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71. 发明授权

US06191908B1 Thermal asperity compensating method, data reproduction error compensating method, automatic gain control system and magnetic disk unit 失效
标题翻译：热凹凸补偿方法，数据再现误差补偿方法，自动增益控制系统和磁盘单元
公开(公告)号：US06191908B1
公开(公告)日：2001-02-20
申请号：US09106310
申请日：1998-06-29
申请人： Takashi Tachikawa
发明人： Takashi Tachikawa
IPC分类号： G11B502
CPC分类号： G11B20/10009 , G11B5/012
摘要： A magnetic disk unit lowers a possibility to cause data reproduction errors by setting a gain of a variable gain amplifier (VGA) at a predetermined fixed level for a predetermined time when an output from the VGA which amplifies an input signal is changed to a value smaller than an optimum value upon occurrence of a thermal asperity and then restoring a variable gain condition so that an output amplitude automatically has a certain preset value.
摘要翻译：磁盘单元通过将可变增益放大器（VGA）的增益设定在预定的固定电平达预定时间来降低可能性，当放大输入信号的VGA的输出变为更小的值时比发生热凹凸时的最佳值，然后恢复可变增益条件，使得输出幅度自动具有一定的预设值。

72. 发明授权

US06819516B2 WUS (unsafe) detection (kick back sensing) 有权
标题翻译： WUS（不安全）检测（反向感测）
公开(公告)号：US06819516B2
公开(公告)日：2004-11-16
申请号：US09732143
申请日：2000-12-07
申请人： Hiromichi Kuwano , Kaori Ichikawa
发明人： Hiromichi Kuwano , Kaori Ichikawa
IPC分类号： G11B502
CPC分类号： G11B27/36 , G11B5/455 , G11B19/04 , G11B20/18 , G11B2005/0013 , G11B2220/20
摘要： An unsafe detection circuit for detecting a kickback signal including an input circuit for inputting a kickback signal, a circuit for detecting the presence or absence of said kickback signal, and a fault detection circuit to respond to said presence or absence of said kickback signal to provide an indication of a fault.
摘要翻译：一种用于检测反冲信号的不安全检测电路，包括用于输入反冲信号的输入电路，用于检测所述反冲信号的存在或不存在的电路，以及故障检测电路，以响应所述反冲信号的存在或不存在来提供指示故障。

73. 发明授权

US06798598B2 Method for controlling write current to a write head during data write on a hard disk 有权
标题翻译：在硬盘数据写入期间控制对写入头的写入电流的方法
公开(公告)号：US06798598B2
公开(公告)日：2004-09-28
申请号：US10091411
申请日：2002-03-05
申请人： Hiroaki Suzuki , Hideo Asano , Yumi Nagano , Michio Nakajima , Masaomi Ikeda , Masashi Murai
发明人： Hiroaki Suzuki , Hideo Asano , Yumi Nagano , Michio Nakajima , Masaomi Ikeda , Masashi Murai
IPC分类号： G11B502
CPC分类号： G11B5/012 , G11B5/035 , G11B2005/0013
摘要： A method for controlling write current to a write head during data write on a hard disk drive is disclosed. A direct access storage device includes a rotating storage medium in which data are magnetically written, a write head for writing data in the rotating storage medium, and a write current control circuit for changing write current-value settings to be supplied to the write head according to a predetermined elapsed time from the beginning of a write operation.
摘要翻译：公开了一种在硬盘驱动器的数据写入期间控制对写入头的写入电流的方法。直接存取存储装置包括磁数据写入数据的旋转存储介质，用于在旋转存储介质中写入数据的写入头，以及写入电流控制电路，用于根据提供给写入头的写入电流值设定改变到从写入操作开始的预定经过时间。

74. 发明授权

US06785071B2 Disk drive writer waveform induced precompensation 有权
标题翻译：磁盘驱动器写入器波形引起预补偿
公开(公告)号：US06785071B2
公开(公告)日：2004-08-31
申请号：US10115303
申请日：2002-04-03
申请人： Carl F. Elliott , John D. Leighton
发明人： Carl F. Elliott , John D. Leighton
IPC分类号： G11B502
CPC分类号： G11B20/10194 , G11B5/012 , G11B5/035 , G11B5/09 , G11B20/10009 , G11B2005/001
摘要： A disk driver writer precompensation system modulates the write current waveform based on a pattern of data bits magnetically recorded on a medium in order to adjust the timing of magnetic transitions recorded on the medium.
摘要翻译：磁盘驱动器写入器预补偿系统基于磁记录在介质上的数据位的模式来调制写入电流波形，以便调节记录在介质上的磁转变的定时。

75. 发明授权

US06771471B2 Rotary head drum apparatus and magnetic recording and playback apparatus 失效
标题翻译：旋转磁鼓设备和磁记录播放装置
公开(公告)号：US06771471B2
公开(公告)日：2004-08-03
申请号：US10057559
申请日：2002-01-25
申请人： Motoyoshi Fujimori , Ichiro Hashimoto , Akira Itou , Hiroyuki Kaneko
发明人： Motoyoshi Fujimori , Ichiro Hashimoto , Akira Itou , Hiroyuki Kaneko
IPC分类号： G11B502
CPC分类号： G11B5/584
摘要： A rotary head drum apparatus and a magnetic recording and playback apparatus wherein crosstalk between a writing signal and a playback signal transferred using independent rotary transformers is reduced and facility of assembly and rework of a magnetic head are improved. A flat disk-type rotary transformer for a writing signal and another flat disk-type rotary transformer for a playback signal are disposed adjacently in a stationary drum, and a shield plate for preventing crosstalk is interposed between the two rotary transformers. Alternatively, one of a writing rotary transformer and a playback rotary transformer is formed from a flat disk-type rotary transformer while the other is formed from a cylindrical rotary transformer, and the flat disk-type rotary transformer is disposed on a bottom portion of a stationary drum while the cylindrical rotary transformer is disposed on an outer circumference of a center boss of the stationary drum.
摘要翻译：一种旋转磁头鼓装置和磁记录和重放装置，其中，使用独立旋转变压器传送的写入信号和重放信号之间的串扰减小，并且提高了磁头的装配和返工的可能性。用于写入信号的平盘式旋转变压器和用于重放信号的另一平盘式旋转变压器相邻设置在固定的滚筒中，并且用于防止串扰的屏蔽板插入在两个旋转变压器之间。替代地，一种书写旋转变压器和回放式旋转变压器由平盘式旋转变压器形成，而另一个由圆柱形旋转变压器形成，平盘式旋转变压器设置在而圆柱形旋转变压器设置在固定鼓的中心凸台的外圆周上。

76. 发明授权

US06771445B1 Assembly and method suitable for thermo-magnetic writing/reading of data 失效
标题翻译：适用于热磁写/读数据的装配和方法
公开(公告)号：US06771445B1
公开(公告)日：2004-08-03
申请号：US09540726
申请日：2000-03-31
申请人： Hendrik F. Hamann , Yves Martin , Hemantha Kumar Wickramasinghe
发明人： Hendrik F. Hamann , Yves Martin , Hemantha Kumar Wickramasinghe
IPC分类号： G11B502
CPC分类号： B82Y10/00 , G11B5/00 , G11B5/09 , G11B9/1409 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： An assembly for writing/reading high-density data on a recording media as a series of tags comprising a magnetic information bit pattern. The assembly includes an antenna positionable near the media; a source of electromagnetic radiation for producing an incident wave at least a portion of which can be coupled to the antenna; and, a means for coordinating a mutual positioning of the source of the electromagnetic radiation and the antenna, so that the antenna can generate a highly localized electromagnetic field in the vicinity of the media for inducing localized heating of the media. The assembly is capable of writing/erasing said high-density data by using an information signal for modulating the localized field generated in the vicinity of the media; the assembly is capable of reading by coordinating the mutual positioning of the antenna and the media.
摘要翻译：一种用于在记录介质上写入/读取高密度数据的组件，作为包括磁信息位模式的一系列标签。组件包括可在介质附近定位的天线; 用于产生入射波的电磁辐射源，其至少一部分可耦合到天线; 以及用于协调电磁辐射源和天线的相互定位的装置，使得天线可以在介质附近产生高度局部化的电磁场，用于引起介质的局部加热。该组件能够通过使用用于调制在介质附近产生的局部场的信息信号来写/擦除所述高密度数据; 该组件能够通过协调天线和介质的相互定位来读取。

77. 发明授权

US06735505B2 Aircraft flight and voice data recorder system and method 有权
标题翻译：飞机飞行和语音数据记录系统及方法
公开(公告)号：US06735505B2
公开(公告)日：2004-05-11
申请号：US10052202
申请日：2002-01-17
申请人： Howard B. Levine
发明人： Howard B. Levine
IPC分类号： G11B502
CPC分类号： G07C5/085 , B64D45/00 , B64D2045/0065 , G07C5/008 , H04B7/18506
摘要： An onboard portion of the system is located on an aircraft for monitoring a plurality of flight parameters and detecting a predetermined exceedence indicative of a potential problem. With regard to flight data, predetermined exceedences could include abnormal attitude, control surface actuator failure, low hydraulic fluid pressure, low fuel, near stall speed, excessive engine RPM, engine failure, cabin pressure loss, and so forth. With regard to voice data, predetermined exceedences could include excessive decibel levels, excessive static, overly long periods of silence, and other audible conditions indicative of cockpit intrusion. Flight data representative of the flight parameters is transmitted via RF signals upon the detection of the predetermined exceedence. A remote portion of the system receives the transmitted RF signals carrying the flight data and records the flight data for analysis.
摘要翻译：系统的车载部分位于飞行器上用于监视多个飞行参数并检测指示潜在问题的预定超限。对于飞行数据，预定的超越可能包括异常姿态，控制面致动器故障，低液压流体压力，低燃料，近失速速度，过大的发动机转速，发动机故障，机舱压力损失等。关于语音数据，预定的超越可能包括过高的分贝级别，过多的静态，超长时间的沉默以及其他表示驾驶舱入侵的可听状况。在检测到预定的超限之后，通过RF信号来传送代表飞行参数的飞行数据。系统的远程部分接收携带飞行数据的发射的RF信号，并记录飞行数据进行分析。

78. 发明授权

US06731446B2 METHOD FOR FORMING A MAGNETIC PATTERN IN A MAGNETIC RECORDING MEDIUM, METHOD FOR PRODUCING A MAGNETIC RECORDING MEDIUM, MAGNETIC PATTERN FORMING DEVICE, MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING DEVICE 失效
标题翻译：用于形成磁记录介质中的磁性图案的方法，用于制造磁记录介质的磁性图案形成装置，磁记录介质和磁记录装置
公开(公告)号：US06731446B2
公开(公告)日：2004-05-04
申请号：US09773610
申请日：2001-02-02
申请人： Hiroyuki Ikeda , Youji Arita , Masahiro Kawashima , Takeshi Kuriwada , Yuzo Seo
发明人： Hiroyuki Ikeda , Youji Arita , Masahiro Kawashima , Takeshi Kuriwada , Yuzo Seo
IPC分类号： G11B502
CPC分类号： G11B5/86 , G11B5/59633 , G11B5/59688 , G11B5/74 , G11B5/82 , G11B13/045 , G11B2005/0021
摘要： A method and device for forming a magnetic pattern in a magnetic recording medium, a magnetic recording medium formed thereby and a magnetic recording device that includes a magnetic recording medium formed by this method and/or device. The magnetic recording medium has a magnetic layer, a protective layer, and a lubricant layer formed on a substrate in this order, and the magnetic pattern is formed by locally heating the magnetic layer and applying an external magnetic field to the magnetic layer.
摘要翻译：一种用于在磁记录介质中形成磁图案的方法和装置，由此形成的磁记录介质和包括由该方法和/或装置形成的磁记录介质的磁记录装置。磁记录介质依次形成在基板上的磁性层，保护层和润滑层，通过局部加热磁性层和向磁性层施加外部磁场而形成磁性图案。

79. 发明授权

US06710959B1 Input pole compensation for a disk drive read head 有权
标题翻译：磁盘驱动器读头的输入极补偿
公开(公告)号：US06710959B1
公开(公告)日：2004-03-23
申请号：US09512847
申请日：2000-02-25
申请人： Echere Iroaga
发明人： Echere Iroaga
IPC分类号： G11B502
CPC分类号： G11B5/022 , G11B5/012 , G11B5/02 , G11B5/035 , G11B5/09 , G11B2005/0013
摘要： An adjustable impedance boosting circuit for a magneto-resistive head in a gain stage beyond the input gain stage. The boosting circuit compensates for a frequency pole of the head leads by introducing a zero in proportion to the resistance of the magneto-resistive element and with selectable circuit parameters to further adjust the pole compensation. The invention includes selectively adjusting the sensitivity of the pole compensation to changes in the resistance of the head, selectively adjusting the peak compensation, and adjusting the frequency of the compensating zero.
摘要翻译：用于增益级超导输入增益级的磁阻头的可调阻抗升压电路。升压电路通过与磁阻元件的电阻成比例地引入零，并具有可选择的电路参数来进一步调整极点补偿，来补偿磁头引线的频率极点。本发明包括选择性地调节磁极补偿对磁头电阻变化的灵敏度，选择性地调节峰值补偿以及调整补偿零点的频率。

80. 发明授权

US06697305B2 Magnetic head with sectioned magnetic field regulator 失效
标题翻译：磁头与分段磁场调节器
公开(公告)号：US06697305B2
公开(公告)日：2004-02-24
申请号：US10085391
申请日：2002-02-28
申请人： Hiroyasu Yoshikawa
发明人： Hiroyasu Yoshikawa
IPC分类号： G11B502
CPC分类号： G11B11/10554 , G11B5/127 , G11B5/1278 , G11B5/17 , G11B11/10534 , G11B11/1058
摘要： A magnetic head includes a multi-layer coil for generating a magnetic field, and a flat, magnetic field regulator spaced from the coil along the central axis of the coil. The field regulator is formed with a center hole for passing disk-illuminating light. The magnetic member consists of a plurality of sections that are electrically insulated and arranged around the central axis of the coil.
摘要翻译：磁头包括用于产生磁场的多层线圈和沿着线圈的中心轴线与线圈间隔开的平坦的磁场调节器。场调节器形成有用于通过盘照明光的中心孔。磁性构件由围绕线圈的中心轴电绝缘和布置的多个部分组成。

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