Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
11/1999
11/24/1999CN1236164A Reproducing and recording apparatus, decoding apparatus, recording apparatus, and its relative method
11/24/1999CN1236163A Editing system and method and distribution medium
11/24/1999CN1236161A Reproducing method and record medium
11/24/1999CN1236153A Audio signal processing apparatus and audio signal reproducing apparatus
11/24/1999CN1046834C Video cassette recorder capabpe of automatically removing interferences
11/23/1999US5991911 Concurrent generation of ECC error syndromes and CRC validation syndromes in a DVD storage device
11/23/1999US5991724 Apparatus and method for changing reproduction speed of speech sound and recording medium
11/23/1999US5991504 Recording apparatus for compressing and recording moving and still images
11/23/1999US5991501 Apparatus and method for recording and reproducing digital signals on first and second areas of a storage medium
11/23/1999US5991500 Copy control for a video signal with copyright signals superimposed as predetermined bits in the VBID data of the video signal
11/23/1999US5991497 Method and apparatus for recording and reproducing trick play data to and from a digital video tape
11/23/1999US5991496 Recording/reproducing apparatus and method thereof
11/23/1999US5991399 Method for securely distributing a conditional use private key to a trusted entity on a remote system
11/23/1999US5991257 Disk with zones of tracks segmented into data frames, with tracks closer to the disk edge having more frames, and a data recording/reproducing method and apparatus using such disk
11/23/1999US5991253 Optical disk device and replacement processing method
11/23/1999US5991252 Method and apparatus for reducing the width of marks written in optical media
11/23/1999US5991250 Optical disc recording method and apparatus for recording clock stabilization information on a portion of a unit block adjacent a discontinuous recording position
11/23/1999US5991222 Method for writing and searching on a tape for a digital signal writing and reproducing device
11/23/1999US5991109 Magnetic recording and reproducing apparatus with signal delay and selection
11/23/1999US5991108 Recording and reproducing apparatus
11/23/1999US5991107 Sychronous read channel
11/23/1999US5991106 AGC circuit of disk storage apparatus
11/23/1999US5990406 Editing apparatus and editing method
11/23/1999US5989671 Optical recording medium and manufacturing method thereof
11/23/1999US5988872 Sector data decoding method and circuit in a CD-ROM drive
11/18/1999WO1999059258A1 Digital hidden data transport (dhdt)
11/18/1999WO1999059092A1 Apparatus for data distribution, and terminal for data distribution
11/18/1999WO1999059058A1 Information processor, information processing method, information recorded medium, and information processing system
11/18/1999WO1999047996A3 Device and method for organizing and accessing stored data
11/18/1999DE19920469A1 Hardware bit coder for data to be transmitted
11/18/1999DE19911460A1 Signal processing apparatus for magnetic head of magnetic disc unit
11/18/1999DE19847120A1 Control logic for an ATAPI interface
11/18/1999CA2331898A1 Digital hidden data transport (dhdt)
11/17/1999EP0957660A2 Audio signal processing and reproducing
11/17/1999EP0957487A1 Data transmission apparatus and method therefor
11/17/1999EP0957484A1 Read while write method in data storage device
11/17/1999EP0957483A1 Apparatus and method for recording binary data on a magnetic card using a DMA unit
11/17/1999EP0957482A2 Data recovery circuit
11/17/1999EP0957475A1 Optical recording method and optical recorder
11/17/1999EP0956702A1 Vcr-like functions rendering video on demand
11/17/1999EP0956559A2 A method and device for interfacing variable-rate sampled digital audio information to a string of uniform-sized blocks, and a unitary medium so produced by a write-interfacing
11/17/1999EP0956558A2 A method and device for storing audio-centered information by a table-of-contents (toc) mechanism and also by a file-based access mechanism through a root directory that contains a highest level toc directory, and a unitary storage medium containing such information
11/17/1999EP0956557A1 A method for storing audio-centered information with a multi-level table-of-contents (toc) mechanism with one master-toc and sub-tocs for various audio formats, a device for use with such mechanism and a unitary storage medium containing such mechanism
11/17/1999EP0956555A1 Method and device for recording audio, a record carrier and playback device
11/17/1999EP0956554A1 Amplitude detector for signals having a periodical character, recorded on a recording medium, and optical tape recorder comprising such an amplitude detector
11/17/1999EP0956553A2 Recording and reproduction of a first signal with a first bitrate and a second information signal with a second bitrate larger than the first bitrate
11/17/1999EP0701715A4 A method for providing parity in a raid sub-system using a non-volatile memory
11/17/1999CN1235452A Data transmission apparatus and method therefor
11/17/1999CN1235451A Data transmission apparatus and method thereof using command adapted thereto
11/17/1999CN1235350A Error compensation device for disk signal reproduction apparatus
11/17/1999CN1235347A Recording/reproducing apparatus and method and program offering medium
11/17/1999CN1235346A Image and/or voice recording device and method
11/17/1999CN1235345A High bit rate driver for semiconductor laser device and electric acceptive modulator
11/17/1999CN1235342A Recording apparatus and method, and reproducing apparatus and method
11/17/1999CN1235339A Disc reproducing apparatus and method
11/17/1999CN1046608C Apparatus and method for data compression using signal-weighted quantizing bit allocation
11/16/1999US5987634 Channel quality circuit in a sampled amplitude read channel
11/16/1999US5987630 Method of descrambling scrambled data using a scramble pattern and scramble pattern generator
11/16/1999US5987607 Copy preventing system for multi-media equipment
11/16/1999US5987542 Serial interface circuit for adaptively supporting the serial interface of read/write channel circuits in a magnetic disk drive
11/16/1999US5987418 Synchronous decoding of packetized audio for different reproduction modes
11/16/1999US5987417 DVD audio disk reproducing device and method thereof
11/16/1999US5987400 System for monitoring the throughput performance of a disk storage system
11/16/1999US5987214 Apparatus and method for decoding an information page having header information and page data
11/16/1999US5987126 Device having a digital interface and a network system using such a device and a copy protection method
11/16/1999US5987082 Playback apparatus and playback method
11/16/1999US5987066 Digital data transmitting method
11/16/1999US5986990 Device for detecting digital bit in optical disc reproducing apparatus
11/16/1999US5986988 Optical disk recording method employing a plurality of recording areas and apparatus therefor
11/16/1999US5986987 PRML readout system for optical disk
11/16/1999US5986986 Method for regenerating synchronizing signal by judging whether or not the extracted synchronizing signal includes the second and third window signals
11/16/1999US5986980 Optical disc device capable of recording information data as a plurality of linking packets
11/16/1999US5986843 Writing and reading high density magnetic tapes
11/16/1999US5986841 Disc drive having a serial preamplifier interface with broadcast mode addressing
11/16/1999US5986835 Control apparatus and method for conveyance control of medium in library apparatus and data transfer control with upper apparatus
11/16/1999US5986834 Clock circuit for the reading of sequentially recorded information elements in a multitrack recording system
11/16/1999US5986833 Data recording method for recording absolute address data on a tape storage medium
11/16/1999US5986831 Waveshaping circuit for shaping an analog waveform having unequal positive and negative peak levels so that the positive and negative peak levels are equal
11/16/1999US5986830 Read/write channel write precompensation system and method using one or more delay clocks
11/16/1999US5986829 Digital recording and reproducing apparatus for high-speed copying of tape
11/16/1999US5986593 Reproducing apparatus, error correcting device and error correcting method
11/16/1999US5986589 Multi-stream audio sampling rate conversion circuit and method
11/16/1999US5984521 Method and apparatus for generating descrambling data for CD-ROM decoder
11/11/1999WO1999057941A1 Matrix-encoded surround-sound channels in a discrete digital sound format
11/11/1999WO1999057723A2 Anti-copying methods and devices for digital information signals
11/11/1999WO1999057719A1 System and method for recording of information on a holographic recording medium, preferably an optical card
11/11/1999WO1999041906A3 Reproduction of a digital information signal in a trick play reproduction mode
11/11/1999DE19820309A1 Method of estimating the risk of data loss on storage media with error correction
11/11/1999CA2331111A1 Anti-copying methods and devices for digital information signals
11/10/1999EP0955773A2 Apparatus for generating recording signal including image data and copy condition information
11/10/1999EP0955731A2 Lossless encoding and decoding system
11/10/1999EP0955638A2 Data recording and reproducing apparatus and method
11/10/1999EP0955635A1 Recording apparatus and method, and reproducing apparatus and method
11/10/1999EP0955634A1 Anti-copying system for audio signals
11/10/1999EP0955630A1 Apparatus for writing and reading optical recording medium
11/10/1999EP0954861A1 Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa
11/10/1999EP0954774A1 Method and apparatus for encrypting and for decrypting data arranged in a data sector
11/10/1999EP0796491B1 Apparatus for compensating for non-linear characteristics of magnetoresistive heads
11/10/1999CN1234944A Embedding supplemental data in encoded signal
11/10/1999CN1234681A Moving-image self-adaptive speed-displaying automatic control apparatus and method thereof