Semiconductor device
    3.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US07643261B2

    公开(公告)日:2010-01-05

    申请号:US11616494

    申请日:2006-12-27

    CPC classification number: H01L27/0285

    Abstract: There is provided a semiconductor device capable of supplying an analog input signal higher than or equal to an operating power supply voltage. An electrostatic discharge protection circuit corresponding to the analog input signal is provided for an external terminal that is supplied with an analog input signal generated with a first power supply voltage. A voltage divider resistor divides the analog input signal passing through the electrostatic discharge protection circuit into a voltage corresponding to a second power supply voltage lower that the first power supply voltage. An input circuit operating on the second power supply voltage receives the analog input signal divided by the voltage divider resistor to form an internal analog signal. There are provided first and second unidirectional elements. The first unidirectional element passes current from the input circuit's input terminal to the second power supply voltage. The second unidirectional element passes current from a circuit ground potential to a first circuit's input terminal.

    Abstract translation: 提供了能够提供高于或等于工作电源电压的模拟输入信号的半导体器件。 为被提供有以第一电源电压产生的模拟输入信号的外部端子提供对应于模拟输入信号的静电放电保护电路。 分压电阻器将通过静电放电保护电路的模拟输入信号分压成与第一电源电压相对应的第二电源电压的电压。 在第二电源电压上工作的输入电路接收由分压电阻分压的模拟输入信号,以形成内部模拟信号。 提供了第一和第二单向元件。 第一单向元件将电流从输入电路的输入端子传递到第二电源电压。 第二单向元件将电流从电路接地电位传递到第一电路的输入端。

    Magneto-optical recording system using recording waveform having a
plurality of power levels providing high recording density
    5.
    发明授权
    Magneto-optical recording system using recording waveform having a plurality of power levels providing high recording density 失效
    使用具有提供高记录密度的多个功率电平的记录波形的磁光记录系统

    公开(公告)号:US5463600A

    公开(公告)日:1995-10-31

    申请号:US225315

    申请日:1994-04-08

    CPC classification number: G11B11/10506 G11B11/10595 G11C13/06

    Abstract: A magneto-optical disk system includes a magneto-optical disk and a disk drive. The magneto-optical disk drives provides a function of controlling the shape of a recorded domain by using a short wavelength laser beam and a test recording and a function of recording a using a pulse train. The magneto-optical disk has a laminated layer structure capable of obtaining a high S/N ratio and stabilizing a heat conduction. The magneto-optical disk drive with the recorded domain shape control function using a short wavelength laser beam and a test recording and with the pulse train recording record function is organically coupled with the magneto-optical disk having the laminated layer structure with a stabilized heat conduction to make the disk and the disk drive have an integrity therebetween, providing a magneto-optical disk having a recording capacity four times as large as the first generation magneto-optical disk system.

    Abstract translation: 磁光盘系统包括磁光盘和磁盘驱动器。 磁光盘驱动器通过使用短波长激光束和测试记录以及使用脉冲串记录功能来提供控制记录域的形状的功能。 磁光盘具有能够获得高S / N比并稳定热传导的叠层结构。 具有使用短波长激光束和测试记录并具有脉冲串记录记录功能的记录域形状控制功能的磁光盘驱动器与具有稳定的热传导的层叠层结构的磁光盘有机耦合 为了使盘和盘驱动器之间具有完整性,提供具有与第一代磁光盘系统相同的四倍的记录容量的磁光盘。

    Method of and apparatus for correcting edge interval of pit in optical
recording/read-out apparatus
    6.
    发明授权
    Method of and apparatus for correcting edge interval of pit in optical recording/read-out apparatus 失效
    用于校正光学记录/读出装置中的凹坑的边缘间隔的方法和装置

    公开(公告)号:US5418770A

    公开(公告)日:1995-05-23

    申请号:US764922

    申请日:1991-09-24

    Abstract: A pit edge interval correcting method in an optical recording/read-out apparatus wherein as data items to be used to correct pit edge intervals for cancellation of a thermal interference from a previously recorded pattern, there is formed a table representing relationships between kinds of record patterns and edge shift quantities of the patterns in a read-out signal. Edge shift quantities of particular patterns with respect to a unitary variation quantity of a recording medium surface temperature (an ambient temperature of an optical disk) and edge shift quantities of particular patterns with respect to a unitary variation quantity of laser power are beforehand acquired as correction control data. Before actual data are recorded, the particular patterns are again recorded on a medium and read out therefrom. If an edge shift occurs in a read-out signal, a variation quantity of the recording medium surface temperature and a variation quantity of the laser power are separately obtained based on a quantity of the edge shift occurring and the correction control data collected in advance. Using each variation quantity, the value set to the laser power is altered and/or the data in the table are updated to correct the actual data.

    Abstract translation: 光记录/读出装置中的凹坑边缘间隔校正方法,其中作为用于校正凹坑边缘间隔的数据项,用于从先前记录的图案中消除热干扰,形成表示记录种类之间关系的表 读出信号中的图案的图案和边缘移位量。 相对于记录介质表面温度(光盘的环境温度)的单位变化量和特定图案的边缘偏移量相对于激光功率的单位变化量的特定图案的边缘偏移量预先获取为校正 控制数据。 在记录实际数据之前,将特定图案再次记录在介质上并从中读出。 如果在读出信号中发生边沿位移,则根据发生的边沿位移的量和预先收集的校正控制数据分别获得记录介质表面温度的变化量和激光功率的变化量。 使用每个变化量,更改设置为激光功率的值和/或更新表中的数据以更正实际数据。

    Developer composition for lithographic printing plates
    7.
    发明授权
    Developer composition for lithographic printing plates 失效
    平版印刷版的显影剂组合物

    公开(公告)号:US4863835A

    公开(公告)日:1989-09-05

    申请号:US439876

    申请日:1982-11-08

    CPC classification number: G03F7/32

    Abstract: A developer composition for a lithographic printing plate provided with a coated layer composed of a photosensitive polymer having in the main chain thereof groups of formula (I) ##STR1## wherein X and Y independently represent hydrogen, halogen, cyano or nitro and n is an integer of 1 or 2, comprising:(A) benzyl alcohol,(B) tetrahydrofurfuryl alcohol and(C) at least one acid selected from the group consisting of a mineral acid, an organic carboxylic acid and an organic sulfonic acid.

    Abstract translation: 一种用于平版印刷版的显影剂组合物,其具有由其主链中具有式(I)的基团的光敏聚合物组成的涂层,其中X和Y独立地表示氢,卤素,氰基或硝基, n为1或2的整数,包括:(A)苄醇,(B)四氢糠醇和(C)至少一种选自无机酸,有机羧酸和有机磺酸的酸。

    Manufacturing method for magnetic disk drive
    9.
    发明申请
    Manufacturing method for magnetic disk drive 审中-公开
    磁盘驱动器的制造方法

    公开(公告)号:US20080192379A1

    公开(公告)日:2008-08-14

    申请号:US12011284

    申请日:2008-01-24

    Abstract: Embodiments of the present invention provide a process that monitors a magnetic playback signal while gradually increasing an electricity supply amount for a heater to thereby determine contact between a magnetic head slider and a magnetic disk medium. According to one embodiment, after components for configuring a magnetic recording/playback portion are assembled into a housing, magnetic information is played back on a specific track of a magnetic disk medium by using a playback element while gradually increasing an electricity supply amount for a heater of a magnetic head slider. An amplitude of a playback signal is measured at a plurality of portions along a circumferential direction of the track. Contact between the magnetic head slider and the magnetic disk medium is detected in accordance with an increase in variation in the measured amplitude. Then, a value obtained by subtracting an predetermined value of an electricity amount from an electricity amount in the event of detection of the contact is stored (set) as an appropriate electricity amount for the magnetic head slider into a storage portion.

    Abstract translation: 本发明的实施例提供了一种监视磁回放信号的过程,同时逐渐增加用于加热器的电力供应量,从而确定磁头滑块和磁盘介质之间的接触。 根据一个实施例,在用于配置磁记录/重放部分的组件被组装到外壳中之后,通过使用回放元件在磁盘介质的特定轨道上回放磁信息,同时逐渐增加加热器的供电量 的磁头滑块。 沿着轨道的圆周方向的多个部分测量重放信号的幅度。 根据测量幅度的变化的增加来检测磁头滑块和磁盘介质之间的接触。 然后,通过从检测到接触的电量的电量中减去电量的预定值而获得的值作为用于磁头滑块的适当电量被存储(设置)到存储部分中。

    Magnetic disk drive having a function for using a thermal protrusion amount for flying height management and an inspection device having such a function
    10.
    发明授权
    Magnetic disk drive having a function for using a thermal protrusion amount for flying height management and an inspection device having such a function 失效
    具有使用用于飞行高度管理的热突起量的功能的磁盘驱动器和具有这种功能的检查装置

    公开(公告)号:US07330324B2

    公开(公告)日:2008-02-12

    申请号:US10890073

    申请日:2004-07-12

    CPC classification number: G11B5/6005 G11B5/3136 G11B5/607

    Abstract: A write head's material having a great thermal expansion coefficient expands due to Joule heat resulting from a write current and a temperature rise dependent on high-frequency core loss, thereby causing the head's flying surface to protrude toward a magnetic disk. This phenomenon is called TPR (thermal protrusion). It is essential that the flying height be accurately determined and managed in consideration of TPR. A magnetic disk drive for actual use or a magnetic disk drive that is in a testing process but similar to the one for actual use is used to measure TPR amount changes resulting from a write operation, store the resulting measured data in a memory or on the magnetic disk, and perform flying height management with the stored measured data. Further, flying height management is performed as needed in conjunction with a SMART function. The present invention makes it possible to perform high-reliability flying height management.

    Abstract translation: 具有大的热膨胀系数的写头材料由于写入电流引起的焦耳热和依赖于高频磁芯损耗的温度升高而扩大,从而使磁头的飞行表面朝向磁盘突出。 这种现象称为TPR(热突起)。 考虑到TPR,飞行高度必须准确确定和管​​理至关重要。 用于实际使用的磁盘驱动器或处于测试过程中但类似于实际使用的磁盘驱动器用于测量由写入操作导致的TPR量变化,将得到的测量数据存储在存储器中或在 磁盘,并使用存储的测量数据执行飞行高度管理。 此外,根据需要结合SMART功能执行飞行高度管理。 本发明能够进行高可靠性的飞行高度管理。

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