Thursdays the USPTO publishes new patent applications. Today's Spotlight applications address various aspects of watermarking and fingerprinting. Assigned to Nippon Telephone and Telegraph, the first application discloses a digital watermark padding method, digital watermark padding device, digital watermark detecting method, digital watermark detecting device, and program. The second application discloses techniques for interactive TV data track synchronization in part using fingerprinting, no assignee given.
20080089552,"Digital Watermark Padding Method, Digital Watermark Padding Device, Digital Watermark Detecting Method, Digital Watermark Detecting Device, And Program," assigned to Nippon Telegraph and Telephone (JP).
A digital watermark embedding method of the present invention includes: a step of sequentially obtaining each frame image of the moving image data and frame display time; a step of generating a watermark pattern using watermark information, the frame display time and watermark pattern switching information; a step of superimposing the watermark pattern onto the frame image, and combining watermark embedded frame images obtained by sequentially repeating the processes to generate watermark embedded moving image data. A digital watermark detection method includes a step of sequentially obtaining a frame image; a step of generating a difference image between the currently obtained frame image and a previously obtained frame image; and a step of performing digital watermark detection from the difference image to output digital watermark detection status, and when digital watermark detection process is continued, obtaining a new frame again to repeat the above processes.
20080089551, "Interactive TV data track synchronization system and method," no assignee given.
The present invention provides a system and method to allow product placement, i.e. showcasing products broadcast over TV, cable or similar media and to enable viewers to view, bookmark and purchase products placed within the program as they appear on the TV screen at a particular time. The present invention further provides a method and system for creating and identifying a digital fingerprint, which consists of a record of one or more frames in a program and associating information about products that appear in these frames to the digital fingerprint. The fingerprints are stored in a database of digital fingerprints, accessible via a wireless network and the Internet from the viewer's mobile wireless device. The mobile device submits a request to identify and locate the fingerprints corresponding to the program frame(s) being viewed, and it receives and displays the associated product information in order to facilitate the purchase of the featured products.