Panasonic

About: Panasonic is a company organization based out in Kadoma, Ôsaka, Japan. It is known for research contribution in the topics: Signal & Layer (electronics). The organization has 49129 authors who have published 71118 publications receiving 942756 citations. The organization is also known as: Panasonikku Kabushiki-gaisha & Panasonic.

Information search support method and information search support device

Abstract: An information search support device for narrowing down information by means of recursive clustering and reducing an unexpected defeat of information that the user is interested with a simple operation is provided. The information search support device comprises a cluster selection information storage section (107) for storing information on the content of each cluster and cluster selection history information indicating which cluster the user has selected, a definition degree calculating section (111) for calculating the definition degree indicating the degree to which the search target of the user has become from an ambiguous state to a definition state from the information stored in the cluster selection information storage section (107), a search target estimating section (108) for acquiring a condition for estimating the search target from the information on the content of the selected cluster, an unexpected search defeat information extracting section (109) for extracting information on unexpected search defeats which is included in the clusters not selected and is estimated from the acquired condition from the clusters not selected, and an unexpected search defeat information addition judging section (112) for adding the extracted unexpected search defeat information to the cluster selected by the user.

Optical transmission apparatus

Abstract: In a transmission apparatus 8, modulation sections 201 convert digital data signals into DSL modulated signals, which are thereafter subjected to frequency conversion so as to span respectively different frequency bands. A combination section 207 frequency-division-multiplexes output signals from the modulation sections 201. An optical modulation section 102 converts the frequency-division-multiplexed signal into an optical signal. An optical detection section 104 reconverts the optical signal which has been transmitted over the optical transmission section 103 into an electrical signal. A splitter section 408 demultiplexes the electrical signal. Each of second frequency conversion sections 811 subjects either one of the demultiplexed signals to frequency conversion, and sends a resultant DSL modulated signal onto an electrical transmission section 105. The DSL demodulation section 106 reconverts the DSL modulated signal which has been transmitted over the electrical transmission section 105 into the original digital data signal.

Error correction device for a communication system

Abstract: The error correction device is provided with an internal code decoder which outputs a series of decoded data and reliability information of the decoded data, a CRC (Cyclic Redundancy Check) decoder, a de-interleaver, an erasure position detector, and an external code decoder for decoding an external code by soft judgement. When the external code is decoded by the soft judgment, not only the series of decoded data of the internal code and their reliability information but also frame error information based on CRC are used as input signals. It is therefore possible to perform error correction with a high accuracy and to obtain low BER characteristics.

Complementary channel type MOS transistor exclusive OR/NOR logic gate circuit

Abstract: The present invention relates to logic gate circuits of digital integrated circuits, particularly for the purpose of constituting gate circuits for realizing XNOR (Exclusive NOR) or XOR (Exclusive OR) circuits composed of CMOS (Complementary MOS), it is to offer complementary gate circuits in which the number of included transistors is reduced largely from that of conventional circuits.

Solar cell module

Abstract: A solar cell module includes: two solar cells, each including an photoelectric conversion body 10a, 10b having first and second main faces and generating photogenerated carriers, a first electrode provided on the first main face, and a second electrode provided on the first or second main face and having a polarity opposite to that of the first electrode; and a wiring member 2a for electrically connecting the first electrode of one of the two solar cells to the second electrode of the other solar cell. The first electrode has a plurality of finger electrodes for collecting the photogenerated carriers generated in the photoelectric conversion body 10a and a bus-bar electrode 11a for collecting the photogenerated carriers collected by the plurality of finger electrodes. The wiring member 2a is connected onto the bus-bar electrode 11a of the one solar cell through a connection layer 13 formed of a conductive resin containing conductive material. The connection layer 13 is also in contact with the first main face of the photoelectric conversion body 10a.