Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
09/1998
09/01/1998US5802241 Communication system
09/01/1998US5802239 Apparatus for reproducing data not successively located on a recording medium
09/01/1998US5802174 Data recording medium
09/01/1998US5802123 Clock signal reproduction circuit and data reproduction circuit
09/01/1998US5802118 For reading binary data from a sequence of interpolated time sample values
09/01/1998US5802081 Digital information modulating apparatus
09/01/1998US5802059 Signal receiving apparatus
09/01/1998US5802032 Method and device for recording a mark having a substantially constant number of pulses per unit length independent of writing speed on an optical information carrier
09/01/1998US5802030 Information reproducing apparatus and method for reproducing information by using a multibeam spot
09/01/1998US5802028 Method of data management using recorded flags to discriminate used allocation blocks and unwritten allocation blocks
09/01/1998US5802027 Reproduction clock phase correction circuit
09/01/1998US5802026 For reproducing a digital recording signal on a disk
09/01/1998US5802020 Opitcal disk device having a plurality of record and playback units
09/01/1998US5802017 Information-signal recording apparatus and recording mode inquiring/specifying method
09/01/1998US5801649 Matched spectral null encoder/decoder
08/1998
08/28/1998CA2204477A1 Partitioned hard disk drives and partitioning scheme for hard disk drives
08/27/1998WO1998037558A2 Method of and arrangement for recording and reproducing video images
08/27/1998WO1998037555A1 Methods and apparatus for concurrently processing data from multiple tracks of an optical storage medium
08/27/1998WO1998037554A2 Methods and apparatus for synchronously reading multiple tracks of an optical storage medium using multiple reading beams
08/27/1998WO1998025364A3 Multi-station audio distribution apparatus
08/27/1998CA2281790A1 Methods and apparatus for concurrently processing data from multiple tracks of an optical storage medium
08/27/1998CA2281677A1 Methods and apparatus for synchronously reading multiple tracks of an optical storage medium using multiple reading beams
08/26/1998EP0860996A2 Adaptive signal processing method and circuit for a digital recording/reproducing apparatus
08/26/1998EP0860829A2 Video signal recording and reproducing apparatus
08/26/1998EP0860827A2 Data verification
08/26/1998EP0860826A2 PRML system with reduced complexity maximum likelihood detector
08/26/1998EP0860825A2 Information storage device having transducers operating in a pulse mode in synchronism with a clock
08/26/1998EP0860823A1 Apparatus having digital interface, network system employing the apparatus and copy protection method
08/26/1998EP0860008A1 Method and device utilizing erasure information for tracing surface defects in storage media
08/26/1998EP0860005A1 Control loops for low power, high speed prml sampling data detection channel
08/26/1998CN1191643A System and method for access control for data storage media
08/26/1998CN1191448A Information signal reproduction control system
08/26/1998CN1191366A Optical disk under-run protection
08/26/1998CA2205129A1 Memory manager for mpeg decoder
08/25/1998US5799197 Information reproducing apparatus by which reading operation from recording medium is controlled based on amount of data in memory
08/25/1998US5799145 Disk drive apparatus having security function using password
08/25/1998US5799130 Video signal recording apparatus
08/25/1998US5799129 Method and apparatus for reproducing coded data in which the coded data is decoded in reverse order of display
08/25/1998US5799128 Storage and retrieval of a data reduced digital video signal in/from a memory and recording and reproduction of a data reduced digital video signal on a longitudinal record carrier
08/25/1998US5799081 Illegal view/copy protection method and apparatus for digital broadcasting system
08/25/1998US5799046 Digital data signal reproducing apparatus
08/25/1998US5799033 Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data
08/25/1998US5798995 Information recording medium and apparatus and method for recording and reproducing information
08/25/1998US5798990 Transferring information via the lead-in area of an information carrier
08/25/1998US5798883 Method for servo defect management of a magnetic disk in hard disk drive
08/25/1998US5798818 Method for reproducing sound from an audiovisual production
08/25/1998US5798796 Coding priority and non-priority image data to be less than a predetermined quantity
08/20/1998WO1998036577A1 Predictive coding method and decoding method for dynamic image
08/20/1998WO1998036559A1 Object-based audio-visual terminal and bitstream structure
08/20/1998WO1998036544A1 Voice and image signal transmission method using code output
08/20/1998WO1998036414A1 Data recording/reproducing method and device
08/20/1998WO1998027681A3 Transmission system and recording system having a simplified symbol detector
08/20/1998WO1998008180A3 Digital optical media authentication and copy protection method
08/20/1998DE19806840A1 Copy protection method for audio signal recordings
08/19/1998EP0859523A2 Digital signal recording and/or reproduction methods and apparatus
08/19/1998EP0859503A2 Electronic watermark system
08/19/1998EP0859362A2 A data decoding apparatus
08/19/1998EP0858696A1 Cryptosystem for optical storage
08/19/1998EP0858659A1 Fast acquisition method for obtaining data from a transmission channel and a data receiver for carrying out this method
08/19/1998EP0858655A1 Information carrier, reading/writing device and reading device for writing and/or reading information blocks
08/19/1998EP0627112B1 Disk recording medium and reproduction method and apparatus thereof
08/19/1998CN1190848A Device and method for shielding video data error
08/19/1998CN1190779A Information file recording method and device thereof
08/19/1998CN1190776A Magnetic disk group with laser convex mark
08/19/1998CA2229976A1 Information recording method for preventing alteration, information rec ording apparatus, and information recording medium
08/18/1998US5796913 Video disk and video reproduction device which automatically extracts reproduction control data from a disk and subsequently modifies a control program which was stored in a ROM
08/18/1998US5796912 Digital signal recording/reproducing apparatus capable of recording sequence signals in slanted and longitudinal tracks on a magnetic tape
08/18/1998US5796910 Decoder for decoding still picture data and data on which data length of still picture data is recorded, reproducing apparatus for reproducing recording medium, and reproducing method thereof
08/18/1998US5796871 Method and apparatus for reproducing encoded data
08/18/1998US5796839 Encryption method, encryption apparatus, recording method, decoding method, decoding apparatus and recording medium
08/18/1998US5796828 Controlled-access broadcast signal receiving system
08/18/1998US5796826 Apparatus for limiting reproducible number of magnetic recording medium
08/18/1998US5796794 Method and apparatus for serial-to-parallel conversion of data based on sync recovery
08/18/1998US5796755 Error minimization in interleaved error correcting codes
08/18/1998US5796754 Apparatus for testing digital signal processor in optical disk player
08/18/1998US5796711 Optical disc having plural zones of recording tracks
08/18/1998US5796710 Information recording medium encoded to enable track following and method of recording
08/18/1998US5796703 Apparatus for controlling an electrical current passed to a writing device in an optical storage system
08/18/1998US5796694 Method and apparatus for driving a recording medium
08/18/1998US5796693 Data reproduction apparatus and data reproduction method
08/18/1998US5796692 Data reproducing method and apparatus for determining the interval between pits on a recording medium from a modulated read-out signal
08/18/1998US5796691 Spindle servo system for adjusting rotational speed in optical disk player
08/18/1998US5796690 Disc controller with improved data sync and re-sync mark detection
08/18/1998US5796546 Disk apparatus for controlling a seek operation of a read/write head to a target location of a recording disk
08/18/1998US5796541 Servo track writing measurement of gapped initial clock track to write full clock track
08/18/1998US5796540 Method and apparatus for synchronizing the rotations of data storage disks in a plurality of disk storage devices
08/18/1998US5796535 Sampled amplitude read channel employing a user data frequency synthesizer and a servo data frequency synthesizer
08/18/1998US5796534 Apparatus which performs an ID operation simultaneously with a servo operation using a data recording medium with the ID area recorded immediately before the servo area
08/18/1998CA2133710C Digital video tape recording/reproducing method for trick play
08/18/1998CA2083749C Maximum likelihood sequence estimation apparatus
08/13/1998WO1998035348A1 Equipment with digital interface and method for digital interfacing
08/12/1998EP0858230A1 Recording and producing an MPEG information signal on/from a record carrier
08/12/1998EP0858219A2 Method and apparatus for disabling anti-copy protection system in video signals
08/12/1998EP0858171A2 Encoding digital signals
08/12/1998EP0858075A2 Memory control in recording and/or reproducing apparatus
08/12/1998EP0858074A2 Encoding device and decoding device suitable for dubbing
08/12/1998EP0858073A1 Recording medium and reproducing device
08/12/1998EP0857390A1 Staggered stream support for video on demand
08/12/1998CN2287745Y Intelligent displaying and recording instrument
08/12/1998CN1190484A Dictation device for storage of speech signals
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