Kabushiki Kaisha Toshiba

Hiroyuki Kamio

Takayuki Tachikawa

Toshiaki Tanaka

Takashi Doi

Kiyoshi Hoshino

Hideyuki Aisu

Tadahiro Oku

Yoshio Kataoka

Mitsunori Omokawa

Masatoshi Murakami

Manabu Shibutani

Tatsuji Kusumoto

Akinori Ohta

Kanji Inoue

Osamu Kaseno

Tomoyuki Miura

In an embodiment, a PATS counter synchronized with an SCR superposed on an MPEG-TS is used. When recording the MPEG-TS, a pair of the value of time stamp information (PTS/DTS) of a previously detected picture and the value of the PATS counter are stored (ST-ST). When detecting the next time stamp information, an increase in the time stamp information is compared with an increase in the PATS counter (ST-ST). If the significant difference is exhibited (YES in ST), it is determined that an error is found in the time stamp information value, and a recording process is performed (ST).

Information storage medium, information recording method, information playback method, information recording apparatus, and information playback apparatus

A video recorder includes a schedule reconfiguration section having: a local deterioration determining module that determines whether a local deterioration in a recording state occurs by performing simulating the recording state obtained when the reallocated resources are used for performing the programmed recordings and comparing the simulated recording state with a recording state obtained when the resources before the reallocation is used for performing the programmed recordings; and an allocation restoring module that restores the reallocated resources at a part causing the local deterioration to the resources allocated before the reallocation when the local deterioration determining module determines the occurrence of the local deterioration.

Video recorder and method of processing recording schedule

According to one embodiment, this invention allows to acquire attribute information of a stream object and to generate it as management information upon recording a digital stream when an MPEG-TS that uses H.264 as a moving picture encoding format is to be recorded. Information is acquired from a component descriptor, a PES packet header, or a sequence parameter set in a program map table included in the digital stream signal, and video attribute information of the object and/or attribute information of the data unit is determined. The object is recorded for each data unit, and management information that manages the recorded is recorded.

Recording method, reproducing method, recording apparatus, and reproducing apparatus of digital stream

According to one embodiment of the invention, there is provided an information recording and reproducing apparatus which records information in a recording medium and reproduces information recorded in the recording medium, the information recording and reproducing apparatus includes a recording section which records in the recording medium an first encrypted encryption key aggregate where at least one encryption key for encrypting each of a plurality of pieces of information has been encrypted and registered and information encrypted using the encryption key, a necessity determining section which determines on the basis of conditions decided according to the type of the recording medium whether to record the first encrypted encryption key aggregate into the recording medium, wherein the recording section records in the recording medium the first encrypted encryption key aggregate determined to have to be recorded.

Information recording and reproducing apparatus and method

According to one embodiment of the invention, there is provided an information recording and reproducing apparatus which records information in a recording medium and reproduces information recorded in the recording medium, the information recording and reproducing apparatus includes a first recording section which records in the recording medium an encrypted encryption key aggregate where at least one encryption key for encrypting each of a plurality of pieces of information has been encrypted and registered and information encrypted using the encryption key, a second recording section which records encrypted first private key information used to encrypt or decrypt the encryption key into the recording medium and which, if the encrypted encryption key aggregate has not been recorded in the recording medium, records the first private key information into the recording medium only when the encrypted encryption key aggregate is recorded in the recording medium.

An information recording apparatus comprises a reception unit configured to receive image signals, a stream generation unit configured to generate a stream formed by continuously arranging a plurality of pieces of VOBU adhering to a DVD-VR standard from the image signals received by the reception unit, a management information generation unit configured to generate management information of the stream generated by the stream generation unit, a control unit configured to arrange part of the management information generated by the management information generation unit in reserve areas in a plurality of pieces of VOBU constituting the stream respectively, and a recording unit configured to record the stream in which part of the management information is arranged by the control unit and the management information in a recording medium.

Information recording apparatus and information recording method

A television audiovisual apparatus using a personal computer comprises an audio/video I/O interface including a television tuner, disposed in the personal computer, and an information compression/decompression unit for compressing audio/video signals input through the audio/video I/O interface in accordance with the MPEG2 specifications to store the compressed audio/video signals in a large capacity storage disposed in the personal computer, and for decompressing compressed audio/video signals in accordance with the MPEG2 specifications.

Growing community of inventors

Tachikawa, Japan

Hiroyuki Kamio