| Patent application number | Description | Published |
|---|
| 20080205237 | RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, RECORDING APPARATUS AND REPRODUCTION APPARATUS - A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded. | 08-28-2008 |
| 20080212438 | RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, RECORDING APPARATUS AND REPRODUCTION APPARATUS - A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded. | 09-04-2008 |
| 20080247299 | RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, RECORDING APPARATUS AND REPRODUCTION APPARATUS - A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded. | 10-09-2008 |
| 20080247302 | RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, RECORDING APPARATUS AND REPRODUCTION APPARATUS - A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded. | 10-09-2008 |
| 20090034383 | DISK-SHAPED RECORD MEDIUM AND PRODUCING METHOD FOR SAME, DISK RECORDING METHOD AND DEVICE, AND DISK PLAYBACK METHOD AND DEVICE - To record specific information to a disk-shaped record medium and reproduce the recorded specific information without any influence on the error correction capability. Copy protection information (CPID) having an error correction code appended thereto, shuffled and otherwise treated is sent as a CPID bit block to an EDC rewrite circuit ( | 02-05-2009 |
| 20090196140 | OPTICAL DISC, OPTICAL DISC MANUFACTURING METHOD, OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC REPRODUCTION DEVICE - Sub-information necessary to reproduce main information is recorded without deteriorating the reading accuracy of the main information, so that the illegal duplication of an optical disc is prevented. An optical disc | 08-06-2009 |
| 20090268590 | OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove. | 10-29-2009 |
| 20090268598 | OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove. | 10-29-2009 |
| 20090274026 | OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION REPRODUCING APPARATUS - An optical storage medium can be provided by which illegal usage of the optical storage medium involving an infringement on the copyright can be prevented effectively without impairment of the functions for reproducing physical format information and optical storage medium manufacturing information. The optical storage medium includes a main information region in which encrypted data information is recorded as a pit row that is capable of being read out by means of light and a control data region. In the control data region, key information for decoding the encryption of the data information, the physical format information and the optical storage medium manufacturing information are recorded by wobbling a groove. | 11-05-2009 |
| 20100131821 | DATA RECORDING METHOD, RECORDING MEDIUM AND REPRODUCTION APPARATUS - A recording medium for storing a data stream is comprised of first error correcting codes obtained by encoding first information, second error correcting codes obtained by encoding second information, and synchronization signals. In the data stream, the second error correcting codes and the synchronization signals alternatively interleave the first error correcting codes. The second error correcting codes have the same number of corrections as the first error correcting codes. A code length of the second error correcting codes is shorter than a code length of the first error correcting codes. | 05-27-2010 |
| 20100188721 | TWO-DIMENSIONAL ENCODER, HOLOGRAPHIC MEMORY DEVICE AND HOLOGRAPHIC MEMORY MEDIUM - A two-dimensional encoder stores data on a holographic memory. The encoder encodes data of k bits (where k is an integer and k≧3) into n pixels arranged two-dimensionally (where n is an integer and n≧6). The encoder includes a first processing section | 07-29-2010 |
| 20100220563 | RECORDING CONTROL DEVICE, LASER DRIVE DEVICE, INFORMATION RECORDING DEVICE, SIGNAL TRANSMISSION METHOD, AND RECORDING/REPRODUCTION CONTROL DEVICE - An information recording device that offers high performance with an inexpensive structure is achieved without requiring a dedicated line for transmitting and receiving control data. The information recording device ( | 09-02-2010 |
| 20100229069 | DRIVE DEVICE, CONTENT REPRODUCTION DEVICE, RECORDING DEVICE, DATA READOUT METHOD, PROGRAM, RECORDING MEDIUM, AND INTEGRATED CIRCUIT - A drive device is provided to promote copyright protection by preventing playback of copied contents, even if unique identification information on a recording medium, used to generate title keys for decrypting encrypted contents, is revealed, and the contents are independently encrypted and copied using this identification information. Identification information unique to a recording medium | 09-09-2010 |
| 20100254240 | RECORDING MEDIUM, RECORDING METHOD, REPRODUCTION METHOD, RECORDING APPARATUS AND REPRODUCTION APPARATUS - A recording medium comprising a recording area, the recording area includes a first area and a second area, the first area includes a frame area, the frame area includes an area in which a second synchronization code sequence and at least a portion of data are to be recorded, and the second area includes an area in which a third synchronization code sequence and a fourth synchronization code sequence are to be recorded. | 10-07-2010 |
| 20100284253 | OPTICAL DISC, PLAYBACK APPARATUS FOR OPTICAL DISC, AND APPARATUS AND METHOD FOR MANUFACTURING OPTICAL DISC - On an optical disc, main information to be decrypted using sub information is recorded by arranging concave or convex recording marks in a spiral track and a reflective film is formed on the recording marks. First sub information is recorded as being superimposed on the main information by shifting or deforming the recording marks or altering a pattern of the recording marks. Second sub information is recorded as being superimposed on the main information by changing a reflectivity of the reflective film formed on the recording marks. The first sub information and the second sub information are recorded in an area from which the first sub information and the second sub information are to be read simultaneously. The second sub information is recorded in a manner that the second sub information is associated with the first sub information. The first sub information and the second sub information are associated with each other, and improve resistance to unauthorized copying by prohibiting content information from being read unless both the first sub information and the second sub information are read. The first sub information and the second sub information are recorded in the same area, and prevent the time taken for reading sub information from increasing. | 11-11-2010 |
| 20110004891 | INFORMATION RECORDING DEVICE, INFORMATION REPRODUCING DEVICE, AND INFORMATION RECORDING MEDIUM - The invention provides an information recording device, an information reproducing device, and an information recording medium capable of securely protecting copyright of main information, and preventing illegal access to the recorded main information. The information recording device ( | 01-06-2011 |
| 20110007616 | OPTICAL DISC RECORDING APPARATUS, OPTICAL DISC RECORDING CIRCUIT AND OPTICAL DISC - An optical disc recording apparatus ( | 01-13-2011 |
