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    • 1. 发明授权
    • Transmitter, RF transmitter signal processor and method for operation of transmitter
    • 发射机,射频发射机信号处理器和发射机操作方法
    • US08150342B2
    • 2012-04-03
    • US12109426
    • 2008-04-25
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • H04B1/04H01Q11/12
    • H04W52/52H03G3/3047H04L27/361
    • An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
    • 调整RF IC的内部操作,使得RF发射器信号的电平基本上停止上升,或者在RF发射器信号的上升过程中下降。 该调整通过斜坡调整数据启用,最后4个符号包含在完成斜坡后发送的实际传输数据的前导数据先例中。 从基带LSI提供斜升调整数据和实际发送数据。 RF发射机信号包含根据EDGE系统的相位和幅度调制分量。 RF IC包括相位和幅度调制控制环路PM LP和AM LP。 通过根据斜坡信息控制AM LP中包括的第一可变放大器MVGA的增益来执行RF功率放大器PA1和PA2的上升。 因此,在RF功率放大器的RF发射器信号的斜坡上升期间,有害辐射的电平被降低。
    • 2. 发明授权
    • Transmitter, RF transmitter signal processor and method for operation of transmitter
    • 发射机,射频发射机信号处理器和发射机操作方法
    • US08374559B2
    • 2013-02-12
    • US13404530
    • 2012-02-24
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • Hiroaki MatsuiYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • H01Q11/12H04B1/04
    • H04W52/52H03G3/3047H04L27/361
    • An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
    • 调整RF IC的内部操作,使得RF发射器信号的电平基本上停止上升,或者在RF发射器信号的上升过程中下降。 该调整通过斜坡调整数据启用,最后4个符号包含在完成斜坡后发送的实际传输数据的前导数据先例中。 从基带LSI提供斜升调整数据和实际发送数据。 RF发射机信号包含根据EDGE系统的相位和幅度调制分量。 RF IC包括相位和幅度调制控制环路PM LP和AM LP。 通过根据斜坡信息控制AM LP中包括的第一可变放大器MVGA的增益来执行RF功率放大器PA1和PA2的上升。 因此,在RF功率放大器的RF发射器信号的斜坡上升期间,有害辐射的电平被降低。
    • 3. 发明申请
    • TRANSMITTER, RF TRANSMITTER SIGNAL PROCESSOR AND METHOD FOR OPERATION OF TRANSMITTER
    • 发射机,射频发射机信号处理器和发射机的操作方法
    • US20080287079A1
    • 2008-11-20
    • US12109426
    • 2008-04-25
    • Hiroaki MATSUIYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • Hiroaki MATSUIYasuo ShimaYasuyuki KimuraMasahiko Yamamoto
    • H04B1/16
    • H04W52/52H03G3/3047H04L27/361
    • An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
    • 调整RF IC的内部操作,使得RF发射器信号的电平基本上停止上升,或者在RF发射器信号的上升过程中下降。 该调整通过斜坡调整数据启用,最后4个符号包含在完成斜坡后发送的实际传输数据的前导数据先例中。 从基带LSI提供斜升调整数据和实际发送数据。 RF发射机信号包含根据EDGE系统的相位和幅度调制分量。 RF IC包括相位和幅度调制控制环路PM LP和AM LP。 通过根据斜坡信息控制AM LP中包括的第一可变放大器MVGA的增益来执行RF功率放大器PA 1和PA 2的上升。 因此,在RF功率放大器的RF发射器信号的斜坡上升期间,有害辐射的电平被降低。
    • 5. 发明授权
    • Driver and output buffer circuit
    • 驱动器和输出缓冲电路
    • US08299822B2
    • 2012-10-30
    • US12987095
    • 2011-01-08
    • Yasuo ShimaKatsuya SonoyamaYoichiro Kobayashi
    • Yasuo ShimaKatsuya SonoyamaYoichiro Kobayashi
    • H03K3/335
    • H03K19/017536
    • A driver circuit transmits a signal generated by a signal level generation circuit to a circuit to be measured by transmitting the signal to a output buffer circuit via a circuit (prebuffer circuit) that drives the output buffer circuit and causing the output buffer circuit to drive a transmission line. The driver circuit includes the prebuffer circuit and a replica buffer circuit formed by imitating the prebuffer circuit. The prebuffer circuit and the replica buffer circuit are disposed in parallel. The driver circuit temporarily increases input bias current to be supplied to output-stage transistors of the output buffer circuit on the basis of output current of the replica buffer circuit during transition of an input or output signal.
    • 通过驱动输出缓冲电路的电路(预缓冲电路)将信号发送到输出缓冲器电路,驱动电路将由信号电平产生电路产生的信号发送到要测量的电路,并使输出缓冲电路驱动 传输线。 驱动器电路包括预缓冲电路和通过模拟预缓冲器电路形成的复制缓冲电路。 预缓冲电路和复制缓冲电路并联布置。 基于输入或输出信号的转换期间的副本缓冲电路的输出电流,驱动电路暂时增加输出偏置电流以提供给输出缓冲电路的输出级晶体管。
    • 7. 发明授权
    • Linear actuator for a memory storage apparatus
    • 用于存储器存储装置的线性致动器
    • US4864447A
    • 1989-09-05
    • US150285
    • 1988-01-29
    • Shigeru TakekadoYasuo Shima
    • Shigeru TakekadoYasuo Shima
    • H02K33/18G11B21/02G11B21/08
    • G11B21/08
    • A linear actuator comprises a pair of central poles symmetrically arranged parallel to the direction of motion of a carriage for transducers. Four permanent magnets are disposed around each central pole leaving predetermined gaps. Four ambient poles and one terminal pole surround the permanent magnets and each central pole. Two driving coils are slidably movable in the predetermined gaps therebetween. Upper and lower flat plate members support the driving coils so they may be fixed to the carriage. The central poles each have a rectangular cross-section, the permanent magnets surrounding the exterior four walls of the central poles leaving the predetermined gaps in which the driving coils are disposed. The ambient poles and terminal poles surround the central poles and form closed magnetic circuits. The flat plate members of the carriage are composed of ceramic material. The driving coils, arranged inside the predetermined gaps, are mounted at the ends of the flat plate members. According to the above construction, the driving coils are entirely applied for driving the carriage. Moreover, due to the decrease in the quantity of the windings of each driving coil, and the light weight of the flat plate members, the carriage is light in weight while the linear actuator provides powerful actuation forces and achieves fast data access times. Furthermore, the pair of magnetic circuits ae closed as that the linear actuator reduces leakage flux and magnetic noise to a minimum.
    • 线性致动器包括对称地布置成平行于用于换能器的滑架的运动方向的中心极。 四个永磁体设置在每个中心极周围,留下预定的间隙。 四个环境极点和一个端子极围绕永磁体和每个中心极。 两个驱动线圈可以在它们之间的预定间隙中可滑动地移动。 上下平板构件支撑驱动线圈,使得它们可以固定到滑架上。 中心极各自具有矩形横截面,围绕中心极的外部四个壁的永久磁体离开设置驱动线圈的预定间隙。 环境极点和端子极围绕中心极并形成封闭的磁路。 托架的平板构件由陶瓷材料构成。 布置在预定间隙内的驱动线圈安装在平板构件的端部。 根据上述结构,驱动线圈完全被用于驱动滑架。 此外,由于每个驱动线圈的绕组数量的减少以及平板部件的轻量化,所以滑架重量轻,而线性致动器提供强大的致动力并且实现了快速的数据存取时间。 此外,一对磁路ae封闭,因为线性致动器将漏磁通和磁噪声降至最低。
    • 8. 发明授权
    • Sheet conveyance device
    • 纸张输送装置
    • US08002276B2
    • 2011-08-23
    • US12356922
    • 2009-01-21
    • Misato IshikawaYasuo ShimaMasaki Takahashi
    • Misato IshikawaYasuo ShimaMasaki Takahashi
    • B65H5/36B65H3/66
    • B65H5/062B65H5/36B65H9/006B65H2404/6111B65H2601/521Y10S271/902
    • A sheet conveyance device includes: a first conveyance member configured to convey a sheet in a first direction; a second conveyance member configured to convey the sheet in a second direction; a guide disposed between the first conveyance member and the second conveyance member, the guide having a curved face configured to guide the sheet conveyed from the first conveyance member to the second conveyance member; and an adjustment member disposed at an inner position of the curvature of the curved face of the guide, the adjustment member being configured to swing to contact with a curved inner face of the sheet guided by the guide in accordance with a contact force applied by the sheet.
    • 纸张输送装置包括:第一输送构件,其构造成沿第一方向输送纸张; 第二输送构件,其构造成沿第二方向输送所述纸张; 所述引导件设置在所述第一传送部件和所述第二传送部件之间,所述引导件具有弯曲面,所述弯曲面被构造成将从所述第一传送部件传送的所述纸张引导到所述第二传送部件; 以及调节构件,其设置在所述引导件的曲面的曲率的内部位置处,所述调整构件被构造成与由所述引导件引导的所述片材的弯曲内表面相一致地与所述引导件的弯曲内表面接触, 片。