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公开(公告)号：US06307701B1
公开(公告)日：2001-10-23
申请号：US09176079
申请日：1998-10-20
申请人： Kelly J. Beavers , Michael A. Blatchley , David L. Detro , Christopher J. Turner , Thomas E. Zaczek
发明人： Kelly J. Beavers , Michael A. Blatchley , David L. Detro , Christopher J. Turner , Thomas E. Zaczek
IPC分类号： G11B1546
CPC分类号： G11B5/0086 , G11B5/00878 , G11B15/04 , G11B15/06 , G11B15/093 , G11B15/1875 , G11B15/43 , G11B15/4673
摘要： A method and apparatus for varying track recording speed to maximize host-to-tape data transfer rates is presented. Variable data transfer rates of host systems and networks are accommodated by continually adjusting the tape speed to match the tape drive to the host's actual transfer rate. The speed of the tape is adjusted according to both the level of data present in the tape drive data buffer and whether the current mode of the drive is write mode or read mode. In the preferred embodiment, when the tape speed is accelerated or decelerated while writing a number of data track pairs to tape, a predetermined number of dummy track pairs are first written to tape at the current speed. On the next write head phase after the speed is increased or decreased as appropriate while the read heads are over the track, a predetermined number of dummy track pairs followed by more data track pairs are written to the tape at the new speed.
摘要翻译： 提出了一种改变磁道记录速度以最大化主机到磁带数据传输速率的方法和装置。 主机系统和网络的可变数据传输速率通过不断调整磁带速度来匹配磁带驱动器与主机的实际传输速率。 根据磁带驱动器数据缓冲器中存在的数据级别以及驱动器的当前模式是写入模式还是读取模式来调整磁带的速度。 在优选实施例中，当在将多个数据轨道对写入磁带的同时加速或减速磁带速度时，首先将预定数量的虚拟磁道对以当前速度写入磁带。 在读取磁头在磁道上方的速度增加或减小之后的下一个写入磁头相位上，预定数量的虚拟磁道对后跟更多的数据磁道对被以新的速度写入磁带。
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公开(公告)号：US06459540B1
公开(公告)日：2002-10-01
申请号：US09946414
申请日：2001-09-04
申请人： Kelly J. Beavers , Michael A. Blatchley , David L. Detro , Christopher J. Turner , Thomas E. Zaczek
发明人： Kelly J. Beavers , Michael A. Blatchley , David L. Detro , Christopher J. Turner , Thomas E. Zaczek
IPC分类号： G11B1546
CPC分类号： G11B5/0086 , G11B5/00878 , G11B15/04 , G11B15/06 , G11B15/093 , G11B15/1875 , G11B15/43 , G11B15/4673
摘要： A method and apparatus for varying track recording speed to maximize host-to-tape data transfer rates is presented. Variable data transfer rates of host systems and networks are accommodated by continually adjusting the tape speed to match the tape drive to the host's actual transfer rate. The speed of the tape is adjusted according to both the level of data present in the tape drive data buffer and whether the current mode of the drive is write mode or read mode. In the preferred embodiment, when the tape speed is accelerated or decelerated while writing a number of data track pairs to tape, a predetermined number of dummy track pairs are first written to tape at the current speed. On the next write head phase after the speed is increased or decreased as appropriate while the read heads are over the track, a predetermined number of dummy track pairs followed by more data track pairs are written to the tape at the new speed.
摘要翻译： 提出了一种改变磁道记录速度以最大化主机到磁带数据传输速率的方法和装置。 主机系统和网络的可变数据传输速率通过不断调整磁带速度来匹配磁带驱动器与主机的实际传输速率。 根据磁带驱动器数据缓冲器中存在的数据级别以及驱动器的当前模式是写入模式还是读取模式来调整磁带的速度。 在优选实施例中，当在将多个数据轨道对写入磁带的同时加速或减速磁带速度时，首先将预定数量的虚拟磁道对以当前速度写入磁带。 在读取磁头在磁道上方的速度增加或减小之后的下一个写入磁头相位上，预定数量的虚拟磁道对后跟更多的数据磁道对被以新的速度写入磁带。
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公开(公告)号：US07782721B2
公开(公告)日：2010-08-24
申请号：US09950398
申请日：2001-09-10
IPC分类号： G11B7/095
CPC分类号： G11B7/0945 , G11B2007/0006
摘要： A multi-zone calibration system is disclosed. The multi-zone calibration system calibrates the operating parameters of an optical disk drive over a plurality of zones over an optical media. The optical media, in addition, can have writeable and premastered portions. The operating parameters can be calibrated for each of the media types in each of the zones. Additionally, the operating parameters can be calibrated for each type of operation (e.g., read or write) in each zone.
摘要翻译： 公开了一种多区域校准系统。 多区域校准系统通过光学介质校准多个区域上的光盘驱动器的操作参数。 此外，光学介质可以具有可写入和预处理的部分。 可以为每个区域中的每种介质类型校准操作参数。 此外，可以针对每个区域中的每种类型的操作（例如，读取或写入）校准操作参数。
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4.发明授权Calibration storage methods for a digital focus and tracking servo system with calibration 有权用于校准的数字对焦和跟踪伺服系统的校准存储方法公开(公告)号：US07196979B2
公开(公告)日：2007-03-27
申请号：US09950360
申请日：2001-09-10
IPC分类号： G11B7/00
CPC分类号： G11B7/0945
摘要： A method of storing calibrated optical parameters is presented. In some embodiments, calibrated optical parameters are stored in place of stored parameters. In some embodiments, averages between the calibrated operating parameters and stored optical parameters are stored. In other embodiments, the stored optical parameters are allowed to vary only by a maximum amount. In some embodiments, if the calibrated parameters vary by more than threshold values, then the calibrated parameters are not stored.
摘要翻译： 介绍了存储校准光学参数的方法。 在一些实施例中，存储校准的光学参数来代替存储的参数。 在一些实施例中，存储校准的操作参数和存储的光学参数之间的平均值。 在其他实施例中，允许所存储的光学参数仅改变最大量。 在一些实施例中，如果校准参数变化超过阈值，则校准参数不被存储。
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公开(公告)号：US07079459B2
公开(公告)日：2006-07-18
申请号：US09951475
申请日：2001-09-10
IPC分类号： G11B15/18
CPC分类号： G11B7/0948 , G11B7/08505 , G11B7/0938 , G11B19/20 , G11B19/28
摘要： A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The present invention includes starting the operation of a motor including windings and a rotor; placing the motor in a first operational state; driving the motor from the first operational state to a second operational state; and sensing a variation in an electrical waveform induced by driving of the motor to determine a cycle period from which the speed of the motor can be determined.
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公开(公告)号：US06898170B2
公开(公告)日：2005-05-24
申请号：US09951325
申请日：2001-09-10
IPC分类号： G11B7/085 , G11B7/09 , G11B7/095 , G11B7/12 , G11B7/13 , G11B7/135 , G11B19/247 , G11B19/28 , G11B7/00
CPC分类号： G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/247 , G11B19/28
摘要： A system and method for controlling operation of a motor system that addresses the design challenges for the small form factor optical disk system. The control system can be operable to obtain digital feedback from a spin motor. The present invention includes detecting data representing a position on an optical medium and determining a detection rate; comparing the detection rate to a reference rate to provide an error rate; generating an output command in response to the error rate to provide a drive output which commands a voltage applied to a spin motor to adjust the spin speed of said spin motor.
摘要翻译： 一种用于控制电机系统的操作的系统和方法，其解决了小尺寸光盘系统的设计挑战。 该控制系统可操作以从旋转马达获得数字反馈。 本发明包括检测表示光学介质上的位置并确定检测率的数据; 将检测率与参考速率进行比较以提供错误率; 产生响应于错误率的输出命令，以提供驱动输出，该驱动输出命令施加到旋转马达的电压来调节所述旋转马达的旋转速度。
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公开(公告)号：US06364234B1
公开(公告)日：2002-04-02
申请号：US09522531
申请日：2000-03-10
IPC分类号： G11B1546
摘要： A capstan controlled tape transport mechanism that includes a tape tension controller for preventing tape slack in the tape path is presented. The transport mechanism includes a capstan, a spinnable reel, and a reel motor which controls the speed of revolution of the reel in response to a reel motor voltage/current. The spinning of the reel results in the winding of the tape around the reel to generate a tape stack whose radius varies according to the amount of tape wound around the reel hub. Each revolution of the reel generates a fixed number of reel tach pulses per reel revolution. The spinnable capstan controls the transport of tape across the capstan in the direction of the reel, generating a fixed number of capstan tach pulses per capstan revolution. The tape tension controller calculates a target count representing the expected number of capstan tach pulses per reel tach pulse based on the current tape stack radius, and monitors the received number of capstan tachs per received reel tach at the current tape stack radius. If the received number of capstan tachs exceeds the target count, the tape tension controller increases the reel motor voltage/current to cause the reel to spin faster to take up any existing slack in the tape path. Once the tape tension controller starts to receive reel tach within the target number of capstan tachs for the given tape stack radius, any existing adjustment voltage is ramped back down to the nominal reel motor voltage/current.
摘要翻译： 提供了一种主导控制的磁带传送机构，其包括用于防止磁带路径中的磁带松弛的磁带张力控制器。 传送机构包括主导轴，可旋转卷轴和卷轴马达，其响应于卷轴马达电压/电流来控制卷轴的转速。 卷轴的旋转导致磁带缠绕在卷轴上以产生磁带叠层，磁带堆的半径根据卷绕在磁带盘毂上的磁带的数量而变化。 每卷卷轴的每一圈都会产生一个固定数量的卷轴旋转每卷轴旋转。 可旋转的主导轴控制带子沿卷轴的方向跨过绞盘的传送，产生固定数量的绞盘旋转。 磁带张力控制器基于当前的磁带堆叠半径来计算表示每个卷轴脉冲的绞盘脉冲的预期数量的目标计数，并且以当前磁带堆叠半径监视每个接收到的磁带盘的接收的主导轴数量。 如果接收到的绞盘数量超过目标计数，则磁带张力控制器增加卷轴电机电压/电流，使卷轴旋转更快以占据磁带路径中的任何现有松弛。 一旦磁带张力控制器开始在给定磁带堆叠半径的目标数量的主导轴tachs内接收卷轴，则任何现有的调整电压都会斜降回到标称卷轴电机电压/电流。
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8.发明授权公开(公告)号：US07095685B2
公开(公告)日：2006-08-22
申请号：US09951332
申请日：2001-09-10
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/28
摘要： A disc drive includes a tracking actuator, and determines when the tracking actuator is positioned off a formatted portion of optical media in the disc drive. The optical media includes a pitted premastered area that cannot be overwritten and a grooved user-writeable area that can be overwritten. Tracking control effort is monitored to determine when the tracking actuator is in the off-format condition and whether tracking good or tracking bad is detected within a predetermined time period. An absolute value of the tracking control effort is generated and the absolute value of the tracking control effort is filtered. An off-format condition is indicated if the filtered value of the tracking control effort is not within a predetermined threshold value.
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公开(公告)号：US07054242B2
公开(公告)日：2006-05-30
申请号：US09951940
申请日：2001-09-10
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/28
摘要： A system for controlling focus in an optical disc drive for optical media with a premastered area that cannot be overwritten and a user-writeable area that can be overwritten includes instructions for turning focus on and off; and for acquiring focus on the optical media in response to a command to acquire focus. The actuator arm is moved according to a sinusoidal ramp function to prevent exciting resonances in the actuator arm. The amount of push-away force used while moving the actuator arm can be adjusted to avoid overshoot. The integrity of a focus error signal is determined and an attempt to re-acquire focus is made if the focus error signal indicates a bad focus status. The system turns focus off when at least one of the following conditions are met: (1) current state is a ramp focus acquire state and the maximum ramp position was reached; (2) current state is a focus push retry state and best push away value is greater than or equal to a predetermined fraction of a nominal push away value; or (3) a focus problem develops while in a focus active state.
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10.发明授权System and method for controlling interrupts in a control system for an optical disc drive 失效用于控制光盘驱动器的控制系统中的中断的系统和方法公开(公告)号：US06963524B2
公开(公告)日：2005-11-08
申请号：US09951947
申请日：2001-09-10
CPC分类号： G11B7/1356 , G11B7/08505 , G11B7/08523 , G11B7/08529 , G11B7/08541 , G11B7/08576 , G11B7/09 , G11B7/0901 , G11B7/0912 , G11B7/0938 , G11B7/094 , G11B7/0941 , G11B7/0943 , G11B7/0946 , G11B7/0948 , G11B7/0953 , G11B7/0956 , G11B7/123 , G11B7/131 , G11B19/28
摘要： A control system for an optical disc for optical media with a premastered area that cannot be overwritten and a user-writeable area that can be overwritten, comprises a first processor operable to communicate with a second processor via a status register. The first processor sequences and monitors functions performed in the second processor and the second processor issues an interrupt when an error condition is detected in the second processor. The first processor detects the interrupt, and disables detecting further interrupts until the interrupt is serviced. Servicing the interrupt includes recording the error state and changing focus and tracking parameters based on the error condition detected.
摘要翻译： 一种用于光学介质的光盘的控制系统，其具有不能被覆盖的预制区域和可被覆盖的用户可写入区域，包括可操作以经由状态寄存器与第二处理器通信的第一处理器。 当在第二处理器中检测到错误条件时，在第二处理器和第二处理器中执行的第一处理器序列和监视功能发出中断。 第一个处理器检测中断，并禁止检测进一步的中断，直到中断服务。 维护中断包括根据检测到的错误状况记录错误状态和改变焦点和跟踪参数。
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