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 security device

Abstract: The present invention provides an apparatus for securely acquire a circuit configuration information set corresponding to a new cryptosystem without increasing the number of reconfigurable circuits. A content playback apparatus 100 includes an FPGA 122 that is reconfigurable. The content playback apparatus 100 stores a decryption circuit program that shows the structure of a decryption circuit that executes decryption in accordance with a prescribed cryptosystem. The FPGA is reconfigured in accordance with the program to configure the decryption circuit. The playback apparatus 100 acquires, from outside, an encrypted file that has been generated by encrypting a file including a decryption circuit program corresponding to the new cryptosystem in accordance with the prescribed cryptosystem, and decrypts the encrypted file by the decryption circuit.

Bump electrode for connecting electronic components

Abstract: The present invention relates to connecting electronic components using bump electrodes to connect electronic components such as semiconductors with the patterning electrodes of a circuit board. In order to prevent deterioration in connecting reliability due to deformation and the like of semiconductors and circuit boards, it is necessary to have some elasticity incorporated within bump electrodes. The bump electrodes disclosed by the present invention have resin bumps with numerous cavities disposed within and covered by a low melting point metal layer. According to this composition, even when there are some variations of distribution in circuit board warp and bump electrode height, it is possible to absorb the variations through the elasticity presented by the bump electrodes. It is also possible to perform a low strain connection with a resultant enhancement in connecting reliability at high temperature.

Optical disc and reproduction device which can achieve a dynamic switching of the reproduced content

Abstract: A multimedia optical disc which includes a data region for storing a plurality of objects which include video data, audio data and sub-picture data, wherein the data region is composed of a plurality of small regions, wherein each object is stored in consecutive small regions and wherein each small region includes a first subregion for storing video data of a certain reproduction period, a plurality of second subregions which each store audio data, wherein audio data stored in different second subregions express different reproduction audio to each other and each set of audio data is data to be reproduced at a same time as the video data in a first subregion, a plurality of third subregions which each store sub-picture data, wherein sub-picture data stored in different third subregions express different images to each other and each set of sub-picture data is data to be reproduced at a same time as the video data in the first subregion and a fourth subregion for storing control information, wherein each set of control information is valid for a reproduction period of data in a same small region and wherein the control information includes an indication to a reproduction device for a combination of one set of audio data out of the second subregions and one set of sub-picture data out of the third subregions which are to be reproduced together with the video data in the first subregion.

Method of manufacturing semiconductor chip

Abstract: In a method in which a semiconductor wafer 1 having integrated circuits 3 formed in a plurality of chip regions and test patterns 4 formed in scribe lines 2a is divided by a plasma etching process so as to manufacture individual semiconductor chips, in the semiconductor wafer 1, a protection seat 5 which constitutes a mask in the plasma etching process is adhered onto a front plane 1a thereof where the integrated circuits 3 have been formed; since laser light 9a is irradiated along the scribe lines 2a, only a predetermined width of the protection seat 5 is removed so as to form a mask having a plasma dicing-purpose opening portion 5b; and also, the test patterns 4 are removed by the laser light 9a in combination with a front plane layer of the semiconductor wafer 1. As a result, the test patterns 4 can be removed in a higher efficiency and in simple steps, while the general purpose characteristic can be secured.

Local positioning apparatus, and a method therefor

Abstract: An apparatus and method for correctly determining the position of a vehicle in a traffic lane by obtaining correct information about the position of the traffic lane without being affected by variations in the road surface, weather, time of day, or such imaging conditions as fixed or moving lighting, are provided. An edge signal of a high spatial frequency component and a luminance signal of a low spatial frequency component of a digital image signal representing the view of the local area to the front of a vehicle are extracted. A road contour signal is then extracted from the edge signal, and a road region signal is extracted from the luminance signal. The position of the lane Sre is then detected with high precision by evaluating the lane contour Sre based on the road region signal Srr and lane contour data Sre.