Patent ID: 7269596
Filing Date: 2007-09-11
Classification: H04N,Y10S

Abstract:
1. An audio/video generation apparatus, comprising: an audio/video generation device configured to generate at least one of audio and video material, and a metadata generation processor configured to receive at least one of the generated audio and video material, and to generate metadata describing at least one of the content and attributes of the generated audio and video material, the metadata generation processor including a hashing processor configured to generate a quasi-unique reference from at least one of the audio and video material, the quasi-unique reference being a hash value, the hash value providing a quasi-unique reference to at least one of the audio and video material with a reduced amount of data than the audio/video material itself, the hash value being generated from data values representing the at least one of audio and video material in accordance with a predetermined relationship, and the metadata generation processor configured to include the hash value as part of the metadata, said hash value and metadata being stored on a computer readable storage medium, the metadata is represented as a data structure stored on the computer readable storage medium, said data structure describing the content of at least one shot or sub-shot of at least one of the audio and video material, the data structure comprising a volume identification defining the computer readable storage medium on which at least one of the audio and video material is represented, at least one shot identification defining the at least one shot or sub-shot within at least one of the audio and video material, and the quasi-unique reference value generated from at least one the audio and video data within the shot or sub-shot.