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    • 1. 发明专利
    • Modular plug removal prevention device, and modular plug removal prevention device set
    • 模块式插头拆卸预防装置和模块式插头拆卸预防装置
    • JP2007157654A
    • 2007-06-21
    • JP2005355263
    • 2005-12-08
    • Shinya Sasaki伸也 佐々木
    • SASAKI SHINYA
    • H01R13/639
    • PROBLEM TO BE SOLVED: To provide a modular plug removal prevention device capable of surely preventing a modular plug from being removed out of a modular jack. SOLUTION: The modular plug removal prevention device 1000 is composed of, for instance, a holding frame 100, and an insertion member 200 inserted in inside walls 102a and 103a of the holding frame 100 and between a locking lever formation surface 11d and a ceiling surface 104. The insertion member 200 is provided with: a first depression prevention part 300 arranged between a modular plug body 11 and a locking lever 12 for preventing the extension side of the locking lever from being depressed in a direction approaching the body 11; and a second depression prevention part 400 covering a tip of the locking lever 12 for preventing the tip side of the locking lever 12 from being depressed in a direction approaching the body 11. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种能够可靠地防止模块化插头从模块插座中移出的模块化插头去除防止装置。 解决方案:模块化插头去除防止装置1000由例如保持框架100和插入构件200,插入构件200插入到保持框架100的内壁102a和103a中以及锁定杆形成表面11d和 插入构件200设置有:设置在模块化插塞主体11和锁定杆12之间的第一抑制部分300,用于防止锁定杆的延伸侧在靠近主体11的方向上被压下 ; 以及覆盖锁定杆12的前端的第二抑制抑制部400,用于防止锁定杆12的前端在接近身体11的方向上被压下。(C)2007,JPO&INPIT
    • 4. 发明授权
    • Optical communication system, optical receiver, optical transponder, wavelength multiplexing optical communication system, wavelength multiplexing receiving device, and wavelength multiplexing optical transponder
    • 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
    • US08831441B2
    • 2014-09-09
    • US13701198
    • 2010-06-03
    • Shinya Sasaki
    • Shinya Sasaki
    • H04B10/60H04J14/02
    • H04B10/66H04B10/548
    • 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.
    • 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。
    • 6. 发明授权
    • Optical transmitter and optical OFDM communication system
    • 光发射机和光OFDM通信系统
    • US08467687B2
    • 2013-06-18
    • US13140355
    • 2009-12-18
    • Shinya Sasaki
    • Shinya Sasaki
    • H04B10/00
    • H04J14/02H04B10/548H04L25/03343H04L25/03821H04L27/2626H04L27/2697
    • 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.
    • 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。
    • 7. 发明授权
    • Polarization multiplexing transmitter and transmission system
    • 极化复用发射机和传输系统
    • US08417126B2
    • 2013-04-09
    • US12985455
    • 2011-01-06
    • Kohei MandaiNobuhiko KikuchiShinya Sasaki
    • Kohei MandaiNobuhiko KikuchiShinya Sasaki
    • H04B10/04
    • H04J14/06
    • 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.
    • 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。
    • 9. 发明授权
    • Optical communication system
    • 光通信系统
    • US08374504B2
    • 2013-02-12
    • US12444280
    • 2006-10-06
    • Masahiko MizutaniYoshihiro AshiShinya SasakiTohru Kazawa
    • Masahiko MizutaniYoshihiro AshiShinya SasakiTohru Kazawa
    • H04J14/00H04J4/00H04J14/02H04B10/12
    • H04J14/0282H04B1/707
    • A transmitting apparatus includes a plurality of code spreaders different in spreading code, a reception processing unit that selectively distributes transmission data to the plurality of code spreaders, a plurality of optical transmitters each of which that transmit a code-spread signal to an optical fiber as a CDMA optical signal of a carrier wavelength different from that of the other optical transmitters, and a signal multiplexing unit that selectively supplies outputs of the plurality of code spreaders to the plurality of optical transmitters. A receiving apparatus includes an optical receiver that receives a wavelength-division-multiplexed CDMA optical signal from the optical fiber, and a plurality of despreaders connected to the optical receiver and different in spreading code, wherein each of the despreaders reproduces a CDMA signal corresponding to its spreading code from an output signal of the optical receiver.
    • 发送装置包括扩展码不同的多个码扩展器,选择性地将发送数据分配给多个代码扩展器的接收处理单元,多个光发送器,每个光发送器将码扩展信号发送到光纤,如 与其他光发射机不同的载波波长的CDMA光信号,以及选择性地将多个码扩展器的输出提供给多个光发射机的信号复用单元。 接收装置包括从光纤接收波分复用CDMA光信号的光接收机,以及连接到光接收机并且扩展码不同的多个解扩器,其中每个解扩器再现对应于 其扩展码来自光接收机的输出信号。