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

US5515196A Optical intensity and phase modulators in an optical transmitter apparatus 失效
标题翻译：光发射机设备中的光强度和相位调制器
公开(公告)号：US5515196A
公开(公告)日：1996-05-07
申请号：US42380
申请日：1993-04-02
申请人： Shigeki Kitajima , Hirohisa Sano , Katsuhiko Kuboki , Shinya Sasaki
发明人： Shigeki Kitajima , Hirohisa Sano , Katsuhiko Kuboki , Shinya Sasaki
IPC分类号： G02F1/03 , G02F1/017 , G02F1/35 , H04B10/2513 , H04B10/2537 , H04B10/516 , H04B10/54 , H04B10/556 , H04B10/572 , H04B10/588 , H04B10/61 , H04B10/04
CPC分类号： B82Y20/00 , G02F1/01708 , H04B10/2537 , G02F2203/25
摘要： An optical transmitter apparatus comprises a light source for optical signal transmission, an intensity modulator, a transmit signal generator and a signal generator. A transmit signal to be transmitted is supplied from the transmit signal generator to the intensity modulator, while a signal generated by the signal generator is supplied to the phase modulator. A light beam emitted from the light source passes through the intensity modulator and the phase modulator to be subsequently sent out as an optical signal for transmission with intensity thereof being modulated upon passing through the intensity modulator while spectrum thereof being spread by phase modulation which the optical signal undergoes upon passing through the phase modulator.
摘要翻译：光发射机装置包括用于光信号传输的光源，强度调制器，发射信号发生器和信号发生器。要发送的发送信号从发送信号发生器提供给强度调制器，而由信号发生器产生的信号被提供给相位调制器。从光源发射的光束通过强度调制器和相位调制器，随后作为光信号发送出去，随着其强度在通过强度调制器时被调制，而其光谱通过相位调制扩展，光学信号在通过相位调制器时经历。

2. 发明授权

US5323258A Homodyne optical receiver equipment 失效
标题翻译：零差光接收机设备
公开(公告)号：US5323258A
公开(公告)日：1994-06-21
申请号：US771444
申请日：1991-10-04
申请人： Hideaki Tsushima , Ryoji Takeyari , Shinya Sasaki , Shigeki Kitajima , Katsuhiko Kuboki
发明人： Hideaki Tsushima , Ryoji Takeyari , Shinya Sasaki , Shigeki Kitajima , Katsuhiko Kuboki
IPC分类号： H04B10/516 , H04B10/07 , H04B10/61 , H04B10/06
CPC分类号： H04B10/61 , H04B10/614 , H04B10/63
摘要： A homodyne optical receiver includes a polarization beam splitter for dividing an optical signal into an optical signal with horizontal polarization and an optical signal with vertical polarization. Optical couplers combine two optical signals of the two polarized components with two optical local signals, which signals are almost matched therewith in polarization, and in a state where they are matched with each other in phase. Detectors homodyne-detect respective output optical signals of the optical couplers and two weighting circuits assign output signals of the detectors weights which are approximately proportional to amplitudes thereof, respectively. An adder adds output signals of the weighting circuits.
摘要翻译：零差光接收机包括用于将光信号分解为具有水平偏振的光信号和具有垂直偏振的光信号的偏振分束器。光耦合器将两个偏振分量的两个光信号与两个光学本地信号组合，这些信号在偏振中几乎匹配，并且在相位相互匹配的状态下。检测器零差检测光耦合器的相应输出光信号，并且两个加权电路分别分配与其幅度近似成比例的检测器权重的输出信号。加法器加上加权电路的输出信号。

3. 发明授权

US5408349A Optical frequency division multiplexing transmission system 失效
标题翻译：光分频复用传输系统
公开(公告)号：US5408349A
公开(公告)日：1995-04-18
申请号：US907502
申请日：1992-07-01
申请人： Hideaki Tsushima , Shinya Sasaki , Katsuhiko Kuboki
发明人： Hideaki Tsushima , Shinya Sasaki , Katsuhiko Kuboki
IPC分类号： H04B10/50 , H04B10/508 , H04B10/572 , H04J14/02 , H04B10/04 , H04B10/06
CPC分类号： H04B10/572 , H04B10/50 , H04B10/506 , H04B10/508
摘要： An optical frequency division multiplexing transmission system for sending a large volume of information by a single optical fiber is disclosed. Each of an optical frequency division multiplexing transmitter equipment and an optical frequency division multiplexing receiver equipment has an optical filter having a periodic optical transmission characteristic therein. Each optical filter is stabilized with an absolutely-stabilized standard optical frequency. Each optical signal frequency is stabilized to a periodic transmission characteristic of the optical filter arranged in the optical frequency division multiplexing transmitter equipment, and each local frequency to a periodic transmission characteristic of the optical filter arranged in the optical frequency division multiplexing receiver equipment. Even in the case where no optical signal is applied to the optical frequency division multiplexing receiver equipment due to such causes as a fault of the transmission optical source or the breakage of an optical fiber, the local optical source frequency continues to be controlled in stable fashion.
摘要翻译：公开了一种用于通过单个光纤发送大量信息的光分频复用传输系统。光分频复用发射机设备和光分频多路复用接收机设备中的每一个具有其中具有周期性光传输特性的滤光器。每个滤光片均采用绝对稳定的标准光学频率进行稳定。每个光信号频率被稳定为布置在光分频复用发射机设备中的光滤波器的周期性传输特性，并且每个本地频率被布置在光分频多路复用接收机设备中的滤波器的周期性传输特性。即使在由于传输光源的故障或光纤的断裂等原因而不对光分频多路复用接收机设备施加光信号的情况下，本地光源频率继续以稳定的方式被控制。

4. 发明授权

US5144467A Optical tuning method and apparatus suitable for selective reception of optical frequency division multiplex signals 失效
标题翻译：适用于选择性接收光分频复用信号的光调谐方法和装置
公开(公告)号：US5144467A
公开(公告)日：1992-09-01
申请号：US557721
申请日：1990-07-25
申请人： Shigeki Kitajima , Kiichi Yamashita , Shinya Sasaki , Hideaki Tsushima
发明人： Shigeki Kitajima , Kiichi Yamashita , Shinya Sasaki , Hideaki Tsushima
IPC分类号： G02F2/00 , G02F2/02 , H04B10/07 , H04B10/516 , H04B10/54 , H04B10/548 , H04B10/564 , H04B10/572 , H04B10/61 , H04J14/00 , H04J14/02
CPC分类号： H04B10/60 , H04B10/64 , H04J14/02
摘要： An optical tuning device including a channel designator and an intermediate frequency stabilizer for stabilizing the frequency of a difference signal corresponding to the frequency difference between a transmitted optical signal and a local oscillation optical signal. The channel designator includes a bias control circuit for continuously changing the optical frequency of a local oscillation light source up to a frequency corresponding to a target channel, a channel detection circuit for detecting channel passage on the basis of the difference signal, and a channel counting circuit for storing therein the selected channel and the target channel, detecting the direction of the target channel, counting the number of channel passage times, and detecting arrival at the target channel.
摘要翻译：一种光调谐装置，包括通道指示器和中频稳定器，用于稳定对应于所发射的光信号和本地振荡光信号之间的频差的差信号的频率。通道指示器包括用于连续地将本地振荡光源的光频率改变到对应于目标通道的频率的偏置控制电路，用于基于差分信号检测通道通道的通道检测电路，以及通道计数用于在其中存储所选择的信道和目标信道的电路，检测目标信道的方向，计数信道通过时间的数量，以及检测目标信道的到达。

5. 发明授权

US5305134A Optical frequency division multiplexing transmitter and optical frequency division multiplexing transmission apparatus 失效
标题翻译：光分频复用发射机和光分频复用传输装置
公开(公告)号：US5305134A
公开(公告)日：1994-04-19
申请号：US574086
申请日：1990-08-29
申请人： Hideaki Tsushima , Shinya Sasaki , Shigeki Kitajima , Kiichi Yamashita
发明人： Hideaki Tsushima , Shinya Sasaki , Shigeki Kitajima , Kiichi Yamashita
IPC分类号： G02F2/00 , H04B10/07 , H04B10/54 , H04B10/548 , H04J14/00 , H04J14/02 , H04B14/02 , H04B10/06
CPC分类号： H04B10/50 , H04B10/5563 , H04B10/572
摘要： An optical frequency division multiplexing transmitter is disclosed, which comprises a plurality of optical transmitters having different optical frequencies; an optical combiner multiplexing optical signals outputted by the different optical transmitters; and an optical filter having passbands, the frequency of each of which is approximately in accordance with the frequency of each of the signals, in which the signal thus multiplexed is inputted.
摘要翻译：公开了一种光频分复用发射机，其包括具有不同光频率的多个光发射机; 光合并器复用由不同光发射机输出的光信号; 以及具有通带的滤光器，其中的每一个的频率近似地与输入了如此多路复用的信号的每个信号的频率一致。

6. 发明授权

US09496134B2 Substrate processing apparatus, method of manufacturing semiconductor device and semiconductor device 有权
标题翻译：基板处理装置，半导体装置及半导体装置的制造方法
公开(公告)号：US09496134B2
公开(公告)日：2016-11-15
申请号：US13289450
申请日：2011-11-04
申请人： Shinya Sasaki , Yuji Takebayashi , Shintaro Kogura
发明人： Shinya Sasaki , Yuji Takebayashi , Shintaro Kogura
IPC分类号： H01L21/02 , C23C16/40 , C23C16/455
CPC分类号： H01L21/0228 , C23C16/403 , C23C16/45527 , C23C16/45546 , C23C16/45578 , H01L21/02178
摘要： Provided is a substrate processing apparatus capable of suppressing accumulation of reaction products or decomposed matters on an inner wall of a nozzle and suppressing scattering of foreign substances in a process chamber. The substrate processing apparatus includes a process chamber, a heating unit, a source gas supply unit, a source gas nozzle, an exhaust unit, and a control unit configured to control at least the heating unit, the source gas supply unit and the exhaust unit. The source gas nozzle is disposed at a region in the process chamber, in which a first process gas is not decomposed even under a temperature in the process chamber higher than a pyrolysis temperature of the first process gas, and the control unit supplies the first process gas into the process chamber two or more times at different flow velocities to prevent the first process gas from being mixed.
摘要翻译：提供一种能够抑制反应产物或分解物积聚在喷嘴的内壁上并抑制处理室内的异物散射的基板处理装置。基板处理装置包括处理室，加热单元，源气体供给单元，源气体喷嘴，排气单元以及至少控制加热单元，源气体供给单元和排气单元的控制单元。源气体喷嘴设置在处理室中的区域中，即使处理室中的温度高于第一处理气体的热分解温度，第一处理气体也不分解，并且控制单元提供第一处理气体以不同的流动速度进入处理室两次或更多次以防止第一工艺气体混合。

7. 发明授权

US08831441B2 Optical communication system, optical receiver, optical transponder, wavelength multiplexing optical communication system, wavelength multiplexing receiving device, and wavelength multiplexing optical transponder 有权
标题翻译：光通信系统，光接收机，光转发器，波长复用光通信系统，波长多路复用接收装置，波分复用光转发器
公开(公告)号：US08831441B2
公开(公告)日：2014-09-09
申请号：US13701198
申请日：2010-06-03
申请人： Shinya Sasaki
发明人： Shinya Sasaki
IPC分类号： H04B10/60 , H04J14/02
CPC分类号： H04B10/66 , H04B10/548
摘要： To reduce PAPR in an optical OFDM communication system, light is phase-modulated by a base-band OFDM signal which is the output of a transmission signal processing unit 100 provided in an inner section of an optical receiver. When optical communication is implemented with the light as signal light, PAPR of low level of almost 0 dB can be achieved at places in an inner section of an optical fiber wherein the optical power is large. The signal light is propagated along an optical fiber which is a transmission path, the light is passed through a delay interferometer, and converted to electrical signals by two optical receivers. Each of the two electrical signals is converted to a subcarrier by FFT signal processing and an AD converter disposed in an inner section of the optical receivers, then, subcarriers having the same frequency are subtracted and decoded, and data is regenerated.
摘要翻译：为了降低光OFDM通信系统中的PAPR，光被基带OFDM信号相位调制，基带OFDM信号是设置在光接收机的内部的发送信号处理单元100的输出。当以光作为信号光实现光通信时，在光功率大的光纤的内部的位置处可以实现几乎为0dB的低电平的PAPR。信号光沿着作为传输路径的光纤传播，光通过延迟干涉仪，并由两个光接收器转换成电信号。两个电信号中的每一个通过FFT信号处理被转换成副载波，并且将AD转换器设置在光接收器的内部，然后减去并解码具有相同频率的子载波，并再现数据。

8. 发明申请

US20130315267A1 OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMITTER, AND TRANSPONDER 有权
标题翻译：光通信系统，光传输器和传输器
公开(公告)号：US20130315267A1
公开(公告)日：2013-11-28
申请号：US13988522
申请日：2010-11-29
申请人： Shinya Sasaki
发明人： Shinya Sasaki
IPC分类号： H04B10/25
CPC分类号： H04B10/25 , H04B10/5563 , H04B10/675 , H04L27/2096 , H04L27/223 , H04L27/2697
摘要： A technique for reducing a necessary bandwidth of an optical receiver in an optical OFDM communication system is disclosed. Optical OFDM signals of different spectra are alternately transmitted for each OFDM symbol time, and; after this light is transmitted via an optical fiber, the light undergoes photoelectric conversion by a delay interferometer having a delay time equal to one symbol time and a balanced direct detection receiver and is received.
摘要翻译：公开了一种用于减少光学OFDM通信系统中的光接收机的必要带宽的技术。对于每个OFDM符号时间，交替发送不同频谱的光OFDM信号，在通过光纤传输该光后，通过具有等于一个符号时间的延迟时间和平衡直接检测接收器的延迟干涉仪进行光电转换并被接收。

9. 发明授权

US08467687B2 Optical transmitter and optical OFDM communication system 失效
标题翻译：光发射机和光OFDM通信系统
公开(公告)号：US08467687B2
公开(公告)日：2013-06-18
申请号：US13140355
申请日：2009-12-18
申请人： Shinya Sasaki
发明人： Shinya Sasaki
IPC分类号： H04B10/00
CPC分类号： H04J14/02 , H04B10/548 , H04L25/03343 , H04L25/03821 , H04L27/2626 , H04L27/2697
摘要： Distortion of a reception signal which is attributable to interference between subcarriers during photoelectric conversion is reduced in an optical OFDM communication system without broadening the signal band. A transmission signal processing unit (100) in a transmitter is provided with a distortion generating circuit (distortion generating unit) (170). A subcarrier signal is utilized as an input signal for the circuit. The distortion generating circuit (170) generates a baseband OFDM signal by means of inverse FFT calculation using the input signal, computes the square of the absolute value of the signal, and restores the subcarrier signal by mean of FFT calculation. Because interference between subcarriers is also included in the signal, the distortion element generated by the interference between the subcarriers can be extracted when the difference from the input signal is found. The signal obtained by subtracting the distortion element from the subcarrier signal, which has been modulated using the original data to be communicated, is used as the transmission signal. The transmission signal is photoelectrically converted with a receiver. The interference between subcarriers generated at this time is smaller than when the aforementioned processing is not performed.
摘要翻译：在光OFDM通信系统中减少归因于光电转换期间子载波之间的干扰的接收信号的失真，而不会使信号带宽扩大。发射机中的发射信号处理单元（100）设置有失真发生电路（失真发生单元）（170）。副载波信号用作电路的输入信号。失真发生电路（170）通过使用输入信号的逆FFT计算生成基带OFDM信号，计算信号的绝对值的平方，并且通过FFT计算来恢复副载波信号。由于子载波之间的干扰也包含在信号中，所以当与输入信号的差异被发现时，可以提取由子载波之间的干扰产生的失真元件。使用通过使用要传送的原始数据进行了调制的副载波信号中减去失真元件而获得的信号被用作发送信号。传输信号用接收机进行光电转换。此时生成的副载波之间的干扰小于不执行上述处理时的干扰。

10. 发明授权

US08417126B2 Polarization multiplexing transmitter and transmission system 失效
标题翻译：极化复用发射机和传输系统
公开(公告)号：US08417126B2
公开(公告)日：2013-04-09
申请号：US12985455
申请日：2011-01-06
申请人： Kohei Mandai , Nobuhiko Kikuchi , Shinya Sasaki
发明人： Kohei Mandai , Nobuhiko Kikuchi , Shinya Sasaki
IPC分类号： H04B10/04
CPC分类号： H04J14/06
摘要： A polarization multiplexing transmitter which generates polarization-multiplexed signals which are arbitrarily polarization-scrambled at high speed, without adding a polarization modulator and a polarization scrambler. In the transmitter, an orthogonally polarized signal generator includes two optical modulators which modulate the electric fields of optical signals and generate two optical signals with mutually orthogonal polarized waves. The transmitter includes electric field mappers which convert two data strings into electric field signals, polarization mappers which give different polarized waves to the two signals, polarization rotators which rotate the polarized waves of the signals uniformly, a polarization multiplexer which multiplexes the two polarization-rotated signals, a polarization demultiplexer which demultiplexes the multiplexed signal into polarized wave components of optical signals generated by the orthogonally polarized signal generator, and a driver. The optical modulators are driven to make the two demultiplexed electric field signals consistent with the electric fields of optical signals modulated by the modulators.
摘要翻译：一种偏振复用发送器，其生成以高速任意偏振加扰的偏振复用信号，而不添加偏振调制器和偏振加扰器。在发射机中，正交极化信号发生器包括调制光信号的电场并产生具有相互正交的极化波的两个光信号的两个光调制器。发射机包括将两个数据串转换为电场信号的电场映射器，向两个信号提供不同极化波的偏振映射器，使信号的偏振波均匀旋转的偏振旋转器，多路复用两个偏振旋转信号，将多路复用信号解复用为由正交偏振信号发生器产生的光信号的偏振波分量的偏振解复用器和驱动器。驱动光调制器以使两个解复用的电场信号与由调制器调制的光信号的电场一致。

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