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    4.
    发明专利
    未知

    公开(公告)号：DE69516346T2

    公开(公告)日：2000-10-19

    申请号：DE69516346

    申请日：1995-08-25

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  CLEARY LOUISE IRENE ,  ELDRIDGE JAMES W ,  FITCHETT LARRY WILLIAM ,  LUNING STEPHEN G ,  MURRAY CHRISTOPHER S ,  OLNOWICH HOWARD T ,  SAXENA ASHOK RAJ ,  SCHUBERT KARL DAVID ,  STANSBURY BUDDY FLOYD

    IPC: H04N5/93 ,  H04H20/42 ,  H04N5/765 ,  H04N7/173 ,  H04N21/218 ,  H04N21/226 ,  H04N21/238 ,  H04N21/262

    Abstract: A media streamer (10) includes at least one storage node (16, 17) for storing a digital representation of a video presentation. The video presentation requires a time T to present in its entirety, and is stored as a plurality of N data blocks, each data block storing data corresponding approximately to a T/N period of the video presentation. The media streamer further includes a plurality of communication nodes (14) each having at least one input port and at least one output port; a circuit switch (18) connected between the at least one storage node and input ports of the plurality of communication nodes, the circuit switch selectively coupling one or more of the input ports to the at least one storage node to enable the digital representation stored thereat to appear at one or more of the output ports; and at least one control node (18) coupled at least to the plurality of communication nodes and to the at least one storage node for enabling any one of the N blocks to appear at any output port of any of the plurality of communication nodes.

    5.
    发明专利
    未知

    公开(公告)号：DE69515153D1

    公开(公告)日：2000-03-30

    申请号：DE69515153

    申请日：1995-09-05

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  FITCHETT LARRY WILLIAM ,  HENLEY MARTHA R ,  SAXENA ASHOK RAJ ,  STANSBURY BUDDY FLOYD ,  WYLLIE JAMES CHRISTOPHER

    IPC: G06F3/06 ,  H04L29/06 ,  H04N7/173

    Abstract: A video server system or media streamer 10 includes at least one control node 18; at least one storage node 16, 17 with mass storage for storing a digital representation of a video presentation; and a plurality of communication nodes 14 switchably coupled under the direction of the control node to the at least one storage node for receiving a video presentation therefrom. Each of the plurality of communication nodes is coupled to an adapter 212 by a communications bus 210, outputting a video presentation as a sequence of data bursts over the communications bus to the adapter, which converts the received sequence of data bursts to a substantially isochronous data stream. Each of the plurality of communication nodes further includes a plurality of output ports, each having an associated data buffer for buffering a portion of a digital representation prior to a transmission of the digital representation. Each of the plurality of communication nodes further includes a scheduler for scheduling, for individual data buffers, a read request to the storage nodes for a next sequential portion of the digital representation for storage within the data buffers. Each read request is scheduled at a predetermined time such that a requested next sequential portion of the digital representation is available prior to a time that the requested next sequential portion is required to be transmitted from the output port that is associated with the data buffer. The at least one storage node further includes a scheduler for scheduling a read request to the mass storage such that a next sequential portion of a digital representation is available for outputting, prior to the at least one storage node receiving a read request from one of the communication nodes.

    6.
    发明专利
    未知

    公开(公告)号：DE69515153T2

    公开(公告)日：2000-09-21

    申请号：DE69515153

    申请日：1995-09-05

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  FITCHETT LARRY WILLIAM ,  HENLEY MARTHA R ,  SAXENA ASHOK RAJ ,  STANSBURY BUDDY FLOYD ,  WYLLIE JAMES CHRISTOPHER

    IPC: G06F3/06 ,  H04L29/06 ,  H04N7/173

    Abstract: A video server system or media streamer 10 includes at least one control node 18; at least one storage node 16, 17 with mass storage for storing a digital representation of a video presentation; and a plurality of communication nodes 14 switchably coupled under the direction of the control node to the at least one storage node for receiving a video presentation therefrom. Each of the plurality of communication nodes is coupled to an adapter 212 by a communications bus 210, outputting a video presentation as a sequence of data bursts over the communications bus to the adapter, which converts the received sequence of data bursts to a substantially isochronous data stream. Each of the plurality of communication nodes further includes a plurality of output ports, each having an associated data buffer for buffering a portion of a digital representation prior to a transmission of the digital representation. Each of the plurality of communication nodes further includes a scheduler for scheduling, for individual data buffers, a read request to the storage nodes for a next sequential portion of the digital representation for storage within the data buffers. Each read request is scheduled at a predetermined time such that a requested next sequential portion of the digital representation is available prior to a time that the requested next sequential portion is required to be transmitted from the output port that is associated with the data buffer. The at least one storage node further includes a scheduler for scheduling a read request to the mass storage such that a next sequential portion of a digital representation is available for outputting, prior to the at least one storage node receiving a read request from one of the communication nodes.

    8.
    发明专利
    未知

    公开(公告)号：DE69516346D1

    公开(公告)日：2000-05-25

    申请号：DE69516346

    申请日：1995-08-25

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  CLEARY LOUISE IRENE ,  ELDRIDGE JAMES W ,  FITCHETT LARRY WILLIAM ,  LUNING STEPHEN G ,  MURRAY CHRISTOPHER S ,  OLNOWICH HOWARD T ,  SAXENA ASHOK RAJ ,  SCHUBERT KARL DAVID ,  STANSBURY BUDDY FLOYD

    IPC: H04N5/93 ,  H04H20/42 ,  H04N5/765 ,  H04N7/173 ,  H04N21/218 ,  H04N21/226 ,  H04N21/238 ,  H04N21/262

    Abstract: A media streamer (10) includes at least one storage node (16, 17) for storing a digital representation of a video presentation. The video presentation requires a time T to present in its entirety, and is stored as a plurality of N data blocks, each data block storing data corresponding approximately to a T/N period of the video presentation. The media streamer further includes a plurality of communication nodes (14) each having at least one input port and at least one output port; a circuit switch (18) connected between the at least one storage node and input ports of the plurality of communication nodes, the circuit switch selectively coupling one or more of the input ports to the at least one storage node to enable the digital representation stored thereat to appear at one or more of the output ports; and at least one control node (18) coupled at least to the plurality of communication nodes and to the at least one storage node for enabling any one of the N blocks to appear at any output port of any of the plurality of communication nodes.

    9.
    发明专利
    未知

    公开(公告)号：AT192007T

    公开(公告)日：2000-05-15

    申请号：AT95305964

    申请日：1995-08-25

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  CLEARY LOUISE IRENE ,  ELDRIDGE JAMES W ,  FITCHETT LARRY WILLIAM ,  LUNING STEPHEN G ,  MURRAY CHRISTOPHER S ,  OLNOWICH HOWARD T ,  SAXENA ASHOK RAJ ,  SCHUBERT KARL DAVID ,  STANSBURY BUDDY FLOYD

    IPC: H04N5/93 ,  H04H20/42 ,  H04N5/765 ,  H04N7/173 ,  H04N21/218 ,  H04N21/226 ,  H04N21/238 ,  H04N21/262

    Abstract: A media streamer (10) includes at least one storage node (16, 17) for storing a digital representation of a video presentation. The video presentation requires a time T to present in its entirety, and is stored as a plurality of N data blocks, each data block storing data corresponding approximately to a T/N period of the video presentation. The media streamer further includes a plurality of communication nodes (14) each having at least one input port and at least one output port; a circuit switch (18) connected between the at least one storage node and input ports of the plurality of communication nodes, the circuit switch selectively coupling one or more of the input ports to the at least one storage node to enable the digital representation stored thereat to appear at one or more of the output ports; and at least one control node (18) coupled at least to the plurality of communication nodes and to the at least one storage node for enabling any one of the N blocks to appear at any output port of any of the plurality of communication nodes.

    10.
    发明专利
    未知

    公开(公告)号：AT189944T

    公开(公告)日：2000-03-15

    申请号：AT95306239

    申请日：1995-09-05

    Applicant: IBM

    Inventor： BELKNAP WILLIAM RUSSELL ,  FITCHETT LARRY WILLIAM ,  HENLEY MARTHA R ,  SAXENA ASHOK RAJ ,  STANSBURY BUDDY FLOYD ,  WYLLIE JAMES CHRISTOPHER

    IPC: G06F3/06 ,  H04L29/06 ,  H04N7/173

    Abstract: A video server system or media streamer 10 includes at least one control node 18; at least one storage node 16, 17 with mass storage for storing a digital representation of a video presentation; and a plurality of communication nodes 14 switchably coupled under the direction of the control node to the at least one storage node for receiving a video presentation therefrom. Each of the plurality of communication nodes is coupled to an adapter 212 by a communications bus 210, outputting a video presentation as a sequence of data bursts over the communications bus to the adapter, which converts the received sequence of data bursts to a substantially isochronous data stream. Each of the plurality of communication nodes further includes a plurality of output ports, each having an associated data buffer for buffering a portion of a digital representation prior to a transmission of the digital representation. Each of the plurality of communication nodes further includes a scheduler for scheduling, for individual data buffers, a read request to the storage nodes for a next sequential portion of the digital representation for storage within the data buffers. Each read request is scheduled at a predetermined time such that a requested next sequential portion of the digital representation is available prior to a time that the requested next sequential portion is required to be transmitted from the output port that is associated with the data buffer. The at least one storage node further includes a scheduler for scheduling a read request to the mass storage such that a next sequential portion of a digital representation is available for outputting, prior to the at least one storage node receiving a read request from one of the communication nodes.

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