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 Replay bit stream searching

Details
Inventors: Schultz, Mark Alan; Willis, Donald Henry; Xie, Jianlei; Hague, John Alan; Barron, Steven Anthony; Canfield, Barth Alan;
Assignee: Thomson Licensing S.A. (Boulogne Cedex, FR)
Primary Examiner: Boccio; Vincent F.
Assistant Examiner:
Attorney, Agent or Firm: Tripoli; Joseph S., Fried; Harvey D., Davenport; Francis A.

An apparatus for reproducing a digitally encoded signal from a medium, comprises a transducer for transducing the digitally encoded signal and generating a bit stream therefrom. A processor is coupled to receive the bit stream for controllably processing the bit stream. A memory is coupled to the processor for storing the processed bit stream information. A controller is coupled to control the memory and the processor for controlling identification of information within the bit stream, wherein the controller controls the processor to identify a specific sector type in the bit stream and responsive to the specific sector identification the controller controls the memory for storing the identified specific sector.

DETAILED DESCRIPTION In an inventive arrangement, an apparatus reproduces a digitally encoded signal from a medium.
The apparatus comprises a transducer for transducing the digitally encoded signal and generating a bit stream therefrom.
A processor is coupled to receive the bit stream for controllably processing the bit stream.
A memory is coupled to the processor for storing the processed bit stream information.
A controller is coupled to control the memory and the processor for controlling identification of information within the bit stream, wherein the controller controls the processor to identify a specific sector type in the bit stream and responsive to the specific sector identification the controller controls the memory for storing the identified specific sector.
In an inventive method a start code is acquired from a plurality of start codes in a data stream arranged in a plurality of sectors transduced during reproduction by a digital disk apparatus.
The method comprises the steps of searching the data stream to locate a specific sector type in the plurality of sectors.
The specific sector type is searched to locate a start code from the plurality of start codes.
The start code is tested to determine if it is incomplete.
Searching the data stream to locate a second sector of the specific sector type in the plurality of sectors.
Searching the second sector of the specific sector type to locate a second start code of the start code type from the plurality of start codes.
Determining if the second start code is the residue of the incomplete start code.
Combining the incomplete start code value and the residue start code value to form a complete start code.
A further inventive apparatus for reproducing a digitally encoded signal from a medium, comprises a transducer for transducing the digitally encoded signal and generating a bit stream therefrom.
A first memory is coupled to the transducer for storing the bit stream.
A second memory for storing data is controllably coupled from the first memory



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