Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
06/1999
06/30/1999CN1221177A Recording/reproducing method and apparatus, for video signal having copy control information
06/30/1999CN1221175A Jitter measuring method utilizing A/D conversion and device
06/29/1999US5918001 Disk drive apparatus and error recovery method in the disk drive
06/29/1999US5918000 Data transfer control device and method for switching memory regions between storage devices when accessing is halted
06/29/1999US5917914 DVD data descrambler for host interface and MPEG interface
06/29/1999US5917912 Component assembly
06/29/1999US5917910 Encrypting method and apparatus, recording method, decrypting method and apparatus, and recording medium
06/29/1999US5917908 File protection system, software utilization system using the file protection system and storage medium used in the software utilization system
06/29/1999US5917863 To demodulate a reproduced signal in a recording/reproducing apparatus
06/29/1999US5917862 Information reproducing apparatus and its automatic equalization maximum likelihood detecting method
06/29/1999US5917859 Method and apparatus for implementing a viterbi detector for PRML channels
06/29/1999US5917857 Digital modulation apparatus, a digital modulation method, and a recording medium therefor
06/29/1999US5917855 Method and apparatus for detecting an original signal from a data storage device
06/29/1999US5917841 Code error detecting circuit
06/29/1999US5917836 Data decoding apparatus and method and data reproduction apparatus
06/29/1999US5917794 Information detecting device having circuit capable of providing optimum AGC operation
06/29/1999US5917793 Digital information recording apparatus
06/29/1999US5917792 Recording medium, recording medium playback device, recording medium playback method, recording medium recording device and recording medium recording method
06/29/1999US5917783 Optical disk, a recording/reproducing apparatus and method for the optical disk
06/29/1999US5917782 Method of reproducing high-speed audio data by a CD-ROM player
06/29/1999US5917781 Apparatus and method for simultaneously reproducing audio signals for multiple channels
06/29/1999US5917735 Apparatus and method for compensating for timing and phase error using a poly-phase filter
06/29/1999US5917724 Method for predicting disk drive failure by monitoring the rate of growth of defects within a disk drive
06/29/1999US5917671 Recording method and information medium for a plurality of longitudinal track bundles enabling tracking during recording and/or playback of track bundles
06/29/1999US5917670 In a hard disk drive
06/29/1999US5917669 Method for transferring operational data between stations during a disk format process
06/29/1999US5917668 Synchronous read channel employing a frequency synthesizer for locking a timing recovery phase-lock loop to a reference frequency
06/29/1999US5917559 Digital video data decoding apparatus and control method therefor
06/29/1999US5917538 Data Transmission apparatus of video-on-demand or near video-on-demand system
06/29/1999US5917482 Data synchronizing system for multiple memory array processing field organized data
06/29/1999US5916315 Viterbi detector for class II partial response equalized miller-squared signals
06/29/1999US5916301 Sample rate conversion for synchronous variable rate
06/24/1999WO1999031888A1 Optical disc and computer-readable storage medium, and recording method and apparatus therefor
06/24/1999WO1999031842A1 Conditional use private key distribution
06/24/1999WO1999031661A1 Optical disc recording/reproducing method, optical disc, and optical disc device
06/24/1999WO1999031657A2 Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus, and optical disc reproducing method
06/24/1999WO1999031590A1 File storage method, data storage apparatus, storage media management method, file management method, method of writing received data in storage media, and program storage media
06/24/1999WO1999010858A3 Method for protecting content using watermarking
06/23/1999EP0924962A1 Encoding method and device, decoding method and device, and recording medium
06/23/1999EP0924930A2 A digital information recording apparatus with copyright protection
06/23/1999EP0924708A2 MPEG portable sond reproducing system and a reproducing method thereof
06/23/1999EP0924705A2 CD player for CD-like recording formats
06/23/1999EP0924704A2 Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus and optical disc reproducing method
06/23/1999EP0924700A2 Standby signal for audio FM demodulator
06/23/1999EP0924699A2 Digital audio tone evaluating system
06/23/1999CN1220805A Method and system for transferring content information and supplemental information relating thereto
06/23/1999CN1220804A Picture coding device, picture coding method, picture decoding device and its method, and providing medium
06/23/1999CN1220801A Recording of trick play signals on record carrier
06/23/1999CN1220762A Recording of trick play signal on record carrier
06/23/1999CN1220756A System for copy protection of recorded signal
06/23/1999CN1220460A Copy-guard system and information recording medium used in same system
06/23/1999CN1220459A Copy preventing apparatus and information recording medium used in this copy preventing apparatus
06/23/1999CN1220458A Image signal recording device and recording method for image signal
06/23/1999CN1220457A CD player for CD-like recording formats
06/23/1999CN1220447A Data coding method of optical disk
06/23/1999CN1220443A Recording apparatus, playback apparatus, recording/playback apparatus, recording/playback method, presentation medium and recording medium
06/22/1999US5915081 Arrayed recording apparatus with selectably connectable spare disks
06/22/1999US5915067 Multimedia optical disc facilitating branch reproduction to parental lock sections using reduced control information and a reproducing device for said disc
06/22/1999US5915066 Output control system for switchable audio channels
06/22/1999US5915065 Magnetic recording and reproducing method
06/22/1999US5915019 Systems and methods for secure transaction management and electronic rights protection
06/22/1999US5915018 Key management system for DVD copyright management
06/22/1999US5914989 PRML system with reduced complexity maximum likelihood detector
06/22/1999US5914967 Method and apparatus for protecting disk drive failure
06/22/1999US5914941 Portable information storage/playback apparatus having a data interface
06/22/1999US5914930 Information recording medium and information reproducing apparatus for use therewith
06/22/1999US5914928 Information recording disk having replacement area
06/22/1999US5914927 Optical disk apparatus
06/22/1999US5914924 Reproducing or recording device for reproducing, or recording on, an optical recording medium
06/22/1999US5914921 Disk drive apparatus initializing optical head during acceleration of disk, detecting control information and adjusting light emission prior to disk reaching a constant speed of rotation
06/22/1999US5914917 Recording table-of-contents on erasable and rewritable optical disc in a digital versatile disc recorder
06/22/1999US5914914 Method and apparatus for storing and presenting visual and audible information to an individual
06/22/1999US5914828 System architecture for HDD
06/22/1999US5914827 Method and apparatus for implementing a noise generator in an integrated circuit disk drive read channel
06/22/1999CA2081365C Disk array system
06/17/1999WO1999030414A1 Apparatus and methods for enhancing electronic audio signals
06/17/1999WO1999030321A1 Disc player for playing discs with optically stored data
06/17/1999WO1999017456A9 Method and apparatus for encoding a binary signal
06/17/1999WO1999006992A8 Method and apparatus for increasing the sample rate of a disc drive with low overhead
06/17/1999CA2313695A1 Apparatus and methods for enhancing electronic audio signals
06/16/1999EP0923252A2 Synchronization device for decoders
06/16/1999EP0923242A2 Copy prevention circuit capable of preventing a copy of image/aural sound signals without change of data structure in digital transmission
06/16/1999EP0923077A1 Method and device for VLC (d,k;m,n;r) coding
06/16/1999EP0923076A1 Recording and reproduction of data and provision and collection of information
06/16/1999EP0923070A2 Optical disc recording and reproducing apparatus
06/16/1999EP0923026A1 Storage medium having electronic circuits
06/16/1999EP0922334A2 Data compression and expansion of an n-level information signal
06/16/1999EP0922251A1 Storage system
06/16/1999EP0819306A4 Method and apparatus for treating a video signal
06/16/1999CN2324616Y Improved audio signal converter
06/16/1999CN1220066A Digital broadcast program recording and reproducing device
06/16/1999CN1219807A Synchronization device
06/16/1999CN1219737A Method and apparatus for reproducing recording medium
06/16/1999CN1219736A Digital signal recording apparatus, method, remote controlling apparatus and dubbing system
06/16/1999CN1219734A Reed solomon error correction apparatus and method with shared memory approach
06/16/1999CN1219731A Optical disc driver and timing signal generator, and information recording and reproduction method
06/16/1999CN1219730A 光盘记录重放装置 The optical disc recording and reproducing apparatus
06/16/1999CN1219729A Data slice circuit and data slice method
06/16/1999CN1219728A Optical disc copy management system
06/16/1999CN1219726A Data recording apparatus and method