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| Number | Title | Issue Date |
| 8139449 | Method and apparatus for eliminating errors in a seek operation on a recording medium A method and apparatus for eliminating errors in a seek operation on a recording medium are provided. Given a target address on a recording medium, a reading device is moved to seek the target address, and it is determined whether or not a signal is read out at the ... | 03/20/2012 |
| 8000179 | Optical disc including two different sets of sectors having identical IDs An optical disc including: sectors each having a sector ID; a first area having a first set of sectors sequentially arranged on the disc according to their respective IDs; a second area having a second set of sectors sequentially arranged on the disc according to th... | 08/16/2011 |
| 7995426 | Optical disk apparatus and method It is highly precisely determined as to whether or not a laser-irradiated position on an optical disk is positioned within an identification area (BCA) in which identification information is recorded, and the position of the identification information area is effici... | 08/09/2011 |
| 7957227 | System for preventing excessive skipping on audio disks The present invention provides for a method for reducing undesirable skipping during playback of a compact disc in a compact disc player. A lens system of the compact disc player reads audio data and subcode data from the compact disc. The subcode data includes Q ch... | 06/07/2011 |
| 7602677 | Optical disk device An optical disk device includes a pickup head configured to record and read data on and from an optical disk, and a recording/reproducing circuit such as a RF amplifier. The optical disk device also includes a control section configured to determine whether or not r... | 10/13/2009 |
| 7426173 | Method and apparatus for definition of signal for record medium In an optical information record medium including a plurality of record layers that are recordable, various signal characteristics with respect to an area X in a record layer A (second layer) among the plurality of record layers are defined under a condition that an... | 09/16/2008 |
| 7369625 | Apparatus and method for slicing RF signal and compensating for the slice level of RF signal in disk drive An apparatus and method for slicing an RF signal and compensating for the slice level of an RF signal reproduced from a disk, which minimizes a block error rate by optimizing the slice level of the RF signal according to variations in symmetry of the RF signal when ... | 05/06/2008 |
| 7366061 | Information recording apparatus, information reproducing apparatus, and method and system for recording and reproducing information in a plurality of levels of recording units High speed access to an information recording medium is possible by preparing information relative to a lower level recording unit, e.g., a fragment, which is set smaller than a higher level recording unit, e.g., a session. A fragment identifier, typically, a fragme... | 04/29/2008 |
| 7362665 | Seek method of optical disks and optical storage device An optical disk includes a first area, a second area having time information undistinguishable from time information of the first area and a third area having unique time information. The third area is divided into a plurality of sub-areas. Peculiar zone numbers are... | 04/22/2008 |
| 7330413 | Smart burn method for optical drive The present invention is smart burn method for optical drives. When the laser pick-up head bears great oscillations along the vertical and horizontal directions, the laser light cannot focus on the track accurately that causes the failure of writing. The present inv... | 02/12/2008 |
| 7317671 | Apparatus and method for compensating for tilt An apparatus and a method of playing an optical recording medium, including a method of compensating for a tilt by a real time tilt detection before and during a playing operation of the optical recording medium. A tilt compensating apparatus includes an optical pic... | 01/08/2008 |
| 7274627 | Record carrier and apparatus for scanning the record carrier A record carrier has a servo track indicating an information track intended for recording information blocks, which servo track has a variation of a physical parameter, referred to as wobble. The wobble is modulated for encoding record carrier information, such as a... | 09/25/2007 |
| 7251201 | Method of searching new writable address for optical recordable medium A method of searching a new writable address (NWA) for an optical recordable medium includes providing an optical pickup head and setting a first search starting point thereof; determining if NWA is located at the latest track and setting a search finishing point of... | 07/31/2007 |
| 7248541 | Optical disk device and access method for optical disk device An optical disk device has a recording information management portion which detects a distribution of a recorded region R and an unrecorded region M based on reflection light received by an optical head and an access target setting circuit which determines an access... | 07/24/2007 |
| 7245573 | Apparatus and method for detecting sector sync signal on an optical storage medium An apparatus and method to detect an LPP sync signal on an optical storage medium include a frame sync bit detection unit detecting frame sync bits from the LPP sync signal on the optical storage medium and a sync detection unit determining whether continuity exists... | 07/17/2007 |
| 7213752 | Method of preventing TOC reading error in a multi-session disc A method for preventing a TOC reading error in a multi-session disc includes determining a range of absolute time of a specific session, when a plurality of Q codes, each of which has a value in a “POINT” item not equal to B0, are read, determining whethe... | 05/08/2007 |
| 7209423 | Adaptive writing method for high-density optical recording apparatus and circuit thereof An adaptive writing method of a high-density optical recording apparatus and a circuit thereof. The circuit includes a discriminator for discriminating a magnitude of a present mark of input NRZI data and magnitudes of leading and/or trailing spaces of the input NRZ... | 04/24/2007 |
| 7191129 | System and method for data mining of contextual conversations A system and method for mining data from stored telephone conversations is provided. Users request advanced data processing on the recorded data, either on the live data stream or the data in storage. Processes search the recorded data for keywords and phrases that ... | 03/13/2007 |
| 7180841 | Recording method, recording medium, program, information recording medium, and information recording device A recording method is provided that can protect information recorded on a recording medium in a designated recording format. In response to a request for recording in a designated recording format among a plurality of recording formats applicable to the recording me... | 02/20/2007 |
| 7158465 | Apparatus and method for detecting and correcting relative address on optical storage medium An apparatus for detecting and correcting a relative address on an optical storage medium, includes a relative address detector which reads relative addresses recorded on the optical storage medium, a relative address continuity detector which checks whether the num... | 01/02/2007 |
| 7151734 | Player with two read heads for double-sided optical discs A double-sided optical disc, such as a DVD-18 disc, is formed with data tracks on each layer. The tracks on one side are oriented along one spiral while the tracks on the other side are oriented along a second spiral, the two spirals being oriented in opposite direc... | 12/19/2006 |
| 7149160 | Recording and playing back device with error correction If the number of retries made before data is read successfully reaches or exceeds a predetermined number, the data is saved in spare sectors SS and then data sectors DS which originally stored the data are overwritten. Furthermore, both when data is saved in spare s... | 12/12/2006 |
| 7136329 | Method and apparatus for canceling glitch noise from track crossing signal Provided are a method and apparatus for canceling noise from a track cross signal, a method for controlling an optical disc drive, an optical disc drive, and an optical disc reproducing apparatus. The method for removing noise from a track cross signal includes (a) ... | 11/14/2006 |
| 7133831 | System and method for processing personal telephony recorder commands A system and method for receiving and processing specialized voice commands during a conference call. Users issue vocal commands to retrieve information during the live conference or during later playback. A user may issue these commands by voice or by sending data ... | 11/07/2006 |
| 7120849 | Data storage medium having link zone and apparatus and method for recording/reproducing data on/from the data storage medium A data storage medium which includes a link zone, an apparatus and a method of recording data, and an apparatus and a method of reproducing data. The data storage medium includes a plurality of ECC blocks in which user data are stored, and a plurality of link zones ... | 10/10/2006 |
| 7116625 | Apparatus and method for detecting a position of a pickup An apparatus and method thereof detect a location of a pickup in an optical disc. A pickup reads and writes a signal from or to the optical disc. A spindle motor rotates the optical disc. A controller measures a rotational speed of the spindle motor to detect a curr... | 10/03/2006 |
| 7116607 | Apparatus and method of removing disturbances during optical recording and/or reproducing An apparatus to remove periodic disturbances in a recording medium having large eccentricity and deflection mass includes an actuator to change a position of a pickup in response to a combination of first and second compensation signals, an error detector to detect ... | 10/03/2006 |
| 7110330 | Method of providing sub-code data of optical disc drive to host computer A sub-code providing method that provides correct sub-code data when sub-code data is requested from a host when a reproduction mode is performed in an optical disc drive. In a method providing sub-code data to a host computer in an optical disc drive formed so that... | 09/19/2006 |
| 7110329 | Device and method for compensating feed control amount An optical pickup moves to the most inner circumference, then moves to outer circumference for a predetermined period and acquires address information there. Next, a difference XZ between the acquired address information and predetermined reference address informati... | 09/19/2006 |
| 7088668 | Optical recording medium with address information composed of pits The width W of the address pit (9) of an optical recording medium of intermediate address type is determined by W=k Tp/(λ/NA) where λ is the laser wavelength of the optical head of the optical disk device use, NA is the numerical aperture of the objective, ... | 08/08/2006 |
| 7076624 | Method and system for providing restricted access to a storage medium A method of restricting file access is disclosed wherein a set of file write access commands are determined from data stored within a storage medium. The set of file write access commands are for the entire storage medium. Any matching file write access command prov... | 07/11/2006 |
| 7075862 | Recording apparatus for optical recording medium A recording apparatus for a write-once and/or re-recordable optical recording medium includes a discriminator for discriminating a recording position information from the optical recording medium; a detector for detecting a deviation between the address information ... | 07/11/2006 |
| 7065198 | System and method for volume control management in a personal telephony recorder A system and method for recording a telephone conference and replaying a portion of the recording during the conference. Users participate by connecting through different types of networks using a device having a communication line connection. The recording can be i... | 06/20/2006 |
| 7057980 | Device and method for recording information A method and device for recording information blocks on a record carrier is described. The device has control means 20 for recording and retrieving position data indicative of the position of the recorded information blocks. The control means include a mappin... | 06/06/2006 |
| 7050373 | Method and apparatus for reproducing information An information signal is read from a recording medium to generate a reproduced signal. A sync detector detects a sync signal in the reproduced signal on a pattern search basis during operation in a direct mode. The sync detector sets a detection window and detects a... | 05/23/2006 |
| 7035172 | Method of logically erasing contents of a CD-RW disc while preserving disc ID A method is designed to logically erase contents of a CD-RW disc in response to an erase command. The CD-RW disc is optically rewriteable, and has a program area and a PMA area. The program area is recorded with the contents in the form of tracks. The PMA area is re... | 04/25/2006 |
| 7023775 | Recording apparatus and method, and reproduction apparatus and method for recording data to or reproducing data from a write once type information recording medium, and write once type information recording medium A recording method for recording, on a write once type information recording medium, management information representing a recording state of the write once type information recording medium is provided. The information recording medium includes data including a fir... | 04/04/2006 |
| 7020066 | Optical information recording medium, optical information recording apparatus, information processing apparatus, optical information recording method, program and recording medium An optical disk 101 includes a plurality of recording layers 102 and 103 and allows recording of information on each of the recording layers 102 and 103. A spiral guide groove having wobbles meandering in radial directions of the o... | 03/28/2006 |
| 7016289 | Information-processing apparatus, information-recording apparatus, information-processing system, information- recording method, program for information recording, and storage medium An apparatus for processing information is disclosed. The apparatus requests for recording of user data into an information-recording apparatus for recording in an information-recording medium having multiple recording layers, each of the layers having a data area f... | 03/21/2006 |
| 7003286 | System and method for conference call line drop recovery A system and method for identifying users dropped from a conference call and rejoining the user to the call upon reconnection. Users can participate in the conference by connecting through different types of networks using a device having one or more types of commun... | 02/21/2006 |
