| Patent application number | Description | Published |
|---|
| 20080310673 | System reactions to the detection of embedded watermarks in a digital host content - Methods for adapting the operation of a system in response to the detection of embedded watermarks from a digital host content are provided. A digital host content is received and examined for the presence of watermarks. In response to the detection of embedded watermarks and in accordance with the value, type, density or spacing of the detected watermarks, one or more system reactions may take place. These reactions include conditionally allowing the system to resume its normal operation, prohibiting the system from resuming its normal operation, degrading the quality of the digital host content or changing the security status of the digital host content. In response to the extraction of weak watermarks that do not meet the desired system requirements, the extraction operation may be modified or extended to enable the detection of strong watermarks. | 12-18-2008 |
| 20100146286 | Pre-Processed Information Embedding System - Methods are provided for embedding auxiliary information in a host content signal which reduce the memory, bandwidth and computational complexity of the embedding and transmission systems. In one embodiment, a first reduced-scale signal is produced which corresponds to the host content embedded with a first logical value and producing a second reduced-scale signal corresponding to the host content embedded with a second logical value. A first set of segments from the first reduced-scale signal may be combined with a second set of segments from the second reduced-scale signal in a pre-defined manner to produce a composite embedded host content. Thus the storage and transmission requirements of the watermarking system are reduced to having to deal with only the original content plus two reduced-scale signals. | 06-10-2010 |
| 20100228857 | MEDIA MONITORING, MANAGEMENT AND INFORMATION SYSTEM - Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is provided in various ways to serve a variety of business needs. Methods for employing content identification technology to efficiently and automatically obtain reliable, accurate, and precise monitoring data are also disclosed. Various information products and services based on such monitoring systems are proposed. | 09-09-2010 |
| 20100287579 | MEDIA MONITORING, MANAGEMENT AND INFORMATION SYSTEM - Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is provided in various ways to serve a variety of business needs. Methods for employing content identification technology to efficiently and automatically obtain reliable, accurate, and precise monitoring data are also disclosed. Various information products and services based on such monitoring systems are proposed. | 11-11-2010 |
| 20110286625 | SYSTEM REACTIONS TO THE DETECTION OF EMBEDDED WATERMARKS IN A DIGITAL HOST CONTENT - Methods, devices and computer program products for enabling secure and efficient extraction of embedded watermarks from digital host content are provided. Upon the reception of a multi-channel digital host content with embedded watermarks, a subset of the received channels are selected and combined together to from a composite content. The composite content is then examined to recover embedded watermarks. The particular subset of channels can be selected according to a probability value. Further, a set of new channels can be selected and combined after a particular time interval has elapsed. The number of selected channels can also be varied each time a new selection is made. | 11-24-2011 |
| 20120017091 | METHODS AND APPARATUS FOR THWARTING WATERMARK DETECTION CIRCUMVENTION - Methods and apparatus for thwarting circumvention of watermark detection are provided. When content is received at a device that is equipped with a watermark extractor, an attacker may disguise the form of the received content in an attempt to circumvent detection of watermarks that are embedded in the content. A signal processing operation is performed on the received content such that the signal processing operation does not significantly degrade the perceptual quality of the content if the content is indeed in the form that is purported to be. The signal processing operation, however, significantly degrades the perceptual quality of the content if the content is in a different form, thereby discouraging the attacker's attempts to thwart watermark detection. | 01-19-2012 |
| 20120026393 | MEDIA MONITORING, MANAGEMENT AND INFORMATION SYSTEM - Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is provided in various ways to serve a variety of business needs. Methods for employing content identification technology to efficiently and automatically obtain reliable, accurate, and precise monitoring data are also disclosed. Various information products and services based on such monitoring systems are proposed. | 02-02-2012 |
