the same

Upon heat being liberated, a latent heat storage material is kept in indirect contact with a heat transfer medium through a heat liberation or output accelerating material. Thus, the heat of fusion of the storage material is taken out with high efficiency. Since a heat input accelerating material is taken into a solid phase of the storage material, the heat input velocity at which heat is transferred to the storage material is greatly increased when heat is transferred or stored thereinto. Thus, a practical latent heat storage device having excellent heat input and output characteristic has been materialized.

Latent heat storage device

Growing community of inventors

Nara, Japan

Hiroshi Uno