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公开(公告)号：US20030190119A1
公开(公告)日：2003-10-09
申请号：US10345971
申请日：2003-01-17
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： G02B006/26
CPC分类号： G02B6/2861
摘要： A variable-optical-delay apparatus with a single wavelength converter and optical loop path has an optical modulator able to adjust the delay time according to the input optical signal. The variable-optical-delay apparatus has an optical input section and an optical output section, an optical filter and a wavelength shifter able to adjust an amount by which a wavelength of an input optical signal is shifted disposed on an optical path extending from the input section to the output section. The input optical signal is output from the output section after passing the wavelength shifter a number of times that is determined according to the input optical signal. A resonant type optical modulator can be used that is set between filters, or set between a filter and a reflector. Part of an optical path from the input section to the output section is in the form of an optical loop, an optical modulator is provided on the optical loop.
摘要翻译： 具有单波长转换器和光环路的可变光延迟装置具有能够根据输入的光信号调整延迟时间的光调制器。 可变光延迟装置具有光输入部和光输出部，光滤波器和波长移动器，其能够调整输入光信号的波长偏移设置在从输入端延伸的光路上的量 截面到输出部分。 输入光信号在通过波长移位器之后根据输入的光信号确定的次数从输出部分输出。 可以使用设置在过滤器之间或设置在过滤器和反射器之间的共振型光学调制器。 从输入部分到输出部分的光路的一部分是光环路的形式，在光环路上提供光调制器。
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2.发明申请公开(公告)号：US20030128780A1
公开(公告)日：2003-07-10
申请号：US10337736
申请日：2003-01-08
发明人： Eiji Okamoto
IPC分类号： H04L025/08 , H04L001/00 , H03K005/01
CPC分类号： H04L25/0228 , H04L2025/03522 , H04L2027/003 , H04L2027/0053 , H04L2027/0065 , H04L2027/0093
摘要： A transmission method with compensation for fading distortion or frequency offset distortion in digital communications using pilot signals, comprises the steps of: receiving modulated radiofrequency signals, demodulating the digital signals carried by said radiofrequency signals, extracting pilot signals from the received radiofrequency signals or demodulated digital signals, finding a spectrum of the extracted pilot signals, finding fading components or frequency-offset components from said spectrum, and using one of these components to compensate the received radiofrequency signal or estimate the original digital signal from the demodulated digital signals.
摘要翻译： 一种使用导频信号对数字通信中的衰落失真或频偏失真进行补偿的传输方法，包括以下步骤：接收调制的射频信号，解调由所述射频信号携带的数字信号，从接收的射频信号中提取导频信号或解调数字 信号，找到所提取的导频信号的频谱，从所述频谱中找到衰落分量或频偏分量，并使用这些分量中的一个来补偿所接收的射频信号或从解调的数字信号估计原始数字信号。
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公开(公告)号：US20020183078A1
公开(公告)日：2002-12-05
申请号：US10132394
申请日：2002-04-26
发明人： Yoshihiro Hase
IPC分类号： H04Q007/20
CPC分类号： H04W84/16
摘要： A local-area communication system includes a private branch exchange that controls links between outside lines and the local area; wireless base-stations distributed within the local system area, each connected to the exchange; a portable card terminal capable of long-range wireless communication with the wireless base-stations, the portable card terminal having stored therein a unique ID number and being capable of short-range wireless communication in the local area; auxiliary telephone terminals located within the local area capable of short-range wireless communication with the portable card terminal and which can send and receive speech signals, and a portable card terminal box that is connected to the exchange. The card box can recharge the card terminal and transmit the ID information to the exchange.
摘要翻译： 本地通信系统包括控制外线和局域之间的链路的专用交换机; 无线基站分布在本地系统区域内，每个连接到交换机; 能够与无线基站进行长距离无线通信的便携式卡终端，便携式卡终端在其中存储了唯一的ID号，并且能够在本地区域进行短距离无线通信; 位于能够与便携式卡终端进行短距离无线通信并且可以发送和接收语音信号的局域内的辅助电话终端，以及连接到交换机的便携式卡终端盒。 卡盒可以为卡终端充值，并将ID信息传送到交换机。
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公开(公告)号：US20050135452A1
公开(公告)日：2005-06-23
申请号：US11050678
申请日：2005-02-07
申请人： Mitsuo Ishizu
发明人： Mitsuo Ishizu
CPC分类号： H01S3/042 , H01S3/025 , H01S3/0404 , H01S3/07 , H01S3/09408 , H01S3/094096 , H01S3/0941 , H01S3/1022 , H01S3/1611 , H01S3/1643 , H01S5/02415 , H01S5/4087
摘要： A diode-pumped solid-state laser oscillator optically pumps a laser medium. The oscillator has at least one pumping light source that emits light in a predetermined wavelength band, and a laser medium that absorbs light in the wavelength band. In the wavelength band, the optical absorption index of the laser medium increases with an increase in wavelength, and the optical radiation energy of the light source decreases with an increase in wavelength. Thus, with respect to wavelength changes, an increase in the optical absorption index is cancelled out by a decrease in the radiation energy, making the stability of the laser output less dependent on the temperature of the optical pumping medium or laser medium.
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5.发明申请Optical phase multi-level modulation method and apparatus, and error control method 审中-公开光相位多电平调制方法及装置及误差控制方法公开(公告)号：US20040141222A1
公开(公告)日：2004-07-22
申请号：US10697117
申请日：2003-10-31
发明人： Tetsuya Miyazaki , Kazuro Kikuchi
IPC分类号： G02F001/00
CPC分类号： H04B10/5055 , G02F1/0121 , G02F2001/212 , G02F2201/16 , H04B10/505 , H04B10/5051 , H04B10/5053 , H04B10/548 , H04B2210/003
摘要： A phase modulation method and apparatus use a plurality of phase modulators disposed in series to phase-modulate light from a source laser. Modulation by the phase modulators is used to produce phase shifts in the optical signal, with modulation by the first phase modulator producing phase shifts of 0 degrees or 2null degrees, and modulation by the n-th phase modulator producing phase shifts of 0 degrees or 2nnullnull degrees. Here, null degrees is a predetermined phase level and n is an integer than two and not more than the number of phase modulators. The method is also used to detect and control transmission errors.
摘要翻译： 相位调制方法和装置使用串联设置的多个相位调制器来相位调制源激光器的光。 相位调制器的调制用于产生光信号中的相移，第一相调制器的调制产生0度或2度的相移，第n相调制器的调制产生0度或2度的相移
xphi度。 这里，phi度是预定的相位电平，并且n是比两个并且不大于相位调制器的数目的整数。 该方法也用于检测和控制传输错误。 -
公开(公告)号：US20040085620A1
公开(公告)日：2004-05-06
申请号：US10627782
申请日：2003-07-28
发明人： Tetsuya Kawanishi , Masayuki Izutsu
IPC分类号： G02F001/35 , G02F002/02
CPC分类号： G02F2/02
摘要： A low-noise optical frequency converter uses a predetermined microwave electric signal to modulate an input light wave and output a light wave that includes a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband. The frequency converter modulates a light wave identical to the input light wave with a signal having a frequency that is three times that of the microwave signal, to form a first light wave having a first-order lower-sideband or upper-sideband. The first light wave is mixed with a second light wave having a first-order upper-sideband or lower-sideband and a third-order lower-sideband or upper-sideband, with a phase of the third-order lower-sideband or upper-sideband reversed to a phase of the first light wave, thereby suppressing third-order sidebands.
摘要翻译： 低噪声光频变换器使用预定的微波电信号来调制输入光波并输出包括一阶上边带或下边带和三阶下边带或上边带的光波。 变频器利用具有三倍于微波信号的频率的信号来调制与输入光波相同的光波，以形成具有一级下边带或上边带的第一光波。 第一光波与具有一阶上边带或下边带和三阶下边带或上边带的第二光波混合，具有三阶下边带或上边带的相位， 边带反转到第一光波的相位，从而抑制三阶边带。
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公开(公告)号：US20030185264A1
公开(公告)日：2003-10-02
申请号：US10329372
申请日：2002-12-27
发明人： Mitsuo Ishizu
IPC分类号： H01S003/091 , H01S003/094
CPC分类号： H01S3/042 , H01S3/025 , H01S3/0404 , H01S3/07 , H01S3/09408 , H01S3/094096 , H01S3/0941 , H01S3/1022 , H01S3/1611 , H01S3/1643 , H01S5/02415 , H01S5/4087
摘要： A diode-pumped solid-state laser oscillator optically pumps a laser medium. The oscillator has at least one pumping light source that emits light in a predetermined wavelength band, and a laser medium that absorbs light in the wavelength band. In the wavelength band, the optical absorption index of the laser medium increases with an increase in wavelength, and the optical radiation energy of the light source decreases with an increase in wavelength. Thus, with respect to wavelength changes, an increase in the optical absorption index is cancelled out by a decrease in the radiation energy, making the stability of the laser output less dependent on the temperature of the optical pumping medium or laser medium.
摘要翻译： 二极管泵浦固态激光振荡器对激光介质进行光泵浦。 振荡器具有发射预定波长带的光的至少一个泵浦光源和吸收波长带中的光的激光介质。 在波长带中，激光介质的光吸收指数随着波长的增加而增加，并且光源的光辐射能量随着波长的增加而减小。 因此，对于波长变化，通过辐射能量的降低来消除光吸收指数的增加，使得激光输出的稳定性较小地依赖于光泵浦介质或激光介质的温度。
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公开(公告)号：US20030128732A1
公开(公告)日：2003-07-10
申请号：US10330096
申请日：2002-12-30
发明人： Mitsuo Ishizu
IPC分类号： H01S003/091 , H01S003/094 , H01S003/08
CPC分类号： H01S3/08059 , H01S3/0602 , H01S3/08004 , H01S3/08045 , H01S3/094003 , H01S3/094084 , H01S3/0941 , H01S3/115 , H01S3/117
摘要： A laser oscillator comprises a laser medium, an optical excitation laser diode that irradiates the laser medium with light, a polarizer disposed on an optical path of the laser medium at a first end thereof, a first Porro prism disposed with the optical path coinciding with a point on a ridgeline thereof and with the ridgeline parallel or perpendicular to a plane of incidence of the polarizer, and a second Porro prism disposed on the optical path of the laser medium at a second end thereof with the optical path coinciding with a point on a ridgeline thereof. An angle formed by the two ridgelines of the first and second Porro prisms is a predetermined angle other than 0 degrees, 90 degrees, 60 degrees, 45 degrees and 36 degrees, 30 degrees.
摘要翻译： 激光振荡器包括激光介质，用光照射激光介质的激光激光二极管，在其第一端处设置在激光介质的光路上的偏振器，与光路重合的第一波罗棱镜， 点在其棱线上，并且棱线平行或垂直于偏振器的入射平面，并且第二波罗棱镜在其第二端处设置在激光介质的光路上，其中光路与一个点上的点重合 其脊线。 由第一和第二波罗棱镜的两条脊线形成的角度是0度，90度，60度，45度和36度，30度以外的预定角度。
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公开(公告)号：US20030018412A1
公开(公告)日：2003-01-23
申请号：US10200179
申请日：2002-07-23
发明人： Shininchi Kimura
IPC分类号： G06F019/00
CPC分类号： B25J9/1605 , G05B2219/39018 , G05B2219/39415 , G05B2219/40527
摘要： A method for controlling a hyper-redundant manipulator including a plurality of links coupled by joints by determining the shape the manipulator takes when the end of the manipulator is moved to a target position, includes modeling each link as an elastic body having a natural length and a suitable modulus of elasticity that enables the elastic body to stretch and contract, simulating the overall shape of the manipulator when the end has been moved to the target position with the joints locked at a freezed angle and the joints are unlocked to return each link to its natural length, and moving the manipulator end to the target position by controlling each joint angle to match the simulation outcome.
摘要翻译： 一种用于控制超冗余操纵器的方法，包括通过确定当操纵器的端部移动到目标位置时操纵器所采取的形状，通过关节联接的多个链节，包括将每个链节建模为具有自然长度的弹性体，以及 适当的弹性模量使得弹性体能够拉伸和收缩，当端部已经移动到目标位置时模拟机械手的整体形状，其中关节被锁定在冻结角度并且关节被解锁以将每个链节返回到 其自然长度，并且通过控制每个关节角度以使模拟结果匹配来将操纵器端部移动到目标位置。
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公开(公告)号：US20020183926A1
公开(公告)日：2002-12-05
申请号：US10105315
申请日：2002-03-26
发明人： Masato Takahashi
IPC分类号： G01C021/00
摘要： A method for acquiring azimuth information is provided in which first and second planar patch antennas (11a, 11b) are disposed so that their sky coverage areas partially overlap to form a common area (2), thereby dividing the antenna sky coverage area into a first area (1), third area (3) and common second area 2, and an azimuth is limited utilizing azimuths acquired in the respective areas and the angle between the two antennas. As a result, azimuth limitation information can be effectively acquired even at a location where the sky is severely blocked and satellite information can be adequately acquired only at a small range of sky visibility.
摘要翻译： 提供一种用于获取方位信息的方法，其中第一和第二平面贴片天线（11a，11b）被布置成使得它们的天空覆盖区域部分地重叠以形成公共区域（2），从而将天线天线覆盖区域划分为第一 区域（1），第三区域（3）和公共第二区域2，并且使用在各个区域中获取的方位角和两个天线之间的角度来限制方位角。 因此，即使在天空被严重阻挡的地方，也可以仅在小范围的天空可见度下适当地获取卫星信息，所以能够有效地获得方位限制信息。
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