DC offset cancel circuit
    71.
    发明授权
    DC offset cancel circuit 有权
    直流偏移消除电路

    公开(公告)号:US06968172B2

    公开(公告)日:2005-11-22

    申请号:US10349106

    申请日:2003-01-23

    申请人: Shinji Saito

    发明人: Shinji Saito

    摘要: This invention is applied to dual mode provided receiver capable of coinciding with both TDMA system and the non-TDMA system so as to provide a DC offset cancel circuit preferable for each communication method having a compact structure. In case where a predetermined time slot is allocated as an offset quantity detection time in the TDMA system, a first feedback loop is activated and corresponding to detection signals corresponding to differential output signals OUT, XOUT by a comparator 2, a detection result is updated in the holding section 3 according to a strobe signal STB and held therein. Output signals from the holding section 3 are fed back to an amplifier 1 through a selection section 5 and a DC offset is cancelled out. In case where the offset quantity is detected successively, a second feedback loop is activated and then, detection signals from the comparator 2 are identified by a filter section 4, and fed back to the amplifier 1 through the selection portion 5, so that the DC offset is cancelled out.

    摘要翻译: 本发明应用于能够与TDMA系统和非TDMA系统兼容的双模式提供的接收机,以便提供对具有紧凑结构的每个通信方法优选的DC偏移消除电路。 在TDMA系统中分配预定时隙作为偏移量检测时间的情况下,第一反馈环路被激活,并且对应于由比较器2对应于差分输出信号OUT,XOUT的检测信号,检测结果被更新 保持部分3根据选通信号STB并保持在其中。 来自保持部3的输出信号通过选择部5反馈到放大器1,并且DC偏移被抵消。 在连续检测到偏移量的情况下,激活第二反馈环路,然后由滤波器部分4识别来自比较器2的检测信号,并通过选择部分5反馈到放大器1,使DC 补偿被取消。

    Magnetic recording medium
    72.
    发明授权
    Magnetic recording medium 失效
    磁记录介质

    公开(公告)号:US06855394B2

    公开(公告)日:2005-02-15

    申请号:US10178764

    申请日:2002-06-25

    IPC分类号: G11B5/70 G11B5/706 G11B5/708

    摘要: A magnetic recording medium is disclosed, comprising a support having provided thereon a substantially nonmagnetic lower layer by coating a lower layer coating solution comprising a nonmagnetic powder dispersed in a binder and drying, and a layer having a thickness of from 0.01 to 0.15 μm by coating a magnetic layer coating solution comprising a ferromagnetic metal powder or a hexagonal ferrite powder dispersed in a binder, wherein the magnetic layer contains diamond particles having an average particle size of from 1/5 to 2 times the thickness of the magnetic layer in an amount of from 0.1 to 5.0 mass % based on the ferromagnetic metal powder.

    摘要翻译: 公开了一种磁记录介质,其包括通过涂布包含分散在粘合剂中的非磁性粉末的下层涂布溶液和干燥而在其上设置有基本上非磁性的下层的载体,以及通过涂布具有0.01至0.15μm厚度的层 包含分散在粘合剂中的铁磁性金属粉末或六方铁氧体粉末的磁性层涂布液,其中所述磁性层含有平均粒度为磁性层厚度的1/5至2倍的金刚石颗粒,其量为 基于强磁性金属粉末为0.1〜5.0质量%。

    Magnetic recording and reproduction method
    73.
    发明申请
    Magnetic recording and reproduction method 失效
    磁记录和再现方法

    公开(公告)号:US20050013046A1

    公开(公告)日:2005-01-20

    申请号:US10890090

    申请日:2004-07-14

    摘要: A magnetic recording and reproduction method comprising recording or reproducing a track of a rotating magnetic disk by means of a magnetic head, wherein the magnetic disk comprises a support and a magnetic layer containing ferromagnetic powder and a binder; the track has a breadth of 2 μm or less; and a frictional force between the magnetic layer and the magnetic head at innermost peripheral area of a recording region of the magnetic disk is 30 mN or less, a frictional force between the magnetic layer and a magnetic head at outermost peripheral area of a recording region of the magnetic disk is 20 mN or less, and a ratio of the frictional force at the innermost peripheral area to the frictional force at the outermost peripheral area is from 1.0 to 4.0.

    摘要翻译: 一种磁记录和再现方法,包括通过磁头记录或再现旋转磁盘的轨道,其中磁盘包括支撑件和包含铁磁粉末和粘合剂的磁性层; 轨道的宽度为2 mum以下; 并且在磁盘的记录区域的最内周区域处的磁性层和磁头之间的摩擦力为30mN以下,磁性层与记录区域的最外周区域的磁头之间的摩擦力 磁盘为20mN以下,最外围区域的摩擦力与最外周面积的摩擦力的比为1.0〜4.0。

    Magnetic recording medium
    74.
    发明授权
    Magnetic recording medium 有权
    磁记录介质

    公开(公告)号:US06780503B2

    公开(公告)日:2004-08-24

    申请号:US10281947

    申请日:2002-10-29

    IPC分类号: G11B5702

    摘要: A magnetic recording medium comprising: a nonmagnetic support; and at least one magnetic layer comprising a ferromagnetic hexagonal ferrite powder and a binder, wherein the magnetic layer comprises diamond particles having an average particle size of 0.03 to 0.5 &mgr;m in a ratio of 0.1 to 5% by weight to the ferromagnetic hexagonal ferrite powder, the ferrite hexagonal ferrite powder has an average tabular diameter of 5 to 40 nm, and the binder is at least one of: (i) a binder comprising from 0.2 to 0.7 meq/g of at least one polar group selected from —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2 and —COOM, wherein M represents a hydrogen atom, an alkali metal or ammonium, and (ii) a binder comprising from 0.5 to 5 meq/g of at least one polar group selected from —CONR1R2, —NR1R2 and —N+R1R2R3 wherein R1, R2 and R3 each independently represents a hydrogen atom or an alkyl group.

    摘要翻译: 一种磁记录介质,包括:非磁性载体; 以及包含铁磁性六角铁氧体粉末和粘合剂的至少一个磁性层,其中所述磁性层包含平均粒度为0.03-0.5μm,相对于铁磁性六角铁氧体粉末为0.1-5wt%的金刚石颗粒, 所述铁氧体六角铁氧体粉末的平均片状直径为5〜40nm,所述粘合剂为以下中的至少一种:(i)包含0.2〜0.7meq / g的至少一种选自-SO 3 M, OSO3M,-PO(OM)2,-OPO(OM)2和-COOM,其中M表示氢原子,碱金属或铵,和(ii)包含0.5-5meq / g至少一种 选自-CONR1R2,-NR1R2和-N + R1R2R3的极性基团,其中R1,R2和R3各自独立地表示氢原子或烷基。

    Method for producing magnetic recording medium and magnetic recording medium
    75.
    发明授权
    Method for producing magnetic recording medium and magnetic recording medium 有权
    磁记录介质和磁记录介质的制造方法

    公开(公告)号:US06677036B2

    公开(公告)日:2004-01-13

    申请号:US10281996

    申请日:2002-10-29

    IPC分类号: B05D512

    摘要: A method for producing a magnetic recording medium comprising: dispersing at least a binder and a ferromagnetic hexagonal ferrite powder to prepare a magnetic coating; and applying the magnetic coating to provide at least one magnetic layer, wherein the binder is at least one of: (a) a binder comprising 0.2 to 0.7 meq/g of at least one polar group selected from —SO3M, —OSO3M, —PO(OM)2, —OPO(OM)2 and —COOM wherein M represents a hydrogen atom, an alkali metal or ammonium; and (b) a binder comprising 0.5 to 5 meq/g of at least one polar group selected from —CONR1R2, —NR1R2 and —N+R1R2R3 wherein R1, R2 and R3 each independently represents a hydrogen atom or an alkyl group, and the ferromagnetic hexagonal ferrite powder has an average tabular diameter of from 10 to 40 nm and a water content of from 0.3 to 3% by weight.

    摘要翻译: 一种制造磁记录介质的方法,包括:分散至少一种粘结剂和一种铁磁性六角铁氧体粉末以制备磁性涂层; 以及施加所述磁性涂层以提供至少一个磁性层,其中所述粘合剂是以下至少一种:(a)包含0.2至0.7meq / g的至少一种选自-SO 3 M,-OSO 3 M,-PO (OM)2,-OPO(OM)2和-COOM,其中M表示氢原子,碱金属或铵; 和(b)包含0.5-5meq / g至少一种选自-CONR1R2,-NR1R2和-N + R1R2R3的极性基团的粘合剂,其中R1,R2和R3各自独立地表示氢原子或烷基, 铁磁六方铁氧体粉末的平均片状直径为10〜40nm,水含量为0.3〜3重量%。

    Apparatus for controlling ignition timing of engine

    公开(公告)号:US06668798B2

    公开(公告)日:2003-12-30

    申请号:US10040640

    申请日:2002-01-09

    IPC分类号: F02P515

    摘要: An apparatus for controlling an ignition timing of an engine is capable of reducing or preventing occurrences of backfires. The apparatus includes a no-load deceleration state detector for detecting that an engine is in a no-load deceleration state. An engine speed detector detects an engine speed. An advanced timing setting unit sets an advanced ignition timing (retard amount) in situations where the occurrence of backfires are likely, such as during the no-load deceleration state. A converter 105 determines an ignition angle &thgr;ig on the basis of an output pulse of a pulse generator and an advance amount provided by the advanced ignition timing setting unit.

    Magnetic disk comprising a magnetic layer having specific projections distributions
    77.
    发明授权
    Magnetic disk comprising a magnetic layer having specific projections distributions 失效
    磁盘包括具有特定投影分布的磁性层

    公开(公告)号:US06632548B2

    公开(公告)日:2003-10-14

    申请号:US09897492

    申请日:2001-07-03

    IPC分类号: G11B5703

    摘要: A magnetic disk for high-density recording is provided, wherein a substantially non-magnetic lower layer is formed on a support and a magnetic layer containing ferromagnetic powder dispersed in a binder is formed on the lower layer. The magnetic layer has a thickness of 0.02 to 0.5 &mgr;m, and on the surface thereof at least 1×104 projections standing at least 20 nm high and at most 1×103 projections standing at least 70 nm high per mm2 measured by an atomic force microscope.

    摘要翻译: 提供一种用于高密度记录的磁盘,其中在支撑体上形成基本上非磁性的下层,并且在下层上形成包含分散在粘合剂中的铁磁性粉末的磁性层。 磁性层的厚度为0.02-0.5μm,在其表面上至少具有至少20nm高和至多1x10 3μm的至少1×10 4个/ SP> 通过原子力显微镜测量的每mm <2 至少高达70nm的投影

    Rubber fixing roller
    78.
    发明授权
    Rubber fixing roller 有权
    橡胶定影辊

    公开(公告)号:US06408160B1

    公开(公告)日:2002-06-18

    申请号:US09734585

    申请日:2000-12-13

    IPC分类号: G03G1520

    CPC分类号: G03G15/2053

    摘要: A rubber fixing-roller includes a core and a non-foamed rubber elastic layer provided on the periphery of the core, the elastic layer including a peripheral surface having a predetermined outside diameter, the elastic layer being prepared in a predetermined heat capacity per unit volume by mixing a filler having low density and low specific heat.

    摘要翻译: 橡胶定影辊包括芯和设置在芯的周边上的非发泡橡胶弹性层,弹性层包括具有预定外径的周面,弹性层以每单位体积预定的热容量制备 通过混合具有低密度和低比热的填料。

    Semiconductor device with improved inter-element isolation
    79.
    发明授权
    Semiconductor device with improved inter-element isolation 失效
    具有改进的元件间隔离的半导体器件

    公开(公告)号:US06225676B1

    公开(公告)日:2001-05-01

    申请号:US09252930

    申请日:1999-02-19

    IPC分类号: H01L2986

    摘要: A semiconductor device having multiple circuit elements capable of performing different functions and that operate at a high frequency includes island regions on which the circuit elements are located and isolation regions that surround the island regions and thus, the circuit elements. The island regions electrically separate the circuit elements from each other. A capacitor is connected between a substrate portion of the semiconductor device and ground. The isolation regions include a conductive region with a conductivity type opposite to the conductivity type of the substrate portion, such that a parasitic capacitor is formed between the substrate portion and the conductive region. The parasitic capacitor prevents signal leakage between the circuit elements and the island regions.

    摘要翻译: 具有能够执行不同功能并且以高频率工作的多个电路元件的半导体器件包括电路元件所在的岛状区域和围绕岛状区域以及因此电路元件的隔离区域。 岛区域将电路元件彼此电分离。 电容器连接在半导体器件的衬底部分和接地之间。 隔离区域包括具有与衬底部分的导电类型相反的导电类型的导电区域,使得在衬底部分和导电区域之间形成寄生电容器。 寄生电容器防止电路元件和岛区域之间的信号泄漏。