Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
11/1999
11/10/1999CN1234583A Digit signal recording and reproducing apparatus and recording medium
11/10/1999CN1046391C Apparatus for accompanying song with picture and method for displaying of picture
11/09/1999US5983387 Information recording method, reproducing method, and reproducing apparatus
11/09/1999US5983349 Changer apparatus, method for locking security protection thereof, method for unlocking executing commands thereon, and computer for sending commands thereto
11/09/1999US5983319 Information recording and reproduction apparatus and a method of data caching including read-ahead capability
11/09/1999US5982984 Digital image data recording and reproducing apparatus and method for processing a high quality image stored in multiple frames on a recording medium
11/09/1999US5982978 Magnetic recording/reproducing apparatus and data arranging method for use in the apparatus
11/09/1999US5982977 Apparatus and method for synthesizing information signal and reproduction control signal and information signal recording apparatus
11/09/1999US5982976 Digital video signal processing apparatus
11/09/1999US5982901 Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
11/09/1999US5982891 Systems and methods for secure transaction management and electronic rights protection
11/09/1999US5982886 Unauthorized use preventing method for optical disks, optical disk having unauthorized use prevention function, and optical disk apparatus
11/09/1999US5982836 Phase synchronizer and data reproducing apparatus
11/09/1999US5982832 Apparatus and method for compensating for timing and phase error using a poly-phase filter
11/09/1999US5982729 Optical disk device and replacement processing method
11/09/1999US5982726 Multi-rate optical disc recording and reproducing apparatus
11/09/1999US5982724 Disk reproducing apparatus having active wide-range PLL device
11/09/1999US5982723 Data recording and reproducing method for multi-layered optical disk system
11/09/1999US5982718 Verifying data by controlling the gain of an amplifying means according to a window width comparator
11/09/1999US5982572 Method and apparatus for enabling fast access to a logical block on a tape medium
11/09/1999US5982569 Read/write data interface and method of operation
11/09/1999US5982447 System and method for combining two data streams while maintaining the continuous phase throughout the combined data stream
11/09/1999US5982310 Digital signal processing apparatus
11/09/1999US5982308 Technique for compensation for missing pulses when decoding gray code data in hard disk drive
11/09/1999US5982208 Clock multiplier having two feedback loops
11/09/1999US5981016 Magneto-optical medium and reproducing device for the same
11/04/1999WO1999056283A2 Apparatus for reproducing information from a record carrier
11/04/1999WO1999048092A3 Optical record carrier
11/04/1999WO1999046766A3 Optical read/write apparatus
11/04/1999WO1999040574A3 Arrangement for reading information from a magnetic record carrier
11/03/1999EP0954173A1 Digital recording and reproducing system with copy protection
11/03/1999EP0954168A2 Adaptive display speed automatic control device of motional video and method therefor
11/03/1999EP0953980A2 Reproducing apparatus with improved access to text information
11/03/1999EP0953977A1 Recording medium for storing real time recording/reproduction information, method and apparatus for recording and reproducing in real time and file operating method using the same
11/03/1999EP0953976A1 Information processing method and apparatus, automovive information system and method of controlling the same, and storage medium on which an information processing programm is stored
11/03/1999EP0891622B1 Power saving method and apparatus for use in multiple frequency zone drives
11/03/1999EP0755611B1 Recording and reproduction of a trick mode video signal
11/03/1999CN1233832A 波形均衡器 Waveform equalizer
11/03/1999CN1233830A Acoustic equipment for recording and reproducing compressed format document
11/02/1999US5978954 On-the-fly error detection and correction buffer processor
11/02/1999US5978883 Block interleaving and deinterleaving method and device therefor
11/02/1999US5978812 Information processor and method of information processing
11/02/1999US5978782 Neural network signal processor for magnetic storage channels
11/02/1999US5978757 Post storage message compaction
11/02/1999US5978755 Dictation device for the storage of speech signals
11/02/1999US5978492 Sound source data generation method, recording medium, and sound source data processing device
11/02/1999US5978486 Data scrambling method, data scrambling apparatus, data descrambling method, and data descrambling apparatus
11/02/1999US5978482 Method and system for protection of digital information
11/02/1999US5978426 Phase locked loop system and method for use in a data channel
11/02/1999US5978350 Optical disc and optical disc driving device
11/02/1999US5978338 Apparatus for reproducing short length data stored on an optical disk
11/02/1999US5978336 Optical disk finalization method and optical disk finalization apparatus
11/02/1999US5978335 Integrated calibration apparatus for a multi-mode information storage system
11/02/1999US5978333 Recording/reproducing apparatus and method
11/02/1999US5978322 Optical recording medium having a parameter for identifying the format of data and a reproducing device thereof
11/02/1999US5978170 Recording/reproducing apparatus and servo-information recording method
11/02/1999US5978167 Disk unit creating a position sensitivity correction value using positive and negative cross point values of two-phase servo signals
11/02/1999US5978162 Synchronous read channel integrated circuit employing a channel quality circuit for calibration
10/1999
10/28/1999WO1999055055A1 System for keying protected electronic data to particular media to prevent unauthorized copying
10/28/1999WO1999054877A1 Audiovisual data recording / reproducing system
10/28/1999WO1999054870A1 Recording/reproducing apparatus
10/28/1999WO1999054663A1 Reproducing device
10/28/1999WO1999044201A3 Device for write compensation in magnetic-media recording
10/27/1999EP0952736A1 Reproducing recording media
10/27/1999EP0952691A2 Receiver with channel swapping facilities for receiving a digital audio signal comprising multiple digital audio channels
10/27/1999EP0952669A1 Phase comparison circuit
10/27/1999EP0952580A2 Recording/playback method and apparatus, presentation medium and recording medium
10/27/1999EP0952579A2 Information reproduction apparatus
10/27/1999EP0952578A2 Information record medium and apparatus for reproducing the same
10/27/1999EP0952577A2 Power saving system for optical disc recording/reproducing apparatus
10/27/1999EP0952573A2 Recording medium for storing defect management information for recording real time data, defect managing method therefore, and real time data recording method
10/27/1999EP0951719A1 Method of and arrangement for formatting a magnetizable medium
10/27/1999CN1233340A Method and system for managing access to data
10/27/1999CN1233053A Error correction apparatus
10/27/1999CN1233052A Recording medium for storing defect management information for recording real time data, defect managing method therefor, and real time data recording method
10/27/1999CN1233051A Information recording method and apparatus, information reproducing method and apparatus
10/27/1999CN1233044A Optical disc, tracking controlling apparatus and method, and focus controlling apparatus and method
10/27/1999CN1233043A Method for generating land/groove switching signal from polg type disc and apparatus therefor
10/27/1999CN1046073C Video library system and method therefor
10/26/1999US5974583 Error correcting method and device
10/26/1999US5974581 Information recording method, reproducing method, and reproducing apparatus
10/26/1999US5974580 Concurrent row/column syndrome generator for a product code
10/26/1999US5974379 Methods and apparatus for gain controlling waveform elements ahead of an attack portion and waveform elements of a release portion
10/26/1999US5974225 Video data recording and reproducing apparatus and method thereof
10/26/1999US5974220 Video editing method, non-linear video editing apparatus, and video editing program storage medium
10/26/1999US5974156 Circuit arrangement for influencing the frequency response of a digital audio signal
10/26/1999US5974140 Information carrier and recording and/or reproducing apparatus and/or initializing apparatus
10/26/1999US5974099 Unreliability detector apparatus and reproduction apparatus provided with the unreliability detector apparatus
10/26/1999US5974088 Digital data slicer
10/26/1999US5974023 Information recording medium, information recording method and information recording apparatus
10/26/1999US5974015 Digital recorder
10/26/1999US5974007 Apparatus for moving a carriage assembly from an initial position to a target position
10/26/1999US5974006 Method for reading CD-ROM
10/26/1999US5974005 Information processing apparatus and method enabling editing data tracks by using table data
10/26/1999US5973870 Adaptive and in-situ load/unload damage estimation and compensation
10/26/1999US5973868 Recording and/or reproducing apparatus with means for establishing an after-recording area
10/26/1999US5973625 Coding method and coder of a D-VHS codec system using forward Reed Solomon error correction
10/26/1999CA2023960C Optical disc recording apparatus
10/26/1999CA2019659C Receiver for data transmission system with nonlinearities
10/26/1999CA2013052C Method of and device for recording data signals on a record carrier of an inscribable type and device for reading such a record carrier