专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明授权

US09008191B2 Video compression encoder 有权
标题翻译：视频压缩编码器
公开(公告)号：US09008191B2
公开(公告)日：2015-04-14
申请号：US13749219
申请日：2013-01-24
申请人： Avocent Corporation
发明人： William A. Dambrackas , Mario Costa , George Richard Goodley
IPC分类号： H04B1/66 , H04N19/20 , H04N19/105 , H04N19/593 , H04N19/182 , H04N19/426 , H04N19/93 , H04N19/507 , H04N11/04
CPC分类号： H04N19/20 , G09G2370/24 , H04N19/105 , H04N19/182 , H04N19/426 , H04N19/507 , H04N19/593 , H04N19/93
摘要： A video compression encoder which does not require a video frame buffer is disclosed. Without a frame buffer, incoming pixels can not be compared to pixels previously sent to the decoder. Instead, the disclosed encoder only stores check values for groups of pixels sent. If a group's check value has not changed, the encoder sends a command to the decoder not to change that pixel group. Also, without a frame buffer, an incoming video frame can not be captured and later sent to the decoder as network throughput permits. Instead, if throughput is insufficient to send an encoded group of pixels, the encoder leaves the check value for that group unchanged and sends a command instructing the decoder not to change those pixels. This defers updating that group until the next screen update is sent to the decoder. Grouping of pixels can be done in any fashion, for example; a group can be a single video line, a portion of a line, multiple lines or screen rectangles containing portions of multiple lines.
摘要翻译：公开了一种不需要视频帧缓冲器的视频压缩编码器。没有帧缓冲区，输入像素不能与先前发送到解码器的像素进行比较。相反，所公开的编码器仅存储发送的像素组的检查值。如果组的检查值没有改变，则编码器向解码器发送命令，不改变该像素组。而且，如果没有帧缓冲器，则不能捕获进入的视频帧，并随后以网络吞吐量允许的方式将其发送到解码器。相反，如果吞吐量不足以发送编码的像素组，则编码器保持该组的检查值不变，并发送指令解码器不改变这些像素的命令。这会延迟更新该组，直到下一个屏幕更新被发送到解码器。像素的分组可以以任何方式完成，例如; 组可以是单个视频行，一行的一部分，多行或屏幕矩形，其包含多行的部分。

IPRDB

热门服务

关于我们

友情链接

联系方式