A method and apparatus for detecting a high definition television signal (e.g., a high definition MPEG2 data stream) and re-encoding the high definition signal to create a standard definition television signal. In particular, the apparatus involves re-encoding a copy of the high definition (HD) signal...http://www.google.com/patents/US6765966?utm_source=gb-gplus-sharePatent US6765966 - Methods and apparatus for re-encoding a high definition television signal to create a standard definition television signal
