New pending patent applications are published on Thursdays. Both of today's Spotlight Applications concern aspects of digital watermarking and both are assigned to The Nielson Company. The first application discloses techniques for measuring exposure to streaming media. The second application discloses techniques to perform audio watermarking and watermark detection and extraction.
20180255351, "Methods and apparatus to measure exposure to streaming media," assigned to The Nielson Company.
Methods, apparatus, systems and articles of manufacture to measure exposure to streaming media are disclosed. An example apparatus includes a video retriever to retrieve an image displayed by a media device presenting the streaming media, the media device separate from the video retriever. A metadata extractor is to extract a video watermark from the retrieved image. A metadata converter is to, in response to the extraction of the video watermark, convert the video watermark into text formatted metadata. A transmitter is to transmit the text formatted metadata to a central facility.
20180254048, "Methods and apparatus to perform audio watermarking and watermark detection and extraction," assigned to The Nielson Company.
Methods and apparatus to perform audio watermarking and watermark detection and extraction are disclosed. Example apparatus disclosed herein to embed a code into an audio signal include means for selecting frequency components to be used to represent the code, different sets of frequency components to represent respectively different information, respective ones of the frequency components in the sets of frequency components located in respective code bands, there being multiple code bands and spacing between adjacent code bands being equal to or less than the spacing between adjacent frequency components in the code bands. Disclosed example apparatus further include means for synthesizing the frequency components to be used to represent the code and means for combining the synthesized frequency components with an audio block of the audio signal.