The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2019
Filed:
Sep. 25, 2015
The Nielsen Company (Us), Llc, New York, NY (US);
Daniel Nelson, Tampa, FL (US);
Donald Miner, Severna Park, MD (US);
The Nielsen Company (US), LLC, New York, NY (US);
Abstract
Methods and apparatus are disclosed to identify media using hash keys. An example disclosed method includes generating a hash key based on first samples of media. In the disclosed example method, the first samples corresponds to a portion of the media sampled in a buffer of a computing device. The example method also includes applying a blurring function to the hash key to generate a blurred hash key. The example method also includes generating first confirmation data based on second samples of the media. The example method also includes storing the blurred hash key in association with the first confirmation data and first reference data in a memory separate from the buffer of the sampled media. In the example methods, the reference data identifies the portion of the media.