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41. 发明申请

US20100287450A1 OPTICAL RECEIVING APPARATUS AND OPTICAL RECEIVING METHOD 有权
标题翻译：光接收装置和光接收方法
公开(公告)号：US20100287450A1
公开(公告)日：2010-11-11
申请号：US12775825
申请日：2010-05-07
申请人： Takashi Sugihara , Takashi Mizuochi , Kazuo Kubo
发明人： Takashi Sugihara , Takashi Mizuochi , Kazuo Kubo
IPC分类号： H03M13/45 , G06F11/10 , H04B10/06
CPC分类号： H04L25/067
摘要： An optical receiving apparatus includes: an A/D converting circuit; a received-signal demodulating circuit that demodulates a received digital signal from the A/D converting circuit into an m-bit received signal; a soft-decision-data generating circuit that generates n-bit (n≦m) soft-decision data based on the m-bit received signal; and an error correcting circuit that performs error correction based on the n-bit soft-decision data and outputs an error-corrected received signal. The soft-decision-data generating circuit generates soft-decision data of n bits (n=p+1) that corresponds to a determination result according to 2n−1 soft-decision thresholds, by using an MSB of the m-bit received signal as hard-decision data, and by using, as reliability information, a result of comparison between a plurality of bits (k bits, where k≦m) on an MSB side of the m-bit received signal and a fixed threshold, or p bits (p≦m−k) selected from (m−k) bits on an LSB side of the m-bit received signal.
摘要翻译：一种光接收装置，包括：A / D转换电路; 接收信号解调电路，将接收到的数字信号从A / D转换电路解调为m位接收信号; 软判决数据产生电路，其基于所述m位接收信号产生n位（n＆nl; m）个软判决数据; 以及错误校正电路，其基于n位软判决数据进行纠错，并输出纠错接收信号。软判决数据生成电路通过使用m比特接收信号的MSB，生成与根据2n-1个软判定阈值的判定结果对应的n位（n = p + 1）的软判决数据作为硬判决数据，并且通过使用作为可靠性信息的m位接收信号的MSB侧的多个比特（k比特，其中k比特，其中k和nlE; m）与固定阈值的比较，或者p 从m位接收信号的LSB侧的（m-k）比特中选择的比特（p＆nlE; m-k）。

42. 发明授权

US07505695B2 Optical receiver and optical transmission system 有权
标题翻译：光接收机和光传输系统
公开(公告)号：US07505695B2
公开(公告)日：2009-03-17
申请号：US10508321
申请日：2003-04-23
申请人： Takashi Sugihara , Hirofumi Totsuka , Takashi Mizuochi
发明人： Takashi Sugihara , Hirofumi Totsuka , Takashi Mizuochi
IPC分类号： H04B10/06
CPC分类号： H04B10/6971 , H04B10/675 , H04B10/6972
摘要： The present invention includes an optical band-limiting filter which imposes a band-limitation on an input optical signal, an opto-electric converter which converts the optical signal output from the optical band-limiting filter into an electric signal, a lowpass filter which imposes the band-limitation on the electric signal output from the opto-electric converter, an amplifier which amplifies the output signal of the lowpass filter, and an electric equalizer which performs an equalization processing on a waveform of the electric signal output from the opto-electric converter are provided, and a full width at half maximum of the optical band-limiting filter is set to be equivalent to or smaller than a bit rate frequency of the optical signal.
摘要翻译：本发明包括对输入光信号施加带限限制的光限幅滤波器，将从光限带滤波器输出的光信号转换为电信号的光电转换器，施加从光电转换器输出的电信号的频带限制，放大低通滤波器的输出信号的放大器和对从光电输出的电信号的波形进行均衡处理的电均衡器转换器，并且将光限幅滤波器的半值全宽设置为等于或小于光信号的比特率频率。

43. 发明授权

US07379671B2 Optical transmitter 失效
标题翻译：光发射机
公开(公告)号：US07379671B2
公开(公告)日：2008-05-27
申请号：US10609366
申请日：2003-07-01
申请人： Kenkichi Shimomura , Takashi Sugihara , Takashi Mizuochi
发明人： Kenkichi Shimomura , Takashi Sugihara , Takashi Mizuochi
IPC分类号： H04J13/02 , H04B10/04 , G02F1/00 , G02F1/01 , H04B10/12
CPC分类号： H04B10/5051 , H04B10/505 , H04B10/5165 , H04B10/548
摘要： An optical modulation processing section is provided which, in turn, includes a signal carrier-suppressed pulse modulating unit that performs signal carrier-suppressed pulse modulation on a light source signal to thereby create a CS-RZ signal, a phase modulating unit that performs phase modulation on a data signal based on the CS-RZ signal to thereby convert the data signal to a phase-modulated signal, and an optical filtering unit that filters out redundant frequency components included in the phase modulation signal.
摘要翻译：提供了一种光调制处理部，其进而包括对光源信号执行信号载波抑制脉冲调制从而产生CS-RZ信号的信号载波抑制脉冲调制单元，相位调制单元执行相位基于CS-RZ信号对数据信号进行调制，从而将数据信号转换为相位调制信号;以及滤波单元，滤除包括在相位调制信号中的冗余频率分量。

44. 发明授权

US06970650B2 One-core two-way optical transmission system 失效
标题翻译：单核双向光传输系统
公开(公告)号：US06970650B2
公开(公告)日：2005-11-29
申请号：US10477535
申请日：2003-02-26
申请人： Satoshi Kajiya , Kaoru Kinjo , Takashi Mizuochi
发明人： Satoshi Kajiya , Kaoru Kinjo , Takashi Mizuochi
IPC分类号： G02F1/35 , H01S3/10 , H01S3/30 , H04B10/00 , H04B10/2563 , H04J14/00 , H04J14/02
CPC分类号： H04B10/2971 , H04B10/2503 , H04B10/2916
摘要： In a one-fiber bidirectional optical transmission system in which output optical signals of optical transmitter-receivers respectively connected to the opposite ends of one optical fiber transmission line are bidirectionally transmitted in the optical fiber transmission line, which utilizes a Raman amplification effect by backward pumping, a frequency satisfying the conditions of |fs1−f0|≠|fp2−f0| and |fs2−f0|≠|fp1−f0| is selected, where f0 is a zero dispersion frequency of the optical fiber transmission line, fs1 and fs2 are the frequencies of the first signal and the second signal, respectively, and fp1 and fp2 are frequencies of the first Raman pump light and the second Raman pump light, respectively.
摘要翻译：在单纤双向光传输系统中，其中分别连接到一根光纤传输线的相对端的光发射器 - 接收器的输出光信号在光纤传输线中双向传输，其利用通过反向泵浦的拉曼放大效应满足以下条件的频率满足条件| f | ＆lt; f＆gt;＆lt;＆lt;＆lt;＆lt; /＆gt; 被选择，其中f 0是光纤传输线的零色散频率，f s1和f 2 s 2是第一个信号和第二信号，f 1 p1和f 2 p 2分别是第一拉曼泵浦光和第二拉曼泵浦光的频率。

45. 发明申请

US20050099676A1 Raman amplifier and optical relay transmission system 有权
标题翻译：拉曼放大器和光中继传输系统
公开(公告)号：US20050099676A1
公开(公告)日：2005-05-12
申请号：US10654438
申请日：2003-09-04
申请人： Toshiyuki Tokura , Taichi Kogure , Satoshi Kajiya , Takashi Mizuochi
发明人： Toshiyuki Tokura , Taichi Kogure , Satoshi Kajiya , Takashi Mizuochi
IPC分类号： G02F1/35 , H01S3/10 , H01S3/30 , H04B10/077 , H04B10/079 , H04B10/29 , H04B10/294 , H04J14/00 , H04J14/02 , H01S3/00
CPC分类号： H04B10/2916
摘要： An optical fiber propagates and amplifies a second signal light that is a wavelength-multiplexed signal of a first signal light of a plurality of wavelengths and a reference light that is out of a wavelength range of amplification. An excitation light source outputs an excitation light for amplifying the second signal light. A beam splitter splits a portion of the second signal light into the first signal light and the reference light. A signal light level detecting unit detects a level of the first signal light. A reference light level detecting unit detects a level of the reference light. A signal level setting unit calculates a target value for constantly maintaining a Raman gain, and controls the output level of the excitation light in such a way that the first signal level matches with the target value.
摘要翻译：光纤传播并放大作为多个波长的第一信号光的波长复用信号的第二信号光和不在放大的波长范围内的参考光。激发光源输出用于放大第二信号光的激发光。分束器将第二信号光的一部分分成第一信号光和参考光。信号光电平检测单元检测第一信号光的电平。参考光电平检测单元检测参考光的电平。信号电平设定单元计算用于不断维持拉曼增益的目标值，并以使第一信号电平与目标值相匹配的方式控制激励光的输出电平。

46. 发明授权

US08909066B2 Optical transfer system, optical transmission device, and optical reception device 有权
标题翻译：光传输系统，光传输设备和光接收设备
公开(公告)号：US08909066B2
公开(公告)日：2014-12-09
申请号：US13814617
申请日：2011-09-30
申请人： Tsuyoshi Yoshida , Takashi Sugihara , Kazuyuki Ishida , Takashi Mizuochi
发明人： Tsuyoshi Yoshida , Takashi Sugihara , Kazuyuki Ishida , Takashi Mizuochi
IPC分类号： H04B10/00 , H04J14/06 , H04B10/50 , H04B10/61 , H04J14/00 , H04B10/532
CPC分类号： H04J14/06 , H04B10/5053 , H04B10/532 , H04B10/616 , H04J14/002
摘要： In an optical transfer system, an optical transmission unit generates an optical signal in which respective polarization components are alternately present on a time axis, a time period during which the respective polarization components are simultaneously present on the time axis is substantially zero, and a symbol repetition cycle of optical signals of the respective polarization components becomes Ts, an optical reception unit causes an interference between local oscillation light and a received optical signal and converts an interfered optical signal to an electric signal, and a received electric-signal processing unit performs analog-digital conversion of an electric signal, elimination of a delay difference of Ts/2 between the respective polarized signal components, and adaptive equalization of a distortion other than the delay difference.
摘要翻译：在光传输系统中，光传输单元产生在时间轴上交替存在各偏振分量的光信号，时间轴上同时存在各偏振分量的时间段基本上为零，以及符号各个偏振分量的光信号的重复周期变为Ts，光接收单元引起局部振荡光和接收到的光信号之间的干扰，并将干扰的光信号转换为电信号，并且接收的电信号处理单元执行模拟电信号的数字转换，消除各极化信号分量之间的Ts / 2的延迟差，以及除了延迟差之外的失真的自适应均衡。

47. 发明授权

US08805198B2 Optical transmission and reception system, optical transmitting and receiving apparatus, and optical transmission and reception method 有权
标题翻译：光传输和接收系统，光发射和接收设备以及光传输和接收方法
公开(公告)号：US08805198B2
公开(公告)日：2014-08-12
申请号：US13202001
申请日：2009-04-13
申请人： Takashi Mizuochi
发明人： Takashi Mizuochi
IPC分类号： H04B10/00 , H04B10/04 , H04B10/12 , H04B10/06
CPC分类号： H04L27/2096 , H04B10/5561 , H04B10/677
摘要： An optical transmission and reception system in which a plurality of tributary signals are converted into multilevel modulated light for transmission and reception. An apparatus for transmitting multilevel modulated light includes: FECs which perform error correction processing including addition of a tributary identifier; and a GEAR BOX which performs rate conversion on the processed signals. An apparatus for receiving multilevel modulated light includes: a 20G DQPSK REC which separates received multilevel modulated light into received tributary signals and outputs the signals to respective output systems; the GEAR BOX which performs rate conversion on the received tributary signals; the FECs which extract tributary identifiers from the received tributary signals; a TIM which compares tributary identifiers defined for the respective output systems in advance with the tributary identifies extracted; and a tributary selector which gives an instruction to change correspondence between the received tributary signals and the output systems if the result of comparison is a mismatch.
摘要翻译：一种光发送和接收系统，其中多个支路信号被转换成用于发送和接收的多电平调制光。用于发送多级调制光的装置包括：执行纠错处理的FEC，包括添加支路标识符; 以及对所处理的信号执行速率转换的GEAR BOX。一种用于接收多电平调制光的装置，包括：20G DQPSK REC，其将接收的多电平调制光分离成接收的支路信号，并将该信号输出到相应的输出系统; 对接收到的支路信号执行速率转换的GEAR BOX; 从所接收的支路信号中提取支路标识符的FEC; 将对于各个输出系统预先定义的辅助标识符与提取的支流标识进行比较的TIM; 以及如果比较结果是不匹配，则给出改变所接收的支路信号与输出系统之间的对应关系的指令。

48. 发明申请

US20070162831A1 COMMUNICATION APPARATUS, TRANSMITTER, RECEIVER, AND ERROR CORRECTION OPTICAL COMMUNICATION SYSTEM 有权
公开(公告)号：US20070162831A1
公开(公告)日：2007-07-12
申请号：US11682753
申请日：2007-03-06
申请人： Takashi Mizuochi , Naoki Suzuki , Seiji Kozaki
发明人： Takashi Mizuochi , Naoki Suzuki , Seiji Kozaki
IPC分类号： H03M13/00
CPC分类号： H04L1/0041 , H03M13/1515 , H03M13/17 , H03M13/2707 , H04L1/0071
摘要： A communication apparatus includes a transmitter and a receiver, wherein the transmitter further includes: an interleaver that rearranges positions of bits of an information frame; an FEC encoder that performs an error correction encoding to the information frame whose bit positions have been rearranged; and a selector that inserts FEC parity into predetermined positions of the information frame, to thereby generate a transmission signal, whereas the receiver includes: a selector that extracts an information frame part and an FEC parity part from a reception signal; an interleaver that rearranges positions of the bits of the information frame part using the same rule as that used at that transmitter side; an FEC decoder that corrects an error of bits rearranged based on the error correction parity part; and a de-interleaver that reproduces an information frame by returning positions of error-corrected bits to original bit positions.

49. 发明申请

US20070104225A1 COMMUNICATION APPARATUS, TRANSMITTER, RECEIVER, AND ERROR CORRECTION OPTICAL COMMUNICATION SYSTEM 审中-公开
标题翻译：通信设备，发射机，接收机和错误校正光通信系统
公开(公告)号：US20070104225A1
公开(公告)日：2007-05-10
申请号：US11278274
申请日：2006-03-31
申请人： Takashi Mizuochi , Naoki Suzuki , Seiji Kozaki
发明人： Takashi Mizuochi , Naoki Suzuki , Seiji Kozaki
IPC分类号： H04J3/00
CPC分类号： H04L1/0041 , H03M13/1515 , H03M13/17 , H03M13/2707 , H04L1/0071
摘要： A communication apparatus includes a transmitter and a receiver, wherein the transmitter further includes: an interleaver that rearranges positions of bits of an information frame; an FEC encoder that performs an error correction encoding to the information frame whose bit positions have been rearranged; and a selector that inserts FEC parity into predetermined positions of the information frame, to thereby generate a transmission signal, whereas the receiver includes: a selector that extracts an information frame part and an FEC parity part from a reception signal; an interleaver that rearranges positions of the bits of the information frame part using the same rule as that used at that transmitter side; an FEC decoder that corrects an error of bits rearranged based on the error correction parity part; and a de-interleaver that reproduces an information frame by returning positions of error-corrected bits to original bit positions.
摘要翻译：通信装置包括发射机和接收机，其中所述发射机还包括：交织器，其重新排列信息帧的比特位置; FEC编码器，其对位位置重新排列的信息帧执行纠错编码; 以及选择器，其将FEC奇偶校验插入信息帧的预定位置，从而生成发送信号，而接收机包括：从接收信号中提取信息帧部分和FEC奇偶校验部分的选择器; 使用与在该发送机侧使用的规则相同的规则来重新排列信息帧部分的位的位置的交织器; FEC解码器，其基于纠错奇偶校验部分校正重新排列的比特的错误; 以及通过将错误校正的比特的位置返回到原始比特位置来再现信息帧的去交织器。

50. 发明授权

US07158728B2 Optical repeating system and optical amplifying repeater control method 失效
标题翻译：光学重复系统和光放大中继器控制方法
公开(公告)号：US07158728B2
公开(公告)日：2007-01-02
申请号：US10191319
申请日：2002-07-10
申请人： Yasunori Kasahara , Hideki Goto , Takashi Mizuochi , Kenkichi Shimomura , Yukio Horiuchi , Masatoshi Suzuki , Daishi Ishii , Toshio Kawazawa
发明人： Yasunori Kasahara , Hideki Goto , Takashi Mizuochi , Kenkichi Shimomura , Yukio Horiuchi , Masatoshi Suzuki , Daishi Ishii , Toshio Kawazawa
IPC分类号： H04B10/02
CPC分类号： H04B10/2918 , H04B10/0777 , H04B2210/074
摘要： An optical repeating system includes an optical transmitter and a plurality of optical amplifying repeaters. The optical transmitter specifies a part or all of the optical amplifying repeaters, and transmits a supervisory command to the specified optical amplifying repeaters as a first sub-signal via an uplink or downlink optical transmission line. The supervisory command is a command to supervise internal circuits of the optical amplifying repeaters. Receiving the supervisory command addressed thereto via the uplink or downlink optical transmission line, the optical amplifying repeaters each transmit a supervisory signal indicating a supervisory result corresponding to the supervisory command to optical receivers via the uplink and downlink optical transmission lines as a second sub-signal. The optical system can reduce the time take to acquire the supervisory information about the plurality of the optical amplifying repeaters.
摘要翻译：光学重复系统包括光发射机和多个光放大中继器。光发射机规定了一部分或全部光放大中继器，并经由上行或下行光传输线路将指示的光放大中继器的监控命令作为第一子信号发送。监控命令是监控光放大中继器内部电路的命令。通过上行链路或下行链路光传输线路接收到该监控命令，光放大中继器将经过上行和下行光传输线路的指示对应于监控命令的监控结果的监控信号发送给光接收机作为第二子信号。光学系统可以减少获取关于多个光学放大转发器的监控信息的时间。

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