公开(公告)号：US07660027B2

公开(公告)日：2010-02-09

申请号：US11935744

申请日：2007-11-06

申请人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

发明人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

IPC分类号： G02B1/07

CPC分类号： G02F1/225 ,  G02F1/0123 ,  G02F2001/212

摘要： An optical modulator comprises an electrode 21 which applies to an optical waveguides 12 of a Mach-Zehnder type optical interference system a first electric signal based on an alternating current signal S1 and a direct current bias V1, an electrode 22 which applies to an optical waveguide 13 of the Mach-Zehnder type optical interference system a second electric signal based on an alternating current signal S2 and a direct current bias V2, and a bias setting section 41 which sets average direct current levels of the first and second electric signals based on signal frequency information D1 which indicates a magnitude relation between a maximum frequency of the alternating current signal S1 and a maximum frequency of the alternating current signal S2.

摘要翻译： 光调制器包括电极21，该电极施加到马赫 - 曾德尔型光学干涉系统的光波导12，基于交流信号S1和直流偏压V1的第一电信号，适用于光波导的电极22 马赫曾德尔型光干涉系统13基于交流信号S2和直流偏压V2的第二电信号，以及偏置设定部41，其基于信号设定第一和第二电信号的平均直流电平 表示交流信号S1的最大频率与交流信号S2的最大频率之间的大小关系的频率信息D1。

公开(公告)号：US20120188985A1

公开(公告)日：2012-07-26

申请号：US13430218

申请日：2012-03-26

申请人： Takefumi MIYAMOTO ,  Fumio FUJISAKI

发明人： Takefumi MIYAMOTO ,  Fumio FUJISAKI

IPC分类号： H04W92/10 ,  H04W36/00 ,  H04L12/56

CPC分类号： H04W92/12 ,  H04W92/20

摘要： A mobile communication system includes a cell that is constituted by connecting a wireless apparatus control apparatus and a wireless apparatus that are included in a wireless base station by using a predetermined interface. A first wireless apparatus that constitutes a first cell and a second wireless apparatus that constitutes a second cell different from the first cell and that is adjacent to the first wireless apparatus are connected by using the predetermined interface in order to perform data communication.

摘要翻译： 移动通信系统包括通过使用预定接口连接无线基站中包括的无线装置控制装置和无线装置构成的小区。 构成第一小区的第一无线装置和构成与第一小区不同的第二小区并且与第一无线装置相邻的第二无线装置通过使用预定接口连接以进行数据通信。

公开(公告)号：US20080106780A1

公开(公告)日：2008-05-08

申请号：US11935744

申请日：2007-11-06

申请人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

发明人： Tsutomu Niiho ,  Kouichi Masuda ,  Masaru Fuse ,  Fumio Fujisaki ,  Kuniharu Itakura ,  Tomoaki Ohira

IPC分类号： G02F1/03

CPC分类号： G02F1/225 ,  G02F1/0123 ,  G02F2001/212

摘要： An optical modulator comprises an electrode 21 which applies to an optical waveguides 12 of a Mach-Zehnder type optical interference system a first electric signal based on an alternating current signal S1 and a direct current bias V1, an electrode 22 which applies to an optical waveguide 13 of the Mach-Zehnder type optical interference system a second electric signal based on an alternating current signal S2 and a direct current bias V2, and a bias setting section 41 which sets average direct current levels of the first and second electric signals based on signal frequency information D1 which indicates a magnitude relation between a maximum frequency of the alternating current signal S1 and a maximum frequency of the alternating current signal S2.

摘要翻译： 光调制器包括电极21，电极21基于交流电信号S1和直流偏压V 1施加马赫 - 策德尔型光学干涉系统的光波导12，第一电信号适用于 马赫曾德尔型光学干涉系统的光波导13基于交流信号S 2和直流偏压V 2的第二电信号，以及偏置设定部41，其设定第一和第二电气的平均直流电平 基于表示交流信号S 1的最大频率与交流信号S2的最大频率之间的大小关系的信号频率信息D 1的信号。

公开(公告)号：US06859116B2

公开(公告)日：2005-02-22

申请号：US10209526

申请日：2002-07-30

申请人： Michiaki Nishimura ,  Fumio Fujisaki ,  Hirotaka Tsuyoshi

发明人： Michiaki Nishimura ,  Fumio Fujisaki ,  Hirotaka Tsuyoshi

IPC分类号： H03H9/02 ,  H03H9/17 ,  H03H9/00

CPC分类号： H03H9/0207 ,  H03H9/177

摘要： A piezoelectric resonator comprising a piezoelectric substrate having a tapered portion as viewed from the side thereof, and drive electrodes provided on both opposing tapered surfaces of said tapered portion. The piezoelectric resonator corrects the dispersion in the thickness of the piezoelectric substrate relying upon the positions where the drive electrodes are formed, and makes it easy to finely adjust he frequency for compensating the dispersion in the thickness.

摘要翻译： 一种压电谐振器，包括从侧面看具有锥形部分的压电基片和设置在所述锥形部分的两个相对的锥形表面上的驱动电极。 压电谐振器根据形成驱动电极的位置校正压电基板的厚度的分散，并且容易微调其频率以补偿厚度的分散。