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1. 发明授权

US08914715B2 Soft decision value generation circuit to reduce calculation amounts and hardware scale 有权
标题翻译：软判决值生成电路减少计算量和硬件规模
公开(公告)号：US08914715B2
公开(公告)日：2014-12-16
申请号：US13879177
申请日：2011-11-04
申请人： Hiroshi Nishimoto , Akira Kurita
发明人： Hiroshi Nishimoto , Akira Kurita
IPC分类号： H03M13/00 , H03M13/45 , H04L27/227 , G06F11/10 , H04L25/03 , H03M13/25 , H04L25/06 , H04L27/06
CPC分类号： G06F11/10 , H03M13/255 , H04L25/03318 , H04L25/067 , H04L27/2273
摘要： A soft decision value generation circuit capable of reducing amount of calculation and hardware scale for generating a soft decision value. The soft decision value generation circuit includes: a phase rotation unit rotating phases of received symbols after coherent detection; addition units calculating, by using the phase-rotated received symbols, absolute values of soft decision values for soft decision value candidates restricted in advance; minimum value selection units selecting minimum values out of the absolute values of the soft decision values; sign reflection units reflecting, based on the phases of the received symbols after the phase rotation, sign information to the minimum values; and soft decision value correction units multiplying outputs of the sign reflection units by a coefficient depending on a noise variance value and an amplitude value of a modulation symbol.
摘要翻译：一种软判决值生成电路，其能够减少用于生成软决策值的计算量和硬件比例。软判决值生成电路包括：相位旋转单元，在相干检测之后旋转接收符号的相位; 通过使用相位旋转的接收符号，计算预先限制的软判决值候选的软判定值的绝对值; 最小值选择单元从软判决值的绝对值中选择最小值; 符号反射单元，基于相位旋转之后的接收符号的相位，将信息签到最小值; 以及软判决值校正单元，其将符号反射单元的输出乘以取决于噪声方差值和调制符号的振幅值的系数。

2. 发明申请

US20130205184A1 SOFT DECISION VALUE GENERATION CIRCUIT 有权
标题翻译：软判决值生成电路
公开(公告)号：US20130205184A1
公开(公告)日：2013-08-08
申请号：US13879177
申请日：2011-11-04
申请人： Hiroshi Nishimoto , Akira Kurita
发明人： Hiroshi Nishimoto , Akira Kurita
IPC分类号： G06F11/10
CPC分类号： G06F11/10 , H03M13/255 , H04L25/03318 , H04L25/067 , H04L27/2273
摘要： A soft decision value generation circuit capable of reducing amount of calculation and hardware scale for generating a soft decision value. The soft decision value generation circuit includes: a phase rotation unit rotating phases of received symbols after coherent detection; addition units calculating, by using the phase-rotated received symbols, absolute values of soft decision values for soft decision value candidates restricted in advance; minimum value selection units selecting minimum values out of the absolute values of the soft decision values; sign reflection units reflecting, based on the phases of the received symbols after the phase rotation, sign information to the minimum values; and soft decision value correction units multiplying outputs of the sign reflection units by a coefficient depending on a noise variance value and an amplitude value of a modulation symbol.
摘要翻译：一种软判决值生成电路，其能够减少用于生成软决策值的计算量和硬件比例。软判决值生成电路包括：相位旋转单元，在相干检测之后旋转接收符号的相位; 通过使用相位旋转的接收符号，计算预先限制的软判决值候选的软判定值的绝对值; 最小值选择单元从软判决值的绝对值中选择最小值; 符号反射单元，基于相位旋转之后的接收符号的相位，将信息签到最小值; 以及软判决值校正单元，其将符号反射单元的输出乘以取决于噪声方差值和调制符号的振幅值的系数。

3. 发明授权

US06327114B1 Recording medium driving apparatus 失效
标题翻译：记录介质驱动装置
公开(公告)号：US06327114B1
公开(公告)日：2001-12-04
申请号：US09315604
申请日：1999-05-20
申请人： Akira Otsuki , Akira Kurita
发明人： Akira Otsuki , Akira Kurita
IPC分类号： G11B1704
CPC分类号： G11B17/043 , G11B17/0436
摘要： A recording medium driving apparatus to be used with a recording medium comprises a unit having a driving section receiving a loaded recording medium recording information in the recording medium and/or reproducing the information recorded in the recording medium, and a holding member holding the recording medium and movable in an inserting direction toward the driving section and in a discharging direction leaving the driving section together with the recording medium; an elastic support member supporting the unit against a fixed section; an intermediate member movably supported by the fixed section and connected to the holding member; and a driving member connected to the intermediate member and causing, by the moving force thereof, the holding member to move in the inserting direction or in the discharging direction via the intermediate member; wherein a transmitting section for transmitting a driving force of the driving member to the intermediate member and a relief section for making the intermediate member movable relative to the driving member after the completion of movement of the holding member in the inserting direction are provided on a connecting section of the driving member and the intermediate member. By using this configuration, it is possible to reduce the weight of the unit to be elastically supported, and downsize and reduce thickness of the vibration preventive space and the entire apparatus.
摘要翻译：与记录介质一起使用的记录介质驱动装置包括具有驱动部分的单元，该驱动部分在记录介质中接收加载的记录介质记录信息和/或再现记录在记录介质中的信息，以及保持构件，并且能够沿着插入方向朝着驱动部分移动，并且在排出方向上可移动地离开驱动部分与记录介质一起; 支撑所述单元抵靠固定部分的弹性支撑构件; 中间构件，其由所述固定部移动地支撑并连接到所述保持构件; 以及驱动构件，其连接到所述中间构件，并且通过其移动力使所述保持构件经由所述中间构件沿插入方向或排出方向移动; 其特征在于，在所述保持部件沿着插入方向移动完成后，在所述插入方向上设置有用于将所述驱动部件的驱动力传递到所述中间部件的传递部和用于使所述中间部件相对于所述驱动部件移动的释放部，驱动构件和中间构件的截面。通过使用这种结构，能够减轻弹性支撑单元的重量，并且能够减小振动抑制空间和整个装置的厚度。

4. 发明授权

US06301215B1 Recording medium driving apparatus 失效
标题翻译：记录介质驱动装置
公开(公告)号：US06301215B1
公开(公告)日：2001-10-09
申请号：US09347095
申请日：1999-07-02
申请人： Akira Otsuki , Akira Kurita
发明人： Akira Otsuki , Akira Kurita
IPC分类号： G11B1704
CPC分类号： G11B17/0434 , G11B33/08
摘要： The present invention provides a recording medium driving apparatus comprising an enclosure having an insertion port for insertion and discharge of a recording medium; a holder holding the recording medium inserted through the insertion port; a driving section having a turntable onto which the recording medium held by the holder is mounted and a locating member for positioning the recording medium; a holder transfer mechanism for transferring the holder in a first direction approaching the driving section and in a second direction leaving the driving section; an elastic support member elastically supporting the driving section in the enclosure; and a constraining mechanism constraining transfer of the driving section; and before the holder having the recording medium inserted therein is transferred by the holder transfer mechanism in the first direction, or after beginning moving in the first direction and before a recording medium inserted in an abnormal direction or posture comes into contact with the turntable or the locating member, the constrained state of the driving section by the constraining mechanism is released. As a result, it is possible to alleviate the pressing force, produced when the holder holding a recording medium inserted in an abnormal state approaches the driving section and the recording medium in the holder comes into contact with the turntable or the locating member, under the effect of elastic supporting members supporting the driving section, thus preventing deformation or a positional shift of the turntable or deformation of, or damage to, the recording medium.
摘要翻译：本发明提供一种记录介质驱动装置，包括具有用于插入和排出记录介质的插入口的外壳; 保持通过插入口插入的记录介质的保持器; 驱动部，其具有安装有由保持器保持的记录介质的转台和用于定位记录介质的定位构件; 保持器传送机构，用于沿着接近驱动部分的第一方向和离开驱动部分的第二方向传送保持器; 弹性支撑构件，弹性支撑所述驱动部分在所述外壳中; 以及限制所述驱动部的传递的约束机构; 并且在具有插入其中的记录介质的保持器之前，通过保持器传送机构沿第一方向传送，或者在开始沿第一方向移动之后并且在异常方向或姿势插入的记录介质与转台或通过约束机构释放驱动部的约束状态。结果，可以减轻当保持以异常状态插入的记录介质的保持器接近驱动部分并且保持器中的记录介质与转台或定位构件接触时产生的按压力，支撑驱动部的弹性支撑部件的作用，从而防止转盘的变形或位置偏移或变形或损坏记录介质。

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