Content is received by a personal video recorder (PVR) through a port and is analyzed by a filter based on a set of predetermined criteria to determine if it matches the characteristics of the device, the rendering means associated with the device and/or the preferences of a user. The content characteristics...http://www.google.com.hk/patents/US20060095410?utm_source=gb-gplus-share專利 US20060095410 - Personal video recorder for home network providing filtering and format conversion of content
