公开(公告)号：US06904267B2

公开(公告)日：2005-06-07

申请号：US10229010

申请日：2002-08-28

申请人： Naoki Hongo ,  Yoichi Okubo ,  Masaki Suto ,  Tetsuhiko Miyatani

发明人： Naoki Hongo ,  Yoichi Okubo ,  Masaki Suto ,  Tetsuhiko Miyatani

IPC分类号： H03F1/32 ,  H03G3/30 ,  H04B1/04 ,  H04B1/707 ,  H04B1/7097 ,  H04J1/00 ,  H04J1/02 ,  H04L27/00 ,  H04L27/20 ,  H04L27/26 ,  H04L27/36 ,  H04W76/02 ,  H04W88/08

CPC分类号： H03F1/3282 ,  H03F1/3241 ,  H04B1/0475 ,  H04B2001/0425 ,  H04L27/2626 ,  H04L27/368

摘要： To provide an amplifying device with reduced size, weight and cost. The amplifying device delays input signals using digital delay sections in a main signal system, performs offset rotation processing of digital input signals in carrier offset sections and power detection in a power detecting section in a control system, matches phases of a multi-carrier signal of the main signal system and a power value signal of the control system in a phase control section, and gives distortion compensation in a predistorter for canceling a nonlinear characteristic generated in an amplifier.

摘要翻译： 提供减小尺寸，重量和成本的放大装置。 放大装置使用主信号系统中的数字延迟部延迟输入信号，对载波偏移部分的数字输入信号进行偏移旋转处理，并在控制系统的功率检测部分进行功率检测， 主信号系统和相位控制部分中的控制系统的功率值信号，并且在用于消除放大器中产生的非线性特性的预失真器中给出失真补偿。

公开(公告)号：US06731919B2

公开(公告)日：2004-05-04

申请号：US09973691

申请日：2001-10-11

申请人： Takashi Uchida ,  Masaki Suto ,  Shoji Fujimoto ,  Junetsu Urata ,  Hidefumi Ito

发明人： Takashi Uchida ,  Masaki Suto ,  Shoji Fujimoto ,  Junetsu Urata ,  Hidefumi Ito

IPC分类号： H04B700

CPC分类号： H04B1/0475

摘要： Disclosed is an amplifier apparatus that corrects mismatching of the filter transmission characteristic due to a change in the temperature of the amplifier apparatus itself and thereby stably amplifies the high-frequency signal. The amplifier apparatus converts a signal to be processed into one having an intermediate frequency band to thereby execute amplification processing. It comprises a local oscillator 31 the oscillation frequency of that can be altered, a first frequency converter 13 that converts the signal by the use of the oscillation frequency from the local oscillator into an intermediate frequency, a first band pass filter 14 that band-limits the signal having the intermediate, an amplifier 15 that amplifies the signal of the intermediate frequency that has passed therethrough, a second band pass filter 16 that band-limits the signal of the intermediate frequency that has been output therefrom, a second frequency converter 17 that converts the signal of the intermediate frequency that has passed therethrough into the original frequency by the use of the local-oscillation frequency, a temperature sensor 32 that detects the temperature of each of the first and second filters 14, 16, and a controller 33 that alters the oscillation frequency of the local oscillator 31 in correspondence with the detected temperature and thereby stabilizes the transmission characteristic of each of the first and second filters irrespective of the change in the temperature.

摘要翻译： 公开了一种放大器装置，其校正由于放大器装置本身的温度变化引起的滤波器传输特性的不匹配，从而稳定地放大高频信号。 放大器装置将要处理的信号转换为具有中频带的信号，从而执行放大处理。 它包括可以改变其振荡频率的本地振荡器31，通过使用振荡频率将信号从本地振荡器转换为中频的第一频率转换器13，限制频带的第一带通滤波器14 具有中间信号的放大器15，放大已经通过的中频信号的放大器15，限制从其输出的中频信号的第二带通滤波器16，第二频率转换器17， 通过使用本地振荡频率将已经过去的中频的信号转换成原始频率，检测第一和第二滤波器14,16中的每一个的温度的温度传感器32和控制器33， 根据检测到的温度改变本地振荡器31的振荡频率，从而使传输稳定 无论温度的变化如何，第一和第二滤光器的每一个都具有特征。

公开(公告)号：US06271723B1

公开(公告)日：2001-08-07

申请号：US09512331

申请日：2000-02-24

申请人： Terufumi Nagano ,  Yoichi Okubo ,  Yasuo Sera ,  Masaki Suto ,  Hidefumi Ito

发明人： Terufumi Nagano ,  Yoichi Okubo ,  Yasuo Sera ,  Masaki Suto ,  Hidefumi Ito

IPC分类号： H03F126

CPC分类号： H03F1/3276 ,  H03F2200/294 ,  H03F2200/372

摘要： A distortion compensating device comprises a 3 dB coupler having four terminals. The first terminal supplies an input signal to be inputted to an amplifier or is supplied with an input signal from an amplifier. The second terminal is associated with a third-order distortion generator for generating a third-order distortion having an amplitude for canceling out a third-order distortion generated by the amplifier depending on the supplied input signal. The third terminal is associated with a phase adjuster for adjusting the phase of the input signal to set the phase difference between the input signal and the third-order distortion generated by the third-order distortion generator to a phase difference for canceling out the third-order distortion generated by the amplifier. The fourth terminal combines and outputs the third-order distortion generated by the third-order distortion generator and the input signal whose phase is adjusted by the phase adjuster for compensating for the third-order distortion generated by the amplifier.

摘要翻译： 失真补偿装置包括具有四个端子的3dB耦合器。 第一端子提供要输入到放大器的输入信号或从放大器提供输入信号。 第二终端与三阶失真发生器相关联，用于根据提供的输入信号产生具有消除由放大器产生的三阶失真的幅度的三阶失真。 第三端子与用于调节输入信号的相位的相位调整器相关联，以将输入信号和由三阶失真发生器产生的三阶失真之间的相位差设置为相位差，以消除第三级失真发生器， 由放大器产生的阶失真。 第四端子组合并输出由三阶失真发生器产生的三阶失真和相位由相位调整器调整的输入信号，以补偿由放大器产生的三阶失真。

公开(公告)号：US08165511B2

公开(公告)日：2012-04-24

申请号：US12557162

申请日：2009-09-10

申请人： Tatsuya Nakamura ,  Masaki Suto

发明人： Tatsuya Nakamura ,  Masaki Suto

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/00 ,  G03G15/0136 ,  G03G15/161 ,  G03G15/1615 ,  G03G15/6564 ,  G03G2215/1623

摘要： An offset correcting device includes: an endless belt-like member having an endless belt-like shape; a rotation supporting member that has a rotation shaft in which an axial direction extends along a width direction of the endless belt-like member, and that is rotated while supporting the endless belt-like member; an interlocking member that is supported by one end portion of the rotation shaft to be movable along the axial direction, and that is capable of being contacted with a width direction edge of the endless belt-like member; and a shaft displacing member as defined herein.

摘要翻译： 偏移校正装置包括：环形带状构件，其具有环形带状形状; 旋转支撑构件，其具有轴向沿着环形带状构件的宽度方向延伸的旋转轴，并且在支撑环形带状构件的同时旋转; 联锁构件，其由所述旋转轴的一个端部支撑，以沿着轴向可移动，并且能够与所述环形带状构件的宽度方向边缘接触; 以及如本文所定义的轴移动构件。

公开(公告)号：US20110134002A1

公开(公告)日：2011-06-09

申请号：US12926532

申请日：2010-11-23

申请人： Masaki Suto ,  Ryoji Matsubara ,  Naobumi Michishita

发明人： Masaki Suto ,  Ryoji Matsubara ,  Naobumi Michishita

IPC分类号： H01Q1/48

CPC分类号： H01Q9/0421 ,  H01Q1/48

摘要： Provided is a capacity loaded planar antenna with short stubs that can be brought to a small size and a low profile, achieves wider bandwidth, and can be tuned to multiple frequencies. A capacity loaded planar antenna with short stubs that has a simple structure and can be easily manufactured includes a base plate, an antenna element disposed so as to be parallel to the base plate, a plurality of short stubs that connect the antenna element to the base plate, and a side wall formed on the end of the base plate. The capacity loaded planar antenna achieves wider bandwidth with the small size and low profiled, can be tuned to multiple frequencies by adjusting the length of the short stubs, and uses plate-shaped foldable short stubs that are integrated with the antenna element.

摘要翻译： 提供了一种具有短插脚的容量负载平面天线，其可以被带到小尺寸和低轮廓，实现更宽的带宽，并且可以被调谐到多个频率。 具有简单结构并且易于制造的具有短短截线的容量负载平面天线包括基板，与基板平行设置的天线元件，将天线元件连接到基座的多个短截线 板和形成在基板的端部上的侧壁。 容量负载的平面天线在小尺寸和低剖面下实现更宽的带宽，可以通过调整短根的长度来调谐到多个频率，并使用与天线元件集成的板形折叠短截线。

公开(公告)号：US07847630B2

公开(公告)日：2010-12-07

申请号：US11255874

申请日：2005-10-24

申请人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

发明人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

IPC分类号： H03F3/28

CPC分类号： H03F1/0288

摘要： There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.

摘要翻译： 提供了用于组合多个放大电路的输出以产生放大器输出的放大器。 放大器包括用于操作AB类中的第一放大装置的第一放大电路，其中第一放大电路是多个放大电路之一; 用于在B类或C类中操作第二放大装置的第二放大电路，其中第二放大电路是多个放大电路之一; 以及求和节点，第一放大电路的输出通过包含除λ/ 4以外的电长度的传输线的第一阻抗变换器与第二放大电路的输出相结合。 第二放大装置经由输出匹配电路和包含传输线的第二阻抗变换器连接到求和节点。

公开(公告)号：US20060097783A1

公开(公告)日：2006-05-11

申请号：US11255874

申请日：2005-10-24

申请人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

发明人： Yoichi Okubo ,  Masaki Suto ,  Yasuhiro Takeda ,  Masaru Adachi

IPC分类号： H03F3/68

CPC分类号： H03F1/0288

摘要： There is provided an amplifier for combining outputs of a plurality of amplifying circuits to generate an amplifier output. The amplifier includes a first amplifying circuit for operating a first amplifying device in class-AB, wherein the first amplifying circuit is one among the plurality of the amplifying circuits; a second amplifying circuit for operating a second amplifying device in class-B or class-C, wherein the second amplifying circuit is one among the plurality of the amplifying circuits; and a summing node at which an output of the first amplifying circuit is combined with an output of the second amplifying circuit via a first impedance transformer containing a transmission line of an electrical length other than λ/4. The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.

公开(公告)号：US06931239B2

公开(公告)日：2005-08-16

申请号：US10205563

申请日：2002-07-26

申请人： Naoki Hongo ,  Yoichi Okubo ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Tetsuhiko Miyatani

发明人： Naoki Hongo ,  Yoichi Okubo ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Tetsuhiko Miyatani

IPC分类号： H03G11/04 ,  H04L27/26 ,  H04B1/02 ,  H04B1/04

CPC分类号： H03G11/04 ,  H04L27/2623

摘要： A peak limiter for use in a system for amplifying a multi-carrier signal receives a baseband signal of each carrier of the multi-carrier signal. The multi-carrier signal is computationally estimated to have carriers combined in an RF band, and obtains power information of the multi-carrier signal to limit an amplitude of the baseband signal based on the power information of the estimated multi-carrier signal to thereby provide peak-limited baseband signals. Thus, the distortion generated by performing the unnecessary peak limitation can be effectively prevented to thereby improve the reliability of the entire system.

摘要翻译： 用于放大多载波信号的系统中的峰值限制器接收多载波信号的每个载波的基带信号。 计算地估计多载波信号使载波组合在RF频带中，并且基于估计的多载波信号的功率信息获得多载波信号的功率信息以限制基带信号的幅度，从而提供 峰值限制基带信号。 因此，可以有效地防止通过执行不必要的峰值限制而产生的失真，从而提高整个系统的可靠性。

公开(公告)号：US06925106B2

公开(公告)日：2005-08-02

申请号：US09880958

申请日：2001-06-15

申请人： Masato Horaguchi ,  Naoki Hongo ,  Takashi Uchida ,  Masaki Suto ,  Toshio Takada

发明人： Masato Horaguchi ,  Naoki Hongo ,  Takashi Uchida ,  Masaki Suto ,  Toshio Takada

IPC分类号： H03F1/32 ,  H04B1/04 ,  H04B1/707 ,  H04J13/00 ,  H04L27/30

CPC分类号： H03F1/3247 ,  H03F1/3282 ,  H03F2200/102 ,  H03F2201/3233

摘要： To update the control value to a value of higher precision in a predistortion type distortion compensation apparatus for compensating the distortion occurring in an amplifier for amplifying an input signal by the control using a control value corresponding to the level of the input signal.Distortion generating means (1) generates distortion in an input signal, input signal level detecting means (3) detects the level of the input signal, distortion control means (4) controls the distortion generated by the distortion generating means 1 by using a control value corresponding to the level of the detected input signal, distortion component level detecting means (7) detects the level of distortion component contained in the amplified signal issued from the amplifier (2), integrating means K1 to KN integrate the level of the distortion component detected at every level of the detected input signal, and control value updating means (10) updates the control value corresponding to the level so that the integration result at every level of the input signal may be small.

摘要翻译： 在预失真型失真补偿装置中，通过使用与输入信号的电平相对应的控制值进行控制来补偿放大器放大输入信号的失真的预失真型失真补偿装置，将控制值更新为更高的精度值。 失真产生装置（1）在输入信号中产生失真，输入信号电平检测装置（3）检测输入信号的电平，失真控制装置（4）通过使用控制值来控制失真发生装置1产生的失真 对应于检测到的输入信号的电平，失真分量电平检测装置（7）检测从放大器（2）发出的放大信号中包含的失真分量的电平，积分装置K 1至K N将失真分量 在检测到的输入信号的各个级别检测到，并且控制值更新装置（10）更新与电平相对应的控制值，使得输入信号的每个级别的积分结果可能较小。

公开(公告)号：US06785491B2

公开(公告)日：2004-08-31

申请号：US10365470

申请日：2003-02-13

申请人： Hiroyuki Mitsu ,  Masaki Suto

发明人： Hiroyuki Mitsu ,  Masaki Suto

IPC分类号： G03G1516

CPC分类号： G03G15/161 ,  G03G15/162 ,  G03G2215/0119

摘要： To provide an image forming apparatus capable of reliably removing an untransferred residual toner from the surface of an intermediate transfer drum which is covered with an elastic layer, thereby enabling to form a recorded image having a high image quality with no ghost image, and capable of continuing to form recorded images having the high image quality over a long period of time without causing damage to the intermediate transfer drum. The intermediate transfer drum is structured such that the periphery of a metal base is covered with an elastic layer. As a toner discharging member for capturing a toner adhered to the intermediate transfer drum and discharging the toner as waste into a recovery box, there are provided a recovery roll that rotates while being in contact with the intermediate transfer drum and a scraper for scraping off a toner adhered to the surface of the recovery roll.

摘要翻译： 为了提供能够从被弹性层覆盖的中间转印鼓的表面可靠地除去未转印的残留调色剂的图像形成装置，从而能够形成没有重影图像的高图像质量的记录图像，并且能够 继续在长时间内形成具有高图像质量的记录图像，而不会损坏中间转印鼓。 中间转印鼓被构造成使得金属基底的周边被弹性层覆盖。 作为用于捕获粘附到中间转印鼓上的调色剂并将调色剂作为废料排出到回收箱中的调色剂排出构件，设置有与中间转印鼓接触而旋转的回收辊和用于刮除 调色剂附着在回收辊的表面上。