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1. 发明申请

US20080019025A1 Objective Lens Drive 审中-公开
标题翻译：物镜透镜
公开(公告)号：US20080019025A1
公开(公告)日：2008-01-24
申请号：US11665560
申请日：2005-08-05
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G02B7/04
CPC分类号： G11B7/0932
摘要： An objective lens drive is provided which is capable of reducing a primary resonance frequency in the tracking direction while suppressing lowering of a buckling resonance frequency in the focus direction. In this objective lens drive: an objective lens secured to an objective lens holder is displaced relatively to a securing member in the focus direction and tracking direction through bending deformation of resilient supporting members; each resilient supporting member is provided with a trapezoidal portion in which the width in the tracking direction becomes narrower toward the end of the resilient supporting member; and the trapezoidal portion has a length of 27-50% of the effective length of the resilient deformation portion.
摘要翻译：提供一种物镜驱动器，其能够在抑制聚焦方向的屈曲共振频率的降低的同时降低跟踪方向上的主谐振频率。在该物镜驱动中：固定到物镜支架的物镜通过弹性支撑构件的弯曲变形相对于固定构件在聚焦方向和跟踪方向上移位; 每个弹性支撑构件设置有梯形部分，跟踪方向上的宽度朝向弹性支撑构件的端部变窄; 并且所述梯形部分具有所述弹性变形部分的有效长度的27-50％的长度。

2. 发明授权

US08284646B2 Objective lens driving device, control circuit, optical disc device and objective lens driving method 有权
标题翻译：物镜驱动装置，控制电路，光盘装置和物镜驱动方法
公开(公告)号：US08284646B2
公开(公告)日：2012-10-09
申请号：US11918430
申请日：2006-04-06
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B15/62 , G11B17/32 , G11B7/00
CPC分类号： G11B7/0935 , G11B7/0933 , G11B7/0956
摘要： An objective lens driving device includes an objective lens holder that holds an objective lens, plural elastic supporting members through that support the objective lens holder, tracking coils and that drive the objective lens holder in the tracking direction, tilting coils that tilt the objective lens holder with respect to the optical axis passing through the objective lens, a tracking control circuit that drives the tracking coils, and a tilting control circuit that drives the tilting coils. The tilting control circuit drives the tilting coils using a signal yielded by multiplying a tracking driving signal from the tracking control circuit by a specific scaling factor so as to cancel out a tilting force of the objective lens holder generated by the tracking coils.
摘要翻译：一种物镜驱动装置，包括：保持物镜的物镜支架;支撑物镜支架的多个弹性支撑部件;跟踪线圈;跟踪线驱动物镜支架;倾斜线圈，使物镜支架倾斜; 相对于通过物镜的光轴，驱动跟踪线圈的跟踪控制电路和驱动倾斜线圈的倾斜控制电路。倾斜控制电路使用通过将来自跟踪控制电路的跟踪驱动信号乘以特定缩放因子而产生的信号来驱动倾斜线圈，以抵消由跟踪线圈产生的物镜夹持器的倾斜力。

3. 发明申请

US20050232087A1 Magnetic head device and magneto-optical disc apparatus 审中-公开
标题翻译：磁头装置和磁光盘装置
公开(公告)号：US20050232087A1
公开(公告)日：2005-10-20
申请号：US11025346
申请日：2004-12-29
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B5/48 , G11B11/00
CPC分类号： G11B5/4826
摘要： A magnetic head device includes a head main body for applying a magnetic field to an information recording medium; a connecting member including a main part and an elastic part connected to the main part, the elastic part supporting the head main body such that the head main body is swingable; a first position restriction member provided at the head main body for restricting a position of the head main body by contacting the elastic part; and a second position restriction member for restricting a position of the head main body by restricting a position of the first position restriction member which in contact with the elastic part.
摘要翻译：磁头装置包括用于向信息记录介质施加磁场的磁头主体; 连接构件，包括主要部分和连接到主要部分的弹性部分，弹性部分支撑头部主体，使得头部主体可摆动; 第一位置限制构件，其设置在头主体上，用于通过接触弹性部分来限制头主体的位置; 以及第二位置限制构件，用于通过限制与弹性部分接触的第一位置限制构件的位置来限制头主体的位置。

4. 发明授权

US5881033A Objective lens actuator having a high degree of design freedom 失效
标题翻译：具有高度设计自由度的物镜致动器
公开(公告)号：US5881033A
公开(公告)日：1999-03-09
申请号：US791848
申请日：1997-01-30
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B7/09 , G11B7/095
CPC分类号： G11B7/0933 , G11B7/0927 , G11B7/093 , G11B7/0956
摘要： A structure has a focus coil wound or affixed on sides of a lens holder holding an objective lens and two or more permanent magnets spaced from each other and facing the focus coil with their magnetic poles directed in the same direction with respect to one side of the focus coil, wherein the density distribution of the magnetic flux passing through the side of the focus coil facing the permanent magnets has two or more maximum points. This allows for a large assembly error, or tolerance, and reduces inclination of the optical axis in an objective lens actuator used in the optical pickup of various kinds of optical disk devices.
摘要翻译：结构具有卷绕或固定在保持物镜的透镜保持器的侧面上的聚焦线圈，以及彼此间隔开的面对聚焦线圈的两个或更多个永磁体，其磁极相对于聚焦线圈，其中通过面对永磁体的聚焦线圈侧的磁通的密度分布具有两个或更多个最大点。这允许大的组装误差或公差，并且减少用于各种光盘装置的光学拾取器中的物镜致动器中的光轴的倾斜度。

5. 发明申请

US20090040905A1 Objective lens driving device, control circuit, optical disc device and objective lens driving method 有权
标题翻译：物镜驱动装置，控制电路，光盘装置和物镜驱动方法
公开(公告)号：US20090040905A1
公开(公告)日：2009-02-12
申请号：US11918430
申请日：2006-04-06
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B7/00
CPC分类号： G11B7/0935 , G11B7/0933 , G11B7/0956
摘要： An objective lens driving device includes an objective lens holder 2 that holds an objective lens 1, plural elastic supporting members 6A through 6F that support the objective lens holder 2, tracking coils 4A and 4B that drive the objective lens holder 2 in the tracking direction, tilting coils 11A and 11B that tilt the objective lens holder 2 with respect to the optical axis passing through the objective lens 1, a tracking control circuit 41 that drives the tracking coils 4A and 4B, and a tilting control circuit 11 that drives the tilting coils 11A and 11B. The tilting control circuit 11 drives the tilting coils 11A and 11B using a signal yielded by multiplying a tracking driving signal from the tracking control circuit 41 by a specific scaling factor K so as to cancel out a tilting force of the objective lens holder 2 generated by the tracking coils 4A and 4B.
摘要翻译：物镜驱动装置包括：保持物镜1的物镜保持架2，支撑物镜保持架2的多个弹性支撑部件6A〜6F，沿跟踪方向驱动物镜保持架2的追踪线圈4A，4B; 相对于通过物镜1的光轴使物镜保持架2倾斜的倾斜线圈11A，11B，驱动跟踪线圈4A，4B的跟踪控制电路41和驱动倾斜线圈的倾斜控制电路11 图11A和11B。倾斜控制电路11使用通过将来自跟踪控制电路41的跟踪驱动信号乘以特定比例因子K而产生的信号来驱动倾斜线圈11A和11B，以消除由物镜保持器2产生的倾斜力跟踪线圈4A和4B。

6. 发明申请

US20050174894A1 Magnetic head device 审中-公开
标题翻译：磁头装置
公开(公告)号：US20050174894A1
公开(公告)日：2005-08-11
申请号：US10508073
申请日：2003-10-14
申请人： Yutaka Murakami , Hironori Tomita
发明人： Yutaka Murakami , Hironori Tomita
IPC分类号： G11B5/48 , G11B11/105 , G11B17/03 , G11B11/00
CPC分类号： G11B11/10571 , G11B5/4826 , G11B5/4833 , G11B11/10558 , G11B11/1058
摘要： A magnetic head (4) and a magnetic head holding member (41) are cantilevered by a joint member (40). The magnetic head (4) includes a head main body (5) attached to a free end and a supporting member (6) having a supporting member elastic portion (10). The magnetic head holding member (41) has an elastic spring portion (44) near the joint member (40) and is opposed to an information recording medium (1) with the supporting member (6) interposed therebetween. The magnetic head holding member (41) includes position holding portions (48) protruding toward the information recording medium. When the magnetic head (4) is in a first position where the head main body (5) is located close to or in contact with the information recording medium (1) so as to perform recording or reproducing, the position holding portions (48) contact a cartridge holder (49). This makes it possible to reduce the thickness of a magnetic head device and a magneto-optical recording/reproducing apparatus. Further, due to the reduction of the number of components, the price of a magneto-optical recording/reproducing apparatus can be lowered further.
摘要翻译：磁头（4）和磁头保持构件（41）由接头构件（40）悬臂。磁头（4）包括附接到自由端的头主体（5）和具有支撑构件弹性部分（10）的支撑构件（6）。磁头保持构件（41）在接合构件（40）附近具有弹性弹簧部（44），并且与信息记录介质（1）相对，其间插入有支撑构件（6）。磁头保持构件（41）包括向信息记录介质突出的位置保持部（48）。当磁头（4）位于头部主体（5）靠近或与信息记录介质（1）接触以便进行记录或再现的第一位置时，位置保持部分（48）接触墨盒支架（49）。这使得可以减小磁头装置和磁光记录/再现装置的厚度。此外，由于部件数量的减少，可以进一步降低磁光记录/重放装置的价格。

7. 发明授权

US09981185B2 Server enabled user data exchange between information processing devices 有权
公开(公告)号：US09981185B2
公开(公告)日：2018-05-29
申请号：US14744041
申请日：2015-06-19
申请人： Masato Kuwahara , Yutaka Murakami
发明人： Masato Kuwahara , Yutaka Murakami
IPC分类号： A63F13/35 , A63F13/79 , H04L29/08 , H04W76/02 , H04W4/02 , H04W4/00
CPC分类号： A63F13/35 , A63F13/79 , H04L67/2871 , H04W4/023 , H04W4/029 , H04W4/80 , H04W76/11
摘要： A server device includes: a receiving unit configured to receive, from each of a plurality of information-processing devices, location information showing a respective location of each information-processing device; a setting unit configured to set a condition showing that one information-processing device is close to another information-processing device, based on a predetermined parameter; a determining unit configured to determine whether a first information-processing device and a second information-processing device from among the plurality of information-processing devices satisfy the condition based on the location information received by the receiving unit; and a transmitting unit configured to transmit information determined at the determining unit to the first information-processing device and the second information-processing device, in a case that the determining unit determines that the first information-processing device and the second information-processing device satisfy the condition.

8. 发明授权

US09287946B2 Precoding method, and transmitting device 有权
标题翻译：预编码方法和发送装置
公开(公告)号：US09287946B2
公开(公告)日：2016-03-15
申请号：US13810783
申请日：2011-12-01
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04L25/03 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/0469 , H04B7/06 , H04B7/0606 , H04B7/0689 , H04L25/03898
摘要： Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal in the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a precoding weight by a baseband signal after a first mapping and a baseband signal after a second mapping and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.
摘要翻译：公开了一种用于同时发送相同频率的第一调制信号和第二调制信号的传输方案。根据传输方案，预编码权重乘法单元在第一映射之后将预编码权重乘以基带信号和在第二映射之后将基带信号相乘，并输出第一调制信号和第二调制信号。在预编码权重乘法单元中，规则地跳跃预编码权重。

9. 发明授权

US09112568B2 Transmission device, transmission method, receiving device and receiving method 有权
标题翻译：传输设备，传输方式，接收设备和接收方式
公开(公告)号：US09112568B2
公开(公告)日：2015-08-18
申请号：US14128296
申请日：2012-06-21
申请人： Mikihiro Ouchi , Yutaka Murakami , Tomohiro Kimura
发明人： Mikihiro Ouchi , Yutaka Murakami , Tomohiro Kimura
IPC分类号： H04B7/02 , H04B7/10 , H04B7/06 , H04W52/18 , H04B10/532
CPC分类号： H04B7/10 , H04B7/0689 , H04B10/532 , H04W52/18 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/168 , Y02D70/442 , Y02D70/444
摘要： A transmission device transmits by performing SISO using a first polarization and by performing MISO and MIMO using the first (V) polarization and a second (H) polarization. For SISO communication, transmission is performed using an antenna having the first (V) polarization. For MISO and MIMO communication, transmission is performed using the antenna having the first (V) polarization and an antenna having the second (H) polarization. Accordingly, a reception device equipped only with a system for the antenna having the first (V) polarization is able to continue receiving the transmit data by SISO.
摘要翻译：传输设备通过使用第一偏振执行SISO并且通过使用第一（V）偏振和第二（H）偏振来执行MISO和MIMO来发送。对于SISO通信，使用具有第一（V）极化的天线进行发送。对于MISO和MIMO通信，使用具有第一（V）极化的天线和具有第二（H）极化的天线来执行传输。因此，仅配备具有第一（V）极化的天线的系统的接收装置能够通过SISO继续接收发送数据。

10. 发明授权

US09054757B2 Signal generating method and signal generating apparatus 有权
标题翻译：信号产生方法和信号发生装置
公开(公告)号：US09054757B2
公开(公告)日：2015-06-09
申请号：US14241130
申请日：2012-09-06
申请人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
发明人： Yutaka Murakami , Tomohiro Kimura , Mikihiro Ouchi
IPC分类号： H04B7/04 , H04L5/00
CPC分类号： H04B7/0469 , H04B1/0057 , H04B7/0417 , H04B7/0426 , H04B7/0456 , H04B7/0465 , H04L5/00 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L25/0222 , H04L27/20 , H04L27/34 , H04L27/36
摘要： A transmission method for simultaneously transmitting a first modulated signal and a second modulated signal at the same frequency includes performing precoding on both signals using a fixed precoding matrix and regularly changing the phase of at least one of the signals. In this method, the power ratio between a plurality of signals transmitted from a plurality of antennas at the same frequency and at the same time differs from the power ratio between a plurality of pilot signals transmitted from the plurality of antennas at the same frequency and at the same time, whereby the accuracy of channel estimation by a reception device is improved.
摘要翻译：用于以相同频率同时发射第一调制信号和第二调制信号的传输方法包括使用固定预编码矩阵对两个信号执行预编码，并定期改变至少一个信号的相位。在该方法中，以相同频率和同一时间从多个天线发送的多个信号之间的功率比与在相同频率和相同频率下从多个天线发送的多个导频信号之间的功率比不同同时，提高了接收装置的信道估计精度。

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