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1. 发明授权

US07038557B2 Antenna duplexer and mobile communication device using the same 失效
公开(公告)号：US07038557B2
公开(公告)日：2006-05-02
申请号：US10085264
申请日：2002-02-27
申请人： Hiroyuki Nakamura , Toshio Ishizaki , Hisashi Adachi , Makoto Sakakura , Hiroaki Kosugi , Hiroyuki Itokawa , Toshiaki Nakamura
发明人： Hiroyuki Nakamura , Toshio Ishizaki , Hisashi Adachi , Makoto Sakakura , Hiroaki Kosugi , Hiroyuki Itokawa , Toshiaki Nakamura
IPC分类号： H03H7/46
CPC分类号： H04B1/0057 , H04B1/48 , H04B1/52
摘要： An antenna duplexer has an antenna terminal; a transmitting phase-shift circuit, one side of which is connected to the antenna terminal; a receiving phase-shift circuit, one side of which is connected to the antenna terminal; a transmitting filter connected to the other side of the transmitting phase-shift circuit and a transmitting terminal; and a receiving filter connected to the other side of the receiving phase-shift circuit and a receiving terminal; wherein the transmitting filter and/or the receiving filter is a composite filter, and the composite filter attains a characteristic having an attenuation pole at simultaneous transmission and reception time when transmission and reception are simultaneously performed, and controls respective impedances by the transmitting phase-shift circuit and the receiving phase-shift circuit to operate as a sharing unit and attains a characteristic where the attenuation pole is removed at non simultaneous transmission and reception time when transmission and reception are not performed simultaneously.

2. 发明授权

US06269253B1 Multi-mode wireless communication system 失效
标题翻译：多模式无线通信系统
公开(公告)号：US06269253B1
公开(公告)日：2001-07-31
申请号：US09162210
申请日：1998-09-28
申请人： Takaaki Maegawa , Hiroyuki Nakamura , Makoto Sakakura , Hiroaki Kosugi , Junichi Takada
发明人： Takaaki Maegawa , Hiroyuki Nakamura , Makoto Sakakura , Hiroaki Kosugi , Junichi Takada
IPC分类号： H04B138
CPC分类号： H04B1/0057 , H03D7/16 , H03D7/163 , H04B1/005 , H04B1/006 , H04B1/405 , H04B1/406
摘要： A multi-mode wireless system having a modulator (11) for modulating two system signals (low frequency signals for the GSM system and high frequency signals for the DCS1800 system), a first local oscillator (14) for oscillating a signal of a predetermined frequency, a n-divider (15) for dividing a signal from the first local oscillator by a factor of n, a high frequency mixer (13) for converting a signal to a high frequency side output (17) according to a signal output from the first local oscillator (14) and a signal output from the modulator (11), and a low frequency mixer (12) for outputting a signal to a low frequency mixer (16) according to an n-divided signal and a signal from the modulator (11).
摘要翻译：一种具有用于调制两个系统信号的调制器（11）的多模式无线系统（用于GSM系统的低频信号和用于DCS1800系统的高频信号），用于振荡预定频率的信号的第一本地振荡器（14），用于将来自第一本地振荡器的信号除以因子n的n分频器（15），用于根据从第一本地振荡器输出的信号将信号转换为高频侧输出（17）的高频混频器（13）第一本地振荡器（14）和从调制器（11）输出的信号，以及低频混频器（12），用于根据n分频信号和来自调制器的信号将信号输出到低频混频器（16）（11）。

3. 发明授权

US06459915B2 External adapter for a portable cellular phone 失效
标题翻译：用于便携式手机的外部适配器
公开(公告)号：US06459915B2
公开(公告)日：2002-10-01
申请号：US09162619
申请日：1998-09-29
申请人： Hiroyuki Nakamura , Makoto Sakakura , Takaaki Maegawa , Hiroaki Kosugi , Kenichi Takahashi
发明人： Hiroyuki Nakamura , Makoto Sakakura , Takaaki Maegawa , Hiroaki Kosugi , Kenichi Takahashi
IPC分类号： H04B138
CPC分类号： H04B1/3877
摘要： A portable celullar phone apparatus includes a portable cellular phone and an external adapter for a portable cellular phone. It is possible to suppress an increase in output power of a portable cellular phone transmit amplifier due to a loss at a transmit switch associated with use of an external transmitting antenna by coupling a first output of the transmit switch to a portable cellular phone transmit amplifier and coupling a second output of the transmit switch to an input of a transmit amplifier part of a portable cellular phone external adapter. Deterioration of a NF of a receiving system due to a loss at a receive switch when using an external receiving antenna may be reduced by coupling a first input of a receive switch to a portable cellular phone receive amplifier and coupling a second input of the receive switch to an output of a receive amplifier part of the portable cellular phone external adapter.
摘要翻译：一种便携式Celullar电话设备包括便携式蜂窝电话和用于便携式蜂窝电话的外部适配器。通过将发送开关的第一输出耦合到便携式蜂窝电话发送放大器，由于与使用外部发送天线相关联的发送开关处的损失，可以抑制便携式蜂窝电话发送放大器的输出功率的增加，以及将所述发射开关的第二输出耦合到便携式蜂窝电话外部适配器的发射放大器部分的输入端。可以通过将接收开关的第一输入耦合到便携式蜂窝电话接收放大器并且将接收开关的第二输入耦合来减少由于在使用外部接收天线时在接收开关处的损耗而导致的接收系统的NF的劣化到便携式蜂窝电话外部适配器的接收放大器部分的输出。

4. 发明授权

US07127215B2 Transmitting/receiving switch 失效
标题翻译：发射/接收开关
公开(公告)号：US07127215B2
公开(公告)日：2006-10-24
申请号：US09425668
申请日：1999-10-22
申请人： Hiroyuki Nakamura , Makoto Sakakura , Toshio Ishizaki , Jyunichi Yoshizumi
发明人： Hiroyuki Nakamura , Makoto Sakakura , Toshio Ishizaki , Jyunichi Yoshizumi
IPC分类号： H04B1/44 , H01P5/12
CPC分类号： H04B1/48
摘要： A transmitting/receiving switch, in which a transmission terminal connected to a transmission circuit is connected to an antenna terminal through a first switching element, a filter for attenuating harmonic contents in a transmission signal, a phase-shift circuit for significantly increasing an impedance from a node toward said transmission terminal in a reception frequency band by phase-adjusting the amount of phase shift by performing phase adjustment according to the amount of the phase shift generated by said filter. Furthermore, the antenna terminal connected to an antenna ANT is connected to a reception terminal through the node and a second switching element, and the reception terminal is connected to a reception circuit Rx.
摘要翻译：一种发送/接收开关，其中连接到发送电路的发送终端通过第一开关元件连接到天线端子，用于衰减发送信号中的谐波内容的滤波器，相移电路，用于显着增加来自通过根据由所述滤波器产生的相移量执行相位调整来相位调整相移量，从而在接收频带中向所述发送终端发送一个节点。此外，连接到天线ANT的天线端子通过节点和第二开关元件连接到接收终端，并且接收终端连接到接收电路Rx。

5. 发明授权

US07324493B2 3-frequency branching circuit, branching circuit and radio communication equipment 失效
标题翻译： 3频分支电路，分支电路和无线电通信设备
公开(公告)号：US07324493B2
公开(公告)日：2008-01-29
申请号：US10311915
申请日：2001-06-25
申请人： Toru Yamada , Tsutomu Matsumura , Toshio Ishizaki , Hiroyuki Nakamura , Kazuhide Uriu
发明人： Toru Yamada , Tsutomu Matsumura , Toshio Ishizaki , Hiroyuki Nakamura , Kazuhide Uriu
IPC分类号： H04B7/216
CPC分类号： H04B1/0057 , H01P1/15 , H04B1/005 , H04B1/006 , H04B1/406 , H04B1/44
摘要： A 3-frequency branching circuit in the past could not be used for a system wherein a TDMA method such as GSM and DCS and a W-CDMA method such as UMTS are mixed. The 3-frequency branching circuit equipped with branching means having first and second internal terminals, an antenna terminal of connecting to an antenna, a low-pass filter connected between the first internal terminal and the antenna terminal, and a high-pass filter connected between the second internal terminal and the antenna terminal, a switching circuit of switching between GSM TX and GSM RX, a switching circuit of switching between DCS TX, DCS RX and a third internal terminal, and a duplexer connected to the third internal terminal.
摘要翻译：过去的3频分支电路不能用于其中诸如GSM和DCS的TDMA方法和诸如UMTS的W-CDMA方法的系统混合。具有分支装置的3频分支电路具有第一和第二内部端子，连接到天线的天线端子，连接在第一内部端子和天线端子之间的低通滤波器以及连接在第一内部端子和天线端子之间的高通滤波器第二内部终端和天线终端，在GSM TX和GSM RX之间切换的切换电路，在DCS TX，DCS RX和第三内部终端之间切换的切换电路以及连接到第三内部终端的双工器。

6. 发明授权

US07224240B2 Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus 有权
标题翻译：平衡高频滤波器，天线双工器，平衡高频电路和通信设备
公开(公告)号：US07224240B2
公开(公告)日：2007-05-29
申请号：US11078793
申请日：2005-03-11
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H9/68 , H03H7/42
CPC分类号： H03H9/0042 , H03H7/42 , H03H9/0038 , H03H9/14588
摘要： With an antenna duplexer having balanced terminals, there has been a problem that the amount of leakage of common-mode signal components in the balanced terminals is large. A balanced high-frequency filter designed to solve this problem comprises a balanced high-frequency element and a phase-shifting circuit which includes a transmission line and placed between output terminals, and which is series resonance circuit having a length set to λT/2 (λT: the wavelength at a frequency in a transmission frequency band) and capable of resonating with common-mode signal components at a predetermined frequency.
摘要翻译：对于具有平衡端子的天线双工器，存在平衡端子中的共模信号分量的泄漏量大的问题。设计用于解决这个问题的平衡式高频滤波器包括一个平衡的高频元件和一个包括传输线并置于输出端之间的移相电路，并且是串联谐振电路，其长度设定为λ< Tλ/ 2（λT是发送频带中的频率处的波长），并且能够以预定频率与共模信号分量谐振。

7. 发明申请

US20070109073A1 Filter using piezoelectric resonator 失效
标题翻译：使用压电谐振器滤波
公开(公告)号：US20070109073A1
公开(公告)日：2007-05-17
申请号：US11582425
申请日：2006-10-18
申请人： Takehiko Yamakawa , Hiroshi Yamaguchi , Hiroshi Nakatsuka , Hiroyuki Nakamura , Keiji Onishi , Toshio Ishizaki
发明人： Takehiko Yamakawa , Hiroshi Yamaguchi , Hiroshi Nakatsuka , Hiroyuki Nakamura , Keiji Onishi , Toshio Ishizaki
IPC分类号： H03H9/70 , H03H9/58
CPC分类号： H03H9/605 , H03H9/25 , H03H9/542 , H03H9/6483 , H03H9/6493
摘要： A series piezoelectric resonator 11 is connected in series between an input terminal 15a and an output terminal 15b. A first electrode of a parallel piezoelectric resonator 12a is connected to a connection point between the input terminal 15a and the series piezoelectric resonator 11, and a second electrode of the parallel piezoelectric resonator 12a is connected to a first terminal of an inductor 13a. A first electrode of a parallel piezoelectric resonator 12b is connected to a connection point between the series piezoelectric resonator 11 and the output terminal 15b, and a second electrode of the parallel piezoelectric resonator 12b is connected to a first terminal of an inductor 13b. Second terminals of the inductors 13a and 13b are grounded. An additional piezoelectric resonator 14 is connected between the second electrode of the parallel piezoelectric resonator 12a and the second electrode of the parallel piezoelectric resonator 12b.
摘要翻译：串联压电谐振器11串联连接在输入端子15a和输出端子15b之间。平行压电谐振器12a的第一电极连接到输入端子15a和串联压电谐振器11之间的连接点，并联压电谐振器的第二电极连接到电感器13的第一端子一个。平行压电谐振器12b的第一电极连接到串联压电谐振器11和输出端子15b之间的连接点，并联压电谐振器12b的第二电极连接到电感器13的第一端子 b。电感器13a和13b的第二端接地。并联压电谐振器12a的第二电极和并联压电谐振器12b的第二电极之间连接有一个附加的压电谐振器14。

8. 发明申请

US20060022773A1 Filter, high-frequency module, communication device and filtering method 审中-公开
标题翻译：滤波器，高频模块，通讯装置及滤波方法
公开(公告)号：US20060022773A1
公开(公告)日：2006-02-02
申请号：US11204185
申请日：2005-08-15
申请人： Tomohiro Iwasaki , Hiroyuki Nakamura , Toshio Ishizaki , Kazuhide Uriu
发明人： Tomohiro Iwasaki , Hiroyuki Nakamura , Toshio Ishizaki , Kazuhide Uriu
IPC分类号： H01P1/203
CPC分类号： H01P1/20345
摘要： A filter having an unbalanced terminal, a first stripline resonator of which one end is connected to the unbalanced terminal, a second stripline resonator placed to be electromagnetically coupled to the first stripline resonator, and balanced terminals of which both ends are connected to the second stripline resonator, wherein the first stripline resonator and the second stripline resonator are connected by at least one impedance element, and the second stripline resonator is a ½ wavelength resonator substantially having ½ the length of a wavelength of a resonance frequency.
摘要翻译：具有不平衡端子的滤波器，其一端连接到不平衡端子的第一带状线谐振器，与第一带状线谐振器电磁耦合的第二带状线谐振器，其两端连接到第二带状线谐振器，其中所述第一带状线谐振器和所述第二带状线谐振器通过至少一个阻抗元件连接，并且所述第二带状线谐振器是基本上具有谐振频率的波长长度的1/2的1/2波长谐振器。

9. 发明申请

US20050242900A1 Balanced high-frequency filter, antenna duplexer, balanced high-frequency circuit and communication apparatus 有权
标题翻译：平衡高频滤波器，天线双工器，平衡高频电路和通信设备
公开(公告)号：US20050242900A1
公开(公告)日：2005-11-03
申请号：US11078793
申请日：2005-03-11
申请人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
发明人： Hiroyuki Nakamura , Toshifumi Nakatani , Toshio Ishizaki
IPC分类号： H03H5/00 , H03H7/18 , H03H7/38 , H03H9/00 , H03H11/16 , H03H11/32
CPC分类号： H03H9/0042 , H03H7/42 , H03H9/0038 , H03H9/14588
摘要： With an antenna duplexer having balanced terminals, there has been a problem that the amount of leakage of common-mode signal components in the balanced terminals is large. A balanced high-frequency filter designed to solve this problem comprises a balanced high-frequency element and a phase-shifting circuit which includes a transmission line and placed between output terminals, and which is series resonance circuit having a length set to λT/2 (λT: the wavelength at a frequency in a transmission frequency band) and capable of resonating with common-mode signal components at a predetermined frequency.
摘要翻译：对于具有平衡端子的天线双工器，存在平衡端子中的共模信号分量的泄漏量大的问题。设计用于解决这个问题的平衡式高频滤波器包括一个平衡的高频元件和一个包括传输线并置于输出端之间的移相电路，并且是串联谐振电路，其长度设定为λ< Tλ/ 2（λT是发送频带中的频率处的波长），并且能够以预定频率与共模信号分量谐振。

10. 发明授权

US06809611B2 Composite filter, antenna duplexer, and communication apparatus 有权
标题翻译：复合滤波器，天线双工器和通信设备
公开(公告)号：US06809611B2
公开(公告)日：2004-10-26
申请号：US10264986
申请日：2002-10-01
申请人： Toshio Ishizaki , Hiroyuki Nakamura
发明人： Toshio Ishizaki , Hiroyuki Nakamura
IPC分类号： H03H964
CPC分类号： H01P1/213 , H01P1/20
摘要： A composite filter has a dielectric notch filter; and a first surface acoustic wave filter. An attenuation band of the dielectric notch filter and an attenuation band of the first surface acoustic wave filter have at least a common band portion; and the dielectric notch filter and the surface acoustic wave filter are connected in cascade.
摘要翻译：复合滤波器具有介质陷波滤波器; 和第一声表面波滤波器。介质陷波滤波器的衰减频带和第一声表面波滤波器的衰减频带至少具有公共频带部分; 介质陷波滤波器和声表面波滤波器级联连接。

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