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| Number | Title | Issue Date |
| 8144560 | Method for preventing interchange of optical information carriers The invention relates to a method for preventing interchange of a first optical information carrier (1) with a second optical information carrier in an optical drive. Initially, the light (5) is focused at the first optical information carrier (1 | 03/27/2012 |
| 8111601 | Method of forming visual image on optical disk by laser beam A method is designed for forming a visual image having a specified shape on a surface of an optical disk by using an optical writing process of irradiating a laser beam onto the surface of the optical disk to form pits. The optical disk is normally capable of record... | 02/07/2012 |
| 8107342 | Laser driving device, optical unit, and light device which can change the setting information for a sampling pulse A laser driving device includes: a first pulse generating section; a second pulse generating section; a light emission waveform generating section; a light emission level pattern storing section; and a second storing section. The second storing section stores sampli... | 01/31/2012 |
| 8018811 | 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 informa... | 09/13/2011 |
| 8004948 | Data recording / reproducing apparatus and method using needle-shaped member The data to be recorded onto a recording medium is directly spread and then recorded onto the recording medium through a needle-shaped member, such as a probe. Upon reproducing the data, the data read from the recording medium is de-spread and reproduced. ... | 08/23/2011 |
| 7974170 | Application of wavelet transform filtering for processing data signals from optical data storage devices An optical data recovery system including an optical receiver configured to receive light reflected from an optical medium and produce modulated data, a processing unit configured to transform the modulated data into a series of transform coefficients respectively i... | 07/05/2011 |
| 7916605 | Joint DC minimization and bit detection The present techniques provide systems and methods for decoding a data signal with a control bit to improve bit estimation. The techniques in one embodiment involve using decoding algorithms to estimate the a posteriori state probabilities and the a posteriori trans... | 03/29/2011 |
| 7852729 | Optical disc apparatus with adjustable constraint length PRML An optical disc apparatus implementing a PRML and capable of recording and reading a plurality of disc media with different recording densities, wherein read compatibility between drives is ensured without relying solely on the error correction capability of the ECC... | 12/14/2010 |
| 7835246 | Decoding apparatus and method A decoding apparatuses and a method utilized in an optical storage device are disclosed. The decoding apparatus includes: a level slicer for setting a plurality of adjustable boundary values to distinguish a plurality of signal regions, and outputting a set of state... | 11/16/2010 |
| 7773482 | Optical record carrier containing special codes A record carrier of a disc-like optically inscribable type, has a preformed track in which an auxiliary signal including a sequence of codes recorded by a preformed track modulation. The codes include a sequence of address codes specifying the addresses of the track... | 08/10/2010 |
| 7649823 | Method for recording asynchronously produced digital data codes, recording unit used for the method, method for reproducing the digital data codes, playback unit used for the method and information storage medium A recording and reproducing system is broken down into a recording unit for producing a digital audio data signal from MIDI music data words asynchronously produced at irregular intervals and a playback unit for reproducing the MIDI music data codes from the digital... | 01/19/2010 |
| 7626908 | Target track seeking for data recording and reproducing system An object of the present invention is to record or reproduce time-sequential data to/from recording media exemplified by hard disks at the transfer speed closer to that of the recording medium. ... | 12/01/2009 |
| 7599272 | Method and apparatus for recording and reproducing multi-level information The present invention provides a multi-level information recording/reproducing method of recording or reproducing multi-level information by virtually setting cells at constant regular intervals on a track of an optical information medium where information is record... | 10/06/2009 |
| 7596069 | Optical medium aligned information system and method Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with information from both layers. For instance, a first set of identification in... | 09/29/2009 |
| 7573798 | Multi-level information reproducing method A multi-level information reproducing method is provided which can increase the degree of separation between distributions of cell boundary values to thereby improve the accuracy of reproduction. Specifically, in a method of reproducing multi-level information recor... | 08/11/2009 |
| 7529170 | Method and apparatus of modulating/demodulating data for an optical recording medium A method of modulating a source data to a code data under condition of a given code rate and run length limited (rll). The method including (a) inputting the source data, and (b) modulating the source data into code data by converting source data of 2 bits into code... | 05/05/2009 |
| 7443773 | Information storage medium and method and apparatus for recording/reproducing data An information storage medium having a lead-in area, a user data area, and a lead-out area, wherein information regarding whether additional information is recorded as wobbling pits is recorded in at least a portion of at least one of the lead-in and the lead-out ar... | 10/28/2008 |
| 7433289 | Frequency detection method for optical disc bit data reproduction apparatus The present invention relates to a frequency detection method for an optical disc bit data reproduction apparatus. The frequency detection method uses the optical disc bit data reproduction apparatus including an Analog to Digital Converter (ADC), an interpolator, a... | 10/07/2008 |
| 7414941 | Data recording device and data reproducing device The present invention provides a data recording device that can restrain the low-pass component in data to be written onto a recording medium without causing a problem in decoding the data using likelihood information. This data recording device includes: a data bit... | 08/19/2008 |
| 7414946 | 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... | 08/19/2008 |
| 7411878 | Apparatus and method for reproducing audio file A method of reproducing an audio file includes: applying a reproducing mode established based on an attribute information; obtaining at least a part of the audio file under the established reproducing mode; and determining whether the audio file is reproducible unde... | 08/12/2008 |
| 7411889 | Optical disc with wobbled tracks and apparatus using this optical disc Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the ... | 08/12/2008 |
| 7408850 | Method for decoding data received from a data source using hardware configuration data received from the same data source Today the storage of audiovisual (AV) data on storage media employs standardized coding schemes, e.g. MPEG-2. End user devices for AV presentation, like disc players, contain dedicated decoders implemented in hardware, which are able to decode data streams complying... | 08/05/2008 |
| 7408871 | Optical disc with wobbled tracks and apparatus using this optical disc Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the ... | 08/05/2008 |
| 7406009 | Information recording/reproducing apparatus and information reproducing method An information recording/reproducing apparatus and information reproducing method records information data, regardless of an external disturbance. According to a demodulated timing pulse, a synchronization signal and address data representative of an address is demo... | 07/29/2008 |
| 7403462 | 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... | 07/22/2008 |
| 7400569 | Optical disc with wobbled tracks and apparatus using this optical disc Address information is formed by M wobbles (integer M is the number of wobble waves) per bit as a basic unit, and is NRZ-recorded. Also, a sync signal used in sync detection of the address information is formed by N wobbles per bit as a basic unit (integer N is the ... | 07/15/2008 |
| 7400465 | Recording medium cartridge and recording/reproducing apparatus therefor The present invention relates to a recording medium cartridge memory and recording/reproducing apparatus. A recording medium cartridge consists of a recording medium and a cartridge memory in which a unique ID of the apparatus used for recording/reproducing the cart... | 07/15/2008 |
| 7397751 | Optical disk apparatus, method of recording information, and information recording medium A recorded stream generator generates a data block stream in synchronism with the phase of a recording clock, from the input data. The recorded stream generator further generates, for each predetermined data unit constituting the data block stream, a data phase refe... | 07/08/2008 |
| 7385901 | Data recording/reproducing apparatus and method using needle-shaped member The data to be recorded onto a recording medium is directly spread and then recorded onto the recording medium through a needle-shaped member, such as a probe. Upon reproducing the data, the data read from the recording medium is de-spread and reproduced. ... | 06/10/2008 |
| 7385903 | 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... | 06/10/2008 |
| 7382699 | Recording device, playback device, and contents transmission method An extracting circuit for extracting meta information from information forming contents is provided. The meta information extracted by the extracting circuit is recorded in a recording medium together with the contents and is used as management information. With thi... | 06/03/2008 |
| 7379502 | Method of converting digital data Disclosed is a method of digital data conversion. The method includes binding input digital data into unit blocks constituted by a plurality of bytes, modulation-coding each byte of the input data blocks by using a code conversion table, and allocating a merging bit... | 05/27/2008 |
| 7378994 | EFM/EFM+ encoder and method thereof An EFM/EFM+ encoder and a method thereof, performing digital sum value (DSV) protection in an Eight-to-Fourteen/Eight-to-Fourteen Plus (EFM/EFM+) encoding system to generate a data frame to be recorded on a recording medium. The method comprises modulating source da... | 05/27/2008 |
| 7372964 | Method and apparatus for recording information including secret information and method and apparatus for reproduction thereof An information recording method for recording content information in a recording medium having at least re-readable area, comprising converting, based on a first conversion rule φ1, first information including a first component for obtaining content control ... | 05/13/2008 |
| 7366070 | Storage medium including a burst cutting area (BCA) According to one embodiment, a storage medium includes a burst cutting area at an inner periphery, wherein the burst cutting area has includes plural burst-cutting-area data areas. ... | 04/29/2008 |
| 7359303 | Multi-dimensional coding for high-density storage media applications An asynchronous transfer mode digital document delivery system is provided. A customer premise unit is configured to permit a customer to order and receive a data stream. A buffer is coupled to the customer premise unit to store the data stream before transmitting t... | 04/15/2008 |
| 7355957 | Optical disc medium having a system information recording area of low recording density In order to stably carry out reproduction of information in an optical disc medium (10) using a PRML (partial-response maximum-likelihood) method for reproducing the signal, the optical disc medium (10) has not only a data recording area (14) wh... | 04/08/2008 |
| 7352682 | Storage medium including a burst cutting area (BCA) According to one embodiment, a storage medium includes a burst cutting area at an inner periphery, wherein the burst cutting area has includes plural burst-cutting-area data areas. ... | 04/01/2008 |
| 7342864 | Optical disk reproduction apparatus and optical disk reproduction method There are provided a wobble signal reading unit configured to read a signal corresponding to a wobble formed at a predetermined track from an optical disk on which address information is recorded by applying phase modulation to the wobble formed at the track, an add... | 03/11/2008 |
