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 Title: |
WO9713371A1:
COMPRESSED VIDEO DATA PROCESSING WITH CONVERSION OF IMAGE COMPRESSION FORMAT[French]
[ Derwent Title ]
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Country:
Kind: |
WO World Intellectual Property Organization (WIPO)
A1 INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT i
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| Inventor: |
HIGUCHI, Masataka; 5-8, Kibogaoka 6-chome, Toyono-cho, Toyono-gun, Osaka 563-02, Japan
ASARI, Shigeatsu; 761, Hakotsukuri, Hannan-shi, Osaka 599-02, Japan
ASADA, Seigo; 17-23, Naritaminamimachi, Neyagawa-shi, Osaka 572, Japan
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| Assignee: |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., 1006, Oaza Kadoma, Kadoma-shi, Osaka 571, Japan
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| Published / Filed: |
1997-04-10
/ 1996-10-04
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| Application Number: |
WO1996JP0002894
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| IPC Code: |
Advanced:
H04N 7/14;
H04N 7/173;
H04N 7/26;
H04N 5/926;
Core:
more...
IPC-7:
H04N 7/14;
H04N 7/26;
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| ECLA Code: |
H04N7/14A4; H04N7/173B2; H04N7/26T;
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| Priority Number: |
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| Abstract: |
A local server (102) records compressed digital video data according to a first image compression format at normal and four times speeds, while a main server (106) records compressed digital video data according to a second image compression format at normal speed. An image format converter (104) is provided between the local and main servers (102 and 106). The image format converter (104) converts compressed digital video data according to the first image compression format output at normal speed from the local server (102) to compressed digital video data according to the second image compression format to be sent to the main server (106). The image format converter (104) also converts compressed digital video data according to the second image compression format output at normal speed from the main server (106) to compressed digital video data according to the first image compression format to be sent to the local server (102). Then, compressed digital video data can be input and output at a high speed when digital video data compressed are recorded after the image conversion format is changed and compressed digital video data are output for reproduction after the image conversion format is changed.
Un serveur local (102) enregistre des données vidéo numériques comprimées selon un premier format de compression d'images, à la vitesse normale et à la vitesse quadruple, pendant qu'un serveur principal (106) enregistre des données vidéo numériques comprimées selon un deuxième format de compression d'images, à la vitesse normale. Un convertisseur de formats d'images (104) se trouve entre les serveurs local (102) et principal (106). Le convertisseur de formats d'images (104) convertit des données vidéo numériques comprimées selon le signal de sortie du premier format de compression d'images à la vitesse normale, provenant du serveur local (102), en données vidéo numériques comprimées selon le deuxième format de compression d'images qui doit être envoyé au serveur principal (106). Le convertisseur (104) de formats d'images convertit aussi des données vidéo numériques comprimées selon le signal de sortie du deuxième format de compression d'images à la vitesse normale, provenant du format principal (106), en données vidéo numériques comprimées selon le premier format de compression d'images qui doit être envoyé au serveur local (102). Ensuite, les données vidéo numériques comprimées peuvent être entrées et sorties à grande vitesse quand des données vidéo numériques comprimées sont enregistrées après le changement de format de conversion d'images et que des données vidéo numériques comprimées sont sorties pour reproduction après que le format de conversion d'images a été changé.
[French]
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| Attorney, Agent or Firm: |
AOYAMA, Tamotsu ;
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| INPADOC Legal Status: |
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| Designated Country: |
CN KR US,
European patent:
AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE
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| Family: |
Show 15 known family members
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First Claim:
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CLAIMS
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Description
Expand description |
+ DESCRIPTION
CC14PRESSED VIDEO DATA PROCESSING WITH CONVERSION
+ Background Art In a television broadcasting station, digital video cassette recorders are used by reporters to gather news materials or the like. Then, records in the digital video cassette recorders are reviewed and edited for broadcasting.
The records are transferred to a server including a hard disk or the like having a high storage capacity. Once the data are stored in the server, they can be accessed by any computer connected to the server. It is desired in a television broadcasting station to broadcast latest news.
+ Disclosure of the Invention An object of the present invention is to provide a compressed video data processing system and an apparatus therefor which can satisfy compatibility of compressed digital video data of two or more different image compression formats.
Another object of the present invention is to provide a compressed video data processing system and an apparatus therefor which can record or reproduce compressed video data at a high speed even if conversion between two or more different image compression formats are processed.
+ Brief Description of the Drawings These and other objects and features of the present invention will become clear from the following description taken in conjunction with the preferred embodiments thereof with reference to the accompanying drawings, and in which: Fig. 1 is a block diagram of an video data processing system of a first embodiment according to the invention; Fig. 2A is a block diagram of one part of the image format converter, and Fig. 2B is a block diagram of another part of the image format converter; Fig. 3 is a block diagram of an video data processing system of a second embodiment according to the invention; Fig. 4A is a block diagram of one part of the image format converter, and Fig. 4B is a block diagram of another part of the image format converter; Fig. 5 is a block diagram of an apparatus f or video data processing according to the invention; Fig. 6 is a block diagram of a VCR/network according to an example of the apparatus shown in Fig. 5; Fig. 7 is a block diagram of an apparatus for video data processing according to the invention; and Fig. 8 is a block diagram of a VCR/network according to an example of the apparatus shown in Fig. 7.
Best Mode for Carrying Out the Invention Referring now to the drawings, wherein like reference characters designate like or corresponding parts throughout the several views, Fig. 1 shows an video data processing system of a first embodiment according to the invention. In the system, a digital video cassette recorder is connected through an image format converter 12 as an interface to a first recording and reproducing apparatus 14 having a large capacity storage device such as a hard disk and operating as a local server. The image format converter 12 converts a first image compression format (for example, DVCPRO as a kind of DV format), of video data of the digital video cassette recorder 10 to a second image compression format (for example, Motion-JPEG) of the first recording and reproducing apparatus 14, and vice versa. The first recording and reproducing apparatus 14 is connected through a network to a second recording and reproducing apparatus 16 having a large storage capacity device such as a hard disk and operating as a main server. Compressed video data are transmitted between the two apparatuses 14 and 16 in a network transmission format. The second recording and reproducing apparatus 16 is connected through a network to a plurality of external recording and reproducing apparatuses, and it may be accessed by a plurality of other image processors. The first recording and reproducing apparatus 14 is controlled by a first controller 18, while the second recording and reproducing apparatus 16 is controlled by a second controller 20. A main controller 22 comprising a personal computer, a monitor, a keyboard and the like controls the digital video cassette tape recorder 10 and the first and second controllers 18 and 20 in the total system by using control signals sent in serial transmission of RS 422A standard or the like. The controllers 18, 20 and 22 are known to a person skilled in the art, and they are not explained here further.
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| Forward References: |
Go to Result Set: Forward references (12)
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