公开(公告)号：US5526329A

公开(公告)日：1996-06-11

申请号：US381617

申请日：1995-01-30

申请人： John E. Bish ,  David E. Call ,  Glen A. Jaquette ,  Judson A. McDowell ,  Arturo A. Mojica ,  Lawrence D. Tipton

发明人： John E. Bish ,  David E. Call ,  Glen A. Jaquette ,  Judson A. McDowell ,  Arturo A. Mojica ,  Lawrence D. Tipton

IPC分类号： G11B7/004 ,  G11B7/00

CPC分类号： G11B7/004

摘要： The present invention provides a method and an apparatus to accurately and consistently distinguish blank sectors from written sectors on optical media despite drive and media variations. A readback envelope threshold is established each time optical media is mounted into an optical drive. In one embodiment, the gain of readback amplifiers are set to a first level, the optical head seeks to and reads a sector or set of sectors on the optical disk known to have information recorded thereon and a first readback envelope generated. The gain of the readback preamplifier is then set to a second level, the optical head seeks to and reads another sector or set of sectors known to have information recorded thereon and a second readback envelope generated. The readback threshold is calculated from the amplitudes of the first and second envelopes. Once the threshold has been calculated for a disk, the drive can scan for a blank sector by comparing the amplitude of the sector's readback envelope with the threshold: if the amplitude is less than the threshold, and no other written format feature is readily indicated the sector can be classified as being blank and it is safe to write to the sector.

摘要翻译： 本发明提供了一种方法和装置，即使驱动器和介质变化，也可准确且一致地区分光学介质上的空白扇区与写入扇区。 每当将光学介质安装到光学驱动器中时，建立回读包络阈值。 在一个实施例中，回读放大器的增益被设置为第一电平，光头寻找并读取光盘上已知具有其上记录的信息的扇区或一组扇区，并产生第一回读包络。 然后将回读前置放大器的增益设置为第二电平，光头寻找并读取已知具有记录信息的另一个扇区或一组扇区，并产生第二个回读包络。 从第一和第二信封的振幅计算回读阈值。 一旦已经为磁盘计算了阈值，驱动器可以通过将扇区的回读包络的幅度与阈值进行比较来扫描空白扇区：如果幅度小于阈值，并且不容易指出其他写入格式特征 部门可以被分类为空白，并且可以安全地写入该部门。

公开(公告)号：US5430702A

公开(公告)日：1995-07-04

申请号：US197525

申请日：1994-02-16

申请人： John E. Bish ,  David E. Call ,  Glen A. Jaquette ,  Judson A. McDowell ,  Arturo A. Mojica ,  Lawrence D. Tipton

发明人： John E. Bish ,  David E. Call ,  Glen A. Jaquette ,  Judson A. McDowell ,  Arturo A. Mojica ,  Lawrence D. Tipton

IPC分类号： G11B7/004 ,  G11B7/00

CPC分类号： G11B7/004

摘要： The present invention provides a method and an apparatus to accurately and consistently distinguish blank sectors from written sectors on optical media despite drive and media variations. A readback envelope threshold is established each time optical media is mounted into an optical drive. In one embodiment, the gain of readback amplifiers are set to a first level, the optical head seeks to and reads a sector or set of sectors on the optical disk known to have information recorded thereon and a first readback envelope generated. The gain off the readback preamplifier is then set to a second level, the optical head seeks to and reads another sector or set of sectors known to have information recorded thereon and a second readback envelope generated. The readback threshold is calculated from the amplitudes of the first and second envelopes. Once the threshold has been calculated for a disk, the drive can scan for a blank sector by comparing the amplitude of the sector's readback envelope with the threshold: if the amplitude is less than the threshold and no other written format feature is readily indicated, the sector can be classified as being blank and it is safe to write to the sector.

摘要翻译： 本发明提供了一种方法和装置，即使驱动器和介质变化，也可准确且一致地区分光学介质上的空白扇区与写入扇区。 每当将光学介质安装到光学驱动器中时，建立回读包络阈值。 在一个实施例中，回读放大器的增益被设置为第一电平，光头寻找并读取光盘上已知具有其上记录的信息的扇区或一组扇区，并产生第一回读包络。 然后将回读前置放大器的增益设置为第二级，光头寻求并读取已知具有记录在其上的信息的另一扇区或一组扇区，并产生第二回读包络。 从第一和第二信封的振幅计算回读阈值。 一旦为磁盘计算了阈值，驱动器可以通过将扇区的回读包络的幅度与阈值进行比较来扫描空白扇区：如果幅度小于阈值，并且不容易指出其他写入格式特征， 部门可以被分类为空白，并且可以安全地写入该部门。

公开(公告)号：US5602814A

公开(公告)日：1997-02-11

申请号：US319179

申请日：1994-10-06

申请人： Glen A. Jaquette ,  Arturo A. Mojica

发明人： Glen A. Jaquette ,  Arturo A. Mojica

IPC分类号： G11B7/0045 ,  G11B7/007 ,  G11B7/125 ,  G11B20/10 ,  G11B20/12 ,  G11B20/18 ,  G11B27/36 ,  G11B3/90

CPC分类号： G11B7/126 ,  G11B20/182 ,  G11B27/36 ,  G11B7/0045 ,  G11B7/00745 ,  G11B20/10009 ,  G11B20/1217 ,  G11B7/00451

摘要： A write-once read-many (WORM) optical disk recorder automatically calibrates its laser to emit a laser beam of a desired power level. While writing data to the WORM disk, a laser test signal is written to a laser checking area termed Automatic Laser Power Correction (ALPC) field. If the emitted laser test signal has a power level outside an acceptable power level window, then inappropriate laser power is indicated. Then, in an error recovery procedure (ERP) the laser power is calibrated in the data sector to be written to using short spaced-apart laser test signals. After successful calibration, data are written to the sector. The test signals appear as burst errors that can be corrected by a suitable error correction code. If such calibration is not successful then a write calibrate sector, WCS, is created and used for an extensive automatic calibration. In the WCS both laser power level is calibrated. The calibration result information is written to WCS for later use. A WCS may be created by command from a controller or attaching host for calibrating the laser and its control circuits in a WORM disk device. The WCS can also be written as a part of an ERP initiated by an unsuccessful write operation in one or more target sectors. Such initiation is based upon a determination that an inappropriate write power level may have been used in the attempted data writing.

摘要翻译： 一次写入许可（WORM）光盘记录器自动校准其激光以发射具有所需功率电平的激光束。 在将数据写入WORM磁盘时，将激光测试信号写入激光检查区域，称为自动激光功率校正（ALPC）字段。 如果发射的激光测试信号具有超出可接受功率电平窗口的功率电平，则指示不适当的激光功率。 然后，在错误恢复过程（ERP）中，激光功率在数据扇区中被校准，以被写入使用短间隔激光测试信号。 校准成功后，将数据写入扇区。 测试信号显示为可以通过适当的纠错码校正的突发错误。 如果这样的校准不成功，则写入校准扇区WCS被创建并用于广泛的自动校准。 在WCS中，激光功率电平被校准。 校准结果信息写入WCS供以后使用。 WCS可以通过来自控制器或附加主机的命令来创建，以在WORM磁盘设备中校准激光器及其控制电路。 WCS也可以作为由一个或多个目标扇区中不成功的写入操作启动的ERP的一部分。 这种启动是基于在尝试的数据写入中可能已经使用不适当的写入功率电平的确定。

公开(公告)号：US5293565A

公开(公告)日：1994-03-08

申请号：US831026

申请日：1992-02-04

申请人： Glen A. Jaquette ,  John E. Kulakowski ,  Judson A. McDowell ,  Rodney J. Means

发明人： Glen A. Jaquette ,  John E. Kulakowski ,  Judson A. McDowell ,  Rodney J. Means

IPC分类号： G11B7/00 ,  G11B7/004 ,  G11B7/0055 ,  G11B7/007 ,  G11B7/24 ,  G11B7/26 ,  G11B7/28 ,  G11B20/12 ,  G11B27/10 ,  G11B5/09

CPC分类号： G11B7/0079 ,  G11B20/1258 ,  G11B27/105 ,  G11B7/28 ,  G11B2020/10916 ,  G11B2020/1257

摘要： Data-storing disks, preferably each disk having a single spiral track, have addressable tracks that are independent of the length of disk or spiral track revolutions. Each revolution may contain a non-integral number of addressable tracks and sectors. An optical disk is used to describe the invention. The circumferential location of the tracks and sectors precess circumferentially. A plurality of radially disposed revolution bands each contain a fixed number of the revolutions an increasing number of the addressable tracks in the radially outer more ones of the bands. It is preferred that the number of bands be 2.sup.n, where n is an integer. Each band is divided into a plurality of revolution groups, each group having a fixed number of revolutions. Each group in a band has a like number of the addressable tracks. A so-called anchor sector has one end anchored to a reference circumferential position on the disk. Each revolution group begins with an anchor sector, all other sectors in the group are positioned circumferentially with respect to the anchor sector. Addressable track seeking, alternate embodiments and fabrication of a disk are described.

摘要翻译： 优选地，具有单个螺旋轨道的每个盘的数据存储盘具有独立于盘或螺旋轨道转数的可寻址轨道。 每次革命可能包含非整数个可寻址轨道和扇区。 光盘用于描述本发明。 轨道和扇区的圆周位置周向地进动。 多个径向设置的旋转频带各自包含固定数量的转数，在径向外部的多个频带中的可寻址轨道的数量越来越多。 频带数优选为2n，其中n为整数。 每个频带被分成多个旋转组，每组具有固定的转数。 乐队中的每个组都有相同数量的可寻址轨道。 所谓的锚定部分具有锚定在盘上的参考圆周位置的一端。 每个革命组织都以一个锚定部门开始，该组织中的所有其他部门都相对于锚定部分周向定位。 描述可寻址的寻轨，替代实施例和盘的制造。

公开(公告)号：US5418773A

公开(公告)日：1995-05-23

申请号：US86960

申请日：1993-07-02

申请人： Johannus L. Bakx ,  Paulus G. P. Weijenbergh ,  Karl A. Belser ,  Glen A. Jaquette ,  John E. Kulakowski ,  Judson A. McDowell ,  Rodney J. Means

发明人： Johannus L. Bakx ,  Paulus G. P. Weijenbergh ,  Karl A. Belser ,  Glen A. Jaquette ,  John E. Kulakowski ,  Judson A. McDowell ,  Rodney J. Means

IPC分类号： G11B7/007 ,  G11B11/105 ,  G11B19/02 ,  G11B20/12 ,  G11B21/08 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B19/02 ,  G11B11/10565 ,  G11B20/1258 ,  G11B21/083 ,  G11B27/3027 ,  G11B7/00745

摘要： A record carrier having essentially circular tracks concentrically located around a point of rotation. The record carrier is divided into circular zones each having m tracks, where m is an integer. Each track within a zone is subdivided into n sectors, where n is an integer which is constant per zone and which increases as the zone is more remote from the point of rotation. Each sector including a header portion and a data portion. The header portions in the radial direction in each zone are in line. In each zone the condition of m*n=j*k is satisfied, where is j an integer greater than or equal to 2 and is constant for each zone, and k is an integer.

摘要翻译： 具有基本圆形轨道的记录载体，同心地位于旋转点周围。 记录载体被分成圆形区域，每个区域具有m个轨道，其中m是整数。 区域内的每个轨道被细分为n个扇区，其中n是每个区域恒定的整数，并且随着该区域距离旋转点更远，该扇区增加。 每个扇区包括报头部分和数据部分。 每个区域中的径向的头部部分成直线。 在每个区域中，满足m * n = j * k的条件，其中j是大于或等于2的整数，并且对于每个区域是常数，并且k是整数。

公开(公告)号：US5134602A

公开(公告)日：1992-07-28

申请号：US589135

申请日：1990-09-27

申请人： Francisco A. Baca ,  Alan A. Fennema ,  Reed A. Hancock ,  Glen A. Jaquette ,  Lawrence D. Tipton ,  Daniel J. Winarski

发明人： Francisco A. Baca ,  Alan A. Fennema ,  Reed A. Hancock ,  Glen A. Jaquette ,  Lawrence D. Tipton ,  Daniel J. Winarski

IPC分类号： G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/09 ,  G11B7/125 ,  G11B11/105 ,  G11B19/04 ,  G11B19/28 ,  G11B27/36 ,  G11B33/10

CPC分类号： G11B7/126 ,  G11B11/10595 ,  G11B19/04 ,  G11B19/28 ,  G11B27/36 ,  G11B33/10 ,  G11B7/0037 ,  G11B7/0945

摘要： This disclosure deals with an optical disk recorder/player (drive) of the type that receives a removable disk for signal exchanging operations. Once a disk is inserted into the drive, the rotation of the disk begins a period of accelerating rotational speed called spin up. During spin up, the focus and tracking systems of the drive are calibrated. Once the disks reach a desired operating rotational speed, a menu is provided for determining when to calibrate a laser in the drive for recording operations. Such writing or recording calibration of the laser occurs at different times in accordance with the types of signal processing functions to be performed with respect to the particular disk. Description includes a media library in which a plurality of optical disk drives are controlled in a manner for minimizing access times to any optical disk within the media library.

公开(公告)号：US5602806A

公开(公告)日：1997-02-11

申请号：US495967

申请日：1995-06-28

申请人： Patrick C. Arnett ,  David E. Call ,  Blair I. Finkelstein ,  Glen A. Jaquette ,  Ernesto E. Marinero

发明人： Patrick C. Arnett ,  David E. Call ,  Blair I. Finkelstein ,  Glen A. Jaquette ,  Ernesto E. Marinero

IPC分类号： G11B7/24 ,  G11B7/125 ,  G11B11/10 ,  G11B11/105 ,  G11B20/18 ,  G11B11/00

CPC分类号： G11B7/126 ,  G11B11/10519 ,  G11B11/1053 ,  G11B20/1816 ,  G11B11/10506 ,  G11B11/10595

摘要： A light intensity, direct overwrite, magneto-optical system generates signals such that, during the formation of a recording mark on an optical disk, a laser is driven a) at a pedestal power level, then b) at a quench power level for a first quench period t.sub.1, the quench power level being less than the pedestal power level, then c) at a write power level for a write period t.sub.2 whereby the reference bit becomes oriented in the writing direction, the write power level being greater than the pedestal power level, then d) at the quench power level for a second quench period t.sub.3, and then e) at the pedestal power level until the formation of another recording mark begins. The system is provided with a controller to determine optimal lengths of the quench periods t.sub.1 and t.sub.3, thereby reducing thermal interference between closely spaced recording marks. From sample recording marks, recorded with different quench periods t.sub.1 and t.sub.3, the controller calculates a "quality" value, such as bit error rate, jitter or figure of merit, then determines from the quality value the quench periods t.sub.1 and t.sub.3 which will produce the highest quality recording marks.

摘要翻译： 光强度直接覆盖磁光系统产生信号，使得在光盘上形成记录标记期间，以基座功率电平a）驱动激光器，然后b）以骤冷功率电平为 第一骤冷期t1，骤冷功率水平小于基座功率电平，然后c）在写入周期t2的写入功率电平下，由此参考位在写入方向上变向，写入功率电平大于基座 功率电平，然后d）在骤冷功率电平下进行第二骤冷期t3，然后e）处于基座功率电平，直到另一个记录标记的形成开始。 该系统设置有控制器以确定骤冷时段t1和t3的最佳长度，由此减少紧密间隔的记录标记之间的热干扰。 从不同猝灭期t1和t3记录的样品记录标记中，控制器计算诸如误码率，抖动或品质因数的“质量”值，然后根据质量值确定将产生的淬火周期t1和t3 最高质量的录音标记。

公开(公告)号：US5309461A

公开(公告)日：1994-05-03

申请号：US921894

申请日：1992-07-29

申请人： David E. Call ,  Glen A. Jaquette ,  Julian Lewkowicz

发明人： David E. Call ,  Glen A. Jaquette ,  Julian Lewkowicz

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  H01S5/068 ,  H01S5/0683 ,  H01S3/00

CPC分类号： G11B7/126 ,  H01S5/06825 ,  H01S5/06832

摘要： A drive circuit for a laser which has the capability of eliminating transient conditions when switching a high frequency modulator on or off, and including elements for maintaining desired depth of modulation. These capabilities are included in a circuit that automatically compensates for changing conditions due to temperature, laser characteristics and fluctuations in media reflectivity.

摘要翻译： 一种用于激光器的驱动电路，其具有在开启或关闭高频调制器时消除瞬态条件的能力，并且包括用于维持所需调制深度的元件。 这些功能包括在电路中，自动补偿由于温度，激光特性和介质反射率波动引起的变化条件。

公开(公告)号：US5450383A

公开(公告)日：1995-09-12

申请号：US372466

申请日：1995-01-13

申请人： David E. Call ,  Blair I. Finkelstein ,  Glen A. Jaquette

发明人： David E. Call ,  Blair I. Finkelstein ,  Glen A. Jaquette

IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/125

CPC分类号： G11B7/126

摘要： A write-once optical disk data recorder automatically calibrates a laser during a write data operation and using write pulses focussed to a disk. First, the laser is calibrated using a non-focussed laser beam. Each sector of the disk has a laser checking or test area, such as an automatic laser power correction field (ALPC) of two byte lineal extent. During a first write operation after a power up or disk load, a pulse width modulated (PWM) laser test signal is recorded using a laser power level set using the non-focussed laser beam and an indicated desired recording power level on the disk. The recorded laser test signal is read back. The length of the read back laser test signal is measured. The measured length is then compared with a desired length of the PWM laser test signal that indicates a desired laser power level. That is, as laser recording power levels increase, a resultant recorded signal grows in size. This property is used to measure laser power for calibrating laser operation.

摘要翻译： 一次写入光盘数据记录器在写入数据操作期间并且使用聚焦于磁盘的写入脉冲来自动校准激光器。 首先，使用非聚焦激光束对激光进行校准。 磁盘的每个扇区具有激光检查或测试区域，例如两字节的线性范围的自动激光功率校正场（ALPC）。 在上电或磁盘负载后的第一次写入操作期间，使用使用非聚焦激光束设置的激光功率电平和盘上指示的所需记录功率电平来记录脉宽调制（PWM）激光测试信号。 记录的激光测试信号被读回。 测量回读激光测试信号的长度。 然后将测量的长度与指示期望的激光功率电平的PWM激光测试信号的期望长度进行比较。 也就是说，随着激光记录功率电平的增加，所得到的记录信号的大小增加。 该属性用于测量用于校准激光器操作的激光功率。

公开(公告)号：US09026501B2

公开(公告)日：2015-05-05

申请号：US13476129

申请日：2012-05-21

申请人： Shinobu Fujihara ,  Diana J. Hellman ,  Glen A. Jaquette

发明人： Shinobu Fujihara ,  Diana J. Hellman ,  Glen A. Jaquette

IPC分类号： G06F17/30 ,  G11B27/10 ,  G11B27/11

CPC分类号： G06F3/0604 ,  G06F3/0643 ,  G06F3/0688 ,  G06F17/30174 ,  G06F17/30218 ,  G11B27/107 ,  G11B27/11 ,  G11B2220/655 ,  G11B2220/956

摘要： Method, system, and computer program product embodiments for recording data on a contactless integrated circuit (IC) memory associated with a data storage cartridge are provided. In one exemplary embodiment, an index of a plurality of files to be recorded on a storage media of the data storage cartridge is parsed with a table of contents (TOC) profile file to build a table of contents (TOC) specific to an owning application of the plurality of files. The TOC is written to the contactless IC memory.

摘要翻译： 提供了用于在与数据存储盒相关联的非接触集成电路（IC）存储器上记录数据的方法，系统和计算机程序产品实施例。 在一个示例性实施例中，将要记录在数据存储盒的存储介质上的多个文件的索引用内容表（TOC）简档文件解析，以构建特定于所有者应用的内容表（TOC） 的多个文件。 TOC被写入非接触式IC存储器。