On Thursdays the USPTO publishes new pending patent applications. Both of today's Spotlight Applications concern aspects of digital fingerprinting. Assigned to Affine Systems, the first application discloses techniques for matching an advertisement to a video. Assigned to the Secretary of the Navy, the second application discloses for radio-frequency fingerprinting as a security layer in RFID devices.
20110251896, "Systems and methods for matching an advertisement to a video," assigned to Affine Systems, Inc.
Systems and methods for automatically matching in real-time an advertisement with a video desired to be viewed by a user are provided. A database is created that stores one or more attributes (e.g., visual metadata relating to objects, faces, scene classifications, pornography detection, scene segmentation, production quality, fingerprinting) associated with a plurality of videos. Supervised machine learning can be used to create signatures that uniquely identify particular attributes of interest, which can then be used to generate the attributes associated with the plurality of videos. When a user requests to view an on-line video having associated with it an advertisement, an advertisement can be selected for display with the video based on matching an advertiser's requirements or campaign parameters with the stored attributes associated with the requested video, with the user's information, or a combination thereof. The displayed advertisement can function as a hyperlink that allows a user to select to receive additional information about the advertisement. The performance or effectiveness of the selected advertisements can be measured and recorded.
20110248827, "System and Method for Radio-Frequency Fingerprinting as a Security Layer in RFID Devices," assigned to the United States Government in the name of the Secretary of the Navy.
A system and method for authenticating a radio-frequency identification tags based on the features of the modulation features of the RFID signal. Dynamic wavelet fingerprint features are extracted from the signal by applying a wavelet transform to the signal to determine wavelet coefficients at a plurality of times and frequency scale values, creating a binary image from the wavelet coefficients, and measuring image features of at least one fingerprint object in the binary image. The measured features of the binary image fingerprint objects are compared to a database of features for the signal's EPC to authenticate the RFID tag.