| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 369300180 | Electrical information signal processing | 33 |
| 20080205206 | METHOD FOR DETECTING A UTILIZATION STATUS OF AN OPTICAL DISC AND APPARATUS THEREOF - A method for detecting a utilization status of an optical disc is disclosed. The method includes: accessing the optical disc to generate a radio frequency signal; generating an estimated blank signal according to the radio frequency signal; generating a first reference signal to indicate a DC level of the radio frequency signal according to the radio frequency signal; and detecting a true overwrite area of the optical disc according to said blank signal and the first reference signal. | 08-28-2008 |
| 20090180361 | OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT - In an optical disc, a track on which data is recordable is divided into a plurality of blocks, and each block includes L pieces of sub blocks. On each sub block, M-bit first digital information specifying a block address of a block including the each sub block and N-bit second digital information capable of representing a numerical value equal to or larger than L are recorded. | 07-16-2009 |
| 20090296539 | Information Recording Apparatus and Method, Computer Program - An information recording apparatus ( | 12-03-2009 |
| 20110002201 | OPTICAL DISC, OPTICAL DISC DRIVE, OPTICAL DISC RECORDING/REPRODUCING METHOD, AND INTEGRATED CIRCUIT - An address format for appropriately controlling the recording linear density and the number of information recording layers is provided in order to increase the recording capacity of an information recording medium such as an optical disc or the like in a range in which a necessary S/N ratio can be guaranteed. An optical disc includes an information recording layer having a concentric or spiral track, and has a format for describing a track address, which is pre-recorded on the track or is to be added to data that is to be recorded on the information recording layer. The format includes layer information regarding the information recording layer and address information regarding the track address. | 01-06-2011 |
| 20110158062 | INFORMATION PROCESSING SYSTEM - In an information storage device in which small compartments each for storing information are arranged three-dimensionally inside a solid body, the solid body having at least one pair of parallel planar portions on its surface is used for a memory medium. The information to be stored is divided into bits and stored in discrete minute areas that distribute three-dimensionally inside the memory medium. Anisotropy is given to the pitch of the memory cell and the pitch in a direction right-angled to the planar portion is made larger than the pitch in the parallel direction. Moreover, the data such that given n-bits are used as a unit is converted into a digital format such that m-bits larger than n are used as a unit and the number of included ‘1s’ is smaller than n, which is recorded in the memory medium. When recording the data on the medium, pieces of the data expressed by the m-bits are arranged on the plate in the right-angle direction. | 06-30-2011 |
| 20130194902 | INFORMATION PROCESSING SYSTEM - An information storage device has small compartments for storing information in a solid body and can be used as a memory medium. The solid body can have at least one pair of parallel planar portions on its surface. The information is divided into bits and stored in discrete minute areas that are distributed three-dimensionally inside the memory medium. The data can be converted into a digital format for storage to regulate the number of ‘1s’ recorded in a direction of the memory medium. | 08-01-2013 |
| 20140341006 | INFORMATION REPRODUCING APPPARATUS AND INFORMATION REPRODUCING METHOD - An information reproducing apparatus includes a photodetector ( | 11-20-2014 |
| 369300190 | Copying or editing | 3 |
| 20080232200 | Method of Generating a Digital Photo Slide Show from an Optical Disc - Before generating a digital photo slide show, both original digital photos and related media playing packages are burnt into a same optical disc. While the optical disc is loaded by a disc playing device, a media playing module installed on the optical disc playing device loads both the original digital photos and the related media packages on the optical disc, and generates a required digital photo slide show according to digital photos and media playing packages, both of which are chosen by a user, for preventing the problem of causing damage of resolution of the digital photos by repeatedly encoding said digital photos, and for management and reuse of said digital photos on the optical disc hereafter. | 09-25-2008 |
| 20110063955 | Standalone Duplication System with Network Connection - A standalone duplication system with network connection has a casing, multiple recording devices, a control module, a bridge unit, a storage device and a network module, wherein the bridge unit connects between the control module, the storage device and the network module. When the bridge unit confirms that the control module has disconnected from the storage device and the network module receives a data transfer command, the storage device can receive data via the network module and store data for duplication. Therefore, the standalone duplication system is capable of receiving data from different computers over a network without using a high-end central processing unit (CPU). The standalone duplication system need not be moved to different places and connected to and disconnected from different personal computers again and again. Users operate their own personal computers to send required data to the standalone duplication system via the network. | 03-17-2011 |
| 20110128831 | METHOD OF USING BACKUP IMAGE OF OPTICAL DISC - This document relates to a method of using a backup image of an optical disc. In an embodiment of this document, data of an optical disc inserted into an Optical Disc Drive (ODD), included in a disc drive integrated with a Solid State Drive (SSD), may be backed up in the SSD in the form of an image file, and access to the optical disc may be bypassed to the backup image file. Backing up the data and bypassing the access may be executed by an application program in the operating system of a host coupled to the disc drive. The application program may be automatically executed when the optical disc is inserted into the ODD or by manipulation of a predetermined button provided in the disc drive. Furthermore, the application program may set the backup image file of the SSD to a virtual drive for the optical disc. | 06-02-2011 |
| 369300200 | Plural storage medium elements | 1 |
| 20140211599 | METHOD FOR PROCESSING INFORMATION, INFORMATION PROCESSING APPARATUS, AND STORAGE MEDIUM - According to one embodiment, a method for information processing executed in an information processing apparatus processing recording data, including, dividing the recording data into a plurality of recording data blocks, recording management information on corresponding first management areas in n storage media, the n storage media comprising a first storage medium to an nth storage medium, wherein n comprises an integer equal to or larger than 2, and recording the recording data blocks on corresponding second management areas of the n storage media by a controller configured to control the information processing apparatus. | 07-31-2014 |
| 369300210 | Monitoring signal error or verification | 5 |
| 20090003144 | Method and system for error checking in a bit-patterned media - A disc drive system provides increased reliability by detecting and correcting errors associated with bit-patterned media. Write synchronization errors associated with bit-patterned media are addressed by including data storage for temporarily storing data that is being written to the disc drive. The data is read from both the disc drive and the storage medium and compared to detect write synchronization errors. A disc drive system for correcting write synchronization errors includes an encoder, non-volatile storage, and decoder device for implementing a parity-based scheme for increased reliability. Data strings being written to the disc drive are combined in an encoder to generate a parity string. The address of the data being written to the disc drive, along with the updated parity string is stored to the non-volatile storage. The data strings are read from the disc drive by the decoder. If uncorrectable errors are identified, the decoder employs the parity string in conjunction with the other data strings written to the disc drive to reconstruct the data string with uncorrectable errors. | 01-01-2009 |
| 20090059739 | METHOD OF WRITTING DATA TO A DISC, DISC DRIVE - The invention relates to a method of writing data to a disc (OD). The method comprised: a) performing a plurality of writing actions in which a plurality of data portions are written to the disc, b) performing a plurality of verification actions in which written data portions are at least partly verified and at least part of the data portions are replaced if needed. The method further comprises a2) performing a decision action for each writing action in which a decision whether or not to perform the verification action for a specific written data portion is taken. | 03-05-2009 |
| 20090238046 | INFORMATION RECORDING DEVICE AND METHOD, AND COMPUTER PROGRAM - An information recording apparatus ( | 09-24-2009 |
| 20120092974 | INFORMATION REPRODUCTION METHOD, INFORMATION RECORDING METHOD, AND INFORMATION RECORDING MEDIUM - According to the present invention, a first error pattern caused by a shift of a bit relating to a recording mark or a space of a shortest length and a second error pattern caused by an edge shift of the recording mark are used. For each of a plurality of error patterns, a pattern shift obtained by normalizing a difference between a square of a Euclidean distance between the error pattern and a reproduction signal and a square of a Euclidean distance between a correct pattern and the reproduction signal, using a square of a Euclidean distance between the correct pattern and the error pattern is detected. Length and phase errors are calculated by a sum of, or a difference between, a first pattern shift amount obtained by normalization performed using the first error pattern and a second pattern shift amount obtained by normalization performed using the second error pattern. | 04-19-2012 |
| 369300220 | Correction of error | 1 |
| 20090196130 | INFORMATION RECORDING/REPRODUCING APPARATUS - The present invention is directed to improve precision of tracking correction and focus correction while assuring stability of the tracking correction and focus correction during recording/reproducing of data to/from an optical disk. | 08-06-2009 |
| 369300230 | Buffering | 11 |
| 20080198706 | BUFFER MANAGEMENT METHOD AND OPTICAL DISC DRIVE - An optical disc drive is provided, mainly comprising a buffer, a processor and a driving module for accessing an optical disc. The optical disc drive receives a plurality of write commands. Each write command comprises a data block and a destination address. The buffer buffers data blocks to be recorded to the optical disc with corresponding write commands in either a random mode or a sequential mode. The processor schedules a recording operation based on the write commands, and selectively switches the buffer to the random mode or to the sequential mode based on arrangements of data blocks buffered in the buffer. The driving module is controlled by the processor to perform the recording operation, whereby the data blocks are recorded to the optical disc when a start recording condition is met. Specifically, the start recording condition varies with the random or sequential modes. | 08-21-2008 |
| 20090175137 | REPRODUCING METHOD FOR REPRODUCING REAL TIME DATA FROM A DISK-SHAPED INFORMATION RECORDING MEDIUM - A standard reproduction model for ensuring real time reproducing on a disk-shaped information recording medium, includes a pickup ( | 07-09-2009 |
| 20090190448 | DATA MANAGING METHOD FOR AN OPTICAL DISC DRIVE WRITING USER DATA INTO AN OPTICAL DISC HAVING DEFECTS - A data managing method for an optical disc drive writing data into an optical disc having defects is provided. The optical disc has a user data area and a spare area. The optical disc drive includes a first buffering space and a second buffering space. The data managing method includes: when the first buffering space receives a data corresponding to a defect, not suspending the first buffering space from receiving the user data, and transferring the data, corresponding to the defect and in the first buffering space, to the second buffering space; and when data amount in the second buffering space reaches a predetermined value, suspending the optical disc drive from writing data in the first buffering space into the user data area, and driving the optical disc drive to write data in the second buffering space into the spare area. | 07-30-2009 |
| 20090296540 | MEDICAL DISC PUBLISHER - A method and apparatus for storing on a portable computer-readable medium, a study comprising at least one medical output produced by a medical modality and formatted in a standard medical format used by specialized computers configured for viewing outputs produced by medical modalities, and optionally labeling the portable computer-readable medium. The method includes receiving a transmission comprising the medical output that is formatted according to the standard medical format, at least temporarily storing the medical output as it is received in a buffer memory to be subsequently stored onto the portable computer-readable medium, and storing the medical output from the buffer memory onto the portable computer-readable medium. | 12-03-2009 |
| 20100061201 | BUFFER MANAGEMENT METHOD AND APPARATUS THEREOF - A control unit accesses a memory. The memory includes a plurality of blocks. The control unit includes a batch buffer, a batch controller and a multiplexer. The batch buffer stores a batch which includes a designated block index. The batch controller fetches the designated block index from the batch buffer. The multiplexer selectively outputs a sequential block index or the designated block index as an active index according to a control signal. And a designated block of the memory is accessed according to the active index. | 03-11-2010 |
| 20100302919 | Optical Recording Method and Apparatus - An optical recording method and recording system for recording data to optical recordable medium are present. An recording system for recording a plurality of data units from a source via a buffer to an optical recordable medium, the apparatus comprising: a pick-up head module (PUH module), a verifier coupled to the PUH module, a buffer management unit for controlling the buffer to buffer data units, and receiving a verifying status signal from the verifier, when the verifying status signal indicating one of recorded data units is verified, generating a transfer control signal for receiving new data unit, and a buffer control signal to control the buffer to release buffer space of the verified data unit to buffer new data unit; wherein after the verifier verifies the second number of the data units, the PUH module follows to an initial position to record a third number of new data units and keeps recording and reading until the plurality of data units being recorded and verified. | 12-02-2010 |
| 20100309757 | Disc Access Apparatus and Disc Access Method - The directory information on a file system recorded on an optical disc is cached onto a hard disk as a directory table. When accessing a file on the optical disc, a processor references the directory table so as to obtain information related to a position, on the disc medium, where the file to be accessed is located, without accessing the directory information on the optical disc. A disc I/O controller moves a pickup unit to the location indicated by the positional information on the file to be accessed and reads the data on the file. The pickup unit is used to detect signals from the optical disc. | 12-09-2010 |
| 20100322045 | OPTICAL STORAGE MEDIUM PLAYBACK APPARATUSES AND RELATED METHOD THEREOF - An optical storage medium playback apparatus includes an optical storage access device, a connection port, and a controller. The optical storage access device is implemented for reading a multimedia content from an optical storage medium. The controller is coupled to the optical storage access device and the connection port, and is implemented for storing a portion of the multimedia content read from the optical storage medium into an external storage via the connection port when the external storage is electrically connected to the connection port, and for accessing the portion of the multimedia content which is stored in the external storage electrically connected to the connection port and performing a playback operation upon data read from the optical storage medium concurrently. | 12-23-2010 |
| 20110096644 | OPTICAL DISK AND OPTICAL RECORDING/REPRODUCING DEVICE - A small-sized, large-capacity optical disk is provided which is superior in portability. The optical disk has a diameter less than 64 mm and a thickness less than 0.8 mm. Tracks are formed with a pitch less than 0.6 μm, and the record area is divided into a plurality of zones alone the radium. The optical disk can store more than 650 MB of compressed data. | 04-28-2011 |
| 20110103202 | OPTICAL DISK UNIT AND REPRODUCTION METHOD THEREFOR - It is desirable to provide a reproduction method having a high operating efficiency in an optical disk unit containing a mass storage memory such as a semiconductor memory. Data to be recorded is recorded on both an optical disk and the mass storage memory. Verify flags respectively corresponding to recording sectors or ECC blocks of an optical disk medium are stored in a control memory. In response to an instruction to reproduce the data, the data recorded on an optical disk is reproduced and verified when the data is not yet verified in reference to the verify flag. When the data has been verified, the data recorded on the mass storage memory is read and outputted to reduce response time, current consumption, and noise significantly. The mass storage memory is mounted in the optical disk unit to contribute to downsizing of a recording and reproduction device. | 05-05-2011 |
| 20120014234 | DATA RECORDING METHOD AND APPARATUS FOR RE-VERIFYING CORRECTNESS OF RECORDED DATA ON OPTICAL STORAGE MEDIUM - An exemplary data recording method of an optical storage medium includes following steps: during a current recording operation for recording first data onto the optical storage medium, detecting if a fatal recording error occurs; and when the fatal recording error is detected, activating a current verifying operation to verify correctness of a recorded data section on the optical storage medium. The recorded data section is recorded onto the optical storage medium according to second data during a previous recording operation, and data recording of the second data has been verified during a previous verifying operation prior to the current recording operation. | 01-19-2012 |
| 369300250 | Auxiliary information | 6 |
| 20090086588 | Timing extractor, and information playback apparatus and dvd device using the timing extractor - In a feedforward timing extractor for extracting timing information from a playback signal, a frequency ratio calculation section | 04-02-2009 |
| 20110122741 | OPTICAL RECORDING MEDIUM HAVING AUXILIARY INFORMATION AND REFERENCE CLOCK - An information recording medium is at least composed of a substrate having a microscopic pattern constituted by a continuous substrate of grooves formed with a groove portion and a land portion alternately, a recording layer formed on the microscopic pattern for recording information, and a light transmitting layer formed on the recording layer. The microscopic pattern is formed with satisfying a relation of P≦λ/NA, wherein P is a pitch of the land portion or the groove portion, λ is a wavelength of reproducing light for reproducing the recording layer, and NA is a numerical aperture of an objective lens. The land portion is formed with wobbling so as to be parallel with each other for both sidewalls of the land portion. An auxiliary information based on data used supplementally when recording the information and a reference clock based on a clock used for controlling a recording speed when recording the information is recorded alternately. Information is recorded in the recording layer corresponding to only a land portion by at least either one change of reflectivity difference and refractive index difference in the recording layer so as to be more than 5% for reflectivity and so as to be more than 0.4 for modulated amplitude of signal recording. | 05-26-2011 |
| 20110134728 | DISC-SHAPED RECORDING MEDIUM, CUTTING APPARATUS FOR SAME, AND DISC DRIVE - There is provided an optical disc having preformed thereon a spiral wobbled track as a grove and/or land along with data is to be recorded. The track is wobbled for a series of predetermined signal units each composed of an FSK information bit part based on a waveform resulted from FSK modulation of information bit and a singe-frequency part based on a waveform of a single frequency. The FSK modulation uses two different frequencies of which the one is the same as the single frequency and the other is different from the single frequency. These different frequencies are in such a relation that each of them has an even number of wobbles and an odd number of wobbles alternately in a predetermined cycle. | 06-09-2011 |
| 20120026848 | INFORMATION STORAGE MEDIUM, RECORDING AND REPRODUCING APPARATUS, AND RECORDING AND REPRODUCING METHOD - An information storage medium is provided. The information storage medium includes a user data area on which user data is recorded, and a temporary disc management area on which a space bitmap representing a recording status of at least one recording/reproducing unit block of the user data area is recorded. The temporary disc management area including information about an additional space bitmap which is assigned to provide additional space to represent the recording status of the at least one recording/reproducing unit block of the user data area. | 02-02-2012 |
| 20130142022 | Data Recording Medium and Method for Generating a Reference Clock Signal - Various embodiments provide a recording medium. The recording medium may include a dedicated servo layer for providing servo information. The dedicated servo layer may include a plurality of tracks. A first track may include a first servo signal. A second track may include a second servo signal. The first servo signal and the second servo signal may include a plurality of common transitions. The transitions may be provided at a pre-determined frequency. | 06-06-2013 |
| 20130155826 | Data Recording Medium, Method for Generating a Reference Clock Signal, and Data Storage Device - Various embodiments provide a recording medium. The recording medium may include: a dedicated servo layer for providing servo information, wherein the dedicated servo layer comprises a plurality of tracks, wherein a first track comprises a first servo signal of a first frequency, wherein a second track comprises a second servo signal of a second frequency, and wherein the first servo signal and the second servo signal comprise a common single tone signal. | 06-20-2013 |
