Multimedia data storage system and method for operating a media server as a cache device and controlling a volume of data in the media server based on user-defined parameters

    公开(公告)号:US6434680B2

    公开(公告)日:2002-08-13

    申请号:US47123099

    申请日:1999-12-23

    Applicant: IBM

    CPC classification number: G06F12/08 G06F17/30017

    Abstract: The present invention is directed to a multimedia data storage system for storing multimedia data including a media server which stores media data on a short-term basis, and a media archive which stores media data on a long-term basis relative to the media server. The media archive is connected to the media server, which operates as a cache device for the media archive, for transmission of media data between the media archive and the media server. According to the present invention, a volume of the media data stored in the media server is controlled based on user-defined parameters. The present invention is also directed to a method of managing a media server as a cache device for a media archive within a multimedia data storage system. The media server stores media data on a short-term basis, whereas the media archive stores media data on a long-term basis relative to the media server. The media archive is connected to the media server for transmission of media data therebetween. According to the present invention, the method of managing includes determining a volume of the media data stored in the media server and controlling the volume of the media data stored in the media server based on user-defined parameters. The present invention is also directed to a computer-readable medium of instructions to be implemented in a multimedia data storage system including a media server and a media archive. The media server stores media data on a short-term basis and the media archive stores media data on a long-term basis relative to the media server. The media archive is connected to the media server for transmission of media data therebetween. The inventive computer-readable medium of instructions includes means for determining a volume of the media data stored in the media server and means for controlling the volume of the media data stored in the media server based on user-defined parameters.

    MEDIA MANAGER AND IMPLEMENTING METHOD FOR APPLICATION PROGRAM INTERFACE

    公开(公告)号:JPH11175390A

    公开(公告)日:1999-07-02

    申请号:JP23898198

    申请日:1998-08-25

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To obtain a common interface for a media server by converting generic-term commands of high level into commands of device level and outputting the commands of device level to one of media devices. SOLUTION: A high-level command processor 10 receives a command from high level from a request application 8 and discriminates whether or not the command corresponds to a media server of a specific type that the media manager 5 supports. When corresponds to, the request is sent to a device specification command mapping module 15 which processes the command of high level for a media device 25. Commands of high level are mapped to device level commands for the media device 25 that a module corresponds to and transferred through a device interface 20.

    Media manager
    3.
    发明专利

    公开(公告)号:GB2330671A

    公开(公告)日:1999-04-28

    申请号:GB9819833

    申请日:1998-09-14

    Applicant: IBM

    Abstract: A media manager 5 incorporates an application program interface (API) for converting high-level generic commands into device-level commands for output to a media device. The media manager includes a high-level command processor 10 which decodes the high-level generic commands and device-specific code mapping modules 15 which convert the high-level generic commands decoded by the high-level command processor into device-level commands. Each of the device-level commands is output from one of the device-specific code-mapping modules to a corresponding one of the media devices 25.

    Media manager
    4.
    发明专利

    公开(公告)号:GB2330671B

    公开(公告)日:2002-11-06

    申请号:GB9819833

    申请日:1998-09-14

    Applicant: IBM

    Abstract: According to the present invention, a media manager is provided which incorporates an application program interface (API) for converting high-level generic commands into device-level commands for output to a media device. The inventive media manager includes a high-level command processor which decodes the high-level generic commands and device-specific code mapping modules which convert the high-level generic commands decoded by the high-level command processor into device-level commands. Each of the device-level commands is output from one of the device-specific code-mapping modules to a corresponding one of the media devices. The present invention also encompasses a method of implementing an application program interface (API) for media devices. The method includes receiving high-level generic commands from a computer application, converting the high-level generic commands into device-level commands, and outputting each of the device-level commands to one of the media devices. The present invention also encompasses a computer program product including a computer-readable medium. The computer program product includes means for decoding high-level generic commands, means for converting the high-level generic commands into device-level commands, and means for outputting each of the device-level commands to a corresponding one of the media devices. The present invention further encompasses a common application program interface (API) which converts high-level generic commands received from a computer application into device-level commands which are output to a plurality of media devices including media servers which stores media objects. The common API includes a plurality of individual APIs which each perform a specific function.

    An application interface to a media server and a method of implementing the same

    公开(公告)号:IE980729A1

    公开(公告)日:2000-02-09

    申请号:IE980729

    申请日:1998-08-26

    Applicant: IBM

    Abstract: According to the present invention, a media manager is provided which incorporates an application program interface (API) for converting high-level generic commands into device-level commands for output to a media device. The inventive media manager includes a high-level command processor which decodes the high-level generic commands and device-specific code mapping modules which convert the high-level generic commands decoded by the high-level command processor into device-level commands. Each of the device-level commands is output from one of the device-specific code-mapping modules to a corresponding one of the media devices. The present invention also encompasses a method of implementing an application program interface (API) for media devices. The method includes receiving high-level generic commands from the computer application, converting the high-level commands into device-level commands, and outputting each of the device- level commands to one of the media devices. The present invention also encompasses a computer program product including a computer-readable medium. The computer program product includes means for decoding high-level generic commands, means for converting the high-level generic commands into device-level commands, and means for outputting each of the device- level commands to a corresponding one of the media devices. The present invention further encompasses a common application program interface (API) which converts high-level generic commands received from a computer application into device-level commands which are output to a plurality of media devices including media serves which stores media objects. The common API includes a plurality of individual APIs which each perform a specific function.

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