Patent application number | Description | Published |
20090113555 | DVD Replications System and Method - A system and method for replicating protected content on media includes a controller for enabling replicating of media content from partial encoded content received at a location of the controller. A media recorder is coupled to the controller and including a modulation process ( | 04-30-2009 |
20090122684 | Disc Authentication by Grayscale Image in Data Area Obtained by Modulation Rule Variation (Old Title) - The present principles provide a way to place a multilevel grayscale image, visible with the bare eye in the data area of an optical disc. This feature can be used to authenticate a legitimate disc, since the image features are lost when copying a disc either with a PC recording drive or by a pirate creating a data set to be used on a laser beam recorder to produce forged ROM discs. The modulation rules are selectively varied during disc writing in a way to change the distribution of pit/land lengths, so that the at three (3) different diffraction properties are generated, and therefore produce at least three (3) distinct looks to the bare eye. | 05-14-2009 |
20090245055 | DVD Replication of Encoded Content - An apparatus includes a controller for enabling replicating of media content from encoded content received, and a recorder responsive to the controller for recording content on media readable by a device other than said recorder. | 10-01-2009 |
20090274452 | Virtual DVD on Demand and Electronic DVD Rental/Buy/Burn - An apparatus includes a storage medium for storing downloaded encoded media content, and a decoder for decoding the stored encoded media content for a choice of one of a viewing rental of the decoded media content and recording the decoded media content to a recordable media. | 11-05-2009 |
20100002559 | Compatible optical recording medium - The optical recording medium has a recording layer sensitive for recording at a first wavelength and sensitive for reading at a second wavelength, the recording layer having a groove structure, wherein at the first wavelength the groove structure has a diffraction efficiency into a first diffraction order sufficiently large to generate a push-pull signal, and at the second wavelength it has a diffraction efficiency into a first diffraciton order close to zero. The optical pickup for recording on an optical recording medium intended to be read with a second wavelength and a second numerical aperture is characterized in that it has a light source for generating a light beam at a first wavelength and a numerical aperture given by the second numerical aperture multiplied with a ration of the first wavelength and the second wavelength. | 01-07-2010 |
20100188272 | Method and apparatus for embedding second code into optical disc data by data modulation rule variation - There are provided a method and apparatus for embedding a second level code into a first level code of an optical disc by data modulation rule variation. The apparatus includes a multi-level, varying rule based modulator ( | 07-29-2010 |
20110182162 | High-Speed Multi-Layer Optical Disc Recording - An apparatus includes a recorder having at least two optical pickup heads for simultaneously recording at least two bit streams on respective layers of recordable media in one of an opposite track path and a parallel track path. | 07-28-2011 |
20120094054 | HYBRID DISC, METHOD AND SYSTEM OF FORMING THE DISC - A hybrid data disc, method and system of forming the disc are disclosed. The hybrid disc includes a first substrate structure bonded to a second substrate structure, and at least two data layers of different formats for access from different sides of the disc. One example provides the second substrate structure with a second substrate that has at least one curable material layer on each side of the second substrate, and the curable material has a property that results in shrinkage associated with curing of the material. Other examples provide a data disc with different stacking ring configurations, a thinner substrate and substrate structures of opposite curvature. | 04-19-2012 |
20120141718 | DATA DISC, METHOD AND SYSTEM OF FORMING THE DISC - A data disc, method and apparatus for forming the disc are disclosed. The data disc includes a first substrate structure bonded to a second substrate structure, with two curable material layers disposed on different sides of at least one of the two substrate structures, and at least one groove formed on a surface of one of the two curable material layers. | 06-07-2012 |
20140146655 | OPTICAL DISC WITH PRE-RECORDED AND RECORDABLE REGIONS AND METHOD OF FORMING THE DISC - An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc. | 05-29-2014 |
20140146656 | Optical Disc With Pre-Recorded and Recordable Regions And Method Of Forming The Disc - An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc. | 05-29-2014 |
20140153374 | OPTICAL DISC WITH PRE-RECORDED AND RECORDABLE REGIONS AND METHOD OF FORMING THE DISC - An optical disc having a region with pre-recorded data and a recordable region, a method of fabricating the disc, a stamper for forming a disc master, and a recording device for use with the disc are disclosed. Data recorded in the recordable region may be used for activation of the disc, providing unique identification or enhancing program content on the disc. | 06-05-2014 |
20140347968 | METHOD AND SYSTEM FOR DISC AUTHENTICATION AND SECURITY - A method and apparatus for disc authentication are disclosed. The authentication method includes measuring at least one physical property of a data disc, which includes at least one of an angle and an eccentricity parameter associated with two data layers of a data disc, and authenticating the disc by determining whether a match exists between the measured property and encoded information on data layer the data disc relating to the physical property. | 11-27-2014 |