专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20080144338A1 DC/DC converter, and power amplifier applying the same 失效
标题翻译： DC / DC转换器和应用它的功率放大器
公开(公告)号：US20080144338A1
公开(公告)日：2008-06-19
申请号：US12005380
申请日：2007-12-27
申请人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
发明人： Takeshi Takano , Yasuyuki Oishi , Tokuro Kubo , Toru Maniwa
IPC分类号： H02M3/335 , H03G9/00
CPC分类号： H03F1/0227 , H02M3/3372 , H03F3/20 , H03F2200/228 , H03F2200/504
摘要： A DC/DC converter capable of controlling an output signal using a broadband signal input is provided. By employing the above DC/DC converter as a power supply, a highly efficient power amplifier can be configured. The above DC/DC converter includes two class-C amplifiers, a rectifier circuit connected between each output of the two class-C amplifiers, and an oscillator of a predetermined frequency signal. The predetermined frequency signal output from the oscillator is input to each of the two class-C amplifiers, and by controlling the phase difference of the predetermined frequency signal input to the two class-C amplifiers, the magnitude of a direct current voltage output from the rectifier circuit is made variable.
摘要翻译：提供了能够使用宽带信号输入来控制输出信号的DC / DC转换器。通过采用上述DC / DC转换器作为电源，可以配置高效的功率放大器。上述DC / DC转换器包括两个C类放大器，连接在两个C类放大器的每个输出端之间的整流器电路和预定频率信号的振荡器。从振荡器输出的预定频率信号被输入到两个C类放大器中的每一个，并且通过控制输入到两个C类放大器的预定频率信号的相位差，从整流电路是可变的。

42. 发明申请

US20080094139A1 Power amplifier with distortion compensation circuit 有权
标题翻译：具有失真补偿电路的功率放大器
公开(公告)号：US20080094139A1
公开(公告)日：2008-04-24
申请号：US12000616
申请日：2007-12-14
申请人： Takeshi Takano , Yasuyuki Oishi , Toru Maniwa
发明人： Takeshi Takano , Yasuyuki Oishi , Toru Maniwa
IPC分类号： H03F1/26
CPC分类号： H03F1/3247 , H03F1/30 , H03F1/3282 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233
摘要： A power amplifier negates a memory effect and is applied a linearizer using a digital predistortion system even in an inexpensive device. The power amplifier compares an input signal power against a sampled component of an output power, and provides predistortion to the input signal power so as to minimize a difference as a result of the comparison. The power amplifier comprises a gain lookup table storing a gain coefficient value corresponding to a temperature address determined for an input power; a phase lookup table storing a phase coefficient value corresponding to the temperature address determined for the input power; a transversal filter, which is input with the input power, and which outputs the temperature address; and a coefficient multiplier modulating the input signal using a gain coefficient value and a phase coefficient value, which correspond to the temperature address and which are read out from the gain coefficient lookup table and the phase lookup table.
摘要翻译：功率放大器消除了记忆效应，并且即使在廉价的设备中也使用数字预失真系统应用线性化。功率放大器将输入信号功率与输出功率的采样分量进行比较，并且为输入信号功率提供预失真，以便作为比较的结果使差异最小化。功率放大器包括：增益查找表，其存储对应于为输入功率确定的温度地址的增益系数值; 相位查找表，存储与为输入功率确定的温度地址对应的相位系数值; 横向滤波器，其输入有输入功率，并输出温度地址; 以及系数乘法器，其使用与所述温度地址对应并且从所述增益系数查找表和所述相位查找表读出的增益系数值和相位系数值来调制所述输入信号。

43. 发明申请

US20070232246A1 Transmitter and power amplifying method 有权
标题翻译：发射机和功率放大方法
公开(公告)号：US20070232246A1
公开(公告)日：2007-10-04
申请号：US11476695
申请日：2006-06-29
申请人： Alexander Lozhkin , Takeshi Takano
发明人： Alexander Lozhkin , Takeshi Takano
IPC分类号： H04B1/02
CPC分类号： H03C5/00 , H03F3/189 , H03F3/68 , H04L27/2623
摘要： A transmitter includes a first limiter for performing a first clipping in which an amplitude part at a level higher than an amplitude level based on a first clipping level is cut out from an input signal to be subjected to power amplification, a second limiter for performing a second clipping in which an amplitude part at a level lower than the amplitude level based on a second clipping level is cut out from a first signal that has undergone the first clipping, a separation section for separating a second signal that has undergone the second clipping into an amplitude modulated part and a constant amplitude part, a first amplifier for amplifying the amplitude modulated part, a second amplifier for amplifying the constant amplitude part, and a combiner for outputting a third signal obtained by combining the amplitude part amplified by the first amplifier and the constant amplitude part amplified by the second amplifier.
摘要翻译：发射机包括用于执行第一限幅的第一限幅器，其中根据要进行功率放大的输入信号切除基于第一限幅电平的高于幅度电平的电平的振幅部分;第二限幅器，用于执行第二限幅，其中从基于第二限幅电平的低于幅度电平的电平的幅度部分从已经经历第一限幅的第一信号中切出;分离部分，用于将经过第二限幅的第二信号分离成幅度调制部分和恒定幅度部分，用于放大调幅部分的第一放大器，用于放大恒幅部分的第二放大器和用于输出通过将由第一放大器放大的幅度部分组合而获得的第三信号和由第二放大器放大的恒幅部分。

44. 发明申请

US20060283713A1 SELECTIVE PLATING APPARATUS AND SELECTIVE PLATING METHOD 有权
标题翻译：选择性镀层设备和选择性镀层方法
公开(公告)号：US20060283713A1
公开(公告)日：2006-12-21
申请号：US11419904
申请日：2006-05-23
申请人： Yoko Ogihara , Takeshi Takano , Kazuo Nakabayashi
发明人： Yoko Ogihara , Takeshi Takano , Kazuo Nakabayashi
IPC分类号： C25D5/02
CPC分类号： C25D5/022 , C25D17/02 , H01L2924/0002 , H01L2924/00
摘要： A selective plating apparatus for applying selective electrolytic plating to a metal member includes: a mask member having a recess portion so that a space is formed to which predetermined parts of a surface of the metal member are exposed when the mask member is attached to the metal member, and having at least one supply opening for supplying electrolytic plating solution into the space and a discharge opening for discharging the electrolytic plating solution from the space both formed in a bottom portion of the recess portion; and at least one injection nozzle which injects the electrolytic plating solution in an oblique direction with respect to the predetermined parts of the surface of the metal member, and is arranged in vicinity of the supply opening.
摘要翻译：一种用于向金属构件施加选择性电镀的选择性电镀装置包括：掩模构件，具有凹部，使得当掩模构件附接到金属时，形成金属构件的表面的预定部分露出的空间并且具有至少一个用于向该空间供应电解电镀液的供给开口和用于从形成在凹部的底部的空间排出电解镀液的排出口; 以及至少一个注射喷嘴，其相对于金属构件的表面的预定部分沿倾斜方向注入电解镀液，并且布置在供应开口附近。

45. 发明授权

US5870668A Amplifier having distortion compensation and base station for radio communication using the same 失效
标题翻译：具有失真补偿的放大器和使用其的无线电通信基站
公开(公告)号：US5870668A
公开(公告)日：1999-02-09
申请号：US688443
申请日：1996-07-30
申请人： Takeshi Takano , Yasuyuki Oishi , Eisuke Fukuda , Hideto Furukawa , Kazuo Nagatani
发明人： Takeshi Takano , Yasuyuki Oishi , Eisuke Fukuda , Hideto Furukawa , Kazuo Nagatani
IPC分类号： H03D7/16 , H03F1/32 , H04B7/0005
CPC分类号： H03D7/168 , H03F1/3241 , H03F2200/372
摘要： A amplifier having distortion compensation is employed as a power amplifier for amplifying a linear modulated signal or a low noise amplifier for amplifying a linear modulated signal. The amplifier having distortion compenssation includes an amplifier circuit for amplifying an input signal; an error detecting circuit for obtaining an error signal between the input signal to and an output signal from the amplifier circuit; a coefficient generating circuit for generating compensation coefficients to compensate distortion components of characteristics of the amplifier circuit, based on the error signal according to an adaptive type algorithm; a first outputting circuit for outputting a generated compensation coefficient corresponding to the input signal; and a multiplying circuit for multiplying the generated compensation coefficient to the input signal and inputting a multiplied coefficient to the amplifier circuit.
摘要翻译：使用具有失真补偿的放大器作为用于放大线性调制信号的功率放大器或用于放大线性调制信号的低噪声放大器。具有失真补偿的放大器包括用于放大输入信号的放大器电路; 用于获得来自放大器电路的输入信号与输出信号之间的误差信号的误差检测电路; 系数产生电路，用于根据自适应型算法产生补偿系数以补偿放大器电路的特性的失真分量; 第一输出电路，用于输出与输入信号对应的产生的补偿系数; 以及乘法电路，用于将所生成的补偿系数与输入信号相乘，并将乘法系数输入到放大器电路。

46. 发明授权

US4418985A Multi-component glass optical fiber for optical communication 失效
标题翻译：用于光通信的多组件玻璃光纤
公开(公告)号：US4418985A
公开(公告)日：1983-12-06
申请号：US382286
申请日：1982-05-26
申请人： Mituo Kasori , Takeshi Takano , Hironori Maki , Naohiko Ogino
发明人： Mituo Kasori , Takeshi Takano , Hironori Maki , Naohiko Ogino
IPC分类号： C03C3/00 , C03C3/064 , C03C3/091 , C03C13/04 , G02B6/00 , C03C3/08 , C03C13/00 , G02B5/14
CPC分类号： C03C13/046 , Y10S501/903
摘要： There is provided a multi-component system glass fiber for optical communication which comprises a multi-component system glass for core having a composition comprising SiO.sub.2, BaO, Al.sub.2 O.sub.3, B.sub.2 O.sub.3, at least one alkali metal oxide selected from Na.sub.2 O, K.sub.2 O and Li.sub.2 O, MgO and CaO in amounts as specified in the specification and claims, and a multi-component system glass for clad layer having a composition comprising SiO.sub.2, Al.sub.2 O.sub.3, B.sub.2 O.sub.3, Na.sub.2 O, K.sub.2 O, Li.sub.2 O, at least one alkaline earth metal selected from MgO and CaO in amounts as specified in the specification and claims. The core in the glass fiber for optical communication according to the present invention shows lower optical loss and the clad layer shows high weathering resistance, and the glass fiber according to the present invention suffers from no devitrification during fiber drawing and is excellent in dimensional stability.
摘要翻译：提供了一种用于光通信的多组分系统玻璃纤维，其包括具有包含SiO 2，BaO，Al 2 O 3，B 2 O 3，至少一种选自Na 2 O，K 2 O和Li 2 O的碱金属氧化物，MgO，和CaO，以及包含SiO 2，Al 2 O 3，B 2 O 3，Na 2 O，K 2 O，Li 2 O，至少一种选自MgO和CaO中的碱土金属的组成的包层的多组分体系玻璃在说明书和权利要求书中指定的量。根据本发明的用于光通信的玻璃纤维的芯体显示出较低的光损耗，并且包覆层具有高的耐候性，并且根据本发明的玻璃纤维在纤维拉伸期间不会失透，并且尺寸稳定性优异。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式