专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06570455B2 Rubidium atom oscillator generating a stable frequency 失效
公开(公告)号：US06570455B2
公开(公告)日：2003-05-27
申请号：US09965171
申请日：2001-09-27
申请人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama
发明人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama
IPC分类号： H03L726
CPC分类号： H03L7/26
摘要： A rubidium atom oscillator is not influenced by a circumference noise or the like, and is excellent in the short-term stability and the phase noise characteristic. A crystal oscillator oscillates a fixed frequency as an atomic resonance frequency. A direct digital synthesizer inputs an output of the crystal oscillator as a system clock and also inputs tuned data corresponding to an error signal generated according to a resonance frequency so as to carry out a variable control of an output frequency. A frequency synthesizer synthesizes and multiplies an output of the direct digital synthesizer and applies a phase modulation with a low-frequency signal. An atomic resonator inputs an output of the frequency synthesizer and detects an error signal with respect to a resonance frequency of rubidium atoms. A tuned-data generating circuit inputs the error signal from the atomic resonator so as to generate the tuned data corresponding to the error signal. The output frequency of the direct digital synthesizer is output from the rubidium atom oscillator.

2. 发明授权

US06300841B1 Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplier 有权
标题翻译：原子振荡器利用高频转换电路和有源低积分数乘法器
公开(公告)号：US06300841B1
公开(公告)日：2001-10-09
申请号：US09536525
申请日：2000-03-28
申请人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama , Koji Nakamuta , Minoru Sakai
发明人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama , Koji Nakamuta , Minoru Sakai
IPC分类号： H03L726
CPC分类号： H03L7/26
摘要： In an atomic oscillator, a high-frequency converting circuit converts the output of a standard oscillator into a high frequency signal such that the frequency of the high frequency signal multiplied by a low natural number equals an atomic resonant frequency signal. The high frequency signal is then multiplied by a low natural number in an active, low-natural-number multiplier circuit to convert the output frequency of the standard oscillator into a resonant frequency to be input to the atomic oscillator. The result is that, without using a passive, high-natural-number multiplier circuit, such as a varactor diode, which is expensive, it is possible to convert the output frequency of the standard oscillator into a resonant frequency signal of a rubidium atom, thus downsizing the circuits of the atomic oscillator and reducing the term and cost of manufacture.
摘要翻译：在原子振荡器中，高频转换电路将标准振荡器的输出转换为高频信号，使得乘以低自然数的高频信号的频率等于原子共振频率信号。然后，高频信号在有效的低自然数乘法器电路中乘以低自然数，以将标准振荡器的输出频率转换为谐振频率以输入到原子振荡器。结果是，在不使用昂贵的无源高自然数乘法电路（例如变容二极管）的情况下，可以将标准振荡器的输出频率转换成铷原子的谐振频率信号，从而减小了原子振荡器的电路，并降低了制造的术语和成本。

3. 发明授权

US5712597A Rubidium atom oscillator with temperature stabilized frequency output 失效
标题翻译：铷原子振荡器具有温度稳定的频率输出
公开(公告)号：US5712597A
公开(公告)日：1998-01-27
申请号：US618490
申请日：1996-03-19
申请人： Ken Atsumi , Yoshifumi Nakajima , Yoshito Koyama
发明人： Ken Atsumi , Yoshifumi Nakajima , Yoshito Koyama
IPC分类号： H01S1/06 , H03L7/26 , H03L1/02
CPC分类号： H03L7/26
摘要： A rubidium atom oscillator has an increased allowable temperature range in which a frequency fluctuation due to change in the ambient temperature is suppressed. The frequency is stabilized in an increased temperature range as compared to the conventional rubidium atom oscillator. The rubidium atom oscillator oscillates a microwave having a predetermined stable frequency by using an optical pumping effect of rubidium gas. A rubidium lamp radiates a resonance light. A cavity resonator accommodates a gas cell containing rubidium gas and a photodetector detecting an amount of the resonance light passing through the gas cell. It is determined whether or not an ambient temperature of the cavity resonator is within a predetermined temperature range between a lower-limit temperature and an upper-limit temperature. A temperature correction signal is generated based on the determination. A current determined by the temperature correction signal is supplied to a coil surrounding the cavity resonator. The coil generates a magnetic field in the cavity resonator so as to change a resonance frequency of the cavity resonator.
摘要翻译：铷原子振荡器具有增加的可允许温度范围，其中由于环境温度变化引起的频率波动被抑制。与常规铷原子振荡器相比，频率在升高的温度范围内稳定。铷原子振荡器通过使用铷气的光泵浦效应振荡具有预定稳定频率的微波。铷灯辐射共振光。空腔谐振器容纳含有铷气体的气室和检测通过气室的共振光量的光电检测器。确定空腔谐振器的环境温度是否在下限温度和上限温度之间的预定温度范围内。基于该确定产生温度校正信号。由温度校正信号确定的电流被提供给围绕空腔谐振器的线圈。线圈在空腔谐振器中产生磁场，以改变空腔谐振器的谐振频率。

4. 发明授权

US06801091B2 Oscillator controller and atomic oscillator 失效
标题翻译：振荡器控制器和原子振荡器
公开(公告)号：US06801091B2
公开(公告)日：2004-10-05
申请号：US10315738
申请日：2002-12-10
申请人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama
发明人： Ken Atsumi , Hideyuki Matsuura , Yoshifumi Nakajima , Yoshito Koyama
IPC分类号： H03L726
CPC分类号： G04F5/14
摘要： An oscillator controller which optimizes key circuit parameters of an excitation circuit according to the operating condition of a discharge lamp. An excitation circuit energizes a discharge lamp to produce a light beam for pumping atoms, as part of a mechanism of atomic resonance detection. The operation of the excitation circuit is monitored by a start-up voltage monitor, which asserts a voltage monitoring signal when the excitation circuit's start-up voltage is reached. A light amount monitor receives a resonance detection signal from a light sensing device to check the amount of light before and after the discharge lamp lights up. The resultant light amount monitoring signal indicates this information. Based on the two monitoring signals, a bias voltage selector selects an appropriate bias voltage that varies circuit parameters of the excitation circuit.
摘要翻译：振荡器控制器，根据放电灯的工作条件优化激励电路的关键电路参数。励磁电路使放电灯通电，产生用于泵浦原子的光束，作为原子共振检测机制的一部分。激励电路的运行由启动电压监视器监控，当启动电压达到启动电压监视器时，启动电压监视器产生电压监视信号。光量监视器从光检测装置接收共振检测信号，以检查放电灯点亮之前和之后的光量。所得光量监视信号表示该信息。基于两个监控信号，偏置电压选择器选择适当的偏置电压，其改变激励电路的电路参数。

5. 发明授权

US5751193A Rubidium atomic oscillator with laser diode wavelength adjustment 失效
标题翻译：铷原子振荡器与激光二极管波长调整
公开(公告)号：US5751193A
公开(公告)日：1998-05-12
申请号：US638471
申请日：1996-04-26
申请人： Yoshifumi Nakajima , Yoshito Koyama
发明人： Yoshifumi Nakajima , Yoshito Koyama
IPC分类号： H01S1/00 , H01S5/068 , H03L7/26
CPC分类号： H03L7/26
摘要： A rubidium atomic oscillator includes a voltage-controlled oscillator (VCO) producing a first microwave signal for an output, and a light source producing pumping light of which the wavelength is externally controlled. The oscillator further includes a division part for dividing the pumping light into a first light and a second light, a wavelength shift part changing a wavelength of the second light to produce a third light, and a cavity resonator, oscillated by a second microwave signal, which absorbs the first light and the third light, the cavity resonator having a resonance cell filled with a rubidium gas. In an electrical control part, the second microwave signal is produced based on the first microwave signal from the VCO, a level of the first light passed through the cavity resonator is detected, and a frequency of the VCO is controlled so that the first light is maximally absorbed in the cavity resonator. In an optical control part, a level of the third light passed through the cavity resonator is detected and the wavelength of the light source is controlled so that the third light is maximally absorbed in the cavity resonator. In the oscillator, by properly changing a wavelength of the third light in the wavelength shift part, stability of the first microwave signal may be increased.
摘要翻译：铷原子振荡器包括产生用于输出的第一微波信号的压控振荡器（VCO）和产生外部波长波长的泵浦光的光源。振荡器还包括用于将泵浦光分成第一光和第二光的分割部分，改变第二光的波长以产生第三光的波长偏移部分，以及由第二微波信号振荡的空腔谐振器，其吸收第一光和第三光，空腔谐振器具有填充有铷气体的共振池。在电气控制部分中，基于来自VCO的第一微波信号产生第二微波信号，检测通过空腔谐振器的第一光的电平，并且控制VCO的频率，使得第一光为最大限度地吸收在腔谐振器中。在光学控制部分中，检测通过空腔谐振器的第三光的电平，并且控制光源的波长，使得第三光在空腔谐振器中被最大程度地吸收。在振荡器中，通过适当地改变波长偏移部分中的第三光的波长，可以增加第一微波信号的稳定性。

6. 发明授权

US07338386B2 Golf club shaft 失效
标题翻译：高尔夫球杆杆
公开(公告)号：US07338386B2
公开(公告)日：2008-03-04
申请号：US11362806
申请日：2006-02-28
申请人： Yoshifumi Nakajima
发明人： Yoshifumi Nakajima
IPC分类号： A63B53/10
CPC分类号： A63B53/10 , A63B60/06 , A63B60/08 , A63B60/10 , A63B60/42
摘要： A light-weighted golf club shaft, which can stabilize the swing orbit of a club head during a swing and can allow a player to swing a golf club easily and to have a consistent shot pattern, is provided. The golf club shaft has a length of 42 to 48 inches and a weight of 35 to 50 grams. A center of gravity of the shaft is located within 46.0 to 49.0% of its entire length from its tip end and a torque to the tip-end of the shaft ranges between 3.0 and 4.5 degrees. The shaft may comprise a longitudinal layer and a biased layer. The biased layer may comprise carbon fibers having a modulus of elasticity of not less than 40 t/mm2. The ratio of the number of turns of prepreg sheets for the biased layer in the tip-end portion to that in the butt-end portion of the shaft may range between 3:1 and 3:2.
摘要翻译：一种轻量级的高尔夫球杆杆，其可以在摆动期间稳定球杆头的摆动轨道并且可以允许玩家容易地摆动高尔夫球杆并且具有一致的射击模式。高尔夫球杆杆的长度为42至48英寸，重量为35至50克。轴的重心位于其末端的整个长度的46.0至49.0％之内，扭矩到轴的前端的范围在3.0和4.5度之间。轴可以包括纵向层和偏置层。偏置层可以包括弹性模量不小于40t / mm 2的碳纤维。前端部分的偏置层的预浸片数与轴的对接端部之间的匝数的比可以在3:1至3:2之间。

7. 发明申请

US20110065526A1 GOLF CLUB SHAFT AND GOLF CLUB 审中-公开
标题翻译：高尔夫俱乐部和高尔夫俱乐部
公开(公告)号：US20110065526A1
公开(公告)日：2011-03-17
申请号：US12859576
申请日：2010-08-19
申请人： Yoshifumi Nakajima
发明人： Yoshifumi Nakajima
IPC分类号： A63B53/10 , A63B53/12
CPC分类号： A63B53/10 , A63B60/00 , A63B60/06 , A63B60/08 , A63B60/10 , A63B60/54 , A63B2209/023
摘要： A golf club shaft has a function of attenuating the vibration of the shaft at the time of impact and also having a function of stabilizing the struck ball. A shaft has an inner bias layer having a fiber direction that was inclined with respect the shaft axial direction and an outer bias layer having a fiber direction that is inclined with respect to the shaft axial direction in a direction opposite from that of the inner bias layer laminated as a fiber-reinforced resin layer, and a vibration-damping material sheet layer having a vertical-direction length of about 110 mm to about 150 mm disposed between the inner bias layer and the outer bias layer, with region of the position of the end of the grip attachment location as the rear end in the vertical direction.
摘要翻译：高尔夫球杆杆具有在冲击时衰减轴的振动的功能，并且还具有稳定撞击球的功能。轴具有内偏压层，其具有相对于轴轴向倾斜的纤维方向，以及外偏压层，其具有相对于轴轴向倾斜的纤维方向，该外侧偏置层沿与内偏压层相反的方向层压为纤维强化树脂层，以及设置在内部偏置层和外部偏置层之间的垂直方向长度为约110mm至约150mm的减振材料片层，其位置为把手安装位置的端部作为垂直方向上的后端。

8. 发明申请

US20100267464A1 GOLF CLUB SHAFT 失效
标题翻译：高尔夫俱乐部
公开(公告)号：US20100267464A1
公开(公告)日：2010-10-21
申请号：US12635396
申请日：2009-12-10
申请人： Toshimitsu MIURA , Yoshifumi Nakajima
发明人： Toshimitsu MIURA , Yoshifumi Nakajima
IPC分类号： A63B53/12
CPC分类号： A63B53/10 , A63B53/12 , A63B2209/00
摘要： A golf club shaft has a more attractive appearance than a coating of plating and also achieves a rustproofing effect within the shaft, while avoiding the problem of an increase in weight and processing of effluents associated with plated shafts. The golf club shaft has a shaft body, a covering film formed by chemical treatment of an outside surface and an inside surface of the shaft body, a coating film layer formed by electric painting on the covering film of at least the outside surface; and a pigment layer, in which a polarizing powder is dispersed, which is coated on the coating film layer.
摘要翻译：高尔夫球杆轴的外观比电镀层更具吸引力，并且在轴内也能实现防锈效果，同时避免了与电镀轴相关的重量增加和流出物的加工的问题。高尔夫球杆轴具有轴体，通过对轴体的外表面和内表面进行化学处理形成的覆盖膜，至少在外表面上的覆盖膜上通过电喷涂形成的涂膜层; 以及其中分散有偏振粉末的颜料层，其涂布在涂膜层上。

9. 发明授权

US07029402B2 Golf club shaft tip diameter adjuster, golf club shaft and golf club 失效
公开(公告)号：US07029402B2
公开(公告)日：2006-04-18
申请号：US10345181
申请日：2003-01-16
申请人： Yoshifumi Nakajima
发明人： Yoshifumi Nakajima
IPC分类号： A63B53/02
CPC分类号： A63B53/02 , A63B60/00 , A63B2209/023
摘要： A golf club shaft tip diameter adjuster attached to a tip portion of a golf club shaft for adjusting a diameter of the shaft tip portion. The golf club shaft tip diameter adjuster is formed into a cylindrical tubular body out of fiber reinforced resin. A slit is defined to separate the tip diameter adjuster in the lengthwise direction thereof.

10. 发明授权

US4914403A Cesium oscillator 失效
标题翻译：铯振荡器
公开(公告)号：US4914403A
公开(公告)日：1990-04-03
申请号：US381457
申请日：1989-07-18
申请人： Yoshifumi Nakajima , Kazuharu Chiba , Hideo Sumiyoshi
发明人： Yoshifumi Nakajima , Kazuharu Chiba , Hideo Sumiyoshi
IPC分类号： H03L7/26
CPC分类号： H03L7/26
摘要： A cesium oscillator includes a cesium beam tube, and an oscillator circuit which generates an oscillation signal of a frequency to be supplied to the cesium beam tube. A frequency control circuit including a sweep circuit and a feedback loop circuit continuously varies the frequency of the oscillation signal. The frequency of the oscillation signal is continuously varied two times when the frequency of the oscillation signal is to be adjusted. A hold circuit holds the highest signal level of the resonance signal supplied from the cesium beam tube when the frequency control circuit continuously varies the frequency of the oscillation signal first. A control circuit controls the frequency control circuit so as to stop continuously varying the frequency when a signal level of the resonance signal obtained by continuously varying the frequency of the oscillation signal by the frequency control circuit for the second time becomes equal to the highest signal level held by the hold circuit.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式