Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Hosiden Corporation

Sanyo Electric Co., Ltd.

Tokyo Electron Limited

Konica Minolta Opto, Inc.

Mitsubishi Denki Kabushiki Kaisha

Hosiden Electronics Co., Ltd.

Matushita Electric Industrial Co., Ltd.

Shinichi Saeki

Akira Yamamoto

Kaoru Murase

Kazuhiro Tsuga

Masayuki Kozuka

Tomoyuki Okada

Kazuhiko Yamauchi

Katsuhiko Miwa

Tokuo Nakatani

Hiroshi Hamasaka

Mamoru Yasuda

Yoshiaki Ohbayashi

Toshiyuki Ohkoda

Shigeaki Okawa

Shuji Osawa

Hideki Kawai

Kenichi Kagawa

Hiroki Niho

Hiroaki Sawada

Masatsugu Komai

Yukitoshi Nakatsuji

Norio Ichitsubo

Takanobu Takeuchi

Nobuyuki Enoki

Yasushi Yoneda

Junichi Tamamura

Mitsuaki Morita

Yasushi Tamakoshi

Yasuo Sugimori

Minobu Abe

Motomi Hosoda

Hidefumi Ino

Noriyuki Hidaka

Hirofumi Yamada

Jacket for portable terminal

Desktop holder for portable terminal

An optical disc includes a data area for recording a plurality of video segments and an index area from recording original type chain information and user-defined type chain information. The original type chain information defines an original type chain including first ones of the video segments by describing a reproduction order of the first video segments. The user-defined type chain information defines a user-defined type chain including second ones of the video segments by describing a reproduction order of the second video segments. The first video segments are positioned in the data area in the reproduction order of the first video segments whereas the second video segments are positioned in the data area independently of the reproduction order of the second video segments.

Optical disc, video data editing apparatus, computer-readable recording medium storing an editing program, reproduction apparatus for the optical disc, and computer-readable recording medium storing an reproduction program

A method for fabricating a glass substrate containing SiOas a main ingredient thereof for an information recording medium which ensures removal of abrasive or foreign mater adhered to the glass substrate without complicating a cleaning step, involves, after a polishing step, keeping the surface of the glass substrate in contact with a liquid having a Si element elution in a range from 100 to 10 000 ppb/mmbefore a scrub-cleaning step.

Method for fabricating a glass substrate for an information recording medium, and magnetic disk using the same

A method for cleaning a glass substrate which ensures removal of abrasive and other foreign matter without making a cleaning step complicated involves cleaning the glass substrate by scrubbing using two or more types of cleaning liquid having different Si element elution abilities. The cleaning liquid having the highest Si element elution is used first, and the cleaning liquid having the lowest Si element elution is used last.

Method for cleaning a glass substrate, method for fabricating a glass substrate, and magnetic disk using same

A multimedia optical disc for recording main video data which is composed of sets of frame data that is processed beforehand to allow compatibility with displays of a plurality of aspect ratios. The disc has a stream area storing streams made up of the main video data and a plurality of sets of sub-picture data, with each set of sub-picture data including a set of tel-op data and a set of coordinate information showing a display position of the set of tel-op data. The disc also includes a control area storing a plurality of pairings of a set of display mode information and a set of sub-picture indicating information. Each set of display mode information shows a species of display method according to which the frame data is to be processed for a case when the frame data decoded from the main video data is displayed at one of the plurality of aspect ratios. Each set of sub-picture indicating information shows a set of sub-picture data, out of the plurality of sets of sub-picture data in a same stream as the main video data, which includes a set of coordinate information which coincides with the species of display method shown by the display mode information.

Recording medium and playback apparatus for selecting sub-picture data according to combination of aspect ratio of display screen and type of display mode

A reproduction route composed of a still image section and a motion image section is recorded on a recordable DVD. A drive device () reads picture data from the DVD-RAM. An MPEG decoder () decodes and displays the read picture data. By referring to cell information, the judgment is performed as to whether the read picture data belongs to the still image section or the motion image data. If the read picture data belongs to the still image section, the next picture data is read out after a predetermined wait time.

Reproduction apparatus and computer reproduction method

A multimedia optical disc on which a variety of types of video titles are recorded and which enables a reproduction apparatus to instantly distinguish whether emulated AV functions may be performed for any of the titles. The multimedia optical disc includes a manager area which stores playback type information corresponding to the management information for each video title, with the playback type information including a first flag showing whether the present video title is expressed using one or a plurality of sets of route information and a second flag showing whether a title is expressed using any branch information.

Multimedia optical disc storing both video titles provided with AV functions and video titles with no such functions which can instantly distinguish between such kinds of titles, and a reproduction apparatus and reproduction method for such disc

A sound detecting mechanism capable of forming a diaphragm and a back electrode on a substrate by a simple process includes acoustic holes corresponding to perforations formed on a front surface of a substrate. A second protective film, a sacrificial layer and a metal film are laminated on the front surface in a portion corresponding to the acoustic holes. The substrate is etched from the back surface thereof to a depth reaching the acoustic holes to form an acoustic opening. Subsequently, by effecting an etching from the back surface of the substrate through the acoustic holes, the sacrificial layer is removed and a void area is formed between the diaphragm made of the metal film, the substrate and the formed perforations. The sacrificial layer that remains after the etching is used as a spacer for maintaining a gap between the back electrode and the diaphragm.

Sound detecting mechanism

A data processor includes: a parser receiving a data stream and separating, from the stream, video data including data of pictures, a first time information value showing a presentation time of each picture, audio data including data of frames, and a second time information value showing a presentation time of each frame; an output section for outputting the video and audio data to play back the pictures and frames; a reference register for counting amount of time passed since a predetermined reference time; a first differential register for calculating a difference between the first time information value of each picture and the time passed and holding it as a first differential value when the picture is output; a second differential register for calculating the difference between the second time information value of each frame and the time passed and holding it as a second differential value when the frame is output; and a control section for controlling the output of the video data according to the magnitude of the first differential value to that of the second differential value.

Data processing device

A multimedia optical disc is provided. The multimedia optical disc includes a data area and a management information area. The data area stores a plurality pieces of video data. The management information area stores a channel table in which a plurality of logical channel numbers are respectively related to a plurality of physical channel numbers for each piece of video data. A piece of moving picture data and a plurality pieces of sub-data are interleaved in each piece of video data. The sub-data is either of audio data and sub-picture data as still pictures. The logical channel numbers are shared by pieces of video data. The physical channel numbers are used to physically identify the plurality pieces of sub-data. With this construction, it is possible to manage sub-data even when the sub-data is dealt with by a plurality pieces of video data.

Reproduction apparatus for selecting sub-data with use of numeric keypad

Reproduction apparatus for cyclically changing sub-data

System control apparatus for moving picture data

A sound detecting mechanism is provided which forms a diaphragm with a required thickness by thickness control and yet restrains distortion of the diaphragm to provide high sensitivity. The sound detecting mechanism comprises a pair of electrodes forming a capacitor on a substrate A in which one of the electrodes is a back electrode C forming perforations Ca therein corresponding to acoustic holes and the other of the electrodes is a diaphragm B. The diaphragm B is mounted on the substrate A while the back electrode C is mounted in a position opposed to the diaphragm B across a void F to be supported by the substrate A, the back electrode C being formed by polycrystal silicon of 5 &#x3bc;m to 20 &#x3bc;m in thickness.

The present invention is an electret condenser microphone that includes an electro-acoustic transducer (M) having an electret portion (E) including a diaphragm () acting as an electrode and a stationary electrode () disposed in opposition to the diaphragm (), and a FET () effecting an impedance conversion on an output from the electro-acoustic transducer (M) and then outputting the converted output on a signal line (L). A capacitor () and a varistor () are provided in parallel between the signal line (L) and a ground () and a resistor () is incorporated in series in the signal line (L).

Electret capacitor microphone

Growing community of inventors

Sennan-gun, Japan

Shinichi Saeki