On Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents concern aspects of digital fingerprinting and digital watermarking. Assigned to Oracle, the first of today's patents addresses techniques for media fingerprint indexing. Assigned to Canon (JP), the second patent addresses techniques for detering information leakage by a flexible monitoring method according to the characteristic of an image or document.
8,275,177, "System and method for media fingerprint indexing," assigned to Oracle.
A fingerprint and indexing service is implemented to receive a media object and generate a fingerprint corresponding to the media object. The fingerprint and indexing service may segment the fingerprint into frames and generate a confidence value for each bit within each frame. The confidence values may be added together and totaled, such that each frame has a corresponding confidence score. The frames may be ranked, according to their confidence scores. N of the top ranked frames may be selected as the index. Subsequently, a search component may determine the index values for a query media object. The database of media objects may be searched for matching index values for fingerprints with fingerprint lengths matching the query media object's length. Once a match is declared, the fingerprints of the query media object and the matching media objects within the database may be compared to determine if a match exists.
8,274,679, "Information processing apparatus and method of controlling the same," assigned to Canon (JP).
This invention deters information leakage by a flexible monitoring method according to the characteristic of an image or document. A job analysis section analyzes a print job and separates image data and attribute information. An image generator generates print image data from the image data by referring to the attribute information. A digital watermark generator and synthesis section embed at least part of the attribute information in the print image data. An image transmitter transmits, to a monitoring server, the print image data with at least part of the attribute information added. A monitoring method selector selectively operates the image transmitter or the digital watermark generator and synthesis section based on the attribute information.