Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Teac Corporation

Matsushita Electric Industrial Co., Ltd.

Other

Mitsubishi Electric Research Laboratories, Inc.

Mitusbishi Electric Corporation

Kazuhiko Nakane

Masaaki Shimada

Tomoaki Ryu

Yoshihisa Yamada

Hiroyuki Ohata

Kyosuke Yoshimoto

Teruo Furukawa

Masato Nagasawa

Yoshinobu Ishida

Masafumi Ototake

Kenji Gotoh

Junichi Kondo

M C Rao

Hiroyuki Oohata

Masayoshi Shimamoto

Kouichi Komawaki

Tsuyoshi Katayama

Yoshihiro Kiyose

Takashi Ishida

Isao Satoh

Shunji Ohara

Masaharu Ogawa

Yoshinari Takemura

Mahesh Chandra Rao

Akira Mashimo

Kunimaro Tanaka

Osamu Ito

Isao Watanabe

Teruo Fujita

Koichi Takeuchi

Hiroyuki Onda

Morihiro Karaki

Mitsuru Irie

Kazuhiko Tsutsumi

Isao Otsuka

Takuya Nagata

Masato Nagasa

Nobuo Takeshita

Kenichi Sato

Hajime Nakajima

Hiroshi Tsuyuguchi

Ajay Divakaran

Minoru Ozaki

Yoshiaki Sakai

Yoshiyuki Nakaki

Kenjiro Kime

Katsuya Enami

Kouichi Yamada

Mitsuo Maeda

Motomu Yoshimura

Kenji Shimozawa

Keiji Nakatsu

Yoshiki Nakajima

Tetsuro Araki

Masami Horita

Fumio Matsuda

Hideaki Kobachi

Koji Yamana

Hidehiko Murata

Yoshiyuki Nakai

Yoshiaki Umeda

Jinichi Kondo

Koiti Komawaki

Mabesh Chandra Rao

Ryuichirou Aria

Hiroshi Konuma

Masaharu Yoshimura

Ryuichirou Arai

Access point pictures designated as randomly accessible positions are I pictures or P pictures. Information indicating the decoding sequence (I, P, B, B, B, B, P, . . . ) of pictures functioning as access points and attribute information (picture_type) indicating whether a picture functions as an access point or is necessary for decoding of the access point following a given access point are recorded on the video information recording medium. Random access is possible even if the GOP interval is lengthened.

Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method

In a recording medium on which is recorded a multiplexed stream including a plurality of first packets (V_main) constituting a first I-picture in a first video stream and a plurality of second packets (V_sub) constituting a second I-picture in a second video stream, information for identifying the first I-picture and information for identifying the second I-picture are recorded on the medium. A recording medium can thereby be obtained that enables the rapid detection, from a small amount of information, of a particular picture included in a stream such as a TS in which multiple content streams are multiplexed.

Recording medium, reproducing apparatus, and reproducing method

Access point pictures designated as randomly accessible positions are I pictures or P pictures. Information indicating the decoding sequence (I1, P1, B1, B2, B3, B4, P2, . . . ) of pictures functioning as access points and attribute information (picture_type) indicating whether a picture functions as an access point or is necessary for decoding of the access point following a given access point are recorded on the video information recording medium. Random access is possible even if the GOP interval is lengthened.

In a system for visualizing a stereoscopic image by displaying separate video images for the left and right eyes, sub-picture data (GRD) is created for the left eye and displayed superimposed on left-eye video data (VDD) as a left-eye sub-picture without change. The right-eye sub-picture () is displayed by shifting the horizontal positions at which the sub-picture data created for the left eye is displayed by prescribed widths. For example, the sub picture may include a plurality of objects (GRD-, GRD-, . . . , GRD-N); shift widths () of the horizontal positions of the left and right ends of the objects are individually set and stored in the sub-picture data for displaying the objects for the right eye. A sub-picture superimposed on a stereoscopic video image can thereby be rendered in the depth direction, and the data size of the sub-picture and the amount of computation required for its display can be reduced.

Video encoding device, video encoding method, video reproducing device, video reproducing method, video recording medium, and video data stream

A content assessment apparatus, content assessment method, information reproducing apparatus, and information recording medium are provided that can determine whether digital content has been processed abnormally. The information reproducing apparatus includes a drive () that reads content from an information recording medium () on which content including an electronic watermark, indicating an attribute denoting whether or not the content is encrypted, is recorded, a decryptor (), a decryptor status monitor (), a stream attribute monitor (), a decision means () that determines that the content has been abnormally processed when a decryption status signal indicates otherwise than that decryption processing is being performed and an attribute detection signal indicates that the content is encrypted, or when the decryption status signal indicates that decryption processing is being performed and the attribute detection signal indicates that the content is non-encrypted, a video decoder (), and an output control means () that is not allowed to output the video signal if the content has been abnormally processed.

Content assessment apparatus, content assessment method, information reproducing apparatus, and information reproducing method

Growing community of inventors

Tokyo, Japan

Kazuhiko Nakane