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Disk apparatus, video/audio data processor, and video/audio control method

A technology of sound data and disk devices, applied in the field of disk devices, can solve the problems of not including means of processing, no processing commands, etc.

Inactive Publication Date: 2000-11-29
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In addition, although commands such as a recording start command (hereinafter referred to as a REC command) and a playback start command (hereinafter referred to as a PLAY command) are generally used as the processing function of the stream data of a digital VCR, in conventional hard disk devices, there is no processing function. What these commands do
[0012] In addition, although information such as playback speed or playback direction is attached to the PLAY command and transmitted, conventional hard disk devices do not include means for performing processing corresponding to these information.

Method used

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  • Disk apparatus, video/audio data processor, and video/audio control method
  • Disk apparatus, video/audio data processor, and video/audio control method
  • Disk apparatus, video/audio data processor, and video/audio control method

Examples

Experimental program
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Effect test

Embodiment 1

[0210] Fig. 1 is a block diagram showing the structure of a hard disk device as a magnetic disk device according to Embodiment 1 of the present invention.

[0211] The magnetic disk device of Embodiment 1 shown in FIG. 1 is connected to an input / output bus 104 that transmits commands and data from an external device (not shown), and an external device interface circuit 105 is provided, and the external device interface circuit 105 passes this input The output bus 104 sends and receives commands, data and parameters with external devices.

[0212] As shown in FIG. 1, the magnetic disk device of Embodiment 1 includes a CPU 106, a CPU interface circuit 107 for sending and receiving commands and data from the CPU 106, a buffer memory 108 as a temporary storage circuit, and a device for controlling data input and output to the buffer memory. The buffer memory control circuit 109 of the buffer memory control means.

[0213] The CPU 106 has a function of adding timing data of a pred...

Embodiment 2

[0575] Next, a magnetic disk device according to Embodiment 2 of the present invention will be described. Fig. 69 is a block diagram showing the structure of the magnetic disk device of the second embodiment.

[0576] In FIG. 69, the magnetic disk device of Embodiment 2 includes a CPU 106, a CPU interface circuit 107 for sending and receiving commands and data from the CPU 106, a buffer memory 108 as a temporary storage circuit, and a buffer for controlling data input and output to the buffer memory 108. memory control circuit 109 . In addition, a signal processing circuit 110 for controlling input and output of data to a magnetic disk 101 which is a disc-shaped magnetic disk medium, and an actuator drive for supplying a drive signal to the position determination mechanism 103 and performing position determination control of the magnetic head 102 are provided in the magnetic disk drive. The circuit 111 and the AV data processing circuit 112 execute predetermined processing co...

Embodiment 3

[0604] Next, a magnetic disk device according to Embodiment 3 of the present invention will be described. Fig. 73 is a block diagram showing the structure of the magnetic disk device of the third embodiment.

[0605] In FIG. 73, the magnetic disk device of Embodiment 3 includes a CPU 106, a CPU interface circuit 107 for sending and receiving commands and data from the CPU 106, a buffer memory 108 as a temporary storage circuit, and a buffer memory 108 for controlling data input and output. memory control circuit 109 . In addition, a signal processing circuit 110 for controlling input and output of data to a magnetic disk 101 which is a disc-shaped magnetic disk medium, and an actuator drive for supplying a drive signal to the position determination mechanism 103 and performing position determination control of the magnetic head 102 are provided in the magnetic disk drive. The circuit 111 and the AV data processing circuit 112 execute predetermined processing corresponding to ...

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Abstract

A disk apparatus and video / audio data processor having a function of processing stream data, virtually having a function of processing commands in a digital VCR, and adaptable to respond to various processing requests from an external apparatus, wherein a video / audio frame boundary of video / audio data is detected, the video / audio data continuously received from outside is divided into video / audio frame units according to the detected video / audio frame boundary, and the divided data is stored on a disk medium and controlled. A video / audio control method comprising detecting a video / audio frame boundary of video / audio data, dividing the video / audio data continuously received from outside into video / audio frame units according to the detected video / audio frame boundary, and controlling the divided data.

Description

technical field [0001] The present invention relates to a magnetic disk device such as a hard disk device. Specifically, it relates to a magnetic disk device capable of recording and reproducing audiovisual data continuously input through a digital interface in units of audiovisual frames, a video and audio data processing device, and a device for processing audiovisual data in units of audiovisual frames Image sound control method. Background technique [0002] In recent years, disk devices such as magnetic disk devices and optical disk devices have rapidly improved performance in terms of recording capacity and transfer speed, and are increasingly used for recording and reproducing audiovisual data as moving image data. In particular, the performance of the hard disk device is remarkably improved, and the hard disk device is used in a video server or the like for storing and distributing audiovisual data. [0003] Compared with data such as programs processed by a comput...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G11B20/10H04L12/40H04L12/64H04N5/781H04N5/926
CPCH04N5/926H04N5/781H04L12/40117H04N21/4343H04N21/43632G11B20/10527G11B2020/1225G11B2020/1267G11B2220/2516
Inventor 越野俊治山村敏记永石裕二吉浦司绫木靖
Owner PANASONIC CORP
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