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Browse by Category: Main > Information Technology
Class Information
Number: 369/59.24
Name: Dynamic information storage or retrieval > Binary pulse train information signal > Having specific code or form generation or regeneration processing > During storage
Description: Subject matter the procedure is performed while information signal is being stored.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
5881037 Recording medium, recording method and apparatus, and reproduction method and apparatus Mar. 9, 1999
5867475 Optical record carrier and method for recording and reproducing signals therefrom Feb. 2, 1999
5862115 Method and apparatus for recording an information signal with scrambling thereof Jan. 19, 1999
5818806 Method and apparatus for providing equalization for the reading of marks on optical data storage media Oct. 6, 1998
5798996 Method and apparatus for recording digital data by controlling the location of the edge of recording pits through modulation of a laser Aug. 25, 1998
5768246 Method and apparatus for recording and reproducing digital data using frequency domain conversion and detection Jun. 16, 1998
5757735 Magento-optical recording method using a multi-pulse pattern generation circuit May. 26, 1998
5748586 Data recording method and apparatus for minimizing the influence of inter symbol interface May. 5, 1998
5712837 Method and apparatus for recording data Jan. 27, 1998
5699337 Information recording apparatus employing pit edge shifting wherein an error correcting circuit generates an error correction code which is added at part of bits of a predetermined plurality o Dec. 16, 1997
5687157 Method of recording and reproducing digital audio signal and apparatus thereof Nov. 11, 1997
5673243 Encoding unit and storage unit using the same Sep. 30, 1997
5661707 Method and apparatus for recording an information signal with scrambling thereof Aug. 26, 1997
5615188 Recording method and recording and reproducing apparatus for optical disk Mar. 25, 1997
5587983 System for recording digital information in a pulse-length modulation format Dec. 24, 1996
5581528 System for recording digital information in a pulse-length modulation format Dec. 3, 1996
5577012 Data recording method, data recording apparatus, and data recording medium Nov. 19, 1996
5559781 System for recording digital information in a pulse-length modulation format Sep. 24, 1996
5557594 Method and apparatus for recording data on recording medium Sep. 17, 1996
5555231 Information recording method, method for reproducing recorded information, and apparatus therefor Sep. 10, 1996
5553047 System for recording digital information in a pulse-length modulation format Sep. 3, 1996
5537379 Optical data storage and retrieval system and method Jul. 16, 1996
5537382 Partial response coding for a multi-level optical recording channel Jul. 16, 1996
5488591 Improved magneto-optical recording apparatus for digital signal information Jan. 30, 1996
5479390 System for recording digital information in a pulse-length modulation format Dec. 26, 1995
5473591 Method for recording and reproducing data on recording mediums Dec. 5, 1995
5467330 Recording method and recording and reproducing apparatus for optical disk Nov. 14, 1995
5459709 System for recording digital information in a pulse-length modulation format Oct. 17, 1995
5414689 Optical information recording/reproducing apparatus using pit edge recording system May. 9, 1995
5383171 Information recording/reproducing device and method for recording/reproducing information on a recording medium using accurate synchronization in a data area in which coded data is stored Jan. 17, 1995
5375116 System for recording digital information in a pulse-length modulation format Dec. 20, 1994
5333126 Information recording method and optical disk apparatus using same Jul. 26, 1994
5331620 Recording method and recording apparatus for optical disk Jul. 19, 1994
5321680 System for recording digital information in a pulse-length modulation format Jun. 14, 1994
5276674 Optical recording medium having thin protective layer and two-dimensionally aligned code words and recording/reproducing apparatus employing the same Jan. 4, 1994
5229986 Data recording/reproducing device Jul. 20, 1993
5172359 System for recording digital data Dec. 15, 1992
5084852 System for recording digital information in a pulse-length modulation format Jan. 28, 1992
5048003 Method of and device for recording information, record carrier, device for reading the recorded information, and encoding and decoding circuit for use in the recording and read device Sep. 10, 1991
5038335 Hierarchically multiplexed optical recording system for storage of digital data Aug. 6, 1991
5019919 Apparatus for recording and reproducing divided signals of an angle modulated signal May. 28, 1991
5008669 Encoding/decoding system for optical recording/reading Apr. 16, 1991
5003526 System for recording digital information in a pulse-length modulation format Mar. 26, 1991
4962301 Method of reciprocally recording data on card-like record medium for unidirectional reading Oct. 9, 1990
4958338 Hierarchically multiplexed optical recording system for storage of digital data Sep. 18, 1990
4930115 Method of and device for recording information, record carrier, and device for reading the recorded information May. 29, 1990
4858217 Optical disk recording and reproducing device Aug. 15, 1989
4802154 High density codes for optical recording Jan. 31, 1989
4697167 Sync pattern encoding system for data sectors written on a storage medium Sep. 29, 1987
4684921 RLL (1,7) encoder with single state bit Aug. 4, 1987

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