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Recording/reproducing disk control device and disc apparatus comprising the same

A control device and recording technology, applied in the direction of digital recording/reproducing, using detectable carrier information, using undetectable carrier information, etc., can solve the problem of inability to stream data recording, shortage of image and sound data, loss of data recording management information, etc. problems, to achieve the effect of preventing data overflow, preventing loss, and minimizing cost

Inactive Publication Date: 2002-08-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, when the recording of the audiovisual data has been stopped, when the recording management information is recorded on the disk, the recording management information on the data being recorded will be completely lost if a power failure occurs during the recording of the audiovisual data.
On the other hand, when audiovisual data is recorded on a disk and the record management information is recorded in duplicate, when the capacity of the record management information is large, it will not be possible to record stream data that is not lost at regular intervals on the disk. Case
That is, there may be a serious defect that the audiovisual data is short
[0017] In addition, the recording management information is divided into two areas of the disk and saved, and when the power of the conventional recording and reproducing disk control device is turned off and restarted, either recording management information can be read into the device provided on the main body of the device. In the memory, however, it is not known whether the power was cut off due to a power failure or the like during the recording of the audiovisual data.

Method used

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  • Recording/reproducing disk control device and disc apparatus comprising the same
  • Recording/reproducing disk control device and disc apparatus comprising the same
  • Recording/reproducing disk control device and disc apparatus comprising the same

Examples

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Embodiment 1

[0045] A recording and reproducing disk control apparatus according to Embodiment 1 of the present invention will be described below with reference to the drawings.

[0046] FIG. 1 is a block diagram showing the configuration of a recording / reproducing disc control device according to the first embodiment.

[0047] The recording and reproducing disc control device 100 shown in FIG. 1 has an external interface 102, a ring buffer 103, and records or records recording management information and audiovisual data in the DV format (hereinafter referred to as "DV data") with respect to a disc device 105. Regenerated data recording and reproducing unit 104, audiovisual data management unit 106, and recording management information management unit 107 having a volatile memory (not shown) storing recording management information. Here, the recording management information is information used for management of recording or reproduction of DV data, and is alternately recorded in two areas...

Embodiment 2

[0092] Next, a disk device according to Embodiment 2 of the present invention will be described with reference to the drawings.

[0093] FIG. 5 is a block diagram showing the configuration of a disk drive according to the second embodiment.

[0094] Disk device 120 shown in FIG. The configuration and operation of parts other than the data recording / reproducing unit 110, the magnetic disk 111, and the magnetic head 112 are the same as those of the recording / reproducing disk control device 100 of the first embodiment, and description thereof is omitted.

[0095] The data recording and reproducing unit 110 is the same as the data recording and reproducing unit 104 of the first embodiment, except that the magnetic head 112 performs digital data writing control or reading control on the magnetic disk 111 instead of recording or reproducing data on the disk device 105 through the IDE interface. .

[0096] The magnetic disk 111 is a disk-shaped recording medium on which digital dat...

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Abstract

The present invention provides recording management information that can be recorded without affecting the recording of DV data during storage of DV data, and can easily select the recording management information to be written into the memory provided in the recording and reproducing disc control device at startup. Information recording and reproduction disc control device. A data recording and reproducing unit (104) is provided for recording and reading DV data and recording management information on a disc-shaped recording medium, and it is monitored whether the data recording and reproducing unit (104) has remaining video and audio data in the recording of the DV data The management unit (106), temporarily retains the recording management information and sends the recording management information to the data recording and reproducing unit when the audiovisual data management unit (106) detects that there is a surplus in the recording of the DV data of the data recording and reproducing unit (104) (104) output record management information management unit (107).

Description

technical field [0001] The present invention relates to a recording and reproducing disk control device for controlling the recording and reproduction of continuously input audiovisual data on a disk through a digital interface, and a disk device using the control device, particularly recording management information including information for managing audiovisual data A disc device that records audiovisual data onto a disc. technical background [0002] In recent years, disk devices such as magnetic disk devices and optical disk devices have rapidly improved their recording capacity and transmission speed performance, and have been widely used for recording and reproducing audiovisual data as moving image data. In particular, the performance of hard disk devices has been significantly improved, and hard disk devices have been used in image servers for storing and transferring audiovisual data, editing machines for editing audiovisual data, and the like...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11B27/00G11B27/034G11B27/11G11B27/32G11B27/36H04N5/781H04N5/85H04N5/91H04N5/92H04N5/937
CPCG11B27/034G11B27/11G11B27/329G11B27/36G11B2220/20G11B2220/216G11B2220/2575G11B2220/65H04N5/781H04N5/85H04N5/9201H04N5/937G11B19/02
Inventor 木下卓巳
Owner PANASONIC CORP