专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP0973329A2 HDTV video frame synchronizer that provides clean digital video without variable delay 有权转让
标题翻译： HDTV视频帧同步器，可提供干净的数字视频而不会产生可变延迟
公开(公告)号：EP0973329A2
公开(公告)日：2000-01-19
申请号：EP99112490.0
申请日：1999-07-01
申请人： General Instrument Corporation
发明人： Nemiroff, Robert , Kaku, Vicky B.
IPC分类号： H04N5/073
CPC分类号： H04N5/0736 , H04N7/56 , H04N19/895
摘要： A system for processing a sequence of video or other data frames at a data encoder (100) during a sync loss. During a sync loss of input data at a video or other data encoder, substitute data such as black video (142) is used to provide complete "clean" data frames to a compressor (150) at the encoder (100). Artifacts due to compression and encoding of partial frames are avoided. If a sync loss is detected in the middle of a particular data frame that is input to the encoder, the remainder of the frame is completed with substitute data (142) which is in sync with the earlier data in the frame. Additional complete frames of the substitute data are provided to the compressor (150) following the particular data frame, still in sync with the particular frame, until such time that a sync recovery is detected, and a field or frame check is performed on the new, post-sync loss, data to gain confidence of the sync recovery. A null signal (143) may be provided to the compressor after the last substitute frame, and prior to the post-sync loss frame after the frame in which the field or frame check occurs. Different frame and video clock rates in the post- versus pre-sync loss frames are automatically accounted for.
摘要翻译：一种用于在同步丢失期间在数据编码器（100）处理视频或其他数据帧序列的系统。在视频或其他数据编码器处的输入数据同步丢失期间，诸如黑色视频（142）的替代数据被用于在编码器（100）处向压缩器（150）提供完整的“干净”数据帧。避免了由于部分帧的压缩和编码造成的伪像。如果在输入到编码器的特定数据帧的中间检测到同步丢失，则帧的其余部分用替换数据（142）完成，该数据与帧中较早的数据同步。替代数据的附加完整帧在特定数据帧之后被提供给压缩器（150），仍然与特定帧同步，直到检测到同步恢复为止，并且对新的帧执行字段或帧检查，同步丢失后的数据，以获得同步恢复的信心。空信号（143）可以在最后的替代帧之后并且在发生场或帧检查的帧之后的后同步丢失帧之前提供给压缩器。自动处理后处理与预处理丢失帧中的不同帧和视频时钟速率。

2. 发明授权

EP0973329B1 HDTV video frame synchronizer that provides clean digital video without variable delay 有权转让
标题翻译： HDTV的帧同步系统，该系统提供了一个干净的数字信号，而不可变延迟
公开(公告)号：EP0973329B1
公开(公告)日：2005-09-07
申请号：EP99112490.0
申请日：1999-07-01
申请人： GENERAL INSTRUMENT CORPORATION
发明人： Nemiroff, Robert , Kaku, Vicky B.
IPC分类号： H04N5/073 , H04N5/04
CPC分类号： H04N5/0736 , H04N7/56 , H04N19/895

3. 发明公开

EP0973329A3 HDTV video frame synchronizer that provides clean digital video without variable delay 有权转让
标题翻译： HDTV的帧同步系统，该系统提供了一个干净的数字信号，而不可变延迟
公开(公告)号：EP0973329A3
公开(公告)日：2000-10-25
申请号：EP99112490.0
申请日：1999-07-01
申请人： General Instrument Corporation
发明人： Nemiroff, Robert , Kaku, Vicky B.
IPC分类号： H04N5/073 , H04N5/04
CPC分类号： H04N5/0736 , H04N7/56 , H04N19/895
摘要： A system for processing a sequence of video or other data frames at a data encoder (100) during a sync loss. During a sync loss of input data at a video or other data encoder, substitute data such as black video (142) is used to provide complete "clean" data frames to a compressor (150) at the encoder (100). Artifacts due to compression and encoding of partial frames are avoided. If a sync loss is detected in the middle of a particular data frame that is input to the encoder, the remainder of the frame is completed with substitute data (142) which is in sync with the earlier data in the frame. Additional complete frames of the substitute data are provided to the compressor (150) following the particular data frame, still in sync with the particular frame, until such time that a sync recovery is detected, and a field or frame check is performed on the new, post-sync loss, data to gain confidence of the sync recovery. A null signal (143) may be provided to the compressor after the last substitute frame, and prior to the post-sync loss frame after the frame in which the field or frame check occurs. Different frame and video clock rates in the post- versus pre-sync loss frames are automatically accounted for.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式