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1. 发明授权

US5859570A Frequency synthesizer using divided and frequency converted DDS signal as reference for PLL 失效
标题翻译：频率合成器采用分频和变频DDS信号作为PLL的参考
公开(公告)号：US5859570A
公开(公告)日：1999-01-12
申请号：US910014
申请日：1997-08-12
申请人： Kenji Itoh , Ken'ichi Tajima , Shuji Nishimura , Akio Iida
发明人： Kenji Itoh , Ken'ichi Tajima , Shuji Nishimura , Akio Iida
IPC分类号： H03B28/00 , H03D7/16 , H03J7/06 , H03L7/107 , H03L7/16 , H03L7/18 , H03L7/183 , H03L7/185 , H03L7/23 , H04B1/26 , H04B1/30 , H04B1/3822 , H04B1/40 , H03L7/06
CPC分类号： H03L7/107 , H03D7/161 , H03L7/1806 , H03L7/23
摘要： A frequency synthesizer having reduced spurious components for use in a receiving and transmitting apparatus. The frequency synthesizer includes a direct digital synthesizer (DDS) for generating a first signal having a first frequency determined by channel setting data. The first signal is applied to a frequency divider to generate a divided signal having a divided frequency. The divided signal is applied to a frequency converter for shifting the divided frequency by a shift frequency interval to provide a reference signal having a reference frequency. The reference signal is applied to a phase locked loop (PLL) for generating a final signal having a predetermined frequency characteristic.
摘要翻译：一种频率合成器，其具有减少的用于接收和发送装置中的杂散分量。频率合成器包括用于产生具有由频道设置数据确定的第一频率的第一信号的直接数字合成器（DDS）。第一信号被施加到分频器以产生具有分频的分频信号。分频信号被施加到频率转换器，用于将分频频率移位移位频率间隔，以提供具有参考频率的参考信号。参考信号被施加到用于产生具有预定频率特性的最终信号的锁相环（PLL）。

2. 发明授权

US6154640A Method and apparatus for communication and signal synthesis 失效
标题翻译：用于通信和信号合成的方法和装置
公开(公告)号：US6154640A
公开(公告)日：2000-11-28
申请号：US532049
申请日：1995-09-21
申请人： Kenji Itoh , Ken'ichi Tajima , Shuji Nishimura , Akio Iida
发明人： Kenji Itoh , Ken'ichi Tajima , Shuji Nishimura , Akio Iida
IPC分类号： H03B28/00 , H03D7/16 , H03J7/06 , H03L7/107 , H03L7/16 , H03L7/18 , H03L7/183 , H03L7/185 , H03L7/23 , H04B1/26 , H04B1/30 , H04B1/3822 , H04B1/40 , H01Q11/12
CPC分类号： H03L7/107 , H03D7/161 , H03L7/1806 , H03L7/23
摘要： In a receiving and transmitting apparatus, a frequency of a direct digital synthesizer provided in a local oscillating circuit is controlled in order to reduce a frequency error, based on data of a frequency error detecting circuit. The direct digital synthesizer includes a digital operation circuit for inputting data designating the frequency and outputting an amplitude value of a periodic signal synchronous with a reference clock, and digital-analog converter for converting the amplitude value of the periodic signal to an analog signal.
摘要翻译：在接收和发送装置中，基于频率误差检测电路的数据，控制设置在本地振荡电路中的直接数字合成器的频率，以便减少频率误差。直接数字合成器包括数字运算电路，用于输入指定频率的数据并输出与参考时钟同步的周期信号的振幅值;以及数模转换器，用于将周期信号的振幅值转换为模拟信号。

3. 发明授权

US5801589A Frequency synthesizer which suppresses a spurious 失效
标题翻译：频率合成器抑制杂散
公开(公告)号：US5801589A
公开(公告)日：1998-09-01
申请号：US781519
申请日：1997-01-09
申请人： Kenichi Tajima , Kenji Itoh , Shuji Nishimura , Masayuki Doi , Akio Iida
发明人： Kenichi Tajima , Kenji Itoh , Shuji Nishimura , Masayuki Doi , Akio Iida
IPC分类号： H03B28/00 , H03L7/18 , H03L7/183 , H03L7/00 , H03B27/00
CPC分类号： H03L7/1806
摘要： A variable divider in which a dividing number setting parameter can be set is provided in a reference oscillator. When a frequency setting parameter is selected so that a DDS will not output a spurious at a specified level or at a level higher than the specified level within an output band of an PLL in response to an output frequency from the PLL, both a conversion function setting parameter for a variable divider in the PLL and a dividing number setting parameter for a variable divider in the reference oscillator are adjusted so that the output frequency and the selected frequency setting parameter are satisfied.
摘要翻译：在基准振荡器中设置有可以设定分频数设定参数的可变分频器。当选择频率设定参数时，响应于来自PLL的输出频率，DDS将不会以PLL的输出频带内的指定电平或高于指定电平的电平输出杂散，转换功能对PLL中的可变分频器的设定参数和参考振荡器中的可变分频器的分频数设定参数进行调整，使得输出频率和所选择的频率设定参数得到满足。

4. 发明授权

US5787126A Detector and receiving and transmitting apparatus 失效
标题翻译：检测器和接收和发送装置
公开(公告)号：US5787126A
公开(公告)日：1998-07-28
申请号：US597708
申请日：1996-02-07
申请人： Kenji Itoh , Mitsuhiro Shimozawa , Kenji Kawakami , Noriharu Suematsu , Akio Iida
发明人： Kenji Itoh , Mitsuhiro Shimozawa , Kenji Kawakami , Noriharu Suematsu , Akio Iida
IPC分类号： H03D1/22 , H03B19/00 , H03C3/00 , H03D3/02 , H03D7/16 , H04B1/02 , H04B1/06 , H04B1/30 , H04L27/20 , H04L27/22 , H04L27/38
CPC分类号： H03D7/165 , H03B19/00
摘要： The detector comprises a first distributor for distributing a signal wave, a 45 degree shifter for shifting a local oscillation, a first even harmonic mixer and a second even harmonic mixer for generating a mixed wave between a double frequency wave of said local oscillation wave and said signal wave. The present invention can be used for increasing the accuracy and downsizing of quadrature mixer used in a receiving transmitting apparatus of a wireless communication system.
摘要翻译：检测器包括用于分配信号波的第一分配器，用于移位本地振荡的45度移位器，第一偶次谐波混合器和第二偶次谐波混合器，用于产生所述局部振荡波的双频波与所述局部振荡波的双频波之间的混合波信号波。本发明可以用于提高在无线通信系统的接收发送装置中使用的正交混频器的精度和小型化。

5. 发明授权

US5184093A Frequency synthesizer 失效
标题翻译：频率合成器
公开(公告)号：US5184093A
公开(公告)日：1993-02-02
申请号：US840937
申请日：1992-02-25
申请人： Kenji Itoh , Akio Iida , Shuji Urasaki
发明人： Kenji Itoh , Akio Iida , Shuji Urasaki
IPC分类号： H03L7/18 , H03L7/185
CPC分类号： H03L7/18 , H03L7/1806 , H03L7/185
摘要： A frequency synthesizer, including a direct digital synthesizer (DDS) for providing wave amplitude data as a standard signal source, and a phase lock loop for comparing a branched synthesizer frequency with the standard signal source at a phase comparator. A frequency converter converts the output frequency of the DDS to a higher frequency and provides the resultant higher frequency to the phase comparator in the phase loop. A small loop dividing ratio is obtained by converting the low frequency of the DDS to a higher frequency. A spurious of the synthesizer output signal is reduced and provides a low power consumption apparatus.
摘要翻译：一种频率合成器，包括用于提供波幅数据作为标准信号源的直接数字合成器（DDS）和用于在分相合成器频率与相位比较器上的标准信号源进行比较的锁相环。变频器将DDS的输出频率转换为更高的频率，并在相位环路中将相应的较高频率提供给相位比较器。通过将DDS的低频转换为更高的频率来获得小的环路分频比。减少合成器输出信号的杂散，并提供低功耗设备。

6. 发明授权

US5809409A Balanced mixer, distributer and band rejection filter for use in same, and frequency mixing method 失效
标题翻译：平衡混频器，分配器和带阻滤波器用于相同的频率混频方法
公开(公告)号：US5809409A
公开(公告)日：1998-09-15
申请号：US330427
申请日：1994-10-27
申请人： Kenji Itoh , Tomonori Sigematsu , Akio Iida
发明人： Kenji Itoh , Tomonori Sigematsu , Akio Iida
IPC分类号： H01P5/10 , H03D7/12 , H03D7/14 , H03D9/06 , H04B1/16 , H01P3/08 , H03D7/18
CPC分类号： H03D9/0675 , H03D2200/009 , H03D7/125 , H03D7/14
摘要： In order to further suppress unwanted waves which may occur when the frequency (flo) of a local oscillation wave is lower than the frequency (fin) of a signal wave, the local oscillation wave is in-phase distributed between unit mixers (2a) and (2b) whereas the signal wave is opposite-phase distributed through a 180 degree distributer (4) to the unit mixers (2a) and (2b). The unit mixers (2a) and (2b) execute frequency mixing of thus distributed local oscillation wave and signal wave, and supply the result through a BRF (16a) or (16b) into a 180 degree combiner (6). The 180 degree combiner (6) effects an opposite-phase combination of outputs of the BRFs (16a) and (16b), and outputs the result. Among the unwanted waves, harmonics of the local oscillation wave are suppressed by the opposite-phase combination, the signal wave is suppressed by virtue of the BRFs (16a) and (16b), and a mixed wave of the harmonics of the local oscillation wave and harmonics of the signal wave is suppressed by the in-phase distribution of the local oscillation wave and the opposite-phase distribution of the signal wave.
摘要翻译：为了进一步抑制当本地振荡波的频率（flo）低于信号波的频率（fin））时可能发生的有害波，局部振荡波同相分布在单元混频器（2a）和（2b），而信号波通过180度分配器（4）反相分配到单元混合器（2a）和（2b）。单元混合器（2a）和（2b）执行这样分布的局部振荡波和信号波的频率混合，并将结果通过BRF（16a）或（16b）提供给180度组合器（6）。 180度组合器（6）实现BRF（16a）和（16b）的输出的反相组合，并输出结果。在不需要的波中，通过反相组合来抑制局部振荡波的谐波，通过BRF（16a）和（16b）来抑制信号波，并且本地振荡波的谐波的混合波并且信号波的谐波被本地振荡波的同相分布和信号波的相位分布抑制。

7. 发明授权

US5689819A Transmitter-receiver 失效
标题翻译：发射机 - 接收机
公开(公告)号：US5689819A
公开(公告)日：1997-11-18
申请号：US562066
申请日：1995-11-22
申请人： Shuji Nishimura , Kenji Itoh
发明人： Shuji Nishimura , Kenji Itoh
IPC分类号： H04B1/50 , H03D7/16 , H04B1/3822 , H04B15/00 , H04B1/40
CPC分类号： H04B1/40 , H03D7/163
摘要： In a transmitter-receiver having a transmitting circuit and a receiving circuit, the present invention mitigates an interference between the transmitting circuit and the receiving circuit. A quartz-crystal oscillator is provided as a common reference signal source for the local oscillators and the relation among frequencies is determined so that the frequencies such as local oscillating frequencies and intermediate frequencies within the transmitter-receiver do not overlap each other. Interferences between the transmitting circuit and the receiving circuit are mitigated to prevent a characteristic deterioration, spurious radiation, etc. Thereby the transmitter-receiver may be reduced in size and weight. Further, by sharing a quartz-crystal oscillator having a high frequency stability, narrowing of bands in radio channel spacing may be readily achieved.
摘要翻译：在具有发射电路和接收电路的发射机 - 接收机中，本发明减轻了发射电路和接收电路之间的干扰。提供石英振荡器作为本地振荡器的公共参考信号源，并且确定频率之间的关系，使得诸如发射机 - 接收机内的本地振荡频率和中频的频率彼此不重叠。减轻了发射电路和接收电路之间的干扰，以防止特性劣化，杂散辐射等。从而可以减小发射机和接收机的尺寸和重量。此外，通过共享具有高频稳定性的石英晶体振荡器，可以容易地实现无线电信道间隔中的频带变窄。

8. 发明授权

US08241558B2 High-Cr, high-Ni, heat-resistant, austenitic cast steel and exhaust equipment members formed thereby 有权
标题翻译：高Cr，高Ni，耐热，奥氏体铸钢和由此形成的排气设备构件
公开(公告)号：US08241558B2
公开(公告)日：2012-08-14
申请号：US11568076
申请日：2005-04-19
申请人： Keijiro Hayashi , Kenji Itoh , Akinaga Odaira , Koki Otsuka
发明人： Keijiro Hayashi , Kenji Itoh , Akinaga Odaira , Koki Otsuka
IPC分类号： C22C38/22
CPC分类号： C22C38/02 , C22C38/001 , C22C38/002 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/44 , C22C38/48 , C22C38/58 , C22C38/60 , F01N13/16 , F01N13/1861 , F01N2530/04
摘要： A high-Cr, high-Ni, heat-resistant, austenitic cast steel comprises as main components C, Si, Mn, Cr, Ni, W and/or Mo, and Nb, the balance being substantially Fe and inevitable impurities, N being 0.01-0.5%, Al being 0.23% or less, and O being 0.07% or less by weight. Exhaust equipment members are produced by using this high-Cr, high-Ni, heat-resistant, austenitic cast steel.
摘要翻译：高Cr，高Ni，耐热奥氏体铸钢主要成分为C，Si，Mn，Cr，Ni，W和/或Mo，Nb为余量，实质上为Fe和不可避免的杂质，N为 0.01-0.5％，Al为0.23％以下，O为0.07重量％以下。使用这种高Cr，高Ni，耐热的奥氏体铸钢制造排气设备构件。

9. 发明授权

US08145384B2 Lubricating oil cooling device for traveling speed reduction gear 有权
标题翻译：用于行走减速装置的润滑油冷却装置
公开(公告)号：US08145384B2
公开(公告)日：2012-03-27
申请号：US12615545
申请日：2009-11-10
申请人： Takayoshi Murahashi , Osamu Murakami , Kenji Itoh
发明人： Takayoshi Murahashi , Osamu Murakami , Kenji Itoh
IPC分类号： B60K17/14 , B60K11/02
CPC分类号： F16H57/0434 , B60K17/046
摘要： The present invention provides a traveling speed reduction gear lubricating oil cooling device that enables optimal temperature control for lubricating oil delivered via a lubricating oil pump that can be started up with a relatively small motor without running the risk of damage to an oil cooler in a cold work environment even when a temperature sensor that detects the temperature of the lubricating oil is installed outside a wheel mounting sleeve. During a startup operation, provided that the detected temperature at a traveling motor is higher than the reference temperature, the lubricating oil pump is driven at a speed in a lower speed range relative to the normal operation speed range. In addition, during the startup operation, the rotation speed of the drive motor for the lubricating oil pump is increased in correspondence to a rise in the temperature detected by a lubricating oil temperature detection sensor.
摘要翻译：本发明提供了一种行驶减速齿轮润滑油冷却装置，其能够对通过润滑油泵输送的润滑油进行最佳温度控制，所述润滑油可以用相对较小的电动机起动，而不会在冷气中产生损坏的油冷却器的风险即使将检测到润滑油的温度的温度传感器安装在车轮安装套筒外部的工作环境中。在启动操作期间，只要行驶马达的检测温度高于参考温度，则润滑油泵以相对于正常运行速度范围的较低速度范围内的速度被驱动。此外，在启动运转中，与润滑油温度检测传感器检测出的温度升高对应地，润滑油泵的驱动电动机的转速增加。

10. 发明申请

US20120068935A1 INFORMATION INPUT DEVICE, CONTROL METHOD THEREOF AND IMAGE PROCESSING APPARATUS 审中-公开
标题翻译：信息输入装置，其控制方法和图像处理装置
公开(公告)号：US20120068935A1
公开(公告)日：2012-03-22
申请号：US13237995
申请日：2011-09-21
申请人： Takeshi MUTOH , Kenji Itoh
发明人： Takeshi MUTOH , Kenji Itoh
IPC分类号： G06F3/02
CPC分类号： H04N1/00482 , H04N1/00411 , H04N1/00424 , H04N1/00474 , H04N1/00514 , H04N1/0097 , H04N1/4413 , H04N1/4433 , H04N2201/0094
摘要： An information input device includes a display unit that has a display screen and displays an image, and a touch-panel that is arranged on the display screen and specifies a designated position on the display screen. The display unit displays any of first, second and third screen images depending on the state of information input device, and the first and third screen images have a prescribed area on which information including the same character, sign or figure is displayed. If a position in the prescribed area is specified by an input unit while the first screen image is being displayed, the display unit displays the second screen image, and if a position in the prescribed area is specified while the third screen image is being displayed, the display unit maintains the display of the third screen image
摘要翻译：信息输入装置包括具有显示屏幕并显示图像的显示单元和布置在显示屏上并指定显示屏上的指定位置的触摸面板。显示单元根据信息输入装置的状态显示第一，第二和第三屏幕图像中的任何一个，并且第一和第三屏幕图像具有显示包括相同字符，符号或图形的信息的规定区域。如果在显示第一屏幕图像的同时由输入单元指定了规定区域中的位置，则显示单元显示第二屏幕图像，并且如果在显示第三屏幕图像时指定了规定区域中的位置，显示单元保持第三屏幕图像的显示

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