公开(公告)号：EP1547064B1

公开(公告)日：2018-09-12

申请号：EP03752384.2

申请日：2003-09-19

Applicant: Collision Communications, Inc.

Inventor： LEARNED, Rachel, E. ,  MACLEOD, Robert, B.

IPC: G11B20/22 ,  G11B20/12 ,  G11B20/10 ,  G11B7/14 ,  G11B5/48 ,  G11B5/012 ,  G11B11/105 ,  G11B5/49 ,  H04L25/03

CPC classification number: G11B7/14 ,  G11B5/012 ,  G11B5/488 ,  G11B5/4886 ,  G11B5/4969 ,  G11B5/4976 ,  G11B5/4992 ,  G11B11/10515 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1217 ,  G11B20/22 ,  G11B2020/1238 ,  G11B2020/1288 ,  G11B2020/1292 ,  H04B1/71057 ,  H04B7/0851 ,  H04L1/06 ,  H04L1/20 ,  H04L1/24 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03203 ,  H04L25/03331

Abstract: A processing scheme for digital storage media using multi-user detection to separate tracks of data or remove interference from neighboring tracks. In one embodiment, data is written on a plurality of tracks positioned sufficiently close together so that multiple tracks are detected simultaneously by the read access sensor. Upon scanning the surface for data, the read element simultaneously receives the data signals from a plurality of tracks. Joint detection signal processing resolves the interference and data bits from the multiple sensed tracks, enabling closer packing of data with minimal guard space.

公开(公告)号：EP2917914A1

公开(公告)日：2015-09-16

申请号：EP13792218.3

申请日：2013-11-06

Applicant: Oracle International Corporation

Inventor： MADISON, Carl ,  OSTWALD, Timothy C.

IPC: G11B7/24073 ,  G11B7/007

CPC classification number: G11B7/24073 ,  G11B7/0031 ,  G11B7/00736 ,  G11B7/14 ,  G11B7/24009

Abstract: A data storage and retrieval system includes a head carriage unit having multiple heads disposed at a working surface and a tape drive unit configured to move the tape past the working surface of the head carriage unit in a direction substantially parallel to a tape length. The heads are configured to write primary data tracks to or read primary data tracks from the tape as the head carriage unit rotates and the tape moves past the working surface, the primary data tracks having an accurate shape and extending substantially along a tape width. The heads are also configured to write at least one secondary data track to or read at least one secondary data track from the tape as the head carriage unit rotates and the tape moves past the working surface, the at least one secondary data track extending substantially along the tape length.

公开(公告)号：EP2917913A1

公开(公告)日：2015-09-16

申请号：EP13792214.2

申请日：2013-11-06

Applicant: Oracle International Corporation

Inventor： MADISON, Carl ,  OSTWALD, Timothy C.

IPC: G11B7/0045 ,  G11B7/006

CPC classification number: G11B7/0055 ,  G11B7/0031 ,  G11B7/00458 ,  G11B7/006 ,  G11B7/14

Abstract: A data storage and retrieval system includes a head carriage unit adapted for rotational motion and having multiple heads disposed at a working surface, the head carriage unit adapted for rotational motion. The system also includes a tape drive unit configured to move a tape media past the working surface of the head carriage unit, the tape media having a width approximately equal to a width of the working surface of the head carriage unit. As the head carriage unit rotates and the tape moves past the working surface, a first head is configured to write a data track on the tape and a second head is configured to thereafter read the data track, where data read by the second head is for use in verifying data erasure.

公开(公告)号：EP2455937B1

公开(公告)日：2015-07-08

申请号：EP11188822.8

申请日：2011-11-11

Applicant: General Electric Company

Inventor： Wang, Xuefeng ,  Bonanni, Pierino Gianni ,  Shi, Xiaolei ,  Ren, Zhiyuan ,  Xia, Hua ,  Ostroverkhov, Victor Petrovich ,  Wang, Xinghua

IPC: G11B7/14 ,  G11B7/08

CPC classification number: G11B7/14 ,  G11B7/00781 ,  G11B7/083

公开(公告)号：EP2880656A1

公开(公告)日：2015-06-10

申请号：EP13750205.0

申请日：2013-08-01

Applicant: Oracle International Corporation

Inventor： MAHNAD, Faramarz

IPC: G11B7/003 ,  G11B7/14 ,  G11B19/04

CPC classification number: G11B21/103 ,  G11B7/003 ,  G11B7/14

Abstract: In an optical tape drive having optical heads for writing data in tracks on an optical tape, each track having an off-track threshold, a system and method are disclosed for off-track write prevention. The system includes multiple actuators, each actuator configured to control a position of an associated optical heads. The system also includes a controller configured to determine a position of each of the optical heads relative to an associated track on the optical tape and to prevent, in response to an event causing an optical heads to have a position outside the off-track threshold of the associated track, only that optical head from writing data to the optical tape and to buffer a stream of data for that optical head for later processing.

公开(公告)号：EP2375412B1

公开(公告)日：2014-07-23

申请号：EP11159672.2

申请日：2011-03-24

Applicant: General Electric Company

Inventor： Shi, Xiaolei ,  Hershey, John Erik ,  Ross, John Anderson Fergus ,  Lawrence, Brian Lee ,  Wang, Xuefeng ,  Ostroverkhov, Victor Petrovich ,  Solhjell, Erik ,  Jahren, Rolf

IPC: G11B7/14 ,  G11B7/08 ,  G11B7/0065

CPC classification number: G11B7/14 ,  G03H1/0248 ,  G11B7/0065 ,  G11B7/083

公开(公告)号：EP2204801B1

公开(公告)日：2012-04-04

申请号：EP07807636.1

申请日：2007-09-20

Applicant: Pioneer Corporation

Inventor： SATO, Makoto ,  OGASAWARA, Masakazu

IPC: G11B7/14 ,  G11B7/004 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24

CPC classification number: G11B7/14 ,  G11B2007/0013

Abstract: A method for record regeneration records and regenerates information by forming record marks on record layers onto a recording medium including a plurality of record layers laminated in the direction of membrane thickness and a track layer having a plurality of tracks supporting tracking servo information. The method comprises a focusing step for focusing a servo light beam onto a guide layer and for focusing a main light beam group consisting of a plurality of main light beams adjacent to one another alternatively onto any one of the record layers via a common objective lens, a tracking step for positioning an objective lens such that a servo light beam is tracking to the track, and a record regeneration step which records or regenerates information by means of a main light beam group while performing the focusing step and the tracking step. A spacing between a trajectory group formed on one of the record layers by a main light beam group when a servo light beam is tracking to either one of the tracks adjacent to one another and a trajectory group formed on one of the record layers by a main light beam group when a servo light beam is tracking to the other track is greater than an average trajectory pitch within the trajectory group.

公开(公告)号：EP1801623B1

公开(公告)日：2011-09-21

申请号：EP06014934.1

申请日：2006-07-18

Applicant: Daewoo Electronics Corporation

Inventor： Kim, Kun-Yul

IPC: G02B5/18 ,  G02B6/00 ,  G11B7/0065 ,  G11B7/135

CPC classification number: G11B7/14 ,  G02B5/32 ,  G03H1/265 ,  G03H2001/0473 ,  G11B7/0065 ,  G11B7/08547 ,  G11B7/128 ,  G11B7/1353

公开(公告)号：EP2054888B1

公开(公告)日：2011-07-27

申请号：EP07792690.5

申请日：2007-08-13

Applicant: Ricoh Company, Ltd.

Inventor： OGATA, Tetsuya

IPC: G11B7/135

CPC classification number: G11B7/005 ,  G11B7/0943 ,  G11B7/131 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1367 ,  G11B7/1369 ,  G11B7/1381 ,  G11B7/14 ,  G11B2007/0013

Abstract: An optical system for efficiently extracting plural signal beams from a bundle of rays reflected from a multilayer optical disk.

公开(公告)号：EP2204801A1

公开(公告)日：2010-07-07

申请号：EP07807636.1

申请日：2007-09-20

Applicant: Pioneer Corporation

Inventor： SATO, Makoto ,  OGASAWARA, Masakazu

IPC: G11B7/14 ,  G11B7/004 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24

CPC classification number: G11B7/14 ,  G11B2007/0013

Abstract: A recording and reproducing method for recording and/or reproducing information from a record carrier that comprises a plurality of recording layers layered in its film thickness direction and a guide layer having a plurality of tracks carrying tracking servo information, wherein a record mark is formed on each recording layer of the record carrier. The method comprises: a focusing step of converging a servo light beam onto the guide layer as well as selectively converging a main light beam group onto one of the recording layers through a common objective lens, wherein the main light beam group comprises a plurality of main light beams neighboring each other; a tracking step of performing a positioning control of the objective lens so that the servo light beam is tracking on one of the tracks; and a recording and/or reproducing step of performing recording and/or reproducing information with the main light beam group while performing the focusing step and the tracking step. When the servo light beam traces on one of the tracks neighboring each other, one trace group is composed of the main light beam group on the one of the recording layers, wherein, when the servo light beam traces on the other of the tracks neighboring each other, the other trace group is composed of the main light beam group on the one of the recording layers, wherein an interval between the one trace group and the other trace group is larger than an average trace pitch within the trace group.

Abstract translation: 一种记录和用于记录和/或从记录载体中再现信息并再现方法包括在该膜的厚度方向，并具有承载跟踪伺服信息磁道的多个引导层分层记录层上的多个，worin记录标记形成在 记录载体的各个记录层。 该方法包括：会聚伺服光束到导向层，以及通过共用物镜选择性地会聚主光束组到记录层中的一个，worin主光束组的聚焦步骤包括主一个多元化 lightbeams周边海誓山盟; 执行物镜的定位控制的跟踪步骤所以做了伺服光束在轨道上的一个跟踪; 以及记录和/或执行记录和/或再现用的主光束组的信息，同时执行所述聚焦步骤和跟踪步骤的再现步骤。 当在轨道上的一个伺服光束迹线邻接海誓山盟，一个迹组由主光束组的所述一个记录层，worin的，当在其他轨道邻接每个伺服光束的痕迹 其他，其它微量组由在记录层中的一个的主光束组，在一组并且对该其他痕量痕量组之间间隔worin大于在迹组内平均轨线间距更大。