Thursdays the PTO publishes new pending patent applications. This week's Spotlight Appications focus on aspects of digital fingerprinting and digital watermarking. Assigned to Google, the first application discloses techniques for the detection of potentially copyrighted content in user-initiated live streams. Assigned to The Nielsen Company, the second application discloses techniques for performing variable block length watermarking of media.
20130263207, "Detection of potentially copyrighted content in user-initiated live streams," assigned to Google.
Systems and methods modifying a presentation of media content in response to a detected violation are provided. In particular, media content such as a media stream broadcasted by a user to other users can be monitored. The broadcasted media stream can be fingerprinted and compared to a fingerprint repository that includes entries associated with media content that is copyrighted or otherwise considered a violation. If the fingerprint matches entries included in the fingerprint repository, then the media stream can be modified such as modified to terminate.
20130268279, "Methods and apparatus for performing variable block length watermarking of media," apparently assigned to The Nielsen Company.
Methods and apparatus for performing variable block length watermarking of media are disclosed. An example method to encode auxiliary data in audio data comprises selecting a frequency based on a code, selecting a block size based on the code, a combination of the block size and the frequency to represent of the code, encoding the code in an audio stream according to the block size and the frequency, and transmitting the audio stream including the encoded code.