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1. 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。

2. 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）。

3. 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。

4. 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。

5. 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。

6. 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。

7. 发明授权

US4449733A Elevationally adjustable fluid suspension system for a wheel tractor scraper or the like 失效
标题翻译：用于轮式拖拉机刮刀等的高度可调的流体悬架系统
公开(公告)号：US4449733A
公开(公告)日：1984-05-22
申请号：US333473
申请日：1981-12-22
申请人： Akio Iida , Osamu Kurihara
发明人： Akio Iida , Osamu Kurihara
IPC分类号： B60G17/00 , B60G17/015 , B60G17/016 , B60G17/056 , E02F3/65 , B60G11/26
CPC分类号： E02F3/6454 , B60G17/016 , E02F3/651 , E02F3/652 , B60G2300/082 , B60G2400/252 , B60G2500/30 , B60G2600/02
摘要： In a tractor-scraper combination having a single-axle two-wheel tractor and an earthmoving scraper articulately joined together, one or two hydraulic suspension jacks are operatively connected between the axle and main frame of the tractor for varying the distance therebetween in accordance with the loaded or empty state of the scraper. Connected between each suspension jack and a pump, a leveling valve normally communicates the pump with some other hydraulic system of the vehicle and, on actuation, selectively communicates the suspension jack with the pump and with a fluid drain. When the bowl of the scraper becomes loaded or unloaded, a pressure sensor connected to a bowl jack actuates a timer, causing same to allow energization of an elevation sensor connected between the axle and main frame of the tractor. The energized elevation sensor puts out a signal representative of the elevation of the tractor main frame above the axle. A solenoid valve responds to the elevation sensor signal by causing a double-acting air cylinder to actuate the leveling valve, with the consequent leveling of the vehicle by the suspension jack. An accumulator in communication with the suspension jack absorbs the normal dynamic motion of the vehicle during travel.
摘要翻译：在具有单轴两轮拖拉机和铰接连接在一起的移土刮板的拖拉机 - 刮刀组合中，一个或两个液压悬挂千斤顶可操作地连接在拖拉机的轴和主框架之间，以根据装载或空状态的刮刀。连接在每个悬挂千斤顶和泵之间，调平阀通常将泵与车辆的其他一些液压系统连通，并且在致动时，选择性地将悬挂千斤顶与泵和流体排放器连通。当刮板的碗装载或卸载时，连接到碗式起重器的压力传感器致动定时器，使得定时器能够使连接在拖拉机的轴和主框架之间的升降传感器通电。通电的仰角传感器输出代表牵引车主机架在轴上方的高度的信号。电磁阀通过使双作用气缸致动调平阀来响应升降传感器信号，随后由悬架千斤顶调平车辆。与悬挂起重器连通的蓄能器在行驶期间吸收车辆的正常动态运动。

8. 发明授权

US4071108A Steering system for articulated vehicles 失效
标题翻译：铰接车辆转向系统
公开(公告)号：US4071108A
公开(公告)日：1978-01-31
申请号：US753227
申请日：1976-12-22
申请人： Akio Iida
发明人： Akio Iida
IPC分类号： B62D12/00 , B62D5/06
CPC分类号： B62D12/00
摘要： An articulated vehicle has a pair of hydraulic steering cylinders for causing angular motion of a forward vehicle portion relative to its rearward portion under the control of a steering control valve which is actuated from a steering wheel via a linkage system. Arranged between the steering cylinders and the steering control valve are a pair of flow dividers which upon actuation of the steering cylinders operate to selectively deliver part of the hydraulic fluid drained therefrom to the opposed fluid chambers of a follow-up cylinder having its piston rod coupled to the linkage system. The follow-up cylinder when thus actuated causes the linkage system to return the steering control valve to neutral. In an alternate embodiment of the invention the flow dividers are replaced by hydraulic motors which on selective actuation drive respective pumps communicating with the fluid chambers of the follow-up cylinder.
摘要翻译：铰接式车辆具有一对液压转向缸，用于在通过连杆系统从方向盘致动的转向控制阀的控制下相对于其后部引起前方车辆部分的角运动。在转向油缸和转向控制阀之间布置的是一对分流器，其在转向缸的致动时操作以选择性地将从其排出的液压流体的一部分输送到后续缸的相对的流体室，其具有联接的活塞杆到联动系统。当这样致动时，跟随气缸使得连动系统将转向控制阀返回到中立位置。在本发明的替代实施例中，分流器由液压马达代替，液压马达在选择性驱动下驱动与后续气缸的流体腔相通的相应泵。

9. 发明授权

US07432392B2 Ester derivatives and medical use thereof 失效
标题翻译：酯衍生物及其医疗用途
公开(公告)号：US07432392B2
公开(公告)日：2008-10-07
申请号：US11362375
申请日：2006-02-27
申请人： Atsushi Hagiwara , Taku Ikenogami , Yasuko Mera , Yukako Sumida , Akio Iida , Toshio Taniguchi , Mitsuru Takahashi
发明人： Atsushi Hagiwara , Taku Ikenogami , Yasuko Mera , Yukako Sumida , Akio Iida , Toshio Taniguchi , Mitsuru Takahashi
IPC分类号： C07C69/34 , C07C69/66 , A01N47/06 , A61K31/21
CPC分类号： C07D241/44 , C07C233/81 , C07D209/08 , C07D213/55 , C07D213/81 , C07D213/82 , C07D239/42 , C07D277/30 , C07D295/192 , C07D333/24 , C07D409/12 , C07D413/12
摘要： A therapeutic agent for hyperlipidemia which has no side effects on the liver unlike conventional MTP inhibitors and has excellent MTP inhibitory activity. Also, provided is an ester compound represented by the general formula (1): or a pharmaceutically acceptable salt thereof.
摘要翻译：与常规MTP抑制剂不同，对肝脏没有副作用且具有优异的MTP抑制活性的高脂血症治疗剂。此外，提供由通式（1）表示的酯化合物：或其药学上可接受的盐。

10. 发明授权

US4241702A Noise-proof and air-cooled enclosure for an engine 失效
标题翻译：用于发动机的隔音和风冷外壳
公开(公告)号：US4241702A
公开(公告)日：1980-12-30
申请号：US858394
申请日：1977-12-07
申请人： Sadatoshi Takeuchi , Akio Iida , Kimio Miyake , Mitsuhisa Sakae
发明人： Sadatoshi Takeuchi , Akio Iida , Kimio Miyake , Mitsuhisa Sakae
IPC分类号： B60K11/08 , B60R13/08 , B62D25/10 , B62D49/06 , F02B77/13 , F01P1/02
CPC分类号： F02B77/13 , B60K11/08 , B60R13/0838 , B60R13/0846 , B60R13/0884 , B62D25/10 , B62D49/06
摘要： A noise-proof and air-cooled enclosure system for an engine comprising a radiator compartment, a generally enclosed engine compartment separated from said radiator compartment by a partition wall, said radiator compartment being arranged sideways with respect to said engine compartment, and an ejector utilizing the flow of gases from an engine exhaust pipe for creating a relatively low pressure within an air outlet from said engine compartment to draw ambient cooling air through said radiator compartment into said engine compartment around said engine and out of said air outlet.
摘要翻译：一种用于发动机的防噪声和空气冷却的外壳系统，包括散热器隔室，通过分隔壁与所述散热器隔室分开的通常封闭的发动机舱，所述散热器隔室相对于所述发动机舱侧向设置，并且喷射器利用来自发动机排气管的气体流，用于在来自所述发动机舱的空气出口内产生相对较低的压力，以将环境冷却空气通过所述散热器隔室引入围绕所述发动机的所述发动机舱并且离开所述空气出口。

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