More usefully, because rsync can synchronize to a remote system, you can use it to create an automatic and remote backup without having to separately copy the files to the remote system.

更有意义的是，因为rsync可以同步到远程系统，所以可以使用它自动创建远程备份，不需要把备份文件单独复制到远程系统。

youdao

Available to broadcasters, cable companies, publishers, content providers and others, TVSync's open API leverages the best video and audio ACR (Automatic Content Recognition) technology of the industry leader Vobile to facilitate exciting new applications that synchronize, in real time, to the content a user is consuming.

ENGADGET: TVSync API unveiled, helps devs build second-screen and smart TV apps