US 6,374,037 B1Granted

Information recording medium apparatus and method for performing after-recording on the recording medium

AssigneeMatsushita Electric Industrial Co., Ltd.

InventorsTomoyuki Okada, Kaoru Murase, Noriko Sugimoto, Kazuhiro Tsuga

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Abstract

The invention provides an information recording medium, such as an optical disk, having a large capacity and being capable of performing read/write operations at high speeds. The recording medium includes an audio stream prepared for after-recording data, and a audio attribute information having a bit rate information to the recorded audio stream as a management information. A recorder according to the invention has a check unit for checking, in advance, the possibility of after-recording operation of the recorder to the audio stream to be after-recorded with reference to the bit rate information of the audio attribute information.

Claims28

Dependent claims

An information recording medium comprising an area for storing at least one video object and an area for storing management information, wherein:

the video object includes a video stream which is obtained by coding a video signal, a first audio stream which is obtained by coding an audio signal and a second audio stream which is obtained by coding an audio signal;
and
the management information includes:
status information, the status information indicating whether or not the second audio stream is provided for after-recording operation and further indicating whether or not the after-recording data is recorded to the second audio stream when the second audio stream is provided for after-recording operation;
bit rate of the second audio stream;
number of audio streams included in the video object;
sampling frequency for sampling the audio signal;
and
coding mode of the second audio stream.

6 more elements

An information recording medium comprising:

an area operable to store at least one video object and an area operable to store management information;
wherein the video object comprises a video stream which is obtained by coding a video signal, a first audio stream which is obtained by coding an audio signal and a second audio stream which is obtained by coding an audio signal;
and
wherein the management information comprises:
status information, the status information operable to indicate whether or not the second audio stream is provided for an after-recording operation and further operable to indicate whether or not the after-recording data is recorded to the second audio stream when the second audio stream is provided for the after-recording operation;
a bit rate of the second audio stream;
a number of audio streams included in the video object;
a sampling frequency for sampling the audio signal;
and
a coding mode of the second audio stream.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/504,938Filed 16 Feb 2000
Priority: JP 11-03837017 Feb 1999
Granted: 16 Apr 2002
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

G11B 27/34
Indexing; Addressing; Timing or synchronising; Measuring tape travel: indicating arrangements
G11B 20/10527
Digital recording or reproducing: audio or video recording; Data buffering arrangements
G11B 27/036
Electronic editing of digitised analogue information signals, e.g. audio or video signals: insert-editing
G11B 27/105
Programmed access in sequence to addressed parts of tracks of operating record carriers: of operating discs