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1. 发明授权

US09137502B2 Method and system for fast digital channel change utilizing time-stamp management 有权
标题翻译：利用时间戳管理实现快速数字通道更换的方法和系统
公开(公告)号：US09137502B2
公开(公告)日：2015-09-15
申请号：US12874424
申请日：2010-09-02
申请人： Alex Pelts , Jeffrey Fisher , David Erickson , Jong-Hon Theodore Na
发明人： Alex Pelts , Jeffrey Fisher , David Erickson , Jong-Hon Theodore Na
IPC分类号： H04N7/12 , H04N7/52 , H04N21/438 , H04N21/43
CPC分类号： H04N21/4384 , H04N7/52 , H04N21/42615 , H04N21/4263 , H04N21/4302 , H04N21/44004
摘要： A video stream demultiplexer receives video streams including a selected current content channel and one or more adjacent content channels. Time stamp management may be concurrently performed on the adjacent content channels while decoding the selected current content channel. Timing information such as Decoding Time Stamp, Presentation Time Stamp values, or random access points may be determined for pictures of the selected current content channel and the adjacent content channels. The determined timing information may be utilized to determine a Program Clock Reference value for the selected current channel and the adjacent channels. A timebase, derived from a PCR rate, may be determined for decoding the selected current content channel. An adjacent content channel, which is primed during decoding of the selected current content channel, may be directly decoded for display if selected.
摘要翻译：视频流解复用器接收包括所选择的当前内容频道和一个或多个相邻内容频道的视频流。在对所选择的当前内容信道进行解码的同时，可以在相邻内容信道上同时执行时间戳管理。可以为所选择的当前内容频道和相邻内容频道的图片确定诸如解码时间戳，显示时间戳值或随机接入点之类的定时信息。所确定的定时信息可用于确定所选择的当前信道和相邻信道的节目时钟参考值。可以确定从PCR速率导出的时基，用于对所选择的当前内容信道进行解码。在所选择的当前内容信道的解码期间被引用的相邻内容信道可以被直接解码以供显示，如果选择的话。

2. 发明申请

US20120002731A1 METHOD AND SYSTEM FOR FAST DIGITAL CHANNEL CHANGE UTILIZING TIME-STAMP MANAGEMENT 有权
标题翻译：使用时间戳管理的快速数字通道更改的方法和系统
公开(公告)号：US20120002731A1
公开(公告)日：2012-01-05
申请号：US12874424
申请日：2010-09-02
申请人： Alex Pelts , Jeffrey Fisher , David Erickson , Jong-Hon Theodore Na
发明人： Alex Pelts , Jeffrey Fisher , David Erickson , Jong-Hon Theodore Na
IPC分类号： H04N7/26
CPC分类号： H04N21/4384 , H04N7/52 , H04N21/42615 , H04N21/4263 , H04N21/4302 , H04N21/44004
摘要： A video stream demultiplxer receives video streams comprising a selected current content channel and one or more adjacent content channels. Time stamp management is concurrently performed on the adjacent content channels while decoding the selected current content channel. Timing information such as Decoding Time Stamp (DTS) and Presentation Time Stamp (PTS) values, and/or random access points (RAPs) may be determined for pictures stored for the selected current content channel and the adjacent content channels. The determined timing information is utilized to determine a Program Clock Reference (PCR) value for each of the selected current channel and the adjacent channels for channel monitoring. A timebase, derived from a PCR rate that is determined based on the determined PCR value, is determined for decoding the selected current content channel. An adjacent content channel, which is primed during decoding of the selected current content channel, may be directly decoded for display if selected.
摘要翻译：视频流分解器接收包括所选择的当前内容频道和一个或多个相邻内容频道的视频流。在对所选择的当前内容信道进行解码的同时，在相邻内容信道上同时执行时间戳管理。可以为针对所选择的当前内容频道和相邻内容频道存储的图片确定诸如解码时间戳（DTS）和显示时间戳（PTS）值和/或随机接入点（RAP）的定时信息。确定的定时信息用于确定用于信道监视的所选择的当前信道和相邻信道中的每一个的节目时钟参考（PCR）值。确定从基于所确定的PCR值确定的PCR速率导出的时基，用于对所选择的当前内容信道进行解码。在所选择的当前内容信道的解码期间被引用的相邻内容信道可以被直接解码以供显示，如果选择的话。

3. 发明申请

US20100329354A1 SYSTEMS AND METHODS FOR ACHIEVING OPTIMAL DIGITAL VIDEO CHANNEL CHANGE PERFORMANCE 审中-公开
标题翻译：实现最佳数字视频信道变化性能的系统和方法
公开(公告)号：US20100329354A1
公开(公告)日：2010-12-30
申请号：US12493464
申请日：2009-06-29
申请人： Marcus Kellerman , Jeffrey P. Fisher , Alex Pelts
发明人： Marcus Kellerman , Jeffrey P. Fisher , Alex Pelts
IPC分类号： H04N11/02
CPC分类号： H04N21/8455 , H04N21/4384 , H04N21/44004
摘要： A method providing digital video channel change performance according to the invention is provided. The method may include decoding stored data packets associated with a first program. The method may also include displaying the decoded data packets associated with the first program. The method may further include demultiplexing a plurality of data packets associated with a second program and storing the plurality of data packets associated with the second program. The stored data packets associated with the second program may include a first random access point. The method may also include maintaining data associated with the first random access point until data associated with a second random access point is received.
摘要翻译：提供了一种根据本发明提供数字视频通道改变性能的方法。该方法可以包括解码与第一程序相关联的存储数据分组。该方法还可以包括显示与第一程序相关联的解码数据分组。该方法还可以包括解复用与第二程序相关联的多个数据分组并存储与第二程序相关联的多个数据分组。与第二程序相关联的所存储的数据分组可以包括第一随机接入点。该方法还可以包括维护与第一随机接入点相关联的数据，直到接收到与第二随机接入点相关联的数据。

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