| Patent application number | Description | Published |
|---|
| 20090060191 | INTERFACE CIRCUIT, INFORMATION PROCESSING DEVICE, AND INFORMATION PROCESSING SYSTEM - A scrambling circuit | 03-05-2009 |
| 20090147665 | OPTICAL DISC RECORDING DEVICE AND OPTICAL DISC RECORDING SYSTEM - When recording is carried out in a DVD-RAM, if at least one address mark could have been detected at the header section, after a test light emission for a laser power control is carried out at a GAP section, normal recording is carried out from GUARD | 06-11-2009 |
| 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 |
| 20100177608 | OPTICAL DISC AND METHOD FOR CONTROLLING THE SAME - In an optical disc having a multilayer structure in which recording layers are bonded to each other, the number of times additional writing can be performed is increased. A method for controlling an optical disc device according to the present invention comprises steps of calculating a displacement amount generated when the recording layers are bonded to each other; and identifying the size of a recordable area in a non-usable area predetermined on the recording layer based on the displacement amount. | 07-15-2010 |
| 20100329095 | METHOD FOR DETERMINING RECORDING CONDITION OR REPRODUCING CONDITION, INTEGRATED CIRCUIT, AND OPTICAL DISK DEVICE - A process which is performed by a recording/reproducing device configured to irradiate an optical recording medium including a plurality of recording layers with laser light to record and reproduce data, and is for determining at least one of a recording condition at the time of recording user data on any one recording object recording layer of the plurality of recording layers, or a reproducing condition at the time of reproducing the data from the recording object recording layer, where record management data indicating a recorded area on the recording layers is recorded on the optical recording medium. The process includes: acquiring a remaining capacity of a test recording area for each of the recording layers based on the record management data; and determining a recording layer on which test recording is intended to be made based on the remaining capacities of the test recording area acquired for the recording layers. | 12-30-2010 |
| 20110182156 | OPTICAL DISC RECORDING METHOD, OPTICAL DISC RECORDING DEVICE CONTROL METHOD, OPTICAL DISC RECORDING DEVICE, HOST DEVICE, OPTICAL DISC RECORDING CONTROL PROGRAM, AND OPTICAL DISC RECORDING DEVICE CONTROL PROGRAM - Optical disc recording processing of recording data to be recorded on an optical disc having a plurality of recording layers at a recording velocity depending on the radial position includes use pattern selection processing of selecting a use pattern in which given recordable regions included in a data zone of the optical disc are used for recording of the data to be recorded in given use order, among a plurality of use patterns different in the number of recording layers used, so that the total recording time is shortened, based on given conditions including at least the capacity of the data to be recorded, the recording velocities of use regions in the use pattern, and the number of interlayer shifts in the use pattern. The data to be recorded is recorded according to the use pattern selected in the use pattern selection processing. | 07-28-2011 |
| 20110242948 | OPTICAL DISC DEVICE AND OPTICAL DISC - There is provided an optical disc device including an objective lens, a lens actuator for driving the objective lens, a light-receiving unit, and a system control unit which determines, at startup, the values of parameters to be set for recording or reproducing data in or from the respective information layers, and performs setting and management of recording inhibition or reproduction inhibition for the respective information layers, wherein, even when an error occurs because the values of the parameter groups for the respective layers cannot be determined in an optical disc having laminated plural information layers, recording or reproduction can be performed for at least the layers for which the parameters can be correctly determined, without stopping the startup. Thereby, the states of the respective information layers are managed for each information layer, and reproduction or recording operation is rapidly started in the respective layers to effectively utilize the multilayer disc. | 10-06-2011 |
