公开(公告)号：US5541559A

公开(公告)日：1996-07-30

申请号：US534770

申请日：1995-09-27

申请人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

发明人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

IPC分类号： H01P1/203 ,  H01P7/08

CPC分类号： H01P1/20381 ,  H01P1/2039 ,  H01P7/082 ,  H01P7/084 ,  H01P7/088

摘要： A strip dual mode filter consists of a strip line ring resonator having an electric length equivalent to a resonance wavelength .lambda..sub.o for resonating microwaves at the resonance wavelength .lambda..sub.o according to a characteristic impedance thereof, an input coupling capacitor for transmitting the microwaves from an input terminal to a coupling point A of the ring resonator, an output coupling capacitor for outputting the microwaves resonated in the ring resonator from a coupling point B of the ring resonator to an output terminal, and a phase-shifting circuit connected to a coupling point C and a coupling point D of the ring resonator for changing the characteristic impedance of the ring resonator by shifting a phase of the microwave by a multiple of a half wavelength of the microwaves. The coupling point B is spaced a quarter wavelength of the microwaves apart from the coupling point A, the coupling point C is spaced the half wavelength of the microwaves apart from the coupling point A, and the coupling point D is spaced the half wavelength of the microwaves apart from the coupling point B.

摘要翻译： 带状双模式滤波器由带状线环形谐振器组成，带状线环谐振器具有等于谐振波长λo的电长度，用于根据其特性阻抗谐振波长为λo的微波;输入耦合电容器，用于从输入端发射微波 端子连接到环形谐振器的耦合点A，用于将环形谐振器中谐振的微波从环形谐振器的耦合点B输出到输出端子的输出耦合电容器和连接到耦合点C的相移电路 以及环形谐振器的耦合点D，用于通过将微波的相位移动微波的半波长的倍数来改变环形谐振器的特性阻抗。 耦合点B与耦合点A隔开四分之一波长的微波，耦合点C将微波的半波长与耦合点A隔开，并且耦合点D与第一波长 除了耦合点B之外的微波。

公开(公告)号：US5659274A

公开(公告)日：1997-08-19

申请号：US534470

申请日：1995-09-27

申请人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

发明人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

IPC分类号： H01P1/203 ,  H01P7/08

CPC分类号： H01P1/20381 ,  H01P1/2039 ,  H01P7/082 ,  H01P7/084 ,  H01P7/088

摘要： A strip dual mode filter includes a strip line ring resonator having a uniform line impedance and an electric length equivalent to a wavelength of a microwave, an input terminal coupled to a point A of the ring resonator, a feed-back circuit connected to points C and D and arranged in a central hollow space of the ring resonator and an output terminal coupled to a point B of the ring resonator. The points A to D are spaced by a quarter-wave length of the microwave in that order. The microwave input to the point A is resonated in the ring resonator in a first mode and is input to the feed-back circuit from the point C. Therefore, a phase of the microwave shifts by a multiple of a half-wave length of the microwave, and the microwave is output to the point D. Thereafter, the microwave is resonated in the ring resonator in a second mode orthogonal to the first mode and is output from the point B to the output terminal. Therefore, the microwave can be resonated and filtered in two orthogonal modes in the strip dual mode filter.

摘要翻译： 带状双模式滤波器包括具有均匀线路阻抗和等于微波波长的电长度的带状线环形谐振器，耦合到环形谐振器的点A的输入端子，连接到点C的反馈电路 和D并且布置在环形谐振器的中心中空空间中，以及耦合到环形谐振器的点B的输出端子。 点A到D按照该微波的四分之一波长间隔。 输入到点A的微波在第一模式中在环形谐振器中谐振，并从点C输入到反馈电路。因此，微波的相位移位了多个半波长的 微波，微波输出到点D.此后，微波在与第一模式正交的第二模式中在环形谐振器中谐振，并从点B输出到输出端。 因此，微波可以在带状双模式滤波器中以两种正交模式共振和滤波。

公开(公告)号：US5479142A

公开(公告)日：1995-12-26

申请号：US291811

申请日：1994-08-17

申请人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

发明人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

IPC分类号： H01P1/203 ,  H01P7/08

CPC分类号： H01P1/20381 ,  H01P1/2039 ,  H01P7/082 ,  H01P7/084 ,  H01P7/088

摘要： A strip dual mode filter consists of a strip line ring resonator having an electric length equivalent to a resonance wavelength .lambda..sub.o for resonating microwaves at the resonance wavelength .lambda..sub.o according to a characteristic impedance thereof, an input coupling capacitor for transmitting the microwaves from an input terminal to a coupling point A of the ring resonator, an output coupling capacitor for outputting the microwaves resonated in the ring resonator from a coupling point B of the ring resonator to an output terminal, and a phase-shifting circuit connected to a coupling point C and a coupling point D of the ring resonator for changing the characteristic impedance of the ring resonator by shifting a phase of the microwave by a multiple of a half-wavelength of the microwaves. The coupling point B is spaced a quarter-wavelength of the microwaves apart from the coupling point A, the coupling point C is spaced the half-wavelength of the microwaves apart from the coupling point A, and the coupling point D is spaced the half-wavelength of the microwaves apart from the coupling point B.

摘要翻译： 带状双模式滤波器由带状线环形谐振器组成，带状线环谐振器具有等于谐振波长λo的电长度，用于根据其特性阻抗谐振波长为λo的微波;输入耦合电容器，用于从输入端发射微波 端子连接到环形谐振器的耦合点A，用于将环形谐振器中谐振的微波从环形谐振器的耦合点B输出到输出端子的输出耦合电容器和连接到耦合点C的相移电路 以及环形谐振器的耦合点D，用于通过将微波的相位移动微波的半波长的倍数来改变环形谐振器的特性阻抗。 耦合点B与耦合点A分开四分之一波长的微波，耦合点C将微波的半波长与耦合点A分开，耦合点D与半耦合点间隔开， 除了耦合点B之外的微波的波长。

公开(公告)号：US5400002A

公开(公告)日：1995-03-21

申请号：US71112

申请日：1993-06-03

申请人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

发明人： Kazuaki Takahashi ,  Munenori Fujimura ,  Hiroyuki Yabuki ,  Mitsuo Makimoto

IPC分类号： H01P1/203 ,  H01P7/08

CPC分类号： H01P1/20381 ,  H01P1/2039 ,  H01P7/082 ,  H01P7/084 ,  H01P7/088

摘要： A strip dual mode filter consists of a strip line ring resonator having an electric length equivalent to a resonance wavelength .lambda..sub.o for resonating microwaves at the resonance wavelength .lambda..sub.o according to a characteristic impedance thereof, an input coupling capacitor for transmitting the microwaves from an input terminal to a coupling point A of the ring resonator, an output coupling capacitor for outputting the microwaves resonated in the ring resonator from a coupling point B of the ring resonator to an output terminal, and a phase-shifting circuit connected to a coupling point C and a coupling point D of the ring resonator for changing the characteristic impedance of the ring resonator by shifting a phase of the microwave by a multiple of a half-wave length of the microwaves. The coupling point B is spaced a quarter-wave length of the microwaves apart from the coupling point A, the coupling point C is spaced the half-wave length of the microwaves apart from the coupling point A, and the coupling point D is spaced the half-wave length of the microwaves apart from the coupling point B.

摘要翻译： 带状双模式滤波器由带状线环形谐振器组成，带状线环谐振器具有等于谐振波长λo的电长度，用于根据其特性阻抗谐振波长为λo的微波;输入耦合电容器，用于从输入端发射微波 端子连接到环形谐振器的耦合点A，用于将环形谐振器中谐振的微波从环形谐振器的耦合点B输出到输出端子的输出耦合电容器和连接到耦合点C的相移电路 以及环形谐振器的耦合点D，用于通过将微波的相位移动微波的半波长的倍数来改变环形谐振器的特性阻抗。 耦合点B与耦合点A分开的四分之一波长的微波，耦合点C将微波的半波长与耦合点A分开，耦合点D间隔开 除耦合点B之外的微波半波长。

公开(公告)号：US5361408A

公开(公告)日：1994-11-01

申请号：US734447

申请日：1991-07-23

申请人： Kazunori Watanabe ,  Yasumi Imagawa ,  Makoto Hasegawa ,  Kazuaki Takahashi

发明人： Kazunori Watanabe ,  Yasumi Imagawa ,  Makoto Hasegawa ,  Kazuaki Takahashi

IPC分类号： H04L27/14 ,  H03D3/00 ,  H03D7/16 ,  H04B1/30 ,  H04B15/06 ,  H04B1/16 ,  H04B1/00

CPC分类号： H03D3/007 ,  H04B1/30 ,  H03D7/165

摘要： A direct conversion receiver for providing a direct conversion of a radio frequency signal having a carrier frequency comprises a local oscillator for substantially equal frequency to the carrier, and a semiconductor integrated circuit mounting mixers and amplifiers for amplifying inputs to the mixer. The amplifiers amplify the local oscillation signals and/or radio frequency signal inputted from the outside of the semiconductor integrated circuit and supply the amplified signals to the mixers. The mixers mix these inputted signals and output the mixed signals to the outside of the semiconductor integrated circuit. By thus forming the receiver, radiation of the local oscillation signals to outside of the receiver and leakage inside thereof can be suppressed.

摘要翻译： 用于提供具有载波频率的射频信号的直接转换的直接转换接收机包括用于与载波基本相等的频率的本地振荡器，以及用于放大输入到混频器的半导体集成电路安装混频器和放大器。 放大器放大从半导体集成电路的外部输入的本地振荡信号和/或射频信号，并将放大的信号提供给混频器。 混频器混合这些输入的信号，并将混合信号输出到半导体集成电路的外部。 通过这样形成接收器，可以抑制本地振荡信号的辐射到接收器外部并在其内部泄漏。

公开(公告)号：US5414736A

公开(公告)日：1995-05-09

申请号：US925673

申请日：1992-08-07

申请人： Makoto Hasegawa ,  Kazuaki Takahashi ,  Masahiro Mimura ,  Kazunori Watanabe ,  Katsushi Yokozaki ,  Hiroyuki Harada

发明人： Makoto Hasegawa ,  Kazuaki Takahashi ,  Masahiro Mimura ,  Kazunori Watanabe ,  Katsushi Yokozaki ,  Hiroyuki Harada

IPC分类号： H04L27/152 ,  H03D3/00

CPC分类号： H04L27/152

摘要： An FSK data receiving system is provided which is capable of constituting a direct-conversion receiver suitable for realizing an integrated circuit, is capable of decoding in a wide receiving band width, and is capable of realizing a small-sized and less-electric power consumption data receiving. An FSK-modulated local oscillator signal 3 is applied to a local oscillator 2, and there is provided a decode circuit 15 which obtains the decode signal 14 by judging whether the FSK-modulated frequency deviation of the carrier wave signal 1 is a positive deviation or a negative deviation on the basis of a comparison result of a voltage change in a frequency-voltage conversion circuit 16 for a base-band signal 8; i.e. the output signal of a frequency mixer 6. An offset amount of the local oscillator frequency is judged by a voltage judging circuit 17 to produce a control signal 18 Further, there is provided another decode circuit 22 which makes a judgement of frequency change of the base-band signal 8 and a judgement of in-phase/opposite-phase relationship from the decode signal 14 and the output of the voltage judging circuit 17 so as to obtain a decode signal 23. Moreover, there is provided a decode signal processing circuit 25 which obtains a decode signal 24 from the decode signals 14, 23 in response to the control signal 18.

摘要翻译： 提供一种FSK数据接收系统，其能够构成适合于实现集成电路的直接转换接收机，能够以宽的接收带宽进行解码，并且能够实现小型和小电力的功耗 数据接收。 FSK调制的本地振荡器信号3被施加到本地振荡器2，并且提供了解码电路15，其通过判断载波信号1的FSK调制的频率偏差是正偏差来获得解码信号14，或者 基于用于基带信号8的频率 - 电压转换电路16中的电压变化的比较结果的负偏差; 即混频器6的输出信号。本地振荡器频率的偏移量由电压判断电路17判定，以产生控制信号18。另外，还提供另一个解码电路22， 基带信号8和来自解码信号14和电压判断电路17的输出的同相/反相位关系的判断，以获得解码信号23.此外，提供了一种解码信号处理电路 25，其响应于控制信号18从解码信号14,23获得解码信号24。

公开(公告)号：US5293408A

公开(公告)日：1994-03-08

申请号：US942183

申请日：1992-09-09

申请人： Kazuaki Takahashi ,  Makoto Hasegawa ,  Katsushi Yokozaki ,  Yasumi Imagawa ,  Hiroyuki Harada ,  Masahiro Mimura ,  Yasuaki Namura

发明人： Kazuaki Takahashi ,  Makoto Hasegawa ,  Katsushi Yokozaki ,  Yasumi Imagawa ,  Hiroyuki Harada ,  Masahiro Mimura ,  Yasuaki Namura

IPC分类号： H04B1/30 ,  H04L27/152 ,  H04B1/10

CPC分类号： H04B1/30 ,  H04L27/152

摘要： A data receiving system comprising an I base-band signal and a Q base-band signal which are used in a quadrature demodulation operation. Zero-crossing points of respective base-band signals are detected and a control signal is generated in response to each zero-crossing point. A phase-shift switching circuit alternately selects either the I base-band signal or the Q base-band signal in response to the control signal to generate an I/Q base-band signal. And, a demodulation operation is executed on the basis of the I/Q signal.

摘要翻译： 一种数据接收系统，包括在正交解调操作中使用的I基带信号和Q基带信号。 检测各基带信号的过零点，并响应于每个过零点产生控制信号。 相移切换电路响应于控制信号交替地选择I基带信号或Q基带信号以产生I / Q基带信号。 并且，基于I / Q信号执行解调操作。

公开(公告)号：US08462202B2

公开(公告)日：2013-06-11

申请号：US12042838

申请日：2008-03-05

申请人： Kazuaki Takahashi

发明人： Kazuaki Takahashi

IPC分类号： H04N13/00 ,  A61B1/04

CPC分类号： A61B1/05 ,  A61B1/042 ,  A61B1/051 ,  A61B1/128

摘要： An imaging apparatus is provided and includes: a solid-state imaging device that receives image light of an observed portion inside of a coelom to output an imaging signal of the image light; a cover glass disposed above an light receiving surface of the solid-state imaging device so that the cover glass and the solid-state imaging device are separated with a space; and a first circuit board disposed at a vicinity of an upper surface of the cover glass and including a peripheral circuit of the solid-state imaging device, the first circuit board having a thermal conductivity lower than that of a reference circuit board whose major component is alumina, the imaging apparatus being included in a front end of an electronic endoscope.

摘要翻译： 提供了一种成像装置，包括：固态成像装置，其接收体内的观察部分的图像光，以输出图像光的成像信号; 设置在所述固态成像装置的光接收表面上方的盖玻璃，使得所述盖玻璃和所述固态成像装置以空间分开; 以及布置在所述盖玻璃的上表面附近并且包括所述固态成像装置的外围电路的第一电路板，所述第一电路板的导热率低于其主要成分为 氧化铝，成像装置包括在电子内窥镜的前端中。

公开(公告)号：US07940841B2

公开(公告)日：2011-05-10

申请号：US11718570

申请日：2005-11-04

申请人： Masahiro Mimura ,  Kazuaki Takahashi ,  Suguru Fujita ,  Yoshinori Kunieda ,  Noriyuki Ueki

发明人： Masahiro Mimura ,  Kazuaki Takahashi ,  Suguru Fujita ,  Yoshinori Kunieda ,  Noriyuki Ueki

IPC分类号： H03K7/04

CPC分类号： H04B1/7174 ,  H03K7/04 ,  H04B1/71635 ,  H04B1/71637 ,  H04B1/7176 ,  H04L25/4902 ,  H04L27/0004

摘要： A communication system includes a modulating circuit to increase the amount of information to be transmitted, a transmitting apparatus capable of easily generating a desired waveform even for any very short wavelets, a receiving apparatus capable of easily separating wavelets even if the intervals thereof are narrow. The modulating circuit includes clock generating, transmission signal generating, control signal generating, delay and wavelet generating parts. The clock generating part generates a clock signal at predetermined time interval “Tp”. The transmission signal generating part generates a transmission signal at interval “Tp”. The control signal generating part outputs a control signal of a predetermined duration based on the clock signal. The delay part generates the control signal as a delay signal that has been delayed by a delay amount based on the transmission signal. The wavelet generating part generates a wavelet at the generation timing of the delay signal.

摘要翻译： 一种通信系统包括：调制电路，用于增加要发送的信息量;即使对于任何非常短的小波也能够容易地产生期望的波形的发送装置，即使其间隔窄也能够容易地分离小波的接收装置。 调制电路包括时钟产生，发送信号产生，控制信号产生，延迟和小波发生部分。 时钟产生部分以预定时间间隔“Tp”产生时钟信号。 发送信号生成部以间隔“Tp”生成发送信号。 控制信号产生部分基于时钟信号输出预定持续时间的控制信号。 延迟部分产生作为延迟信号的控制信号，该延迟信号已经基于发送信号被延迟延迟量。 小波生成部在延迟信号的产生定时产生小波。

公开(公告)号：US20100166037A1

公开(公告)日：2010-07-01

申请号：US12377113

申请日：2007-10-10

申请人： Lei Soo Huang ,  Ping Luo ,  Suguru Fujita ,  Kazuaki Takahashi

发明人： Lei Soo Huang ,  Ping Luo ,  Suguru Fujita ,  Kazuaki Takahashi

IPC分类号： H04B1/69

CPC分类号： H04L27/0008 ,  H04B1/7176 ,  H04L27/02 ,  H04L27/18

摘要： A UWB transmission apparatus that, in a system using a mixture of amplitude and phase modulation schemes, can support both of the amplitude and phase modulation schemes, while preventing the signal powers of amplitude-modulated signals from degrading. In this UWB transmission apparatus, if the modulation mode is of QPSK, a mapping part (121) selects one of four signal points on the IQ plane in accordance with a 2-bit data, and outputs information related to the I- and Q-components of the selected signal point to a QPSK/ASK modulated signal forming part (122). If the modulation mode is of ASK, the mapping part (121) selects the origin point on the IQ plane when the data being ‘0’ and selects one of four signal points on the IQ plane, similarly to the case of QPSK modulation, when the data being ‘1,’ and outputs information, which is related to the selected signal point, to the QPSK/ASK modulated signal forming part (122).

摘要翻译： 一种UWB传输装置，其在使用幅度和相位调制方案的混合的系统中可以支持幅度和相位调制方案两者，同时防止幅度调制信号的信号功率降级。 在该UWB发送装置中，如果调制模式为QPSK，则映射部（121）根据2比特数据选择IQ平面上的四个信号点中的一个，并且输出与I和Q- 所选信号的分量指向QPSK / ASK调制信号形成部分（122）。 如果调制方式为ASK，映射部分（121）在数据为“0”时选择IQ平面上的原点，并选择IQ平面上的四个信号点中的一个，类似于QPSK调制的情况，当 数据为“1”，并将与所选信号点相关的信息输出到QPSK / ASK调制信号形成部分（122）。