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1. 发明授权

US06531991B2 Dielectric resonator antenna for a mobile communication 失效
标题翻译：用于移动通信的介质谐振器天线
公开(公告)号：US06531991B2
公开(公告)日：2003-03-11
申请号：US09793044
申请日：2001-02-27
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q140
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.
摘要翻译：半导体介质谐振器布置在金属基板上，以使半球形介质谐振器的平坦表面与金属基板接触，并且介电波导通道与半球形介质谐振器的弯曲侧表面连接。因此，获得了将半球形介质谐振器和介质波导路放置在同一金属基板上的介质谐振天线。通过介质波导通道传输的信号被馈送到半球形介质谐振器中，半球形介质谐振器谐振，并且电磁波被辐射。因此，介质谐振天线用作波浪辐射装置。

2. 发明授权

US5748059A Plane type strip-line filter in which strip line is shortened and dual mode resonator in which two types microwaves are independently resonated 失效
公开(公告)号：US5748059A
公开(公告)日：1998-05-05
申请号：US775772
申请日：1996-12-31
申请人： Hiroyuki Yabuki , Michiaki Matsuo , Morikazu Sagawa , Mitsuo Makimoto
发明人： Hiroyuki Yabuki , Michiaki Matsuo , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01P1/203 , H01P7/08
CPC分类号： H01P1/20381 , H01P7/082 , H01P7/084
摘要： A strip-line filter is provided with upper- and lower-stage resonators having the same electromagnetic characteristics. Each of the resonators has a one-wavelength square-shaped strip line and four open-end transmission lines connected to four coupling points A,C,B and D (or E,G,F and H) of each resonator which are spaced 90 degrees in electric length in that order. The square-shaped strip lines have a pair of parallel coupling lines closely placed in parallel to each other to electromagnetically couple the resonators. Therefore, the filter can be manufactured in a small size. A first microwave resonated in each resonator is electromagnetically influenced by two open-end transmission lines connected to two coupling points A and B (or E and F), and a second microwave resonated in each resonator is electromagnetically influenced by two open-end transmission lines connected to two coupling points C and D (or G and H). Therefore, resonance wavelengths of the microwaves can be longer than a line length of each square-shaped strip line. Also, the resonance wavelengths can be adjusted by trimming the transmission lines. Also, because all constitutional elements are made of strip lines, the filter can be made plane.

3. 发明授权

US5715532A Frequency converter apparatus with distortion compensating circuit 失效
标题翻译：具有失真补偿电路的变频器设备
公开(公告)号：US5715532A
公开(公告)日：1998-02-03
申请号：US592864
申请日：1996-01-24
申请人： Morikazu Sagawa , Keiichirou Kuwaduru , Kazuaki Takahashi , Yoshikazu Mori
发明人： Morikazu Sagawa , Keiichirou Kuwaduru , Kazuaki Takahashi , Yoshikazu Mori
IPC分类号： H03C1/54 , H03D7/12 , H03D7/14 , H04B1/26
CPC分类号： H03F3/45197 , H03D7/1425 , H03D7/1433 , H03D7/1458 , H03C1/542 , H03D2200/0033 , H03D2200/0088 , H03D7/125 , H03F2203/45251
摘要： A frequency converter may be employed in communication equipment such as a portable telephone. The frequency converter includes a differential pair consisting of first and second transistors, a current bypass circuit consisting of third and fourth transistors, and a distortion compensating circuit consisting of fifth and sixth transistors. The distortion compensating circuit decreases an emitter-to-base voltage of the sixth transistor when an emitter current of the first transistor is increased, while it increases an emitter-to-base voltage of the fifth transistor when an emitter current of the second transistor is decreased, non-linearts components of the emitter-to-base voltages of the first and second transistors caused by variations of RF (radio-frequency) signals inputted to the first and second transistors are called decreasing distortion of an output signal of the frequency converter caused by the difference in operating point between the first and second transistors.
摘要翻译：在诸如便携式电话的通信设备中可以采用变频器。变频器包括由第一和第二晶体管组成的差分对，由第三和第四晶体管组成的电流旁路电路，以及由第五和第六晶体管组成的失真补偿电路。当第一晶体管的发射极电流增加时，失真补偿电路降低第六晶体管的发射极到基极电压，而当第二晶体管的发射极电流为由输入到第一和第二晶体管的RF（射频）信号的变化引起的第一和第二晶体管的发射极到基极电压的减少的非线性分量被称为减少变频器的输出信号的失真由第一和第二晶体管之间的工作点的差异引起。

4. 发明授权

US5697063A Indoor radio communication system 失效
标题翻译：室内无线电通信系统
公开(公告)号：US5697063A
公开(公告)日：1997-12-09
申请号：US649566
申请日：1996-05-17
申请人： Takaaki Kishigami , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Takaaki Kishigami , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q1/00 , H04B7/00 , H04B7/14
CPC分类号： H01Q1/007
摘要： A master station master antenna having a high directivity in an upper direction, a slave station and a slave antenna having a high directivity in the high direction are arranged on a floor of a room, and furniture is arranged on the floor between the master antenna and the slave antenna. Also, a master reflecting mirror is arranged on a ceiling of the room placed just above the master antenna, and a slave reflecting mirror is arranged on the ceiling placed just above the slave antenna. When an electric wave having a data signal is radiated from the master station, the electric wave radiated in the upper direction passes through a first transmission route and is reflected by the master reflecting mirror toward a horizontal direction. Thereafter, the electric wave passes through a second transmission route near the ceiling and is again reflected by the slave reflecting mirror toward the lower direction. Thereafter, the electric wave passes through a third transmission route and is received by the slave antenna because the slave antenna has a high directivity to receive the electric wave transmitted from the upper direction. Therefore, the data signal can be reliably detected by the slave station without being interrupted by the furniture.
摘要翻译：在房间的地板上设置有在上方具有高方向性的主站主天线，具有高方向性的从属站和从属天线，并且家具布置在主天线和从属天线。此外，主反射镜布置在位于主天线正上方的房间的天花板上，并且从属反射镜布置在刚好在从属天线上方的天花板上。当从主站辐射具有数据信号的电波时，沿上方辐射的电波通过第一传输路径，并被主反射镜朝向水平方向反射。此后，电波通过靠近天花板的第二传输路径，并且被从反射镜再次向下方反射。此后，电波通过第三传输路由并由从属天线接收，因为从属天线具有高方向性以接收从上方发送的电波。因此，数据信号可以被从站可靠地检测而不被家具中断。

5. 发明授权

US5517163A Dielectric coaxial resonator 失效
标题翻译：介质同轴谐振器
公开(公告)号：US5517163A
公开(公告)日：1996-05-14
申请号：US362295
申请日：1994-12-22
申请人： Morikazu Sagawa , Mitsuo Makimoto
发明人： Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01P1/212 , H01P7/04
CPC分类号： H01P7/04
摘要： A compact dielectric coaxial resonator is provided which includes a dielectric substance having a preselected length along the center line thereof, a groove formed in an end portion of the dielectric substance, a through hole, formed in the dielectric substance, extending through the center line of the dielectric substance, an outer conductive member provided around the periphery of the dielectric substance, and an inner conductive member provided over the groove and the through hole. The groove is exposed to the outside and defined around the center line of the dielectric substance. The through hole is defined to have a given length shorter than the preselected length of the dielectric substance for achieving a small-sized structure with a high unloaded Q which may be manufactured in a simple manner.
摘要翻译：提供了一种紧凑的电介质同轴谐振器，其包括沿着其中心线具有预定长度的电介质，形成在电介质的端部的沟槽，形成在电介质中的通孔，延伸穿过电介质的中心线所述电介质物质，设置在所述电介质的周围的外部导电部件，以及设置在所述槽和所述贯通孔的上方的内部导电部件。凹槽暴露于外部并围绕电介质物质的中心线限定。通孔被限定为具有比用于实现具有可以以简单的方式制造的高卸载Q的小尺寸结构的电介质的预选长度的给定长度。

6. 发明授权

US5138284A Push-push oscillator using a transmission line resonator and differential output 失效
标题翻译：使用传输线谐振器和差分输出的推压振荡器
公开(公告)号：US5138284A
公开(公告)日：1992-08-11
申请号：US722468
申请日：1991-06-27
申请人： Hiroyuki Yabuki , Haruyoshi Endo , Morikazu Sagawa , Mitsuo Makimoto
发明人： Hiroyuki Yabuki , Haruyoshi Endo , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01P7/08 , H01P5/10 , H03B1/04 , H03B5/18 , H03B19/14 , H03F3/45 , H03F3/60 , H03F3/68
CPC分类号： H03B5/1847 , H03B19/14 , H03B2200/0008 , H03B2200/0016 , H03B2200/007 , H03B2200/0088 , H03B2202/07 , H03B2202/086
摘要： A push-push oscillator comprises: a resonator having a transmission line and a capacitance connected to the transmission line in parallel; an oscillator for producing two outputs having an antiphase relation therebetween in response to the resonator; and a differential signal producing circuit for producing a differential signal in accordance with difference between these two outputs. These outputs can be obtained from the resonator. The transmission lines comprise strip line or microstrip line which is curved to form an open loop. The transmission line may be made of a dielectric material and is curved to form an open loop whose both ends are connected to a capacitance. The resonator may further comprise two second transmission lines, each provided to an end of the transmission line, these two second transmission lines facing each other with a given distance therebetween, the distance and length of the second transmission lines being determined such that necessary capacitance is provided. Impedance of each portion of the resonator is determined to miniaturize the resonator. The differential signal producing circuit comprises a balanced to unbalanced converting circuit.
摘要翻译：按压式振荡器包括：具有传输线和并联连接到传输线的电容的谐振器; 用于响应谐振器产生具有反相关系的两个输出的振荡器; 以及用于根据这两个输出之间的差产生差分信号的差分信号产生电路。这些输出可以从谐振器获得。传输线包括弯曲形成开环的带状线或微带线。传输线可以由介电材料制成，并且被弯曲以形成其两端连接到电容的开环。谐振器可以进一步包括两条第二传输线，每条第二传输线分别设置在传输线的一端，这两条第二传输线彼此面对给定的距离，第二条传输线的距离和长度被确定为使得必要的电容是提供。确定谐振器的每个部分的阻抗以使谐振器小型化。差分信号产生电路包括平衡到不平衡转换电路。

7. 发明授权

US5055809A Resonator and a filter including the same 失效
标题翻译：谐振器和滤波器，包括它们
公开(公告)号：US5055809A
公开(公告)日：1991-10-08
申请号：US529700
申请日：1990-05-31
申请人： Morikazu Sagawa , Haruyoshi Endo , Mitsuo Makimoto , Fumio Fukushima
发明人： Morikazu Sagawa , Haruyoshi Endo , Mitsuo Makimoto , Fumio Fukushima
IPC分类号： H01P1/203 , H01P7/08
CPC分类号： H01P1/20336 , H01P1/20381 , H01P7/082 , H01P7/084
摘要： A resonator having a strip line, the strip line comprising: a first portion forming an open loop; and two second portions, each provided to each end of the first portion, the second portions facing each other with a given distance therebetween, the distance and length of the second portion being determined such that necessary capacitance is provided. The capacitor is provided instead of a discrete capacitor for saving space and for reducing dielectric loss therein. A second resonator further comprises second and third capacitor having a semicircle strip-line patterns for providing capacitances between ends of the first portion and grounded planes which decrease the resonance frequency so that size of the second resonator are reduced. A third resonator also comprises the first capacitor, but arranged outside of the first portion. Capacitance of the first capacitor can be increased by teeth provided to the second portions. A filter comprises plural third resonators so arranged that coupling between the resonators is obtained by one selected from magnetic-field coupling through the first portions, electromagnetic-field coupling through first and second portions, and electric-field coupling through second portions.
摘要翻译：一种具有带状线的谐振器，所述带状线包括：形成开环的第一部分; 以及两个第二部分，每个设置在第一部分的每个端部，第二部分彼此面对给定的距离，第二部分的距离和长度被确定为提供必要的电容。提供电容器代替分立电容器，以节省空间并减少其中的介质损耗。第二谐振器还包括具有用于在第一部分的端部和接地平面之间提供电容的半圆形带状线图案的第二和第三电容器，这降低了谐振频率，使得第二谐振器的尺寸减小。第三谐振器还包括第一电容器，但是布置在第一部分的外部。通过提供给第二部分的齿可以增加第一电容器的电容。滤波器包括多个第三谐振器，其被布置成通过选自通过第一部分的磁场耦合，通过第一和第二部分的电磁场耦合，以及通过第二部分的电场耦合来获得谐振器之间的耦合。

8. 发明授权

US4315333A Circuit arrangement for a wide-band VHF-UHF television double superheterodyne receiver 失效
标题翻译：宽带VHF-UHF电视双超外差接收机的电路布置
公开(公告)号：US4315333A
公开(公告)日：1982-02-09
申请号：US143809
申请日：1980-04-23
申请人： Sadahiko Yamashita , Hiroshi Onishi , Mitsuo Saito , Morikazu Sagawa
发明人： Sadahiko Yamashita , Hiroshi Onishi , Mitsuo Saito , Morikazu Sagawa
IPC分类号： H03D7/16 , H04B1/26
CPC分类号： H04B1/0092 , H03D7/161 , H04B1/26
摘要： The signal transmission lines in a double conversion stage for a double superheterodyne VHF-UHF television receiver are mainly constructed of unbalanced circuits rather than balanced circuits. The circuit arrangement comprises a wide-band amplifier for receiving the incoming carrier frequency, first and second frequency conversion stages, and an intermediate frequency amplifying stage, connections between the wide-band amplifier and the first frequency conversion stage, as well as connections between the second frequency conversion stage and the intermediate frequency amplifying stage are achieved by means of unbalanced circuits. Each of the first and second frequency conversion stages comprises a mixer constructed of a single balanced circuit, a local oscillator and an unbalanced/balanced conversion circuit interposed therebetween. A filter means, having a band-pass filter, and a low-pass filter interposed between the first and second frequency conversion stages effectively blocks spurious signals.
摘要翻译：用于双超外差VHF-UHF电视接收机的双转换级中的信号传输线主要由不平衡电路而不是平衡电路构成。该电路装置包括宽带放大器，用于接收进入的载波频率，第一和第二频率转换级以及中频放大级，宽带放大器与第一变频级之间的连接，以及第二变频级和中频放大级通过不平衡电路实现。第一和第二变频级中的每一个包括由单个平衡电路，本地振荡器和插入其间的不平衡/平衡转换电路构成的混频器。具有带通滤波器的滤波器装置和插在第一和第二频率转换级之间的低通滤波器有效地阻止杂散信号。

9. 发明申请

US20080240289A1 PILOT SIGNAL TRANSMISSION TECHNIQUE AND DIGITAL COMMUNICATION SYSTEM USING SAME 审中-公开
标题翻译：引导信号传输技术和数字通信系统
公开(公告)号：US20080240289A1
公开(公告)日：2008-10-02
申请号：US12132817
申请日：2008-06-04
申请人： Yutaka Murakami , Masayuki Orihashi , Akihiko Matsuoka , Morikazu Sagawa
发明人： Yutaka Murakami , Masayuki Orihashi , Akihiko Matsuoka , Morikazu Sagawa
IPC分类号： H04L27/36
CPC分类号： H04L27/3455
摘要： In a digital communication system such as a mobile radio system, fading distortion is compensated with a raised precision. In a transmitter, pilot signals are regularly inserted in the information signals. The amplitude of the pilot signals are set larger than the maximum possible amplitude of the information signals. The modulation scheme of the pilot signals may be different from that of the information signals. In a receiver, the fading distortion of each of the pilot signals is determined. The fading distortions of the information signals are estimated by interpolation using the determined fading distortion of the pilot signal, and then compensated. The frequency band of each information signal is preferably limited with a roll-off filter with a roll-off coefficient ranging from 0.1 to 0.4.
摘要翻译：在诸如移动无线电系统的数字通信系统中，以提高的精度补偿衰落失真。在发射机中，导频信号被定期插入信息信号中。导频信号的幅度被设定为大于信息信号的最大可能幅度。导频信号的调制方式可能与信息信号的调制方式不同。在接收机中，确定每个导频信号的衰落失真。通过使用确定的导频信号的衰落失真的内插来估计信息信号的衰落失真，然后进行补偿。每个信息信号的频带优选地通过具有从0.1到0.4的滚降系数的滚降滤波器来限制。

10. 发明授权

US06608843B1 Pilot signal transmission technique and digital communication system using same 有权
标题翻译：导频信号传输技术和数字通信系统使用相同
公开(公告)号：US06608843B1
公开(公告)日：2003-08-19
申请号：US09292398
申请日：1999-04-15
申请人： Yutaka Murakami , Masayuki Orihashi , Akihiko Matsuoka , Morikazu Sagawa
发明人： Yutaka Murakami , Masayuki Orihashi , Akihiko Matsuoka , Morikazu Sagawa
IPC分类号： H04B310
CPC分类号： H04L27/3455
摘要： In a digital communication system such as a mobile radio system, fading distortion is compensated with a raised precision. In a transmitter, pilot signals are regularly inserted in the information signals. The amplitude of the pilot signals are set larger than the maximum possible amplitude of the information signals. The modulation scheme of the pilot signals may be different from that of the information signals. In a receiver, the fading distortion of each of the pilot signals is determined. The fading distortions of the information signals are estimated by interpolation using the determined fading distortion of the pilot signal, and then compensated. The frequency band of each information signal is preferably limited with a roll-off filter with a roll-off coefficient ranging from 0.1 to 0.4.
摘要翻译：在诸如移动无线电系统的数字通信系统中，以提高的精度补偿衰落失真。在发射机中，导频信号被定期插入信息信号中。导频信号的幅度被设定为大于信息信号的最大可能幅度。导频信号的调制方式可能与信息信号的调制方式不同。在接收机中，确定每个导频信号的衰落失真。通过使用确定的导频信号的衰落失真的内插来估计信息信号的衰落失真，然后进行补偿。每个信息信号的频带优选地通过具有从0.1到0.4的滚降系数的滚降滤波器来限制。

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