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1.发明授权Method for optical resolution of DL-cysteine and (R,S)-1-(1-naphthyl) ethylamine 失效DL-半胱氨酸和（R，S）-1-（1-萘基）乙胺的光学拆分方法
公开(公告)号：US4736060A
公开(公告)日：1988-04-05
申请号：US892059
申请日：1986-08-01
IPC分类号： C07D277/06 , C07B57/00
CPC分类号： C07D277/06
摘要： Method for optical resolution of DL-cysteine by (1) reacting DL-cysteine with formaldehyde to prepare DL-thiazolidine-4-carboxylic acid (DL-TCA), (2) forming diastereomer salts of D-TCA and of L-TCA by reacting DL-TCA with an optically active 1-(1-naphthyl)ethylamine, (3) separating said diastereomer salts by difference of the solubilities thereof in a solvent, (4) recovering D-TCA from said diastereomer salt of D-TCA and finally obtain D-cysteine, and recovering L-TCA from said diastereomer salt of L-TCA and finally obtain L-cysteine.Method for optical resolution of (R,S)-1-(1-naphthyl)ethylamine (R,S)-NEA by (1) reacting an optically active cysteine with formaldehyde to prepare an optically active thiazolidine-4-carboxylic acid, (2) forming diastereomer salts of (R)-NEA and of (S)-NEA by reacting (R,S)-NEA with optically active thiazolidine-4-carboxylic acid, (3) separating said diastereomer salts of (R)-NEA and of (S)-NEA by difference of the solubilities thereof in a solvent, (4) recovering (R)-NEA from said diastereomer salt of (R)-NEA, and recovering (S)-NEA from said diastereomer salt of (S)-NEA.
摘要翻译： （1）使DL-半胱氨酸与甲醛反应以制备DL-噻唑烷-4-羧酸（DL-TCA），（2）形成D-TCA和L-TCA的非对映异构体盐的方法，通过 使DL-TCA与光学活性1-（1-萘基）乙胺反应，（3）通过溶剂中溶解度的差异分离所述非对映异构体盐，（4）从D-TCA的非对映体盐中回收D-TCA和 最后得到D-半胱氨酸，从L-TCA的非对映异构体盐中回收L-TCA，最后得到L-半胱氨酸。 （1）将光学活性半胱氨酸与甲醛反应制备光学活性噻唑烷-4-羧酸的（R，S）-1-（1-萘基）乙胺（R，S）-NEA的光学拆分方法， 2）通过使（R，S）-NEA与光学活性噻唑烷-4-羧酸反应形成（R）-NEA和（S）-NEA的非对映异构体盐，（3）将（R）-NEA的所述非对映异构体盐 和（S）-NEA的溶解度的差异，（4）从（R）-NEA的所述非对映体盐中回收（R）-NEA，并从（R）-NEA的所述非对映异构体盐中回收（S）-NEA S）-NEA。
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公开(公告)号：US4820995A
公开(公告)日：1989-04-11
申请号：US193835
申请日：1988-05-13
申请人： Yoshiharu Tamura
发明人： Yoshiharu Tamura
CPC分类号： H03D1/10 , H03D2200/0043 , H03D2200/0096
摘要： A temperature stabilized RF detector uses a series circuit including a detecting diode coupled in series with a similarly poled stabilizing diode so that a single current flows in a single direction through both diodes. The temperature related effects of the two diodes are mutually balancing so that temperature variations in the detecting diode do not adversely affect the detection of an RF signal.
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3.发明授权Portable radio apparatus having variable impedance matching circuit between antenna and radio circuit 失效便携式无线电设备在天线和无线电电路之间具有可变阻抗匹配电路
公开(公告)号：US5335368A
公开(公告)日：1994-08-02
申请号：US891412
申请日：1992-05-29
申请人： Yoshiharu Tamura
发明人： Yoshiharu Tamura
CPC分类号： H04B1/18 , H01Q1/244 , H04M1/0214 , H04M1/0245 , H04M2250/12
摘要： A portable radio apparatus having a casing thereof keeps a matching state of an antenna thereof in the call waiting state and in the operating state of the apparatus. The casing is foldable and expandable and accommodates therein a transmitting and receiving circuit connected via a variable matching circuit to the antenna. The matching circuit is connected to a sensor disposed in the casing for sensing a folded state thereof. Depending on a result of the sensing operation of the sensor, the matching circuit changes the matching state.
摘要翻译： 具有壳体的便携式无线电设备保持其天线的匹配状态处于呼叫等待状态和设备的操作状态。 壳体是可折叠和可扩张的，并且在其中容纳通过可变匹配电路连接到天线的发射和接收电路。 匹配电路连接到设置在壳体中的传感器，用于感测其折叠状态。 根据传感器的感测操作的结果，匹配电路改变匹配状态。
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公开(公告)号：US5167514A
公开(公告)日：1992-12-01
申请号：US788182
申请日：1991-11-05
CPC分类号： H01R24/50 , H01R23/6873 , H01R2103/00
摘要： In a plug and a receptacle of a microstrip line connector, the plug has a rectangular parallelpipedic insulating support block, a signal contact projecting upward from the center of the insulating support block and a pair of L-angle brackets projecting out upward from both ends of the insulating support block, the pair of brackets being connected to opposite ends of a coupling plate portion provided along the side wall surface of the insulating support block. The coupling plate portion has at the center of its lower marginal edge a recess formed astride a signal conductor of a microstrip line provided on a printed circuit board. The receptacle is made up of a rectangular parallelpipedic insulating housing having three contact housing rooms defined by two partition walls, a signal socket contact housed in the central contact housing room, a U-shaped ground socket contact having two contact portions housed in the side contact housing rooms, and a shield cover mounted on the insulating housing in a manner to cover almost all over its back and hold its top and bottom panel portions. The insulating housing has a contact introducing hole in its front panel portion centrally thereof and communicating with the central contact housing room, for receiving the signal contact of the mating plug. The insulating housing has slots in its side panel portions in the front-to-back direction and communicating with the side contact housing rooms, for receiving opposed edges of the pair of L-angle brackets.
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5.发明授权
公开(公告)号：US4810101A
公开(公告)日：1989-03-07
申请号：US22078
申请日：1987-03-05
申请人： Kouzou Kage , Yoshiharu Tamura
发明人： Kouzou Kage , Yoshiharu Tamura
CPC分类号： G01R29/26
摘要： A noise detection circuit for a digital radio receiver comprises a sampling circuit for sampling a digital baseband signal having a noise component when an eye opening of the baseband signal is largest. A waveform generator is connected to the output of the sampling circuit for generating a waveform which is a replica of the baseband signal and free from the noise component. The waveform generator comprises a threshold comparator having decision thresholds and a waveform recovery circuit which includes a resistor, a plurality of storage capacitors of equal values and a switch responsive to the output of the threshold comparator for selectively coupling the output of the sampling circuit through the resistor to the storage capacitors. A substractor is connected to the outputs of the sampling circuit and the waveform generator for generating a signal representative of the noise component of the baseband signal. The output of the subtractor circuit can be used for various purposes including noise measurement, squelch action and automatic local oscillator frequency control.
摘要翻译： 一种用于数字无线电接收机的噪声检测电路包括一个采样电路，用于当基带信号的开眼最大时对具有噪声分量的数字基带信号进行采样。 波形发生器连接到采样电路的输出，用于产生作为基带信号的复制品并且没有噪声分量的波形。 波形发生器包括具有判定阈值的阈值比较器和包括电阻器，相等值的多个存储电容器和响应于阈值比较器的输出的开关的波形恢复电路，用于选择性地将采样电路的输出通过 电阻到存储电容。 减法器连接到采样电路和波形发生器的输出，用于产生表示基带信号的噪声分量的信号。 减法器电路的输出可以用于各种目的，包括噪声测量，静噪动作和自动本地振荡器频率控制。
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公开(公告)号：US4907122A
公开(公告)日：1990-03-06
申请号：US215637
申请日：1988-07-06
申请人： Yoshiharu Tamura
发明人： Yoshiharu Tamura
CPC分类号： H01H47/002 , H01H2047/006 , Y10T307/872
摘要： In a relay circuit, a stationary contact of a relay is coupled to a DC voltage source and a moving contact of the relay is coupled to a load circuit. The moving contact is switched to the stationary contact in response to a rapidly rising edge of a DC voltage applied to the relay. A voltage sensor is connected to the moving contact for detecting a voltage which appears thereat. For operating the relay, a switch is closed to apply a voltage from the DC voltage source to a pulse generator. The pulse generator generates a rectangular pulse and applies it to the relay to cause it to switch the moving contact to the stationary contact. If a voltage is not detected by the voltage sensor at the moving contact after energization of the relay, the pulse generator reapplies a rectangular pulse to the relay until a voltage appears at the moving contact, whereupon the pulse generator applies a constant voltage to the relay.
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公开(公告)号：US4866396A
公开(公告)日：1989-09-12
申请号：US212194
申请日：1988-06-27
申请人： Yoshiharu Tamura
发明人： Yoshiharu Tamura
CPC分类号： H03D1/10 , H03D2200/0096
摘要： A temperature stabilized RF detector has a first diode connected between an input terminal for receiving an RF signal and an output terminal for outputting the detection signal of the RF signal, and a second diode connected between the input terminal and a constant voltage source through a buffer circuit. Connecting directions of the first and second diodes are opposite to each other in a circuit for connecting the output terminal and the constant voltage source.
摘要翻译： 检测器具有连接在用于接收RF信号的输入端子（12）和用于输出RF信号的检测信号的输出端子（13）之间的第一二极管（X2）和其一侧的第二二极管（X1） 通过缓冲电路（15）连接到输入端。 第二二极管的另一侧连接到恒压源（14）。 两个二极管的连接方式是使得第二二极管（VX1）上的电压降与第一二极管（VX2）两端的电压具有相反的极性。
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公开(公告)号：US4576132A
公开(公告)日：1986-03-18
申请号：US666038
申请日：1984-10-29
IPC分类号： F02D41/06
CPC分类号： F02D41/064
摘要： An increase in the amount of fuel when an engine is started or being idled is controlled on the basis of a detected intake air temperature or outside air temperature in addition to detected engine speed, intake air pressure and engine coolant temperature. Therefore, it is possible to obtain a mixture with an appropriate air-to-fuel ratio corresponding to intake air temperature in starting the engine, thus improving engine starting characteristics at low outside air temperature.
摘要翻译： 基于检测到的进气温度或外部空气温度，除了检测到的发动机转速，进气压力和发动机冷却剂温度之外，还控制发动机起动或空转时的燃料量的增加。 因此，能够在启动发动机时获得与进气温度对应的适当的空气 - 燃料比的混合物，从而在低的外部空气温度下提高发动机起动特性。
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公开(公告)号：US5404390A
公开(公告)日：1995-04-04
申请号：US169202
申请日：1993-12-20
申请人： Yoshiharu Tamura
发明人： Yoshiharu Tamura
CPC分类号： H04B1/3833 , H01Q1/245
摘要： A rod antenna is contained to be slant in a housing case, such that a top of the rod antenna is positioned on the side of the housing case remote from a user head, and a bottom of the rod antenna is on the side of the housing case near the user head. The remote and near sides are opposite to each other. When the rod antenna is pulled up out of the housing case, the rod antenna top becomes more remote from the user head in accordance with the slantly contained mode.
摘要翻译： 棒状天线被容纳成在壳体中倾斜，使得杆状天线的顶部位于远离使用者头部的壳体的一侧，并且杆状天线的底部位于壳体的侧面 用户头附近的情况。 遥控器和近侧彼此相对。 当杆状天线被拉出外壳时，杆状天线顶部根据倾斜的包含模式变得远离用户头部。
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公开(公告)号：US5255001A
公开(公告)日：1993-10-19
申请号：US627455
申请日：1990-12-14
申请人： Yoshiharu Tamura , Takao Ono
发明人： Yoshiharu Tamura , Takao Ono
摘要： An antenna for a portable radio apparatus has a first antenna construction connected to the casing of the apparatus and a second antenna construction affixed to a base plate or earth plate which is incorporated in the casing. The first antenna construction has a movable joint which allows the first antenna construction to move between a first position where it is regarded as forming a part of the contour of the casing and a second position where it is protruded from the contour and regarded as being located in free space. The second antenna construction corrects the matching state of the first antenna construction such that adequate antenna radiation characteristics are set up in the first position. Optimal antenna characteristics are, therefore, achievable when the first antenna construction is in any one of the first and second positions.
摘要翻译： 用于便携式无线电设备的天线具有连接到设备的壳体的第一天线结构和固定到底板或接地板的第二天线结构，其结合在壳体中。 第一天线结构具有可动接头，其允许第一天线结构在其被认为形成壳体的轮廓的一部分的第一位置和从轮廓突出并被认为位于的第二位置之间移动 在自由空间。 第二天线结构校正第一天线结构的匹配状态，使得在第一位置设置足够的天线辐射特性。 因此，当第一天线结构处于第一和第二位置中的任何一个时，最佳天线特性是可实现的。
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