公开(公告)号：US5515000A

公开(公告)日：1996-05-07

申请号：US346637

申请日：1994-11-30

申请人： Satoshi Maruyama ,  Fumihiko Kobayashi ,  Junichi Hasegawa

发明人： Satoshi Maruyama ,  Fumihiko Kobayashi ,  Junichi Hasegawa

IPC分类号： H03F1/00 ,  H03F1/02 ,  H03F1/32

CPC分类号： H03F1/3235 ,  H03F2201/3212 ,  Y02B60/50

摘要： A feed-forward amplifier of a type preventing unwanted waves from being outputted in an initial operation suitable to a use in a radio transmitter-receiver in a radio communication system, aimed to reduce a loss in the course from an output of a main amplifier to an output of the apparatus by implementing an output control during the initial operation in the front stage of the main amplifier without switches having been heretofore used, further reducing a power consumption of the apparatus. The feed-forward amplifier of this invention is provided with a control unit which controls a pilot signal variably attenuating unit so as to gradually decrease an attenuation quantity of a pilot signal with use of results of detection conducted by a power source start-up detecting means and a main signal detecting means as timing information after a start-up of a power source of a main amplifier, and controls a main signal variably attenuating unit so as to gradually decrease an attenuation quantity of a main signal after the pilot signal variable attenuating unit has decreased the attenuation quantity of the pilot signal.

摘要翻译： 一种防止不想要的波在适用于无线电通信系统中的无线电发射机 - 接收机中的初始操作中输出的类型的前馈放大器，目的在于减少从主放大器输出到 通过在没有开关的主放大器的前级中的初始操作期间实现输出控制的装置的输出，进一步降低了装置的功耗。 本发明的前馈放大器设置有控制单元，该控制单元使用由电源启动检测装置进行的检测结果来控制导频信号可变衰减单元，以逐渐降低导频信号的衰减量 以及主信号检测装置，作为在主放大器的电源启动之后的定时信息，并且控制主信号可变衰减单元，以便在导频信号可变衰减单元之后逐渐减小主信号的衰减量 降低了导频信号的衰减量。

公开(公告)号：US5477187A

公开(公告)日：1995-12-19

申请号：US150087

申请日：1994-04-22

申请人： Fumihiko Kobayashi ,  Isamu Umino ,  Yoshiyasu Tsuruoka ,  Junichi Hasegawa ,  Toshiaki Suzuki ,  Tomohiro Nakamura ,  Teruhiko Kitazawa ,  Mitsunori Hanaka

发明人： Fumihiko Kobayashi ,  Isamu Umino ,  Yoshiyasu Tsuruoka ,  Junichi Hasegawa ,  Toshiaki Suzuki ,  Tomohiro Nakamura ,  Teruhiko Kitazawa ,  Mitsunori Hanaka

IPC分类号： H03F1/32 ,  H03F1/26

CPC分类号： H03F1/3235 ,  H03F1/3229 ,  H03F2201/3212

摘要： In a feed forward amplifier, an RF amplifier is supplied with an input RF signal at an input terminal for amplifying the same; a distortion extraction loop supplied with the input RF signal and further with the output RF signal from the RF amplifier is for extracting non-linear distortion components formed in the output RF signal as a result of amplification in the RF amplifier; a variable phase shifter is provided in the distortion extraction loop for varying a phase of the input RF signal; a variable attenuator is provided in the distortion extraction loop for attenuating an amplitude of the input RF signal that has been supplied to the distortion extraction loop; and a distortion extraction circuit is provided in the distortion extraction loop for producing a distortion output signal that includes non-linear components; further, a control circuit is supplied with the input signal and with the distortion output signal for extracting a main signal component contained in the distortion output signal. The control circuit controls the variable phase shifter and the variable attenuator such that a ratio of the main signal component level with respect to the input RF signal level is decreased.

摘要翻译： PCT No.PCT / JP93 / 00313 Sec。 371日期1994年04月22日 102（e）1994年4月22日PCT 1993年3月17日PCT公布。 第WO93 / 19521号公报 日期为1993年9月30日。在前馈放大器中，RF放大器在输入端提供输入RF信号以进行放大; 提供有输入RF信号的失真提取回路以及来自RF放大器的输出RF信号，用于提取在RF放大器中放大的结果，在输出RF信号中形成的非线性失真分量; 在所述失真提取环路中提供可变移相器，用于改变所述输入RF信号的相位; 在所述失真提取环路中提供可变衰减器，用于衰减已经提供给所述失真提取回路的输入RF信号的幅度; 并且在所述失真提取回路中提供失真提取电路，用于产生包括非线性分量的失真输出信号; 此外，控制电路被提供有输入信号和用于提取包含在失真输出信号中的主信号分量的失真输出信号。 控制电路控制可变移相器和可变衰减器，使得主信号分量电平相对于输入RF信号电平的比率降低。

公开(公告)号：US5898339A

公开(公告)日：1999-04-27

申请号：US912687

申请日：1997-08-18

申请人： Satoshi Maruyama ,  Tokihiro Miyo ,  Fumihiko Kobayashi ,  Akira Seino

发明人： Satoshi Maruyama ,  Tokihiro Miyo ,  Fumihiko Kobayashi ,  Akira Seino

IPC分类号： H03F1/32 ,  H04J1/00 ,  H03F1/26

CPC分类号： H03F1/3235

摘要： A feedforward amplifier having a distortion detection loop and a distortion elimination loop is provided that achieves increased accuracy, improved response, and stable operation. A variable attenuator is placed in front of a detector in a loop output stage, and the amount of attenuation in the variable attenuator is set large during a transient response period during the rising of the amplifier, and set small during a steady-state condition. The detection of the transition to the steady-state condition is accomplished, for example, by comparing the detector output with a prescribed threshold value. The width of perturbation is set large during a transient response period, and set small during a steady-state condition.

摘要翻译： 提供具有失真检测回路和失真消除回路的前馈放大器，其实现了增加的精度，改进的响应和稳定的操作。 可变衰减器放置在环路输出级中的检测器的前面，并且在放大器的上升期间的瞬态响应周期期间可变衰减器中的衰减量被设置得很大，并且在稳态条件期间设置得较小。 例如，通过将检测器输出与规定的阈值进行比较来实现向稳态条件的转变的检测。 在瞬态响应期间扰动宽度设置较大，在稳态条件下设置较小。

公开(公告)号：US5548799A

公开(公告)日：1996-08-20

申请号：US186334

申请日：1994-01-25

申请人： Fumihiko Kobayashi ,  Junichi Hasegawa

发明人： Fumihiko Kobayashi ,  Junichi Hasegawa

IPC分类号： H04B7/26 ,  H04B17/00 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/34 ,  H04B1/60 ,  H03C1/62 ,  H04B17/02

CPC分类号： H04B17/19 ,  H04B17/101 ,  Y02B60/50

摘要： A member communication system which includes a radio base station connected to an exchange for establishing a communication interface with a mobile terminal such as a car telephone set where the number of output carriers of a modulation apparatus to be inputted to an amplification apparatus is controlled so as to be decreased in response to failure of an amplification circuit or circuits so that an increase in intermodulation distortion is eliminated and the necessity for each amplification circuit to have a superfluous saturation output is eliminated, thereby reducing power consumption. In the mobile communication system, the radio base station includes a modulation apparatus including a plurality of modulation circuits for outputting carriers different from each other, an amplification apparatus including a plurality of amplification circuits connected in parallel to each other, failure supervision apparatus for supervising a failed condition of the amplification circuits of the amplification apparatus, and an output carrier number control apparatus, for controlling the number of output carriers of the modulation apparatus in response to amplification circuit failure information detected by the failure supervision apparatus.

摘要翻译： 一种成员通信系统，包括连接到交换机的无线电基站，用于建立与诸如汽车电话机的移动终端的通信接口，其中输入到放大装置的调制装置的输出载体的数量被控制为 响应于放大电路或电路的故障而减小，从而消除了互调失真的增加，并且消除了每个放大电路具有多余饱和输出的必要性，从而降低了功耗。 在移动通信系统中，无线基站包括：调制装置，包括：多个调制电路，用于输出彼此不同的载波;放大装置，包括彼此并联连接的多个放大电路;故障监视装置，用于监视 放大装置的放大电路的故障状态和输出载波号控制装置，用于响应于由故障监视装置检测到的放大电路故障信息来控制调制装置的输出载波数。

公开(公告)号：US07254377B2

公开(公告)日：2007-08-07

申请号：US10015369

申请日：2001-12-12

申请人： Satoshi Maruyama ,  Osamu Mita ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Norio Tozawa ,  Fumihiko Kobayashi

发明人： Satoshi Maruyama ,  Osamu Mita ,  Yasuyuki Oishi ,  Tokuro Kubo ,  Norio Tozawa ,  Fumihiko Kobayashi

IPC分类号： H04B1/04

CPC分类号： H03F3/602 ,  H03F1/3241 ,  H03F1/3247 ,  H04B1/0483 ,  H04B2001/0425

摘要： A parallel operation system of transmission amplifiers enable the parallel running by the two distortion compensation amplifiers using the digital pre-distorter system and to provide a parallel operation system of the transmission amplifiers that makes it possible to switch to respective single running easily. The parallel operation system includes first and second transmission amplifiers which receive common input signals for outputting amplified signals from respective ones; and a coupling unit which combines outputs of the first and second transmission amplifiers, to provide as its output; the first and second transmission amplifiers each having a main amplifier; and a modulation unit disposed on the input side of the main amplifier; wherein the output of one of the modulation units included in the first and second transmission amplifiers is fed in common to the main amplifiers included in the first and second transmission amplifiers.

摘要翻译： 传输放大器的并行操作系统使得能够通过使用数字预失真器系统的两个失真补偿放大器的并行运行，并且提供可以容易地切换到相应的单个运行的发送放大器的并行操作系统。 并行操作系统包括第一和第二发送放大器，其接收用于从相应输入信号输出放大信号的公共输入信号; 以及耦合单元，其组合第一和第二发送放大器的输出，以提供其输出; 第一和第二发送放大器各自具有主放大器; 以及调制单元，设置在所述主放大器的输入侧; 其中包括在第一和第二发送放大器中的调制单元之一的输出被共同馈送到包括在第一和第二发送放大器中的主放大器。

公开(公告)号：US6148185A

公开(公告)日：2000-11-14

申请号：US594828

申请日：1996-01-31

申请人： Satoshi Maruyama ,  Tokihiro Miyo ,  Fumihiko Kobayashi ,  Tatsuo Furukawa ,  Norio Tazawa ,  Yasushi Seino

发明人： Satoshi Maruyama ,  Tokihiro Miyo ,  Fumihiko Kobayashi ,  Tatsuo Furukawa ,  Norio Tazawa ,  Yasushi Seino

IPC分类号： H03F1/32 ,  H04J1/00 ,  H04L27/26 ,  H04B17/00

CPC分类号： H03F1/3235 ,  H04B17/104 ,  H04B17/13 ,  Y02B60/50

摘要： The present invention relates to a feed-forward amplifying device suitable for radio communication systems such as digital automobile telephone. In the feed-forward amplifying device which includes a distortion extracting loop circuit unit including a main amplifier which amplifies a main signal in a main signal system, the distortion extracting loop circuit unit creating a distortion extracting signal by controlling the phase of the main signal the distortion extracting signal obtained by canceling the main signal component of an output from the main amplifier; and a distortion removing loop circuit unit arranged at the rear stage of the main amplifier, the distortion removing loop circuit unit producing only the main signal component from a signal in the main signal system at the rear stage of the main amplifier using the distortion extracting signal obtained by canceling the main signal component, the distortion extracting loop circuit unit executes phase control by shifting a phase control point where the main signal can be most canceled, thus creating the distortion extracting signal. This device can improve the power efficiency with a small back-up of the amplifier and stably produce a low-distortion amplified signal.

摘要翻译： 本发明涉及一种适用于数字汽车电话等无线通信系统的前馈放大装置。 在包括失真提取环路电路单元的前馈放大装置中，包括放大主信号系统中的主信号的主放大器，失真提取回路电路单元通过控制主信号的相位来产生失真提取信号 通过消除来自主放大器的输出的主信号分量而获得的失真提取信号; 以及设置在主放大器的后级的失真消除环路电路单元，失真消除环路电路单元，使用失真提取信号仅在主放大器的后级的主信号系统中的信号中产生主信号分量 通过取消主信号分量获得，失真提取回路电路单元通过移位主信号可以被最多地取消的相位控制点来执行相位控制，从而创建失真提取信号。 该器件可以通过放大器的小型备份来提高功耗，并稳定地产生低失真放大信号。

公开(公告)号：US5800839A

公开(公告)日：1998-09-01

申请号：US802933

申请日：1997-02-21

申请人： Yoshiaki Kudo ,  Haruo Okada ,  Fumihiko Kobayashi

发明人： Yoshiaki Kudo ,  Haruo Okada ,  Fumihiko Kobayashi

IPC分类号： B29C33/32 ,  B29C45/00

CPC分类号： B29C33/32 ,  B29C45/0013 ,  B29C45/00 ,  B29K2995/0008 ,  Y10S264/58 ,  Y10S425/033

摘要： A plastic magnet injection molding machine comprising a pair of exciting coils respectively embedded into a fixed plate and a movable plate along with respective seats and a metal mold including ferromagnetic central members and non-magnetic peripheral members is provided. With such an arrangement, the machine can anisotropically process magnet powder with enhanced efficiency by energizing the coils. Both the fixed plate 2 and the movable plate 4 of the machine are made of ferromagnetic metal. The exciting coils 7, 8 are respectively embedded into the plates at the oppositely disposed sides thereof along with the non-magnetic annular seats 9, 10 surrounding the respective exciting coils. The fixed mold 12 and the movable mold 13 of the metal mold 11 of the machine include respective central members 14, 15 made of ferromagnetic metal. The central members 14, 15 of the fixed and movable molds are respectively made to abut corresponding central portions 2a, 4a of the fixed plate 2 and the movable plate 4. The fixed 12 and the movable mold 13 of the metal mold 11 also include respective peripheral members 16, 17 secured respectively to the annular seats 9, 10 to anchor the metal mold 11 to the plates.

摘要翻译： 一种塑料磁体注射成型机，其特征在于，具备分别嵌入固定板和可动板以及相应的座的一对励磁线圈和包含铁磁中心构件和非磁性周边构件的金属模具。 通过这样的布置，机器可以通过对线圈通电来提高效率来各向异性地处理磁体粉末。 机器的固定板2和可动板4都由铁磁金属制成。 励磁线圈7,8分别与围绕相应的励磁线圈的非磁性环形座9,10嵌在其相对设置的侧面的板中。 机器的金属模具11的固定模具12和可移动模具13包括由铁磁金属制成的各自的中心构件14,15。 固定和可移动模具的中心构件14,15分别制成邻接固定板2和可移动板4的相对应的中心部分2a，4a。金属模具11的固定件12和活动模具13也包括相应的 周边构件16,17分别固定在环形座9,10上，以将金属模具11固定在板上。

公开(公告)号：US4878444A

公开(公告)日：1989-11-07

申请号：US188011

申请日：1988-04-29

申请人： Yasuro Sano ,  Akio Koide ,  Toru Hyodo ,  Fumihiko Kobayashi ,  Takayuki Kawasato ,  Yasuhiko Osanai

发明人： Yasuro Sano ,  Akio Koide ,  Toru Hyodo ,  Fumihiko Kobayashi ,  Takayuki Kawasato ,  Yasuhiko Osanai

IPC分类号： D05B3/06 ,  D05B19/12

CPC分类号： D05B19/12 ,  D05B3/06

摘要： An electronic zigzag sewing machine is provided with a presser foot including a switch lever pivotable between a first and second position. During buttonhole stitching operation the switch lever remains in the first position, but it is shifted to the second position when either one of longitudinal ends of a buttonhole is detected. A photo-sensor is mounted to the presser foot to output a detection signal when the switch lever is in the second position. A pattern number designating a specific stitch pattern of the buttonhole stitches is renewed to the next in response to the detection signal from the photo-sensor. A control system is provided to nullify operation of the photo-sensor during production of bar tacks of the buttonhole stitches so that the pattern number is not renewed in areas of the bar tacks irrespective of output of the detection signal.

摘要翻译： 一种电子锯齿缝纫机设置有压脚，该压脚包括可在第一和第二位置之间转动的开关杆。 在扣眼缝合操作期间，开关杆保持在第一位置，但是当检测到纽扣孔的纵向端部中的任何一个时，它移动到第二位置。 当开关杆处于第二位置时，光传感器安装到压脚以输出检测信号。 响应于来自光传感器的检测信号，指定针孔针迹的特定针迹图案的图案号更新为下一个。 提供了一种控制系统，用于在生产扣眼针迹的条形钉期间使光电传感器的操作无效，使得在条形接头的区域中不更新图案编号，而与检测信号的输出无关。

公开(公告)号：US06403986B1

公开(公告)日：2002-06-11

申请号：US09027012

申请日：1998-02-18

申请人： Fumihiko Kobayashi ,  Takeo Miyazawa ,  Hidefumi Mori ,  Jun-ichi Nakano

发明人： Fumihiko Kobayashi ,  Takeo Miyazawa ,  Hidefumi Mori ,  Jun-ichi Nakano

IPC分类号： H01L29205

CPC分类号： H01S5/18347 ,  G02B6/125 ,  G02B2006/12121 ,  G02B2006/12123 ,  G02B2006/12147 ,  G02B2006/1215 ,  G02B2006/12159 ,  G02B2006/12176 ,  G02B2006/12178 ,  G02F1/025 ,  G02F1/2257 ,  H01L27/15 ,  H01L33/0062 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0425 ,  H01S5/0609 ,  H01S5/065 ,  H01S5/10 ,  H01S5/183 ,  H01S5/1835 ,  H01S5/2201 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/2275 ,  H01S5/2277 ,  H01S5/3202 ,  H01S5/4056 ,  H01S5/423 ,  H01S5/50 ,  H01S2301/176

摘要： An optical semiconductor device includes an optical semiconductor element, a semiconductor region, and a buried layer. The optical semiconductor element is formed on a semiconductor substrate. The semiconductor region opposes the optical semiconductor element and essentially surrounds the optical semiconductor element to form walls. The buried layer is arranged between the walls of the semiconductor region and the optical semiconductor element and formed by vapor phase epitaxy. In this optical semiconductor device, a distance between the wall of the semiconductor region and a side wall of the optical semiconductor element is larger in a portion in which the growth rate of the vapor phase epitaxy in a horizontal direction from the side wall of the optical semiconductor element and the wall of the semiconductor region is higher.

公开(公告)号：US06367266B1

公开(公告)日：2002-04-09

申请号：US09362801

申请日：1999-07-28

申请人： Kazuhiko Kobayashi ,  Kazunori Yamanaka ,  Akihiko Akasegawa ,  Yoshiharu Tozawa ,  Fumihiko Kobayashi ,  Ichiro Abeno

发明人： Kazuhiko Kobayashi ,  Kazunori Yamanaka ,  Akihiko Akasegawa ,  Yoshiharu Tozawa ,  Fumihiko Kobayashi ,  Ichiro Abeno

IPC分类号： F25B1900

CPC分类号： F16L59/16 ,  F17C3/085 ,  F17C2203/0687 ,  F17C2270/0509

摘要： A heat insulation chamber according to the present invention is a heat insulation chamber which is made of heat insulating material and forms an inner chamber for accommodating an electronic part. This heat insulation chamber achieves coupling between the electronic part accommodated in the inner chamber formed within a cabinet and the outside of the cabinet by a radio transmission path or a coupling path by static coupling or inductive coupling. A thermostatic chamber and a cryostat according to the present invention comprise the aforementioned heat insulation chamber, a heat exchanger mounted in the heat insulation chamber, and a thermoregulator which maintains the temperature of the inner chamber accommodating the electronic part at an operating temperature of the electronic part through the heat exchanger. Equipments which adopt any heat insulation chambers, thermostatic chambers, or cryostats can be maintained so to have desired characteristics in a stable condition and accurately with their physical size kept from increasing greatly.

摘要翻译： 根据本发明的隔热室是由绝热材料制成并形成用于容纳电子部件的内室的绝热室。该隔热室实现容纳在形成在内部的内室中的电子部件之间的联接 机柜和机柜的外部，通过静电耦合或电感耦合通过无线电传输路径或耦合路径。本发明的恒温室和低温恒温器包括上述隔热室，安装在隔热室中的热交换器 以及通过热交换器将容纳电子部件的内室的温度保持在电子部件的工作温度的温度调节器。可以保持采用任何隔热室，恒温室或低温恒温器的装置，从而具有期望的特性 在稳定的条件下，准确地wi 他们的身体尺寸不断增加。