Patents Assigned to Source Digital, Inc.
  • Patent number: 9786298
    Abstract: Audio fingerprinting includes obtaining audio samples of a piece of audio, generating frequency representations of the audio samples, identifying increasing and decreasing energy regions in frequency bands of the frequency representations, and generating hashes of features of the piece of audio. Each hash of features corresponds to portions of the identified energy regions appearing in a respective time window. Each feature is defined as a numeric value that encodes information representing: a frequency band of an energy region appearing in the respective time window, whether the energy region appearing in the respective time window is an increasing energy region or whether the energy region appearing in the respective time window is a decreasing energy region, and a placement of the energy region appearing in the respective time window.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 10, 2017
    Assignee: Source Digital, Inc.
    Inventor: Patrick Greene