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Apparatus and method for recording video data

A technology of video data, recording equipment, applied in the direction of digital recording/reproduction, parts of color TV, parts of TV system, etc.

Inactive Publication Date: 2004-12-29
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, conversion time is required in addition to transmission time, so more time is spent

Method used

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  • Apparatus and method for recording video data
  • Apparatus and method for recording video data
  • Apparatus and method for recording video data

Examples

Experimental program
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Embodiment Construction

[0021] Embodiments of the present invention will be described below with reference to the drawings.

[0022] figure 1 is a block diagram showing the structure of a recording and reproducing apparatus 100a according to an embodiment of the present invention.

[0023] A control section 7 includes a ROM storing a program according to the present invention, a CPU executing the program, and a RAM used as a work area, and completely controls the apparatus 100a. The program can be stored in the large-capacity storage section 4, and expanded and executed in the RAM as necessary.

[0024] An audiovisual signal Vin received by a tuner 101 (such as a TV tuner, etc.) is converted by an analog-to-digital converter (ADC) 1 into digital audiovisual data (hereinafter simply referred to as video data) VD1, which is supplied to a first Encoder 2 and a second encoder 3. The first encoder 2 converts the video data VD1 into high-quality video data VD2 by compressing (encoding) the video data VD...

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Abstract

A first encoder section and a second encoder section encode video data at different compression rates. The encoded data are recorded in different areas A and A' of a large-capacity storage section, respectively. When reproduction on a monitor is instructed, a control section reproduces the video data recorded in the area A. On the other hand, when transfer to a mobile video data reproducing device is instructed, the control section transfers the video data recorded in the area A' to the mobile video data reproducing device.

Description

technical field [0001] The present invention relates to a device for compressing digital audio-visual data with different compression ratios and for recording the compressed data. Background technique [0002] Generally, when audiovisual data is recorded in a recording medium, the data is compressed. Encoding schemes with different compression ratios are used for recording audiovisual data on HDD (Hard Disk Drive) or DVD (Digital Volatile Disk) or on a CD or memory card. Japanese Patent Application KOKAI Publication No. 2002-330401 proposes a technique for recording and reproducing audiovisual data on optical discs having different recording densities respectively in an optimal streaming scheme according to the type of input signal or the image quality of digital broadcasting. [0003] Generally, when digital audiovisual data is recorded on a portable or so-called mobile video data reproducing device, high quality digital audiovisual data recorded on a recording medium havi...

Claims

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Application Information

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IPC IPC(8): H04N5/92H04N9/79H04N19/00
CPCH04N21/42661H04N21/4334H04N21/4122H04N21/44029H04N9/7921H04N21/4126
Inventor 西元雅之星野洁
Owner KK TOSHIBA