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AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsTomoyuki Okada, Kaoru Murase, Kazuhiro Tsuga
Estimating the term…
An information recording medium suitable for optical discs such as DVD-RAM is provided for integrated management of data as objects in different kinds of AV formats. Also apparatus is provided for data recording and playing to the medium. The medium stores management information including program chain information (PGC information) defining the playback order of the objects, and object information containing information relevant to the objects. The object information has general information of the object, attribute information and a map associating a playback time point of the object with an address on the optical disc of a component of the object to be played. The PGC information has cell information including information about type of object, identification information. The order of the cell information in the PGC information corresponds to the order in which the objects are played back.
An information recording medium for recording of objects which include at least one of image data and audio data, the medium comprising:
Dependencies are inferred from the claim text.
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On separate auxiliary tracks of the same or an auxiliary record carrier: used signal is digitally coded
Electronic editing of digitised analogue information signals, e.g. audio or video signals: on discs
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating discs
On the same track as the main recording: used signal is digitally coded
Term end not estimated
This application is based on application No. 10-289089 filed in Japan, the contents of which is herein incorporated by reference.
1. Field of the Invention
The present invention relates to readable/writable information recording medium. More specifically, the present invention relates to an information recording medium for recording multimedia data in different kinds of formats such as movie image data, still picture data and audio data; and a data recording apparatus and replaying apparatus for the medium.
FIG. 1 is a block diagram of a drive unit of a DVD recorder.
FIG. 2A is a diagram showing address space on a disc.
FIG. 2B is a diagram showing data accumulation in a track buffer.
With reference to the accompanying drawings, detailed description will be made for a DVD-RAM, a DVD recorder, and a DVD player as preferred embodiments of the present invention.
(Logic Structure of Data on DVD-RAM)
The DVD-RAM according to the present invention makes possible to record and manage integrally AV data and AV streams of many different kinds of formats on a single disc. This allows it to record on a single disc AV streams of different formats including a terrestrial broadcasting TV program, a digital broadcasting TV program transmitted in the MPEG transport stream format, a video stream taken by a digital video camera, a still picture taken by a digital still camera, and video data coded in the MPEG program stream, and so on. Further, the data recorded in the DVD-RAM can be played in a given sequence. For this purpose, the DVD-RAM according to the present invention is provided with management information for managing the AV streams without depending on the types of format of the AV data or AV streams.