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.

Personal authentication method and device

Abstract: During registration, an iris image taken is frequency-analyzed using a plurality of frequencies f1 to fn to generate features for the respective frequencies f1 to fn. During authentication, frequencies f2 to fn are selected from the frequencies f1 to fn for use in frequency analysis for authentication. An iris image of a person to be authenticated taken is frequency-analyzed using the selected frequencies f2 to fn to generate features for the respective frequencies f2 to fn. The generated features are compared with the features generated for the same frequencies during the registration to perform personal authentication.

Information recording medium, recording apparatus, reproduction apparatus, recording method, and reproduction method

Abstract: An information recording medium is provided, which comprises a plurality of recording layers and a first disc information area for storing parameters relating to access to the plurality of recording layers and formats relating to the plurality of recording layer. The first disc information area is provided in a first recording layer which is one of the plurality of recording layers.

Television program recording and reproducing system using program data of text broadcast signal

Abstract: Television program information contained in an extracted text broadcast signal is selected and input to a video cassette recording device. The recording program information includes recording times and program titles. The recording device includes a timer for starting the recording of the television program on a tape in accordance with the recording information, an index detector for detecting an index along the tape to identify a section in the tape where the television program is recorded, a rewind controller for rewinding the tape to its initial position, a writing arrangement for writing the recording information of the recorded program together with the index information at the initial position of the tape, and a fast forward controller for advancing the tape to the end of the recorded section identified by the index. The recording information written at the initial position of the tape can be displayed on a screen to indicate the contents of the tape.

Socket for led light source and lighting system using the socket

Abstract: A socket fixed to a heat sink holds a card-type LED module formed by integrating LED elements. The socket (6) includes: a frame structure for holding the LED module (1000) with its light source unit exposed through the frame opening; and a pressing member positioned around the opening for pressing the back surface of the LED module against the heat sink (2122). The socket may include a structure including a lower member (61) placed on a heat sink and an upper frame member (62) holding the LED module with its light source unit (1002) exposed through the frame opening. The upper member supported by the lower member via a hinge can open/close, and includes a pressing unit pressing the LED module set in the open state, against the lower member (61). The lower member (61) includes, in its main part, a lock unit (63) directly or indirectly lock the upper member (62) when the upper member is closed.

Pen-type computer input device

Abstract: A pen-type computer input device is used to move a cursor on the display of a computer system or enter data such as of figures, letters, numerals, or the like into a computer system. The pen-type computer input device includes a shank, a ball rotatably supported on the tip end of the shank, a pair of rotatable members rotatable about X and Y axes extending perpendicularly to each other and held in rolling contact with the ball, and a rotation detector for detecting the direction in which the rotatable members rotate and the distance by which the rotatable members move. Since the rotation of the ball is directly transmitted to the rotatable members and the distance by which the rotatable members move is detected, the pen-type computer input device is small in size and can easily be handled.