Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Tomoaki Ryu

Kazuhiko Nakane

Masaaki Shimada

Yoshihisa Yamada

Eiji Yokoyama

Kazuhiko Yamada

Satoshi Minami

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.

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Tokyo, Japan

Tomoaki Ryu