| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 369590110 |
Binary signal processing for controlling recording light characteristic
| 56 |
| 369590230 |
Having specific code or form generation or regeneration processing
| 25 |
| 369590210 |
Including sampling or A/D converting
| 20 |
| 369590190 |
Binary signal detecting using a clock signal
| 12 |
| 369590260 |
Binary signal processing of sectioned information
| 8 |
| 369590250 |
Format arrangement processing for auxiliary information
| 7 |
| 369590170 |
Binary signal level detecting using a reference signal
| 6 |
| 369590200 |
Binary signal phase processing | 4 |
| 20080298197 | CONTROLLING A HEAT RESISTIVE ELEMENT WITH A PULSE MODULATED SIGNAL - The disclosure is related to pulse width modulating a power signal to a heat resistive element of a transducer. The power signal may be a power output signal of preamplifier. The power signal may be provided to a heat resistive element in a transducer that is operable to read data from or write data to a data storage medium. The pulse width modulated power signal can allow for controlling the heating of the heat resistive element based on a thermal time constant of the heat resistive element and based on adjustable components of the pulse width modulated power signal. | 12-04-2008 |
| 20090274028 | Multi-bit phase alignment for synchronization mark pattern matching - Embodiments of the present invention relate to the detection of synchronization marks in data storage and retrieval. To detect a synchronization mark, embodiments of the present invention require both pattern matching and proper phase alignment, following a repeating synchronization field. According to one particular embodiment, proper phase alignment following a repeated four bit synchronization field, is utilized in conjunction with pattern matching, to identify a synchronization mark. By allowing a synchronization mark to be identified only with proper phase alignment at the earliest possible occurrence of the synchronization mark, accuracy of synchronization mark detection may be improved. | 11-05-2009 |
| 20110058462 | PHASE ERROR DETECTION APPARATUS, PHASE ERROR DETECTION METHOD, AND REPRODUCTION APPARATUS - A phase error detection apparatus includes: a sampling block; a first phase error calculation block; a second phase error calculation block; and a selective output block. | 03-10-2011 |
| 20120213049 | READ SIGNAL EVALUATION METHOD, INFORMATION RECORDING AND READING METHOD, AND INFORMATION RECORDING AND READING APPARATUS - A read signal evaluating means for ensuring compatibility in an optical phase multilevel recording and reading system is provided. In addition, a decoding means not large in circuit scale is provided. An optical phase is modulated based on user data, and phase information thus obtained is recorded in a recording medium. Then, the phase information recorded in the recording medium is optically read, and is converted into an electric signal. The signal is subjected to adaptive equalization and to partial response most-likely decoding. A shift in a time axis direction from a target wave of a predetermined pattern is detected from the read phase information and a statistical average is calculated. Meanwhile, a value of the phase read from the predetermined pattern is extracted from the read phase information and a statistical average is calculated. | 08-23-2012 |
| 369590150 |
Binary signal gain processing | 3 |
| 20100080102 | INFORMATION REPRODUCING APPARATUS AND METHOD, AND COMPUTER PROGRAM - An information reproducing apparatus ( | 04-01-2010 |
| 20120075976 | DATA RECOVERY DEVICE AND METHOD - A data recovery device including an analog to digital converter (ADC), a filtering-equalizing unit, a zero crossing detector, a data phase locked loop, a data mapping unit and an estimation unit is provided. The ADC converts a radio frequency signal to a plurality of sampling data points. The sampling data points are converted to a plurality of retiming data points and a clock signal by the filtering-equalizing unit, the zero crossing detector and the data phase locked loop. The data mapping unit selects a plurality of maximum data points and minimum data points from the returning data points, and determines whether to map the maximum data points and the minimum data points to other levels for partially reconstructing the retiming data points. The estimation unit recovers the reconstructed retiming data points to a modulation signal. | 03-29-2012 |
| 20160196848 | OPTICAL MEDIUM REPRODUCTION APPARATUS AND OPTICAL MEDIUM REPRODUCTION METHOD | 07-07-2016 |
| 369590130 |
Selecting from a plurality of binary processing types | 2 |
| 20100195465 | METHOD OF RECORDING INFORMATION TO AND REPRODUCING INFORMATION FROM AN OPTICAL INFORMATION STORAGE MEDIUM - A method of recording information to a read-only optical information storage medium comprising a plurality of areas, including: recording data in at least one of the plurality of areas in the form of pits in a first pit pattern; and recording data in others of the plurality of areas in the form of pits in a second pit pattern different from the first. | 08-05-2010 |
| 20150124576 | ENCODING DATA - Data can be encoded in physical medium and represented by shapes having many various physical attributes. In various examples, data points are encoded and represented by the physical shape, color, size, and/or structure of objects. In one embodiment, holes in memory surface substrates represent data. Various attributes of such holes, including depth, profile size, profile shape, and/or angle can represent data. | 05-07-2015 |
| Entries |
| Document | Title | Date |
|---|
| 20080304389 | Method for Recording Data Having a Distinctive Feature - In the field of content distribution a typical problem is the protection of Digital Rights information (DRM), which is appended to the content and recorded on a record carrier in the form of a corresponding recorded pattern, from tampering by malicious users. According to some known schemes, the protection is implemented by linking the DRM to some physical distinctive feature of the corresponding recorded pattern. From this distinctive feature fingerprint data can be extracted with some conventional method, and used for the authentication of the DRM. The invention proposes a method of recording data wherein variations in the density of the recorded pattern are formed, as result of a perturbation in the recording process, which is a non-controllable substantially random process. | 12-11-2008 |
| 20090052293 | BIT DETECTION FOR MULTITRACK DIGITAL DATA STORAGE - The use of a multi-track format in both optical and magnetic data storage applications provides for a number of improvements to system performance including data density and data transfer rates. However, the full advantage in data density can only be achieved through the use of joint equalization and joint detection. The complexity of implementation of these functions arc addressed with a transform domain equalization architecture and a reduced complexity detection method based on a breadth first search of a time-varying trellis. The trellis results from a one dimensional representation of a two dimensional target response, obtained by arranging samples from adjacent tracks in a sequence that respects the original proximity of the samples. | 02-26-2009 |
| 20090103411 | DECODE DEVICE, REPRODUCTION APPARATUS, AND METHOD FOR DECODING - A decoding apparatus includes a burst cutting area (BCA) signal interval measuring device which measures a signal interval of a BCA area and which outputs BCA signal interval information, a T converter which obtains T information from the BCA signal interval information, a sequencer which detects a space area based on a first threshold value and which outputs an output enable signal based on the T information and a detecting result, wherein the output enable signal shows that a signal is obtained from a data area of the BCA area, and the space area is a non-signal area of the BCA area, and a channel data converter which converts the T information into channel data based on the output enable signal from the sequencer. | 04-23-2009 |
| 20100195464 | INTEGRATED CIRCUIT, OPTICAL DISC SYSTEM AND TRACKING ERROR SIGNAL GENERATION METHOD - A first comparator ( | 08-05-2010 |
| 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 |
| 20110090779 | APPARATUS FOR GENERATING VITERBI-PROCESSED DATA - The invention discloses an apparatus for generating a Viterbi-processed data using an input signal obtained from an optical disk, including a Viterbi module and a binary signal enhancing module. The Viterbi module is configured to process the input signal according to a binary signal. The binary signal enhancing module is configured to boost the input signal and generate the binary signal accordingly. | 04-21-2011 |
| 20110222387 | OPTICALLY LOCKED PHOTON ECHO APPARATUS AND METHOD - Disclosed herein is an optically locked photon echo apparatus and method, which can solve the problem of limited echo efficiency and can overcome constraints on the conventional storage time being limited to the spin dephasing time. The optically locked photon echo apparatus of the present invention includes a nonlinear optical medium and an optical pulse generation unit. The nonlinear optical medium is provided with three energy levels | | 09-15-2011 |
| 20120163145 | OPTICAL DATA STORAGE MEDIA - Optical data storage media for bit-wise recording of a microhologram using an incident radiation at a wavelength of about 405 nm are provided. The optical storage medium includes (a) a non-photopolymer polymer matrix; (b) a non-linear sensitizer comprising a phenylethynyl platinum complex, wherein the non-linear sensitizer is capable of triplet-triplet energy transfer from an upper triplet state (T | 06-28-2012 |
| 20140119167 | INFORMATION DEVICE AND METHOD FOR PERFORMING INFORMATION PROCESSING - The present application discloses an information device for performing optical information processes for a recording medium including a phase-change recording layer which becomes amorphous under irradiation with pulsed amorphization light that has prescribed amorphization energy Ew. The information device includes an irradiator configured to irradiate a prescribed region of the phase-change recording layer with pulsed light and an energy setting portion which sets crystallization energy Ee for the pulsed light to crystallize the prescribed region. The crystallization energy Ee per the pulsed light, which is set by the energy setting portion, is greater than the amorphization energy Ew per the pulsed amorphization light. | 05-01-2014 |
