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1. 发明授权

US5414635A Oscilloscope with dynamic triggering determination 失效
标题翻译：具有动态触发确定的示波器
公开(公告)号：US5414635A
公开(公告)日：1995-05-09
申请号：US970400
申请日：1992-11-02
申请人： Genichiro Ohta
发明人： Genichiro Ohta
IPC分类号： G01R13/32 , G01R13/28
CPC分类号： G01R13/32 , Y10S706/90
摘要： An oscilloscope in which an observer is freed from the troubles of triggering operations. Further, the processing speed of the oscilloscope is high, the number of errors is small, and it is also adequate to use a small memory capacity. Main period components included in a signal to be observed are extracted, waveforms regarding the extracted period components and information indicating with which period components the waveforms are triggered are displayed. The trigger can be varied to operate in response to other period components and the sweep time also can be varied.
摘要翻译：示波器，其中观察者免除触发操作的麻烦。此外，示波器的处理速度高，误差小，并且使用小的存储容量也足够。提取包含在要观察的信号中的主要周期分量，显示关于提取的周期分量的波形和指示哪些周期分量波形被触发的信息。可以改变触发以响应于其它周期分量而操作，并且扫描时间也可以变化。

2. 发明申请

US20070286301A1 Modulation Device, Modulation Method, and Demodulating Device 有权
标题翻译：调制装置，调制方式和解调装置
公开(公告)号：US20070286301A1
公开(公告)日：2007-12-13
申请号：US11597420
申请日：2005-05-24
申请人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
发明人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
IPC分类号： H04L5/12
CPC分类号： H04L27/2637 , H04L27/2649
摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.
摘要翻译：一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

3. 发明申请

US20220360299A1 TRANSMISSION/RECEPTION METHOD AND TRANSMISSION/RECEPTION SYSTEM 有权
公开(公告)号：US20220360299A1
公开(公告)日：2022-11-10
申请号：US17621659
申请日：2020-06-18
申请人： Genichiro Ohta
发明人： Genichiro Ohta
IPC分类号： H04B7/0413 , H04B7/06
摘要： A technique capable of realizing improvement of utilization efficiency of resources such as frequency with respect to MIMO, beam forming, and the like is provided. A transmission/reception method according to an embodiment is a transmission/reception method of transmitting and receiving data between a transmission device 1 with a plurality of transmitting antennas and a reception device 2 with a receiving antenna, and includes: a generating step of generating, by the transmission device 1 or the reception device 2, characteristics of a plurality of pseudo propagation channels on a basis of characteristics of a plurality of actual propagation channels between the plurality of transmitting antennas and the receiving antenna, the characteristics of the plurality of pseudo propagation channels being characteristics similar to frequency characteristics to an extent that the frequency characteristic can be approximated with respect to the characteristics of the plurality of actual propagation channels; a transmitting step of creating, by the transmission device 1, one or more data to be transmitted by reflecting the characteristics of the plurality of pseudo propagation channels to a plurality of parallel and independent data, and transmitting the one or more data from the plurality of transmitting antennas as radio waves; and a receiving step of extracting, by the reception device 2, the plurality of parallel and independent data from one or more received data received as the radio waves by the receiving antenna on a basis of the characteristics of the plurality of pseudo propagation channels.

4. 发明申请

US20210273839A1 TRANSMISSION/RECEPTION METHOD AND TRANSMISSION/RECEPTION SYSTEM 有权
公开(公告)号：US20210273839A1
公开(公告)日：2021-09-02
申请号：US17253931
申请日：2019-06-18
申请人： Maria Takigawa , Keisuke Hara , Genichiro Ohta
发明人： Maria Takigawa , Keisuke Hara , Genichiro Ohta
IPC分类号： H04L27/26 , H04L25/02 , H04L5/00 , H04B14/00
摘要： The present invention is a transmission/reception method in which a reception device measures propagation path characteristics of a communication propagation path, a transmission device generates, based on a measurement result of the propagation path characteristics, a plurality of pseudo propagation path characteristics having propagation path characteristics similar to the propagation path characteristics so as to have low mutual correlation, the transmission device generates a data group including a plurality of parallel and independent data in the same number as the plurality of pseudo propagation path characteristics in a baseband on a transmitting side, obtains a transmission signal by synthesizing a plurality of superimposed data generated by superimposing the pseudo propagation path characteristics on the data one by one, and transmits a plurality of pseudo propagation path characteristic information relating to the plurality of pseudo propagation path characteristics and the transmission signal, and the reception device receives the plurality of pseudo propagation path characteristic information transmitted antecedently from the transmission device and a communication signal transmitted subsequently, and individually extracts the plurality of data from the communication signal based on the plurality of pseudo propagation path characteristic information.

5. 发明授权

US5225791A Non-saturating complementary type unity gain amplifier 失效
标题翻译：非饱和互补型单位增益放大器
公开(公告)号：US5225791A
公开(公告)日：1993-07-06
申请号：US791382
申请日：1991-11-14
申请人： Genichiro Ohta
发明人： Genichiro Ohta
IPC分类号： H03F3/26 , H03F3/30 , H03F3/45
CPC分类号： H03F3/4508 , H03F3/3066 , H03F3/4521 , H03F2203/45151 , H03F2203/45166 , H03F2203/45202 , H03F2203/45221 , H03F2203/45278 , H03F2203/45366
摘要： An amplifier circuit which can operate at a high speed for both ascending and descending signals. An input signal are individually amplified by a first differential amplifier of an NPN transistor and a second differential amplifier of a PNP transistor. The anti-phase collector outputs from the differential amplifiers are inverted-amplified by the common emitter type amplifiers of the transistors having a polarity opposite to those of the differential amplifiers, as the in-phase component and anti-phase component are dealt with individually. Thus, the amplifier circuit can operate at a high speed for both ascending and descending signals.
摘要翻译：放大器电路，其可以以高速度操作上升和下降信号。输入信号由NPN晶体管的第一差分放大器和PNP晶体管的第二差分放大器单独放大。差分放大器的反相集电极输出由具有极性与差分放大器极性相反的晶体管的公共发射极型放大器进行反相放大，因为同相分量和反相分量被单独处理。因此，放大器电路可以以高速度操作上升和下降信号。

6. 发明授权

US4771193A Synchronizing circuit 失效
标题翻译：同步电路
公开(公告)号：US4771193A
公开(公告)日：1988-09-13
申请号：US945642
申请日：1986-12-23
申请人： Genichiro Ohta
发明人： Genichiro Ohta
IPC分类号： G01R13/32 , H03K4/10 , H03K4/86
CPC分类号： G01R13/32
摘要： A synchronizing circuit for an oscilloscope or the like, in which in the case where a sync input signal contains composite periods like a PCM signal or video signal, it is identified to generate a sync pulse. The change-over operation of variable time-constant range of the sync identification circuit is electronically automated to meet a wide range or period. Also, automatic sweep time change-over becomes possible by interlocking the sweep circuit time-constant switch to the output data.
摘要翻译：用于示波器等的同步电路，其中在同步输入信号包含诸如PCM信号或视频信号的合成周期的情况下，识别出其产生同步脉冲。同步识别电路的可变时间范围的转换操作是电子自动化的，以满足宽范围或周期。此外，通过将扫描电路时间常数开关与输出数据互锁，可以实现自动扫描时间切换。

7. 发明授权

US11271789B2 Transmission/reception method and transmission/reception system 有权
公开(公告)号：US11271789B2
公开(公告)日：2022-03-08
申请号：US17253931
申请日：2019-06-18
申请人： Maria Takigawa , Keisuke Hara , Genichiro Ohta
发明人： Maria Takigawa , Keisuke Hara , Genichiro Ohta
IPC分类号： H04L27/26 , H04B14/00 , H04L5/00 , H04L25/02
摘要： The present invention is a transmission/reception method in which a reception device measures propagation path characteristics of a communication propagation path, a transmission device generates, based on a measurement result of the propagation path characteristics, a plurality of pseudo propagation path characteristics having propagation path characteristics similar to the propagation path characteristics so as to have low mutual correlation, the transmission device generates a data group including a plurality of parallel and independent data in the same number as the plurality of pseudo propagation path characteristics in a baseband on a transmitting side, obtains a transmission signal by synthesizing a plurality of superimposed data generated by superimposing the pseudo propagation path characteristics on the data one by one, and transmits a plurality of pseudo propagation path characteristic information relating to the plurality of pseudo propagation path characteristics and the transmission signal, and the reception device receives the plurality of pseudo propagation path characteristic information transmitted antecedently from the transmission device and a communication signal transmitted subsequently, and individually extracts the plurality of data from the communication signal based on the plurality of pseudo propagation path characteristic information.

8. 发明授权

US07936811B2 Modulation apparatus, modulation method, and demodulation apparatus 有权
标题翻译：调制装置，调制方法和解调装置
公开(公告)号：US07936811B2
公开(公告)日：2011-05-03
申请号：US11597420
申请日：2005-05-24
申请人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
发明人： Genichiro Ohta , Daichi Imamura , Keiji Takakusaki , Mitsuru Uesugi
IPC分类号： H04L27/00 , H04L25/03
CPC分类号： H04L27/2637 , H04L27/2649
摘要： A modulating device capable of generating an OFDM signal and having a drastically improved frequency use efficiency. The modulating device has modulators (6, 8 (11, 13, 106, 108, 111, 113)) for modulating a signal to be modulated and having a Nyquist roll-off frequency characteristic with a carrier frequency having a difference two times the Nyquist frequency and combiners (10(15, 110, 115)) for generating modulation output having a speed two times that of the signal to demodulated and the same Nyquist roll-off slope as the signal to be modulated by combining the outputs of the modulators (6, 8 (11, 13, 106, 108, 111, 113)). Thus a double speed wave can be superposed on the same frequency without varying the roll-off slope of the Nyquist characteristic, and therefore an OFDM signal (19) having a drastically improved frequency use efficiency is provided.
摘要翻译：一种调制装置，能够产生OFDM信号并具有显着提高的频率使用效率。调制装置具有用于调制要调制的信号并且具有奈奎斯特滚降频率特性的调制器（6,8（11,13,106,108,111,113）），其载波频率的差值是奈奎斯特频率和组合器（10（15,110,115）），用于产生具有要解调的信号的速度的两倍的调制输出和与要调制的信号相同的奈奎斯特滚降斜率（通过组合调制器的输出） 6，8（11，13，106，108，111，113））。因此，可以将双速波叠加在同一频率上，而不改变奈奎斯特特性的滚降斜率，因此提供了频率提高的频率使用效率的OFDM信号（19）。

9. 发明授权

US07633458B2 Antenna assembly and multibeam antenna assembly 失效
标题翻译：天线组件和多波束天线组件
公开(公告)号：US07633458B2
公开(公告)日：2009-12-15
申请号：US11574816
申请日：2005-07-21
申请人： Hiroyuki Uno , Yutaka Saito , Genichiro Ohta , Yoshio Koyanagi
发明人： Hiroyuki Uno , Yutaka Saito , Genichiro Ohta , Yoshio Koyanagi
IPC分类号： H01Q3/24 , H01Q13/10
CPC分类号： H01Q3/06 , H01Q3/24 , H01Q13/10 , H01Q19/30 , H01Q21/064 , H01Q21/24 , H01Q25/00
摘要： Provided is an antenna which has a small-sized planar constitution as can be easily mounted on a small-sized radio device and which can form a principal beam having a vertical polarization in directions of low and high elevation angles.On the surface of a substrate 11, slot elements 13A and 13B having a length of about one half wavelength are arranged in parallel at a predetermined distance d1, and a reflecting plate 14 is arranged at a predetermined distance h from the mounting face of the slot elements 13A and 13B. On the back of the substrate 11, parasitic elements 15A to 15D are made of a copper foil pattern and are arrayed to intersect the slot elements 13A and 13B at right angles. A switching element 16A is connected with the parasitic elements 15A and 15B, and a switching element 16B is connected with the parasitic elements 15C and 15D.
摘要翻译：提供一种具有小型平面结构的天线，可以容易地安装在小型无线电设备上，并且可以在低仰角和高仰角的方向上形成具有垂直极化的主波束。在基板11的表面上，具有约半个波长的长度的槽元件13A和13B以预定距离d1平行布置，并且反射板14布置成距离槽的安装面预定的距离h 元件13A和13B。在基板11的背面，寄生元件15A〜15D由铜箔图案构成，排列成与槽元件13A，13B成直角相交。开关元件16A与寄生元件15A和15B连接，并且开关元件16B与寄生元件15C和15D连接。

10. 发明申请

US20090022050A1 OFDM MODULATION DEVICE, OFDM DEMODULATION DEVICE, OFDM MODULATION METHOD, AND OFDM DEMODULATION METHOD 审中-公开
标题翻译： OFDM调制装置，OFDM解调装置，OFDM调制方法和OFDM解调方法
公开(公告)号：US20090022050A1
公开(公告)日：2009-01-22
申请号：US11814565
申请日：2006-01-23
申请人： Genichiro Ohta
发明人： Genichiro Ohta
IPC分类号： H04J11/00
CPC分类号： H04L27/2602 , H04L5/0007 , H04L27/2626
摘要： It is possible to form an OFDM signal improving frequency use efficiency. An OFDM modulation apparatus includes Nyquist filters (104, 126) for Nyquist-shaping signals (S10, S20) of two systems, delay apparatuses (123, 124) for delaying a signal of one system at ½ of the symbol period T, inverse Fourier transformers (105, 127) for OFDM-processing the respective signals after the Nyquist formation, and a switching section (130) combining the signals of the two systems by selectively outputting the signals of the two systems subjected to the OFDM processing while switching the signals at a ½ interval of the symbol period. Thus, it is possible to multiplex the two OFDM signals without interfering each other. As a result, it is possible to realize an OFDM modulation device (100) reaching twice as much as frequency use efficiency as compared to the conventional OFDM signal (i.e., reaching twice as much as the information transmission with the same frequency band as the conventional one.)
摘要翻译：可以形成提高频率使用效率的OFDM信号。 OFDM调制装置包括用于两个系统的奈奎斯特整形信号（S10，S20）的奈奎斯特滤波器（104,126），用于将符号周期T的1/2的一个系统的信号延迟的延迟装置（123,124）变压器（105,127），用于在奈奎斯特形成之后对各个信号进行OFDM处理;以及切换部分（130），通过选择性地输出经受OFDM处理的两个系统的信号来组合两个系统的信号，同时切换信号在符号周期的1/2间隔。因此，可以在不干扰彼此的情况下复用两个OFDM信号。结果，与传统的OFDM信号相比，可以实现达到频率使用效率的两倍的OFDM调制装置（100）（即，达到与以往相同的频带的信息传输的两倍）一。）

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