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公开(公告)号：EP0785547A3
公开(公告)日：1998-08-05
申请号：EP96308511
申请日：1996-11-26
Applicant: IBM
Inventor： GREEN CHARLES OTIS JR , KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
IPC: G11B7/004 , G11B7/007 , G11B19/04 , G11B19/12 , G11B20/00 , G11B20/18 , G11B27/00 , G11B27/034 , G11B27/10 , G11B27/30 , G11B27/32
CPC classification number: G11B7/00736 , G11B19/04 , G11B19/12 , G11B20/00086 , G11B20/18 , G11B27/002 , G11B27/034 , G11B27/105 , G11B27/3027 , G11B27/329 , G11B2220/216 , G11B2220/218 , G11B2220/2525 , G11B2220/2545 , G11B2220/2562 , G11B2220/41
Abstract: A unique and permanent identifier is provided for removable media. The identifier is preferably recorded in a previously unused or reserved portion of the media and can be generated from a combination of the originating drive serial number and the current date and time with a random number concatenated thereto. When a piece of media is loaded into a drive, the drive examines the reserved area for the presence of an identifier. If not present. the drive generates and records an identifier before performing whatever disk access operations have been requested. If the identifier is present, the drive is prevented from overwriting the identifier with a new one and the disk access operations are performed immediately. Once the media is provided with its identifier, the media, and any errors associated with the media, can be tracked throughout its life.
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公开(公告)号：JPH10241285A
公开(公告)日：1998-09-11
申请号：JP2805598
申请日：1998-02-10
Applicant: IBM
Inventor： KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME , WINARSKI DANIEL JAMES
Abstract: PROBLEM TO BE SOLVED: To protect the recording of an optical disk from the underline of the input data to a buffer by providing an underline detector responding to pre-buffered data and an embedded provider responding to an underline display in order to supply embedded signals for formation data in units of sector. SOLUTION: In an optical disk drive 10 for storing data in units of sector of consecutive sequences and a read/write electronic equipment 11, an input from a host having a possibility that it is affected by an underline is supplied to a digital input 26 on a line 25. A data stream coded into EFM by an encoder 30 including a buffer is supplied to a laser recording and reading circuit 36 in order to be recorded on an optical disk 40. At this time, whether data equivalent to one sector exist in the buffer of the encoder 30 or not is judged and prescribed processing process is executed according to the result.
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公开(公告)号：JP2001199505A
公开(公告)日：2001-07-24
申请号：JP2000331289
申请日：2000-10-30
Applicant: IBM
Inventor： KAMAL EMIL DIMITRI , KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
Abstract: PROBLEM TO BE SOLVED: To improve effectiveness of a library having plural of pickers. SOLUTION: The plural highly functional pickers in the automatic data memory library are disclosed, the library discriminates a starting/ending position of a received moving job, a library control device arranging the moving job in a job queue is provided. A picker processor receives information describing moving information of each of the present moving job of the other picker through a communication link from the other picker. At completion time of the moving job, the picker, communicating with the library control device, selects the moving job avoiding interference with movement of the other picker. Movement of the selected moving job is determined so as to avoid interference with a stored moving profile of the other picker. The moving profile is transmitted to the other picker through the communication link, the moving job is executed in accordance with the moving profile. Further, the moving information containing the present position and a vector is transmitted.
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4.发明专利
公开(公告)号：GB2359658B
公开(公告)日：2003-09-24
申请号：GB0026269
申请日：2000-10-27
Applicant: IBM
Inventor： DIMITRI KAMAL EMILE , KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
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公开(公告)号：DE69331615D1
公开(公告)日：2002-04-04
申请号：DE69331615
申请日：1993-09-10
Applicant: IBM
Inventor： KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
Abstract: A data file having a plurality of data blocks is divided into one or more transfer units of data blocks. Before data storage, each transfer unit of data blocks is subjected to its own data compression cycle to create a group of compressed data blocks. The size of the data transfer unit, in bytes, is selected to be facile for addressing and retrieving individual recorded groups of compressed data blocks while providing good channel utilization and compression efficiency. Also the data-transfer unit size is selected in part based upon data storage efficiency, i.e. the storage of the compressed data should fill as many addressable data storage areas as possible. Upon recording each group of compressed data bytes, an entry is made into a file directory for enabling addressing the recorded compressed data blocks.
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Patent Agency Ranking
公开(公告)号：GB2359658A
公开(公告)日：2001-08-29
申请号：GB0026269
申请日：2000-10-27
Applicant: IBM
Inventor： DIMITRI KAMAL EMILE , KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
Abstract: Multiple intelligent pickers 26 for an automated data storage library, the library having a library controller 22 which identifies the start and end locations of the received move jobs, and places the move jobs in a job queue. The picker processor receives information over a communication link 33 from other pickers describing movement information for the current move job of each of the other pickers. Upon completion of a move job, the picker communicates with the library controller, selecting a move job which avoids interference with the movement of the other pickers. The movement for the selected move job is determined so as to avoid interference with the stored movement profiles of the other pickers. A movement profile may be communicated to the other pickers over the communication link, and the move job is conducted according to the movement profile. Alternatively, movement information comprising the current location and vector are communicated.
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公开(公告)号：DE69326267T2
公开(公告)日：2000-04-20
申请号：DE69326267
申请日：1993-02-03
Applicant: IBM
IPC: G11B7/004 , G11B7/00 , G11B7/0055 , G11B7/007 , G11B7/24 , G11B7/26 , G11B7/28 , G11B20/12 , G11B27/10
Abstract: The present invention relates to a data storage device comprising a circular disc (30), a data storage medium on at least one surface of the disc, a spiral track extending within the storage medium about the axis of the disc, and a plurality of data storage sectors formed on the track. According to the invention the storage device is characterised in that the storage medium is formed with a reference mark (100) extending radially from the axis of the disc, and the data storage sectors are arranged in groups extending along the spiral track, one end of each group of sectors being located adjacent to one of the points of intersection of the reference mark with the spiral track.
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公开(公告)号：ES2090251T3
公开(公告)日：1996-10-16
申请号：ES91308436
申请日：1991-09-16
Applicant: IBM
Inventor： KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME , TAYEFEH MOROVAT
IPC: G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/007 , G11B7/013 , G11B11/10 , G11B11/105 , G11B20/12
Abstract: The present invention relates to a re-writable data storage member (10) comprising a plurality of spaced apart addressable data storage areas (12) for recording and storing data and a plurality of non-data storage areas (15) interposed between adjacent ones of the addressable data storage areas for recording signals not representing data, the storage member being adapted to be scanned in a direction over the storage areas. According to the invention the storage member is characterised in that one of the addressable data storage areas contains first machine readable indicia indicating that the storage member contains data which is not to be changed from any original recording of the data, another of the addressable data storage areas contains second machine readable indicia indicating whether or not the storage member has been erased of data in its entirety, and each of the non-data storage areas contains third machine readable indicia indicating whether or not one of the respective adjacent addressable data storage areas can be written into. The invention also relates to a data storage system comprising a re-writable data storage member as above and to a method of operating such a data storage system.
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公开(公告)号：CA2046705C
公开(公告)日：1995-09-26
申请号：CA2046705
申请日：1991-07-10
Applicant: IBM
Inventor： KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME , TAYEFEH MOROVAT
IPC: G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/007 , G11B7/013 , G11B11/10 , G11B11/105 , G11B20/12 , G11B27/19
Abstract: Rewriteable media, such as magnetooptic record members or disk has its recording controlled such that the recording is certifiable as meeting write once read many characteristics. Controls are introduced for the entire disk for indicating that the rewriteable disk is to be used for certified or vault writing, at least in some radial zones of the disk. Recording or writing operations are limited to those addressable areas on the certifiable rewriteable medium that have not been previously written. Each of the addressable areas of the medium, in a disk termed, sectors, have a precursor portion called a control area which indicates the status of the sector and is used for preventing overwriting or erasure as well as controlling.
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公开(公告)号：AU610666B2
公开(公告)日：1991-05-23
申请号：AU2651188
申请日：1988-12-02
Applicant: IBM
Inventor： KULAKOWSKI JOHN EDWARD , MEANS RODNEY JEROME
Abstract: A large capacity data storing disk includes a volume table of contents (VTOC) which identifies allocated ones of data storage tracks and identification of the data contents therein, indications of unallocated data storage track and an indication of which of the data storage tracks on the large capacity disk surface are unformatted. The indications may also include indications of unallocated "erased" tracks that do not contain data residuals from previous recordings. Those unallocated tracks having such erased condition in a count key data record format (CKD) require a home address record on each of the formatted tracks. The home address record may include indications of rotational position of defects to be skipped over during the recording and readback operations. A specific embodiment of the invention using a magnetooptic record medium is described.
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