According to the present invention, a database is prepared on the basis of the type of processing performed on the image data and a delay amount generated in the image data. The delay amount corresponding to the type of processing performed on the image data is read from the database, and delay processing...http://www.google.com.tw/patents/US6862044?utm_source=gb-gplus-share專利 US6862044 - Digital broadcast receiving apparatus for restoring and synchronizing sound and image data and control method thereof
