Patent ID: 7562225
Filing Date: 2009-07-14
Classification: H04L,H04N

Abstract:
1. A timecode generation method comprising: receiving an encryption key and an implemented encryption method; for each one of a plurality of frames, receiving a timecode and an associated presentation time stamp (PTS) associated with the one frame; for each one of the plurality of frames, encrypting the timecode associated with the one frame using the encryption key and the implemented encryption method, thereby producing a plurality of encrypted timecodes; and for each one of the plurality of encrypted timecodes, placing the encrypted timecode in an encryption container, thereby producing a plurality of encryption containers, each containing an encrypted timecode; and for each one of the plurality of frames, for a time associated with the associated PTS associated with the one frame, inserting the encryption container containing the encrypted timecode associated with the one frame in a packetized elementary stream (PES), thereby outputting a packetized elementary stream (PES) comprising the plurality of encrypted timecodes.