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    Method and system for fast channel change in a communication device
    1.
    发明授权
    Method and system for fast channel change in a communication device 有权
    通信设备中快速通道改变的方法和系统

    公开(公告)号：US08312488B2

    公开(公告)日：2012-11-13

    申请号：US11680493

    申请日：2007-02-28

    申请人： Ian Wheelock

    发明人： Ian Wheelock

    IPC分类号： G06F3/00 ,  G06F13/00 ,  H04N5/445

    CPC分类号： H04N7/17309 ,  H04L12/1859 ,  H04L12/2801 ,  H04N21/23424 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/47202 ,  H04N21/4821 ,  H04N21/6405

    摘要： A stream request is generated based on the stream address of a corresponding program selected from an electronic program guide that associates programs with corresponding IP multicast stream addresses by a subscriber/user device. The stream request is sent from the subscriber device to a broadband device, which compares the address in the request to available stream information listed in a content guide. The content guide contains information for all multicast streams that are available from a CMTS to the broadband device over DS channels of the current MAC domain. The broadband device locks to the stream that corresponds to the request, including tuning to a different DS channel if necessary. The broadband device may request another MAC domain if the stream is not available from the current one. After locking to a desired stream, the broadband device informs the CMTS so that it can adjust content guide user counts.

    摘要翻译： 基于从由用户/用户设备将节目与相应的IP多播流地址相关联的电子节目指南中选择的相应节目的流地址生成流请求。 流请求从订户设备发送到宽带设备，宽带设备将请求中的地址与内容指南中列出的可用流信息进行比较。 内容指南包含通过当前MAC域的DS信道从CMTS到宽带设备可用的所有多播流的信息。 宽带设备锁定到与请求相对应的流，包括如果需要调整到不同的DS信道。 如果流从当前的流不可用，宽带设备可以请求另一MAC域。 在锁定到期望的流之后，宽带设备通知CMTS，使得它可以调整内容指南用户计数。

    METHOD AND SYSTEM FOR FAST CHANNEL CHANGE IN A COMUNICATION DEVICE
    2.
    发明申请
    METHOD AND SYSTEM FOR FAST CHANNEL CHANGE IN A COMUNICATION DEVICE 有权
    用于通信设备中快速通道更改的方法和系统

    公开(公告)号：US20070204312A1

    公开(公告)日：2007-08-30

    申请号：US11680493

    申请日：2007-02-28

    申请人： Ian Wheelock

    发明人： Ian Wheelock

    IPC分类号： H04N7/173

    CPC分类号： H04N7/17309 ,  H04L12/1859 ,  H04L12/2801 ,  H04N21/23424 ,  H04N21/4384 ,  H04N21/44016 ,  H04N21/47202 ,  H04N21/4821 ,  H04N21/6405

    摘要： A stream request is generated based on the stream address of a corresponding program selected from an electronic program guide that associates programs with corresponding IP multicast stream addresses by a subscriber/user device. The stream request is sent from the subscriber device to a broadband device, which compares the address in the request to available stream information listed in a content guide. The content guide contains information for all multicast streams that are available from a CMTS to the broadband device over DS channels of the current MAC domain.The broadband device locks to the stream that corresponds to the request, including tuning to a different DS channel if necessary. The broadband device may request another MAC domain if the stream is not available from the current one. After locking to a desired stream, the broadband device informs the CMTS so that it can adjust content guide user counts.

    摘要翻译： 基于从由用户/用户设备将程序与相应的IP多播流地址相关联的电子节目指南中选择的对应节目的流地址生成流请求。 流请求从订户设备发送到宽带设备，宽带设备将请求中的地址与内容指南中列出的可用流信息进行比较。 内容指南包含通过当前MAC域的DS信道从CMTS到宽带设备可用的所有多播流的信息。 宽带设备锁定到与请求相对应的流，包括如果需要调整到不同的DS信道。 如果流从当前的流不可用，宽带设备可以请求另一MAC域。 在锁定到期望的流之后，宽带设备通知CMTS，使得它可以调整内容指南用户计数。

    Method and system for providing video and data traffic packets from the same device
    5.
    发明申请
    Method and system for providing video and data traffic packets from the same device 审中-公开
    用于从同一设备提供视频和数据流量数据包的方法和系统

    公开(公告)号：US20050123001A1

    公开(公告)日：2005-06-09

    申请号：US10982211

    申请日：2004-11-05

    申请人： Jeff Craven ,  Mark Bugajski ,  Charles Cheevers ,  Ian Wheelock ,  Denis Downey ,  Michael Harrington

    发明人： Jeff Craven ,  Mark Bugajski ,  Charles Cheevers ,  Ian Wheelock ,  Denis Downey ,  Michael Harrington

    IPC分类号： H04H20/77 ,  H04L20060101 ,  H04H1/04

    CPC分类号： H04J3/1682 ,  H04L12/2801 ,  H04L65/4076 ,  H04N7/17318 ,  H04N21/222 ,  H04N21/23614 ,  H04N21/2381 ,  H04N21/2383 ,  H04N21/2385 ,  H04N21/2665 ,  H04N21/4263 ,  H04N21/4348 ,  H04N21/4382 ,  H04N21/6118 ,  H04N21/6125 ,  H04N21/64322

    摘要： A device receives packets associated with a program stream at an addressable communications port, and assigns them to one of a plurality of QAM channels. Multiplexed program packets, DOCSIS data or multimedia packets or a combination of both, are transmitted over the QAM channel. DSG messaging transports requests for content to a server, transports queries to mapping tables and returns information from the tables to a manager that, along with processors, determine which channel to use for downstream transport of the multiplexed streams. The manager assigns a connection identifier corresponding to a channel and program number combination to the packets, and sends the identifier, via DSG, to the requesting/receiving user device; the identifier instructs the user device how to tune and receive the requested packets. The identifier may use seven bits for program numbers, two for output port number and two for channel frequency.

    摘要翻译： 设备在可寻址通信端口处接收与节目流相关联的分组，并将其分配给多个QAM信道之一。 多路复用程序包，DOCSIS数据或多媒体数据包或两者的组合通过QAM通道传输。 DSG消息传输对服务器的内容请求，将查询传输到映射表，并将表中的信息返回给管理者，管理者与处理器一起确定要用于多路复用流的下游传输的通道。 管理员将与通道和程序号组合对应的连接标识符分配给分组，并通过DSG将该标识符发送到请求/接收用户设备; 标识符指示用户设备如何调整和接收所请求的分组。 标识符可以使用七位用于程序号，两个用于输出端口号，另一个用于通道频率。

    Method and system for delivering video content using internet protocol over a coaxial cable
    6.
    发明申请
    Method and system for delivering video content using internet protocol over a coaxial cable 有权
    使用互联网协议通过同轴电缆传送视频内容的方法和系统

    公开(公告)号：US20070081537A1

    公开(公告)日：2007-04-12

    申请号：US11546455

    申请日：2006-10-11

    申请人： Ian Wheelock

    发明人： Ian Wheelock

    IPC分类号： H04L12/56

    CPC分类号： H04L29/06 ,  H04L47/15 ,  H04N7/17318 ,  H04N21/4383 ,  H04N21/6118 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/64322 ,  H04N21/6543

    摘要： Multicast information contained in a request from an IP TV set top box for video content to an IGMP manager is passed to an SA processor to perform a lookup of an SA table. A result of the lookup is the frequency of the downstream legacy channel over which the requested content is being delivered from an edge QAM device. The SA processor instructs a legacy QAM tuner to tune the determined frequency. The IGMP manager selects packets corresponding to the request content based on a program identifier that is associated with the multicast address in the SA table. As selected packets are received by the IGMP manager, multicast address information is placed into them, and they are passed on from the manager to the IP TV set top box. The IP TV set top box receives the requested content packets based on the multicast address.

    摘要翻译： 包含在来自用于视频内容的IP电视机顶盒到IGMP管理器的请求中的组播信息被传递到SA处理器以执行SA表的查找。 查找的结果是从边缘QAM设备传送所请求的内容的下游遗留信道的频率。 SA处理器指示传统的QAM调谐器来调节所确定的频率。 IGMP管理者根据与SA表中的组播地址相关联的节目标识符来选择与请求内容对应的分组。 当IGMP管理器接收到所选择的报文时，将组播地址信息放入其中，并将其从管理员传递到IP电视机顶盒。 IP电视机顶盒基于多播地址接收请求的内容分组。

    Method and system for delivering video content using internet protocol over a coaxial cable
    7.
    发明授权
    Method and system for delivering video content using internet protocol over a coaxial cable 有权
    使用互联网协议通过同轴电缆传送视频内容的方法和系统

    公开(公告)号：US08588249B2

    公开(公告)日：2013-11-19

    申请号：US11546455

    申请日：2006-10-11

    申请人： Ian Wheelock

    发明人： Ian Wheelock

    IPC分类号： H04L12/66 ,  H04L29/06

    CPC分类号： H04L29/06 ,  H04L47/15 ,  H04N7/17318 ,  H04N21/4383 ,  H04N21/6118 ,  H04N21/6125 ,  H04N21/6405 ,  H04N21/64322 ,  H04N21/6543

    摘要： Multicast information contained in a request from an IP TV set top box for video content to an IGMP manager is passed to an SA processor to perform a lookup of an SA table. A result of the lookup is the frequency of the downstream legacy channel over which the requested content is being delivered from an edge QAM device. The SA processor instructs a legacy QAM tuner to tune the determined frequency. The IGMP manager selects packets corresponding to the request content based on a program identifier that is associated with the multicast address in the SA table. As selected packets are received by the IGMP manager, multicast address information is placed into them, and they are passed on from the manager to the IP TV set top box. The IP TV set top box receives the requested content packets based on the multicast address.

    摘要翻译： 包含在来自用于视频内容的IP TV机顶盒到IGMP管理器的请求中的组播信息被传递到SA处理器以执行SA表的查找。 查找的结果是从边缘QAM设备传送所请求的内容的下游遗留信道的频率。 SA处理器指示传统的QAM调谐器来调节所确定的频率。 IGMP管理者根据与SA表中的组播地址相关联的节目标识符来选择与请求内容对应的分组。 当IGMP管理器接收到所选择的报文时，将组播地址信息放入其中，并将其从管理员传递到IP电视机顶盒。 IP电视机顶盒基于多播地址接收请求的内容分组。