Invention Grant
US07995576B2 Method and system for reducing latency in a multi-channel multicast streaming environment in content-delivery networks
有权
用于在内容传送网络中减少多频道多播流环境中的延迟的方法和系统
- Patent Title: Method and system for reducing latency in a multi-channel multicast streaming environment in content-delivery networks
- Patent Title (中): 用于在内容传送网络中减少多频道多播流环境中的延迟的方法和系统
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Application No.: US11496314Application Date: 2006-07-31
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Publication No.: US07995576B2Publication Date: 2011-08-09
- Inventor: Balaji Venkat Venkataswami , Ganesan Velrajan , Srinivasan Santhanam
- Applicant: Balaji Venkat Venkataswami , Ganesan Velrajan , Srinivasan Santhanam
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Fish & Richardson P.C.
- Main IPC: H04L12/56
- IPC: H04L12/56
Abstract:
Methods, systems and apparatus for reducing apparent latency in content-delivery networks are provided. Sources multicast certain ‘preview multicast streams’ to multiple subscribers. These preview multicast streams provide pre-recorded content of multicast streams. When a subscriber switches to a desired multicast stream, pre-recorded content of the desired multicast stream is reconstructed from a preview multicast stream. Thereafter, the pre-recorded content is played during the setup of the new multicast distribution tree to minimize latency. Once the distribution tree is setup, live content of the desired multicast stream is made available to the subscriber.
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