| Patent application number | Description | Published |
|---|
| 20080205254 | Content Protection on a Record Carrier - The invention relates to a record carrier having a data zone ( | 08-28-2008 |
| 20080256604 | System for Managing Proprietary Data - A content distribution system ( | 10-16-2008 |
| 20080282319 | System for Managing Access Control - A content distribution system ( | 11-13-2008 |
| 20080285429 | Side-Channel for Record Carriers with Spiral Tracks - In order to create a record carrier having a side-channel which cannot be copied with a channel-bit recorder, the record carrier ( | 11-20-2008 |
| 20080291801 | Record Carrier with Copy Protection Means - In summary, ROM marks (such as wobbles, lateral deviations in the spiral with lands and pits in an optical disc) are used on optical media to ensure consumer-grade copying devices cannot duplicate original media. An additional level of security is that the detection of the side channel information requires knowledge of a certain secret, which must be hidden well in authorized players. If the secret leaks, a professional pirate will be able to detect the ROM mark and duplicate the original medium with the side channel information intact. The present invention proposes that instead of a single ROM mark, many ROM marks are applied to a disc. Further, devices are divided into groups, and each group has the capability to only detect one mark from the group. This way, if a secret is obtained from a device, the disc can be duplicated, but only a limited number of devices will be able to use this disc. Creating a disc that can be played in any device requires the hacking of one device from every group. | 11-27-2008 |
| 20090276635 | CONTROLLING DISTRIBUTION AND USE OF DIGITAL WORKS - In order to efficiently prevent the save-and-restore attack on usage rights associated with digital work, these usage rights are protected by a hidden channel. In order to make it a difficult or expensive to manipulate the hidden channel, a device is proposed comprising: writing means ( | 11-05-2009 |
| 20100146261 | CONTROLLED ACTIVATION OF FUNCTION - A method of and system ( | 06-10-2010 |
| 20100161972 | DEVICE AND METHOD FOR KEY BLOCK BASED AUTHENTICATION - The invention relates to a device ( | 06-24-2010 |
| 20100271914 | DRIVE APPARATUS - The present invention relates to a drive apparatus ( | 10-28-2010 |
| 20110080120 | WIRELESS, REMOTELY CONTROLLED, DEVICE SELECTION SYSTEM AND METHOD - The invention relates to a wireless remote controlled device selection system for selecting devices. Signal processing provides information for a remote control device. This information is indicative of the angle between the remote control device and the various devices from which a device should be selected. By comparing the angular deviations, the desired device can be selected. | 04-07-2011 |
