4. Television
  5. Synchronization
  6. Locking of video or audio to reference timebase

Gracenote, Inc.

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Apparatus and method for determining a prominent tempo of an...

Music – Instruments – Electrical musical tone generation
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Automatic identification of DVD title using internet...

Data processing: database and file management or data structures – Database and file access – Record – file – and data search and comparisons
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Finding database match for file based on file characteristics

Data processing: speech signal processing – linguistics – language – Audio signal bandwidth compression or expansion
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Generating and matching hashes of multimedia content

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
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Generating and matching hashes of multimedia content

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
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