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11. 发明授权

US07042283B2 High-efficiency linear power amplifier 有权
标题翻译：高效线性功率放大器
公开(公告)号：US07042283B2
公开(公告)日：2006-05-09
申请号：US10806245
申请日：2004-03-23
申请人： Yasunori Suzuki , Shinji Mizuta , Tetsuo Hirota , Yasushi Yamao
发明人： Yasunori Suzuki , Shinji Mizuta , Tetsuo Hirota , Yasushi Yamao
IPC分类号： H03F3/66
CPC分类号： H03F3/24 , H03F1/0288 , H03F1/3258 , H03F2200/393
摘要： A transmission signal and a pilot signal are predistorted by a digital predistorter 13 by use of a power-series model, and the predistorted output is converted by a digital-analog converter 14 to an analog signal. The analog signal is up converted by a frequency converter 15 to an RF-band signal, which is transmitted after being power-amplified by a Doherty amplifier 16. The pilot signal is extracted by a pilot signal extractor 17 from the output from the Doherty amplifier, and the extracted pilot signal is down converted by a frequency converter 18 to a baseband signal. The baseband pilot signal is converted by an analog-digital converter 19 to a digital pilot signal. A control part 21 detects an odd-order distortion component from the digital pilot signal, and based on the detected result, controls parameters of the digital predistorter.
摘要翻译：传输信号和导频信号由数字预失真器13通过使用功率系列模型进行预失真，并且预失真输出由数模转换器14转换为模拟信号。模拟信号由频率转换器15上变频到RF带信号，该信号在由Doherty放大器16进行功率放大后传输。导频信号由导频信号提取器17从Doherty放大器的输出提取，并且提取的导频信号由频率转换器18下变频到基带信号。基带导频信号由模拟数字转换器19转换成数字导频信号。控制部分21从数字导频信号中检测奇数失真分量，并根据检测结果控制数字预失真器的参数。

12. 发明申请

US20050030104A1 Power amplifier 失效
标题翻译：功率放大器
公开(公告)号：US20050030104A1
公开(公告)日：2005-02-10
申请号：US10912116
申请日：2004-08-06
申请人： Ning Chen , Yasunori Suzuki , Tetsuo Hirota , Yasushi Yamao
发明人： Ning Chen , Yasunori Suzuki , Tetsuo Hirota , Yasushi Yamao
IPC分类号： H03F1/32 , H03F1/02 , H03F3/20 , H03F3/217 , H03F3/24 , H03F3/68 , H03F3/72
CPC分类号： H03F3/72 , H03F1/0277 , H03F3/2178 , H03F2200/75
摘要： A power amplifier (1) for receiving and amplifying an input signal (10) and outputting an output signal (11) is disclosed. The power amplifier comprises: N power amplifying units (12) (N is an integer larger than 1) connected in parallel so as to output amplified signals in response to the input signal (10); an output combining unit (14) for combining the output signals from the N power amplifying units (12) and outputting a combined signal as the output signal (11) of the power amplifier; and an amplitude controlling unit (15) for selectively turning ON each of the N power amplifying units (12) based on an amplitude of the input signal (10). In the power amplifier, the amplitude controlling unit (15) may comprise N amplitude adjusters (113) connected in parallel for adjusting the amplitude of the input signal (110) of the power amplifier; and a controller (115) for selectively turning ON each of the N power amplifying units (112) and controlling the amplitude adjusters (113) so that an amplitude of the output signal (111) becomes a substantially continuous function with respect to the amplitude of the input signal (110). The power amplifier may further comprise a local oscillator (222) outputting an constant envelope signal, receiving a modulation signal (210) as the input signal of the power amplifier and outputting an amplified modulated signal (211) as the output signal of the power amplifier; wherein the N power amplifying units comprise N saturation amplifying units connected in parallel so as to amplify the constant envelope signal from the local oscillator; and the amplitude controlling unit comprises an amplifying controller (215) for selectively turning ON each of the N saturation amplifying units (212) based on an amplitude of the modulation signal (210).
摘要翻译：公开了一种用于接收和放大输入信号（10）并输出输出信号（11）的功率放大器（1）。功率放大器包括：并联连接的N个功率放大单元（12）（N是大于1的整数），以响应输入信号（10）输出放大的信号; 输出组合单元（14），用于组合来自N个功率放大单元（12）的输出信号并输出组合信号作为功率放大器的输出信号（11）; 以及用于基于所述输入信号（10）的幅度选择性地接通所述N个功率放大单元（12）中的每一个的振幅控制单元（15）。在功率放大器中，振幅控制单元（15）可以包括并联连接的N个振幅调节器（113），用于调节功率放大器的输入信号（110）的振幅; 以及控制器（115），用于选择性地接通N个功率放大单元（112）中的每一个并且控制幅度调节器（113），使得输出信号（111）的幅度相对于输入信号（110）。功率放大器还可以包括输出恒定包络信号的本地振荡器（222），接收作为功率放大器的输入信号的调制信号（210），并输出放大的调制信号（211）作为功率放大器的输出信号 ; 其中所述N个功率放大单元包括并联连接的N个饱和放大单元，以便放大来自本地振荡器的恒定包络信号; 并且幅度控制单元包括放大控制器（215），用于基于调制信号（210）的幅度有选择地接通N个饱和放大单元（212）中的每一个。

13. 发明授权

US5503547A Apparatus for continuously manufacturing corrugated sheet 失效
标题翻译：用于连续制造瓦楞纸的设备
公开(公告)号：US5503547A
公开(公告)日：1996-04-02
申请号：US422768
申请日：1995-04-14
申请人： Toshio Funahashi , Koshirou Kitada , Masayoshi Oguri , Tetsuo Hirota , Yoshio Hori , Toshihiko Matsubara
发明人： Toshio Funahashi , Koshirou Kitada , Masayoshi Oguri , Tetsuo Hirota , Yoshio Hori , Toshihiko Matsubara
IPC分类号： B29C53/28 , B29L16/00 , B31F1/24 , B29C53/22
CPC分类号： B31F1/245
摘要： An apparatus for continuously manufacturing a corrugated sheet having a varying fold width and also having fold lines extending either straight or in wavy or zig-zag fashion in a direction widthwise thereof. The apparatus includes upper and lower toothed rolls each made up of a group of toothed discs and having a circumferential groove defined between each neighboring toothed discs. At least one of the upper and lower toothed rolls is supported for adjustment in position relative to and in a direction towards and away from the other of the upper and lower toothed rolls. Upper and lower guide bars while extending in a direction parallel to the upper and lower toothed rolls are accommodated within the circumferential grooves for movement in a direction towards and away from each other over a distance corresponding to the height of each tooth of any one of the upper and lower toothed rolls. During a continuous passage of the web of sheet through a biting region defined between the upper and lower toothed rolls, the web of sheet is alternately folded by the interaction between the upper and lower toothed rolls to provide the corrugated sheet.
摘要翻译：一种用于连续制造具有变化的折叠宽度的波纹片的装置，并且还具有在其宽度方向上以直线或波纹形或锯齿形方式延伸的折叠线。该装置包括上和下齿轮，每个齿由一组齿盘组成，并且在每个相邻的齿盘之间具有限定的周向槽。上齿轮和下齿轮中的至少一个被支撑用于相对于上下齿轮中的另一个和/或另一个齿轮的朝向和远离的方向调节就位。上下导轨在平行于上，下齿轮的方向上延伸的同时被容纳在周向凹槽中，用于在相对于任何一个的每个齿的每个齿的高度方向上彼此移动一个方向上下齿轮。在片材网连续通过限定在上齿轮和下齿轮之间的咬合区域的同时，通过上齿轮和下齿轮之间的相互作用交替地折叠纸幅，以提供波纹片。

14. 发明授权

US07774034B2 Signal switching device 有权
标题翻译：信号开关装置
公开(公告)号：US07774034B2
公开(公告)日：2010-08-10
申请号：US11693402
申请日：2007-03-29
申请人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
发明人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
IPC分类号： H01B12/02 , H01L39/12 , H01P1/10 , H03K17/92
CPC分类号： H01P1/127 , H01P1/15 , Y10S505/701 , Y10S505/703 , Y10S505/856 , Y10S505/866
摘要： A signal switching device including a plurality of transmission paths connected to an input path, the signal switching device outputting a signal from the input path through one of the transmission paths, including a first variable impedance unit connected to a first transmission path, the first variable impedance unit including a first section formed from a superconducting material, the first section being set to a non-superconducting state when the signal is to be output through a second transmission path, the first section including a portion of a predetermined length at an input end, the portion having an area of a cross section less than an area of a cross section of the first section at an output end.
摘要翻译：一种信号切换装置，包括连接到输入路径的多个传输路径，所述信号切换装置通过所述传输路径中的一个输入来自所述输入路径的信号，所述信号切换装置包括连接到第一传输路径的第一可变阻抗单元，所述第一变量阻抗单元，包括由超导材料形成的第一部分，当所述信号将通过第二传输路径输出时，所述第一部分被设置为非超导状态，所述第一部分包括在输入端的预定长度的一部分，所述部分具有在输出端处小于所述第一部分的横截面的横截面的面积。

15. 发明申请

US20070230450A1 SIGNAL SWITCHING DEVICE 有权
标题翻译：信号切换装置
公开(公告)号：US20070230450A1
公开(公告)日：2007-10-04
申请号：US11693402
申请日：2007-03-29
申请人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
发明人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
IPC分类号： H04Q11/00
CPC分类号： H01P1/127 , H01P1/15 , Y10S505/701 , Y10S505/703 , Y10S505/856 , Y10S505/866
摘要： A signal switching device including a plurality of transmission paths connected to an input path, the signal switching device outputting a signal from the input path through one of the transmission paths, including a first variable impedance unit connected to a first transmission path, the first variable impedance unit including a first section formed from a superconducting material, the first section being set to a non-superconducting state when the signal is to be output through a second transmission path, the first section including a portion of a predetermined length at an input end, the portion having an area of a cross section less than an area of a cross section of the first section at an output end.
摘要翻译：一种信号切换装置，包括连接到输入路径的多个传输路径，所述信号切换装置通过所述传输路径中的一个输入来自所述输入路径的信号，所述信号切换装置包括连接到第一传输路径的第一可变阻抗单元，所述第一变量阻抗单元，包括由超导材料形成的第一部分，当所述信号将通过第二传输路径输出时，所述第一部分被设置为非超导状态，所述第一部分包括在输入端的预定长度的一部分，所述部分具有在输出端处小于所述第一部分的横截面的横截面的面积。

16. 发明授权

US07072409B2 Space multiplex radio communication method and radio communication apparatus 失效
公开(公告)号：US07072409B2
公开(公告)日：2006-07-04
申请号：US09861717
申请日：2001-05-22
申请人： Yasunori Suzuki , Tetsuo Hirota , Toshio Nojima
发明人： Yasunori Suzuki , Tetsuo Hirota , Toshio Nojima
IPC分类号： H04L27/00
CPC分类号： H04B7/0854
摘要： A radio communication system is comprised of: a transmitting system in which N transmission signals, frequency-converted to the same transmission frequency, are generated by N transmitters, N being an integer equal to or greater than 2, and the transmission signals are each applied to each one of N elements of an antenna for transmission; and a receiving system in which each transmitted signal is received by N-element antenna and the cross correlation coefficient between the transmitted signals received by the N-elements is minimized to thereby reconstruct each transmitted signal. The plural transmitted signals of the same frequency are received and the cross correlation coefficients of the received transmitted signals are minimized to thereby permit multiplexing of the transmission signal.

17. 发明授权

US06515544B1 Multi-terminal power combining feed-forward amplifier 有权
标题翻译：多端功率组合前馈放大器
公开(公告)号：US06515544B1
公开(公告)日：2003-02-04
申请号：US09850733
申请日：2001-05-17
申请人： Yasunori Suzuki , Tetsuo Hirota , Toshio Nojima
发明人： Yasunori Suzuki , Tetsuo Hirota , Toshio Nojima
IPC分类号： H03F100
CPC分类号： H03F3/24 , H01Q3/26 , H01Q3/40 , H03F1/3235 , H03F3/211 , H03F3/602 , H04B1/00 , H04B1/04
摘要： A feed-forward amplifier configuration 40n having a distortion detector circuit and a distortion canceller circuit is formed between an input port Ipn and an output port OPn of a multi-terminal power-combining power amplifier with a main amplifier 4M provided for each channel between an input-side multi-terminal power combiner 3 and an output-side multi-terminal power combiner 5.
摘要翻译：具有失真检测器电路和失真消除电路的前馈放大器配置40n形成在多端子功率合成功率放大器的输入端口Ipn和输出端口OPn之间，其具有为每个通道设置的主放大器4M 输入侧多端子功率合成器3和输出侧多端子功率合成器5。

18. 发明授权

US07307045B2 Signal switching device 有权
标题翻译：信号开关装置
公开(公告)号：US07307045B2
公开(公告)日：2007-12-11
申请号：US10702573
申请日：2003-11-07
申请人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
发明人： Kunihiro Kawai , Daisuke Koizumi , Kei Satoh , Shoichi Narahashi , Tetsuo Hirota
IPC分类号： H01B12/02 , H01L39/12 , H04B1/00
CPC分类号： H01P1/127 , H01P1/15 , Y10S505/701 , Y10S505/703 , Y10S505/856 , Y10S505/866
摘要： A signal switching device is disclosed that is capable of transmitting signals with less signal loss while securing a good isolation characteristic. The signal switching device includes a first section formed from a superconducting material connected to a first transmission path. The first section has a smaller cross section at the input end than at the output end or, the signal switching device may include a first section formed from a superconducting material connected to a first transmission path in series, and a second section formed from a superconducting material connected to a second transmission path in parallel. The cross section of the second section is smaller than that of the second transmission path. The length of the second transmission path is determined in such a way that an input impedance of the second transmission path is sufficiently large when the second section is in a superconducting state.
摘要翻译：公开了一种信号切换装置，其能够在确保良好隔离特性的同时传输信号损失较少的信号。信号切换装置包括由连接到第一传输路径的超导材料形成的第一部分。第一部分在输入端处具有比在输出端处更小的横截面，或者信号切换装置可以包括由连接到串联的第一传输路径的超导材料形成的第一部分，以及由超导连接到第二传输路径的材料并联。第二部分的横截面小于第二传输路径的横截面。第二传输路径的长度被确定为当第二部分处于超导状态时第二传输路径的输入阻抗足够大。

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