开发工具:
文件大小: 137kb
下载次数: 0
上传时间: 2008-12-18
详细说明： Introduction When ITU-R BT.601, formally CCIR-601, was developed (which defined the YCbCr color space, the 4:2:2 YCbCr sampling organization, and sampling resolutions), it was soon followed by ITU-R BT.656 (formally CCIR-656). BT.656 defined the parallel and serial interfaces for transmitting 4:2:2 YCbCr digital video between equipment in studio and pro-video applications. Active video resolutions are either 720 x 486 (525/60 video systems) or 720 x 576 (625/50 video systems). The BT.656 para llel interface uses 8 or 10 bits of multiplexed YCbCr data and a 27MHz clock (ECL levels are used for the data and clock signals). Instead of the conventional video timing signals (HSYNC, VSYNC, and BLANK) also being transmitted, BT.656 uses unique timing codes embedded within the video stream. This reduces the number of wires (and IC pins) required for a BT.656 video interface. Ancillary digital information (such as audio, closed captioning, and teletext) may also be transmitted during the blanking intervals. This eliminates the need for a separate audio interface and additional control signals. ...展开收缩
(系统自动生成,下载前可以参看下载内容)
下载文件列表
相关说明
- 本站资源为会员上传分享交流与学习,如有侵犯您的权益,请联系我们删除.
- 本站是交换下载平台，提供交流渠道，下载内容来自于网络，除下载问题外，其它问题请自行百度。
- 本站已设置防盗链，请勿用迅雷、QQ旋风等多线程下载软件下载资源，下载后用WinRAR最新版进行解压.
- 如果您发现内容无法下载，请稍后再次尝试；或者到消费记录里找到下载记录反馈给我们.
- 下载后发现下载的内容跟说明不相乎，请到消费记录里找到下载记录反馈给我们，经确认后退回积分.
- 如下载前有疑问，可以通过点击"提供者"的名字，查看对方的联系方式，联系对方咨询.
