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1. 发明授权

US5761417A Video data streamer having scheduler for scheduling read request for individual data buffers associated with output ports of communication node to one storage node 失效
公开(公告)号：US5761417A
公开(公告)日：1998-06-02
申请号：US302626
申请日：1994-09-08
申请人： Martha R. Henley , James Christopher Wyllie , Ashok Raj Saxena
发明人： Martha R. Henley , James Christopher Wyllie , Ashok Raj Saxena
IPC分类号： H04N5/93 , G06F3/06 , G06F12/00 , H04L29/06 , H04N5/765 , H04N7/16 , H04N7/173 , H04N21/2183 , H04N21/238 , H04N21/262 , G06F13/00
CPC分类号： G06F3/061 , G06F3/0656 , G06F3/0659 , G06F3/0689 , H04L29/06
摘要： A media streamer (10) includes at least one storage node (16, 17) comprising mass storage for storing a digital representation of at least one video presentation; and a plurality of communication nodes (14) each having at least one input port that is coupled to an output of the at least one storage node for receiving a digital representation of a video presentation therefrom. Each of the plurality of communication nodes further includes a plurality of output ports, individual ones of the plurality of output ports being operable for transmitting a digital representation as a data stream to a consumer of the digital representation. Individual ones of the output ports also have 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 ones of the data buffers, a read request to the at least one storage node for a next sequential portion of the digital representation for storage within individual ones of the data buffers. Each read request for a particular individual one of the data buffers is scheduled at a predetermined time such that a requested next sequential portion of the digital representation is available to a requesting communications node 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 for which the read request was scheduled. 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 for the next sequential portion from one of the communication nodes.

2. 发明授权

US5712976A Video data streamer for simultaneously conveying same one or different ones of data blocks stored in storage node to each of plurality of communication nodes 失效
标题翻译：视频数据流传送器，用于将存储在存储节点中的相同的一个或多个数据块同时传送到多个通信节点中的每一个
公开(公告)号：US5712976A
公开(公告)日：1998-01-27
申请号：US302624
申请日：1994-09-08
申请人： Lorenzo Falcon, Jr. , Ashok Raj Saxena
发明人： Lorenzo Falcon, Jr. , Ashok Raj Saxena
IPC分类号： G06F12/00 , G06F3/06 , G11B20/12 , H04N5/76 , H04N5/92 , H04N7/16 , H04N7/173 , H04N21/2318 , H04N21/262 , G06F13/00
CPC分类号： H04N21/21 , G06F3/0601 , H04N21/23 , H04N7/17336 , G06F2003/0691 , G06F2003/0692
摘要： A media streamer (10) includes at least one storage node (16) including mass storage for storing a digital representation of at least one video presentation. The mass storage is comprised of a plurality of mass storage units. The at least one video presentation requires a time T to present in its entirety, and is stored as a plurality of N data blocks. Each data block stores data corresponding to approximately 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 that is coupled to an output of the at least one storage node for receiving a digital representation of a video presentation therefrom. Each of the plurality of communication nodes further includes a plurality of output ports individual ones of which transmit a digital representation as a data stream to a consumer of the digital representation. The N data blocks of the digital representation are partitioned into X stripes, wherein data blocks 1, X+1, 2*X+1, . . . etc., are associated with a first one of the X stripes, data blocks 2, X+2, 2*X+2, . . . etc., are associated with a second one of the X stripes, etc., and wherein individual ones of the X stripes are each stored on a different one of the plurality of mass storage units. The plurality of mass storage units preferably store a single copy of a digital representation of a video presentation. The X stripes are read out in such a manner as to enable a plurality of data streams to simultaneously convey a same one of the N data blocks, or are read out in such a manner as to enable a plurality of data streams to simultaneously convey a different one of the N data blocks.
摘要翻译：媒体流分送器（10）包括至少一个存储节点（16），其包括大容量存储器，用于存储至少一个视频呈现的数字表示。大容量存储器由多个大容量存储单元组成。至少一个视频呈现需要时间T来呈现整体，并且被存储为多个N个数据块。每个数据块存储与视频呈现的大约T / N周期相对应的数据。媒体流传送器还包括多个通信节点（14），每个通信节点具有耦合到至少一个存储节点的输出的至少一个输入端口，用于从其接收视频呈现的数字表示。多个通信节点中的每一个还包括多个输出端口，其中各个输出端口将数字表示作为数据流发送给数字表示的消费者。数字表示的N个数据块被划分为X条纹，其中数据块1，X + 1,2 * X + 1，...。。。与X条纹，数据块2，X + 2，2 * X + 2，...中的第一条相关联。。。等等，与X条纹等中的第二条纹相关联，并且其中X条纹中的各个条纹各自存储在多个质量存储单元中的不同的一个。多个大容量存储单元优选地存储视频呈现的数字表示的单个副本。读出X条纹，使得多个数据流能够同时传送N个数据块中的相同数据块，或者以允许多个数据流同时传送一个数据流的方式被读出不同的N个数据块之一。

3. 发明授权

US5668948A Media streamer with control node enabling same isochronous streams to appear simultaneously at output ports or different streams to appear simultaneously at output ports 失效
标题翻译：具有控制节点的媒体流传输器能够使同步的同步流同时出现在输出端口或不同的流中，同时出现在输出端口
公开(公告)号：US5668948A
公开(公告)日：1997-09-16
申请号：US302625
申请日：1994-09-08
申请人： William Russell Belknap , Louise Irene Cleary , James W. Eldridge , Larry William Fitchett , Stephen G. Luning , Christopher S. Murray , Howard T. Olnowich , Ashok Raj Saxena , Karl David Schubert , Buddy Floyd Stansbury
发明人： William Russell Belknap , Louise Irene Cleary , James W. Eldridge , Larry William Fitchett , Stephen G. Luning , Christopher S. Murray , Howard T. Olnowich , Ashok Raj Saxena , Karl David Schubert , Buddy Floyd Stansbury
IPC分类号： H04N5/93 , H04H20/42 , H04N5/765 , H04N7/173 , H04N21/218 , H04N21/226 , H04N21/238 , H04N21/262 , G06F9/00
CPC分类号： H04H20/42 , H04H60/04 , H04N21/21 , H04N21/23 , H04N7/17336 , H04H60/06
摘要： 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.
摘要翻译：媒体流分送器（10）包括用于存储视频呈现的数字表示的至少一个存储节点（16,17）。视频演示需要时间T来整体呈现，并且被存储为多个N个数据块，每个数据块存储大约对应于视频呈现的T / N周期的数据。媒体流传送器还包括多个通信节点（14），每个通信节点具有至少一个输入端口和至少一个输出端口; 连接在所述至少一个存储节点和所述多个通信节点的输入端口之间的电路开关（18），所述电路开关选择性地将所述输入端口中的一个或多个耦合到所述至少一个存储节点，以使得能够存储所述数字表示出现在一个或多个输出端口; 以及至少一个控制节点（18），其至少耦合到所述多个通信节点和所述至少一个存储节点，用于使所述N个块中的任何一个出现在所述多个通信节点中的任一个的任何输出端口处。

4. 发明授权

US5805821A Video optimized media streamer user interface employing non-blocking switching to achieve isochronous data transfers 失效
公开(公告)号：US5805821A
公开(公告)日：1998-09-08
申请号：US906567
申请日：1997-08-05
申请人： Ashok Raj Saxena , Pong-Sheng Wang
发明人： Ashok Raj Saxena , Pong-Sheng Wang
IPC分类号： G06F3/06 , G06F12/00 , H04N5/765 , H04N5/92 , H04N5/93 , H04N7/173 , H01J13/00
CPC分类号： H04N21/21 , H04N21/23 , H04N7/17336
摘要： A media streamer (10) includes at least one control node (18); a user interface (64, 65, 66) having an output coupled to the at least one control node; at least one storage node (16, 17) for storing a digital representation of at least one video presentation; and a plurality of communication nodes (14) each having an input port for receiving a digital representation of at least one video presentation therefrom. 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 stores data corresponding to a T/N period of the video presentation. Each communication nodes further has a plurality of output ports for outputting a digital representation. A circuit switch (12) is connected between the at least one storage node and the input ports of communication nodes for coupling one or more input ports to the at least one storage node. The user interface includes a capability for specifying commands for execution, and the at least one control node is responsive to individual ones of the commands for controlling at least one of the at least one storage node and at least one of the plurality of communication nodes, in cooperation with the circuit switch, so as to execute a function associated with individual ones of the commands. The commands may include video cassette recorder-like commands that include commands selected from a group that includes a Load command, an Eject command, a Play command, a Slow command, a Fast Forward command, a Pause command, a Stop command, a Rewind command, and a Mute command. The commands may also include commands selected from a group that includes a Play List command, a Play Length command, and a Batch command. A synchronous application program interface (API) is provided for coupling, via the user interface, a user application program to the at least one control node. The API includes Remote Procedure Call (RPC) procedures.

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