System for detecting start codes in MPEG video streams and method of operating the same
Patent 6963612 Issued on November 8, 2005. Estimated Expiration Date: 
August 31, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 31, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for ensuring synchronization of MPEG-1 data carried in an MPEG-2 transport stream Patent #: 5726989 InventorAssigneeApplicationNo. 09944729 filed on 08/31/2001US Classes:375/240.25, Specific decompression process375/240.01, Television or motion video signal375/240.26, Associated signal processing375/240.28SynchronizationExaminersPrimary: Lee, YoungAttorney, Agent or FirmInternational ClassesH04N007/12H04N007/12 AbstractAn exemplary MPEG decoder is capable of decoding received bitstreams and generating PES packets. The MPEG decoder includes a controller that detects start codes in the received bitstreams, each of such codes having a three-byte start code prefix and a one-byte start code value. The controller is operable to (i) fetch a thirty-two bit word of a received bitstream, (ii) determine whether a start code prefix and a start code value are properly aligned within the thirty-two bit word, and (iii) if not properly aligned within the thirty-two bit word, determine that the thirty-two bit word does not contain any portion of the start code prefix based solely on a determination that a least significant byte of the thirty-two bit word is not part of the start code prefix. | |
