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1. 发明授权

US5905418A Surface-acoustic-wave filters with poles of attenuation created by impedance circuits 失效
公开(公告)号：US5905418A
公开(公告)日：1999-05-18
申请号：US993580
申请日：1997-12-18
申请人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
发明人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
IPC分类号： H03H7/01 , H03H7/38 , H03H9/05 , H03H9/64 , H03H9/72
CPC分类号： H03H9/725 , H03H9/0576 , H03H9/6483 , H03H9/72 , H03H7/0115 , H03H7/1708 , H03H7/1725 , H03H7/175 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/1783 , H03H7/1791 , H03H7/38
摘要： A surface-acoustic-wave filter couples a two-port surface-acoustic-wave resonator filter circuit coupled in parallel or in series with a two-port impedance circuit. The two-port impedance circuit has an impedance that creates a pole of attenuation, by making the open-circuit impedance of the surface-acoustic-wave filter equal to the short-circuit impedance. High attenuation over a wide range of stopband frequencies is obtained in this way, combined with steep roll-off between the passband and stopband.

2. 再颁专利

USRE37639E1 Surface-acoustic-wave filters with poles of attenuation created by impedance circuits 有权
标题翻译：具有由阻抗电路产生的衰减极性的表面声波滤波器
公开(公告)号：USRE37639E1
公开(公告)日：2002-04-09
申请号：US09484282
申请日：2000-01-18
申请人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
发明人： Hisanori Ehara , Kazushige Noguchi , Hajime Shimamura , Yoshio Okada , Tomokazu Komazaki
IPC分类号： H03H964
CPC分类号： H03H9/725 , H03H7/0115 , H03H7/1708 , H03H7/1725 , H03H7/175 , H03H7/1758 , H03H7/1766 , H03H7/1775 , H03H7/1783 , H03H7/1791 , H03H7/38 , H03H9/0576 , H03H9/6483 , H03H9/72
摘要： A surface-acoustic-wave filter couples a two-port surface-acoustic-wave resonator filter circuit coupled in parallel or in series with a two-port impedance circuit. The two-port impedance circuit has an impedance that creates a pole of attenuation, by making the open-circuit impedance of the surface-acoustic-wave filter equal to the short-circuit impedance. High attenuation over a wide range of stopband frequencies is obtained in this way, combined with steep roll-off between the passband and stopband.
摘要翻译：表面声波滤波器耦合并联或与双端口阻抗电路串联耦合的双端口表面声波谐振器滤波器电路。双端口阻抗电路具有通过使表面声波滤波器的开路阻抗等于短路阻抗而产生衰减极点的阻抗。以这种方式获得宽范围的阻带频率的高衰减，并结合通带和阻带之间的急剧下降。

3. 发明授权

US06377140B1 Saw resonator filter with bridged-T configuration 失效
标题翻译：具有桥接T配置的锯片谐振器滤波器
公开(公告)号：US06377140B1
公开(公告)日：2002-04-23
申请号：US09526490
申请日：2000-03-15
申请人： Hisanori Ehara , Hajime Shimamura , Yoshiaki Fujita , Tomokazu Komazaki
发明人： Hisanori Ehara , Hajime Shimamura , Yoshiaki Fujita , Tomokazu Komazaki
IPC分类号： H03H964
CPC分类号： H03H9/6483
摘要： A surface-acoustic-wave filter has a pair of series-arm surface-acoustic-wave resonators and a shunt-arm surface-acoustic-wave resonator coupled in a T configuration. An additional bridging surface-acoustic-wave resonator is coupled between the input and output terminals, in parallel with the series arm. The bridging surface-acoustic-wave resonator provides enhanced attenuation of spurious signals at multiples of the passband frequency.
摘要翻译：表面声波滤波器具有一对串联臂表面声波谐振器和以T构型耦合的分流臂表面声波谐振器。另外的桥接表面声波谐振器与串联臂并联在输入端和输出端之间。桥接表面声波谐振器在通带频率的倍数提供杂散信号的增强衰减。

4. 发明授权

US06222426B1 Branching filter with a composite circuit of an LC circuit and a serial arm saw resonator 有权
标题翻译：具有LC电路和串联臂锯谐振器的复合电路的分支滤波器
公开(公告)号：US06222426B1
公开(公告)日：2001-04-24
申请号：US09305304
申请日：1999-05-05
申请人： Tomokazu Komazaki , Yoshiaki Fujita , Hajime Shimamura
发明人： Tomokazu Komazaki , Yoshiaki Fujita , Hajime Shimamura
IPC分类号： H03H972
CPC分类号： H03H9/725 , H03H9/0576 , H03H9/72
摘要： A branching filter comprising a SAW resonator. The branching filter comprises a transmission SAW filter linked between an antenna terminal and a transmission terminal; a receiving SAW filter with different bandpass characteristics from the transmission SAW filter linked between the antenna terminal and the transmission terminal; a composite circuit that combines a frequency adjusting LC circuit linked between the antenna terminal and the transmission and receiving SAW filters with a branching filter circuit; and the branching filter circuit being structured to have a serial arm SAW resonator.
摘要翻译：一种包括SAW谐振器的分路滤波器。分路滤波器包括连接在天线端子和发送端子之间的发送SAW滤波器; 具有与天线端子与传输端子连接的传输SAW滤波器具有不同带通特性的接收SAW滤波器; 复合电路，其组合连接在所述天线端子和所述变速器之间的频率调节LC电路并且接收具有分波器滤波器电路的SAW滤波器; 并且分波滤波器电路被构造成具有串联臂SAW谐振器。

5. 发明授权

US07679472B2 Branching filter package 失效
标题翻译：分支过滤器包装
公开(公告)号：US07679472B2
公开(公告)日：2010-03-16
申请号：US11979063
申请日：2007-10-30
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.
摘要翻译：分路滤波器封装具有容纳压电基座的SAW滤波器芯片容纳区域，其上形成有彼此具有不同频率通过频带的发送SAW滤波器和接收SAW滤波器，以及阻抗匹配电路和分支用于发射SAW滤波器和接收SAW滤波器的电路。

6. 发明申请

US20100007434A1 Branching filter package 失效
公开(公告)号：US20100007434A1
公开(公告)日：2010-01-14
申请号：US11979064
申请日：2007-10-30
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/00
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

7. 发明申请

US20080129413A1 Branching filter package 失效
标题翻译：分支过滤器包装
公开(公告)号：US20080129413A1
公开(公告)日：2008-06-05
申请号：US11979063
申请日：2007-10-30
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72 , H01L41/22
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.
摘要翻译：分路滤波器封装具有容纳压电基座的SAW滤波器芯片容纳区域，其上形成有彼此具有不同频率通过频带的发送SAW滤波器和接收SAW滤波器，以及阻抗匹配电路和分支用于发射SAW滤波器和接收SAW滤波器的电路。

8. 发明授权

US06870440B2 Saw branching filter with a branching filter circuit formed on the package 有权
标题翻译：具有形成在封装上的分支滤波器电路的锯分波器
公开(公告)号：US06870440B2
公开(公告)日：2005-03-22
申请号：US09785501
申请日：2001-02-20
申请人： Tomokazu Komazaki , Yoshiaki Fujita , Hajime Shimamura
发明人： Tomokazu Komazaki , Yoshiaki Fujita , Hajime Shimamura
IPC分类号： H03H9/72 , H03H9/64
CPC分类号： H03H9/725 , H03H9/0576 , H03H9/72
摘要： A surface acoustic wave duplexer having an antenna terminal, a transmitting terminal and a receiving terminal. The surface acoustic wave duplexer includes a transmitting SAW filter coupled between the antenna terminal and the transmitting terminal, a receiving SAW filter coupled between the antenna terminal and the receiving terminal, a common piezoelectric substrate on which both of the transmitting SAW filter and the receiving SAW filter are formed, a package covering the common piezoelectric substrate. The antenna terminal, the transmitting terminal and the receiving terminal are formed on the package, and a frequency adjusting circuit is coupled between the antenna terminal and the transmitting SAW filter or the receiving SAW filter. The frequency adjusting circuit has a capacitance element.
摘要翻译：具有天线端子，发送端子和接收端子的表面声波双工器。表面声波双工器包括耦合在天线端子和发射端子之间的发射SAW滤波器，耦合在天线端子和接收端子之间的接收SAW滤波器，公共压电基片，发射SAW滤波器和接收SAW 滤波器形成，覆盖公共压电基板的封装。天线端子，发送端子和接收端子形成在封装上，并且频率调节电路耦合在天线端子和发射SAW滤波器或接收SAW滤波器之间。频率调整电路具有电容元件。

9. 发明授权

US07602263B2 Branching filter package 失效
公开(公告)号：US07602263B2
公开(公告)日：2009-10-13
申请号：US11978671
申请日：2007-10-30
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

10. 发明授权

US07479845B2 Branching filter package 有权
公开(公告)号：US07479845B2
公开(公告)日：2009-01-20
申请号：US11032145
申请日：2005-01-11
申请人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
发明人： Wataru Ohashi , Hajime Shimamura , Tomokazu Komazaki , Yoshiaki Fujita
IPC分类号： H03H9/72
CPC分类号： H03H7/38 , H03H9/0576 , H03H9/72 , H03H9/725 , Y10T29/42
摘要： A branching filter package has a SAW filter chip housing area which houses a piezo electric base, on which a transmitting SAW filter and a receiving SAW filter having a different frequency passing band with each other, are formed, and an impedance matching circuit and a branching circuit for the transmitting SAW filter and the receiving SAW filter.

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