Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kabushiki Kaisha Toshiba

Intel Corporation

Other

Matsushita Electrical Industrial Co., Ltd.

Matsushita Electric Co., Ltd.

Matushita Electric Industrial Co., Ltd.

Matshushita Electric Industrial Co., Ltd.

Yoshihisa Fukushima

Yasushi Azumatani

Isao Satoh

Masayuki Kozuka

Yuji Takagi

Hiroshi Ueda

Kazuhiro Tsuga

Yoshiho Gotoh

Motoshi Ito

Yoshihiro Mori

Kazuhiko Nakamura

Takumi Hasebe

Tomoyuki Okada

Yoshiichiro Kashiwagi

Hiroshi Hamasaka

Toshiyuki Kawara

Kenichi Matsui

Yuzuru Kuroki

Makoto Ichinose

Shinji Sasaki

Kaoru Murase

Kazuhiko Yamauchi

Katsuhiko Miwa

Miyuki Sasaki

Mitsuaki Oshima

Shunji Ohara

Takahiro Nagai

Yoshiho Goto

Makoto Tatebayashi

Tomoyuki Nonomura

Yuuji Takagi

Masaru Odagiri

Atsushi Ishihara

Koichi Hirayama

Masahiro Inagaki

Taku Kato

Jeffrey Bruce Lotspiech

Takashi Yumiba

Yoshihiro Kanda

Yasuhiko Yamane

Chieko Matsuda

Natsume Matsuzaki

Tadashi Kojima

Mitsurou Moriya

Kenji Takauchi

Osamu Yamaguchi

Namio Hirose

Micheal S Ripley

Hideki Mimura

Kenichi Nishiuchi

Haruo Yamashita

Kaoru Yokota

Shunji Harada

Masataka Minami

Mitsuro Moriya

Hideshi Ishihara

Hideki Fukuda

Michiyoshi Nagashima

Tatsushi Bannai

Takeshi Hagio

Yasuhiro Gotoh

Naoki Endoh

Mitsuhiko Serikawa

Tamotsu Matsuo

Mitsuhiro Inoue

Takehisa Kato

Yuji Hisakado

Kenzo Ishibashi

Hideaki Mita

Michael S Ripley

Hiroyuki Yabuno

Kazuhiro Yamanishi

Kazuhiro Aoki

Katsumi Murai

Koichiro Endo

Kazuoki Otani

Keiichiro Horai

Syunji Harada

Hiroaki Irie

Osamu Kawashima

Takagi Yuji

Isac Satoh

Yoshihiro Kanada

Tatushi Bannai

An optical disk for recording stereoscopic videos and high-quality video signals and a system for reproducing the videos and signals from the optical disk are made compatible with the conventional video reproducing system. A reproducing device which is used for reproducing stereoscopic videos and high-quality videos obtains stereoscopic video or high-quality videos by reproducing both first and second interleaved blocks on the optical disk in which first and second video signals are alternately recorded on the left and right sides by dividing the first and second video signals into frame groups of one GOP or more and a reproducing device which is not used for reproducing the stereoscopic videos and high-quality videos obtains ordinary videos by only reproducing either the first or second interleaved block by jumping tracks.

High-resolution optical disk for recording stereoscopic video, optical disk reproducing device, and optical disk recording device

In an information recording medium for recording and reproducing data thereon on a sector-by-sector basis, the recorded data being managed as at least one file by using a file structure, the file structure includes unused space management information for identifying a used region and an unused region. At least one defective region is registered as an unused region in the unused space management information, the at least one defective region being a region on the information recording medium which is incapable of proper reproduction of the recorded data.

Recording method and reproduction method suitable for recording/reproduction of AV data, and recording drive and reproduction drive, information recording system and information reproduction system, and information recording medium for such methods

The present invention relates to a method for recording an AV file using an information recording disk in which data is recorded/reproduced by sectors. The recording method includes the steps of determining whether or not input data is AV data; detecting a defective sector existing in an assigned data recording area; when the input data is AV data while a defective sector is detected in the data recording area, allocating a defective extent including the defective sector; recording AV data in continuous sectors while skipping the defective extent; and allocating an area of continuous sectors where on the AV data is recorded as one AV extent.

Recording/reproducing method suitable for recording/reproducing AV data on/from disc, recorder and reproducer for the method, information recording disc and information processing system

In a recordable data storage medium on which property data was recorded after having been modulated and on which data that is decodable by a cryptographic key to be generated from the property data was recorded, the property data was preferably modulated by a different method from that applied to a read-only data storage medium. Then, an optical disc drive, having no ability to distinguish the recordable data storage medium from the read-only data storage medium, cannot read the recordable data storage medium. Consequently, a greater number of drives should be equipped with the function of recognizing the type of a given data storage medium and the copyright protection function should be consolidated.

Optical disc drive

An information recording medium including a plurality of sectors of the present invention includes: a first spare area including a spare sector for replacing a defective sector among the plurality of sectors; a defect management information area for managing the replacement of the defective sector by the spare sector; and a volume space in which user data can be recorded. The volume space is configured so that a second spare area including a spare sector for replacing a defective sector among the plurality of sectors can be additionally allocated. Location information indicating a location of the second spare area is recorded in the defect management information area.

Information recording medium, information recording method and information recording/reproduction system

Growing community of inventors

Osaka, Japan

Yoshihisa Fukushima