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1. 发明专利

JP2009094777A Signal waveform deterioration compensation circuit 审中-公开
标题翻译：信号波形检测补偿电路
公开(公告)号：JP2009094777A
公开(公告)日：2009-04-30
申请号：JP2007263194
申请日：2007-10-09
申请人： Nec Corp , 日本電気株式会社
发明人： AMAMIYA YASUSHI , NOGUCHI SHIGESANE
IPC分类号： H04B10/40 , H04B10/07 , H04B10/2507 , H04B10/50 , H04B10/556 , H04B10/564 , H04B10/58 , H04B10/60 , H04B10/67 , H04B10/69
摘要： PROBLEM TO BE SOLVED: To allow waveform distortion to be automatically compensated quickly and easily.
SOLUTION: When an input optical signal is branched into two in a branching part 100 and signals converted to electric signals by balance photo diodes 103-1 and 103-2 are subjected to waveform distortion compensation in FIR filters 105-1 and 105-2 using weighting factors, signals output from FIR filters 105-1 and 105-2 are compared with each other by a signal comparison part 106, and one of FIR filters 105-1 and 105-2 is selected on the basis of the comparison results, and the weighting factor set to the selected FIR filter at present is set as the weighting factor of the selected FIR factor, and a weighting factor different from the weighting factor set to the selected FIR filter at present is set as the weighting factor of the other FIR factor.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：允许波形失真快速，容易地自动补偿。解决方案：当输入光信号在分支部分100中分支为两个并且由平衡光电二极管103-1和103-2转换成电信号的信号在FIR滤波器105-1和105中进行波形失真补偿时 -2使用加权因子，由FIR滤波器105-1和105-2输出的信号通过信号比较部分106彼此比较，并且FIR滤波器105-1和105-2中的一个基于比较来选择将当前设定的所选FIR滤波器的加权系数设定为所选FIR因子的加权因子，将与当前设定的所选FIR滤波器的加权系数不同的加权系数设定为另一个FIR因子。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2014122965A Optical modulator, optical transmitter, optical transmission/reception system, and control method of optical modulator 审中-公开
标题翻译：光学调制器，光传输器，光传输/接收系统和光学调制器的控制方法
公开(公告)号：JP2014122965A
公开(公告)日：2014-07-03
申请号：JP2012278047
申请日：2012-12-20
申请人： Nec Corp , 日本電気株式会社
发明人： NOGUCHI SHIGESANE , YAMASE TOMOYUKI
IPC分类号： G02F1/01
摘要： PROBLEM TO BE SOLVED: To reduce power consumption of an optical transmitter having a split electrode structure.SOLUTION: An optical modulation part 11 includes a plurality of phase modulation regions formed on an optical waveguides 111 and 112, and outputs an optical signal OUT obtained by modulating input light IN. A driver circuit 12 includes drivers 121-127 connected to each of the plurality of phase modulation regions, and outputs a driving signal according to an input digital signal D[2:0] from each of the drivers 121-127 to the corresponding phase modulation region. A determination circuit 13 determines the number of drivers to be activated from among the drivers 121-127 in accordance with request transmission capacity information INF. A driver control circuit 14 activates the drivers of the number specified by the determination result of the determination circuit 13, and cuts power supply to the drivers other than the activated drivers. A multi-valued signal generation circuit 15 outputs a signal for multi-modulating the input digital signal D[2:0] to each of the activated drivers on the basis of the request transmission capacity information INF.
摘要翻译：要解决的问题：降低具有分裂电极结构的光发射机的功耗。解决方案：光调制部分11包括形成在光波导111和112上的多个相位调制区域，并输出由调制输入光IN。驱动器电路12包括连接到多个相位调制区域中的每一个的驱动器121-127，并且根据来自每个驱动器121-127的输入数字信号D [2：0]将驱动信号输出到对应的相位调制地区。确定电路13根据请求传输容量信息INF确定驱动器121-127中要激活的驱动器的数量。驱动器控制电路14激活由确定电路13的确定结果指定的号码的驱动器，并且切断除了激活的驱动器以外的驱动器的电源。多值信号生成电路15根据请求发送容量信息INF输出用于对输入数字信号D [2：0]进行多路调制的信号。

3. 发明专利

JP2011097215A A/d conversion apparatus 有权
标题翻译： A / D转换装置
公开(公告)号：JP2011097215A
公开(公告)日：2011-05-12
申请号：JP2009247382
申请日：2009-10-28
申请人： Nec Corp , 日本電気株式会社
发明人： YAMASE TOMOYUKI , NOGUCHI SHIGESANE
IPC分类号： H03M1/10
摘要： PROBLEM TO BE SOLVED: To reduce a conversion error as a whole in an A/D conversion apparatus by adaptively calibrating the characteristic error (dispersion of characteristics) between circuits in a plurality of A/D conversion circuits involving time interleave operations.
SOLUTION: In the A/D conversion apparatus, N A/D conversion circuits 1 to 4 for main signals formed in parallel with substantially the same structure successively converts an analog signal A1, namely a main signal, into a digital signal at different sampling timing. However, a control circuit 6 for calibration calibrates the A/D conversion circuits 1 to 4 for main signals, such that an output difference does not arise between the A/D conversion circuits 1 to 4 for main signals and an A/D circuit 5 for calibration having substantially the same structure and calibrated precision, thus adaptively calibrating the characteristic error (dispersion of characteristics) between the circuits of the respective A/D conversion circuits 1 to 4 for main signals, and hence reducing the conversion error as a whole in the A/D conversion apparatus for improving precision.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过自适应地校准涉及时间交织操作的多个A / D转换电路中的电路之间的特性误差（特性的色散）来降低A / D转换装置的整体转换误差。解决方案：在A / D转换装置中，用于以大致相同结构并行形成的主信号的NA / D转换电路1至4将模拟信号A1（即主信号）连续地转换成不同的数字信号抽样时间。然而，用于校准的控制电路6校准用于主信号的A / D转换电路1至4，使得在主信号的A / D转换电路1至4和A / D电路5之间不产生输出差对于具有基本上相同的结构和校准精度的校准，因此自适应地校准用于主信号的各个A / D转换电路1至4的电路之间的特性误差（特性的色散），从而整体上降低了转换误差用于提高精度的A / D转换装置。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2013081227A Digital receiver and optical communication system using the same 有权
标题翻译：使用数字接收机和光通信系统
公开(公告)号：JP2013081227A
公开(公告)日：2013-05-02
申请号：JP2012268370
申请日：2012-12-07
申请人： Nec Corp , 日本電気株式会社
发明人： ABE JUNICHI , NOGUCHI SHIGESANE
IPC分类号： H04L27/22 , H03M1/10 , H04B10/2507 , H04B10/60 , H04B10/69 , H04L27/38
CPC分类号： H04B10/695 , H03M1/1061 , H03M1/1235 , H04B10/60
摘要： PROBLEM TO BE SOLVED: To provide a digital receiver capable of meeting a requirement for high resolution and high speed with improved effective resolution by appropriate adjustment of an identification level of an AD converter according to reception signal quality.SOLUTION: The digital receiver includes: an AD converter 102 for setting an identification level according to a control signal and for converting an input analog signal into a digital signal on the basis of the set identification level; an identification level adjustment circuit 104 for generating an identification level control signal on the basis of the set value to output to the AD converter; a signal quality monitoring unit 108 for generating a transfer function correction control signal which is information related to the transfer function of the AD converter on the basis of the set value; and a transfer function correction circuit 106 for, based on the transfer function correction control signal, signal processing the digital signal in a manner to cancel a deviation between the transfer function of the AD converter and an initial transfer function.
摘要翻译：要解决的问题：通过根据接收信号质量适当调整AD转换器的识别电平，提供能够通过改进的有效分辨率来满足高分辨率和高速度要求的数字接收机。数字接收机包括：AD转换器102，用于根据控制信号设置识别电平，并根据设定的识别电平将输入的模拟信号转换为数字信号; 识别电平调整电路104，用于根据设定值产生识别电平控制信号以输出到AD转换器; 信号质量监测单元108，用于根据设定值产生与AD转换器的传递函数相关的信息的传递函数校正控制信号; 以及传递函数校正电路106，用于基于传递函数校正控制信号，以消除AD转换器的传递函数和初始传递函数之间的偏差的方式对数字信号进行信号处理。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2013070425A Analog-to-digital conversion device and analog-to-digital conversion method 审中-公开
标题翻译：模拟到数字转换器件和模拟数字转换方法
公开(公告)号：JP2013070425A
公开(公告)日：2013-04-18
申请号：JP2012275778
申请日：2012-12-18
申请人： Nec Corp , 日本電気株式会社
发明人： YAMASE TOMOYUKI , NOGUCHI SHIGESANE
IPC分类号： H03M1/12 , H03M1/38 , H03M1/44
摘要： PROBLEM TO BE SOLVED: To perform conversion to a digital signal at a resolution depending on a signal characteristic of an analog signal to be converted, and reduce corresponding power consumption.SOLUTION: An analog-to-digital conversion device includes: a signal characteristic detection section 6 for detecting a predetermined characteristic of an input signal G1; a control signal generation section 7 for setting a resolution on the basis of the signal characteristic detected by the signal characteristic detection section, and generating and outputting a control signal G10 requesting only an operation required for analog-to-digital conversion at the resolution; a successive approximation register for storing a plurality of register values and outputting register signals corresponding to the register values; a digital-to-analog converter for converting the register signal to an analog signal and outputting it as a reference voltage signal; and a comparator for comparing the input signal with the reference voltage signal and outputting a comparison result signal.
摘要翻译：要解决的问题：根据要转换的模拟信号的信号特性以分辨率执行数字信号的转换，并且减少相应的功耗。解决方案：模数转换装置包括：信号特性检测部分6，用于检测输入信号G1的预定特性; 控制信号生成部分7，用于根据由信号特性检测部分检测到的信号特性设置分辨率，并产生并输出控制信号G10，该控制信号仅在分辨率下请求模数转换所需的操作; 用于存储多个寄存器值并输出与寄存器值对应的寄存器信号的逐次逼近寄存器; 数模转换器，用于将寄存器信号转换为模拟信号并将其作为参考电压信号输出; 以及用于将输入信号与参考电压信号进行比较并输出比较结果信号的比较器。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2012105029A Analog-digital conversion device and analog-digital conversion method 有权
标题翻译：模拟数字转换器件和模拟数字转换方法
公开(公告)号：JP2012105029A
公开(公告)日：2012-05-31
申请号：JP2010251383
申请日：2010-11-10
申请人： Nec Corp , 日本電気株式会社
发明人： YAMASE TOMOYUKI , NOGUCHI SHIGESANE
IPC分类号： H03M1/12 , H03M1/36 , H03M1/38 , H03M1/44
CPC分类号： H03M1/462
摘要： PROBLEM TO BE SOLVED: To provide an analog-digital conversion device and an analog-digital conversion method that can reduce power consumption while converting an analog signal to be converted into a digital signal at a resolution depending on a signal characteristic.SOLUTION: The analog-digital conversion device includes: a signal characteristic detection section 6 for detecting a predetermined characteristic of an input signal G1; a control signal generation section 7 for setting a resolution based on the signal characteristic detected by the signal characteristic detection section 6 and generating and outputting a control signal G10 commanding only operations required for analog-digital conversion at the resolution; and an analog-digital conversion unit 4 for converting the input signal into a digital signal at the set resolution as restricting operations according to the control signal G10.
摘要翻译：要解决的问题：提供一种模拟数字转换装置和模数转换方法，其可以根据信号特性以分辨率转换成要转换为数字信号的模拟信号，从而降低功耗。解决方案：模拟数字转换装置包括：用于检测输入信号G1的预定特性的信号特性检测部分6; 控制信号生成部分7，用于基于由信号特性检测部分6检测到的信号特性设置分辨率，并产生并输出控制信号G10，该控制信号仅指示以分辨率进行模拟数字转换所需的操作; 以及模拟数字转换单元4，用于根据控制信号G10将输入信号以设定分辨率转换为数字信号作为限制操作。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2014163971A Optical modulator, optical transmitter, optical transmission/reception system and optical modulator control method 审中-公开
标题翻译：光学调制器，光学发射器，光传输/接收系统和光调制器控制方法
公开(公告)号：JP2014163971A
公开(公告)日：2014-09-08
申请号：JP2013032081
申请日：2013-02-21
申请人： Nec Corp , 日本電気株式会社
发明人： YAMASE TOMOYUKI , NOGUCHI SHIGESANE
IPC分类号： G02F1/03 , G02F1/035
摘要： PROBLEM TO BE SOLVED: To reduce power consumption of an optical modulator having a division electrode structure.SOLUTION: An optical modulation part 11 has phase modulation areas PM1_0 to PM1_7 and PM2_0 to PM2_7 formed on optical waveguide paths 111 and 112, and outputs a n-value optical signal OUT. A decoder 12 outputs signals D1 to D7 having input digital signals DIN decoded. A drive circuit 14 is connected to the phase modulation areas PM1_0 to PM1_7 and PM2_0 to PM2_7, and has drivers DR11 to DR17 capable of changing over a band and power consumption by change-over of an internal circuit. A drive signal in accordance with the input digital signal DIN is output from the drivers DR11 to DR17 to the corresponding phase modulation area. A determination circuit 13 determines the band to be set to the drivers DR11 to DR17, receiving request transmission rate information INF. A change-over control circuit 15 performs the change-over of the internal circuits of the drivers DR11 to DR17 on the basis of the band indicated by a determination result.
摘要翻译：要解决的问题：降低具有分割电极结构的光调制器的功耗。解决方案：光调制部分11具有形成在光波导路径111和112上的相位调制区域PM1_0至PM1_7和PM2_0至PM2_7，并输出n 值的光信号OUT。解码器12输出具有DIN解码的输入数字信号的信号D1至D7。驱动电路14连接到相位调制区域PM1_0至PM1_7和PM2_0至PM2_7，并且具有能够通过内部电路的转换而改变带宽和功耗的驱动器DR11至DR17。根据输入数字信号DIN的驱动信号从驱动器DR11至DR17输出到相应的相位调制区域。确定电路13确定要被设置到驱动器DR11至DR17的频带，接收请求传输速率信息INF。转换控制电路15基于由确定结果指示的频带来执行驱动器DR11至DR17的内部电路的切换。

8. 发明专利

JP2014122964A Optical modulator, optical transmitter, optical transmission/reception system, and control method of optical modulator 审中-公开
标题翻译：光学调制器，光传输器，光传输/接收系统和光学调制器的控制方法
公开(公告)号：JP2014122964A
公开(公告)日：2014-07-03
申请号：JP2012278046
申请日：2012-12-20
申请人： Nec Corp , 日本電気株式会社
发明人： NOGUCHI SHIGESANE , YAMASE TOMOYUKI
IPC分类号： G02F1/03 , G02F1/035
摘要： PROBLEM TO BE SOLVED: To reduce power consumption of an optical transmitter having a split electrode structure.SOLUTION: An optical modulation part 11 includes a plurality of phase modulation regions formed on an optical waveguides 111 and 112, and outputs an optical signal OUT obtained by binary modulating input light IN. A driver circuit 12 includes drivers 121-127 connected to each of the plurality of phase modulation regions, and outputs a driving signal according to an input digital signal DIN from each of the drivers 121-127 to the corresponding phase modulation region. A determination circuit 13 receives light intensity information INF indicating a desired intensity of an optical signal outputted from the optical modulation part 11 to reach an external optical receiver, and then determines the number of drivers to be activated from among the drivers 121-127. A driver control circuit 14 activates the drivers of the number specified by the determination result of the determination circuit 13, and cuts power supply to the drivers other than the activated drivers.
摘要翻译：要解决的问题：降低具有分裂电极结构的光发射机的功耗。解决方案：光调制部分11包括形成在光波导111和112上的多个相位调制区域，并输出由二进制调制输入光IN。驱动器电路12包括连接到多个相位调制区域中的每一个的驱动器121-127，并且根据输入数字信号DIN从驱动器121-127中的每一个输出到相应的相位调制区域的驱动信号。确定电路13接收指示从光调制部分11输出的光信号的期望强度到达外部光接收机的光强度信息INF，然后从驱动器121-127中确定要激活的驱动器的数量。驱动器控制电路14激活由确定电路13的确定结果指定的号码的驱动器，并且切断除了激活的驱动器以外的驱动器的电源。

9. 发明专利

JP2011049746A A/d converter 有权
标题翻译： A / D转换器
公开(公告)号：JP2011049746A
公开(公告)日：2011-03-10
申请号：JP2009195423
申请日：2009-08-26
申请人： Nec Corp , 日本電気株式会社
发明人： NOGUCHI SHIGESANE , YAMASE TOMOYUKI
IPC分类号： H03M1/10 , H03M1/12
CPC分类号： H03M1/1004 , H03M1/1057 , H03M1/1215
摘要： PROBLEM TO BE SOLVED: To provide a high-accuracy A/D converter that adaptively calibrates characteristic variations among circuits of a plurality of A/D conversion circuits that operate in a time-interleaved manner and reduces a conversion error of the A/D converter as a whole, and a calibrating method thereof. SOLUTION: The A/D converter includes: N (N is an integer of two or more) A/D conversion circuits for main signal which operate in a time-interleaved manner; one redundant A/D conversion circuit; a calibrating signal generator; and a calibrating control circuit for using a calibration signal from the calibrating signal generator to adjust and calibrate a parameter of the redundant A/D conversion circuit. The A/D conversion circuits for main signal A/D converts an input signal by an interleave operation, and the redundant A/D conversion circuit is calibrated by an adjustment signal from the calibrating control circuit. Further, any of the A/D conversion circuits for main signal is replaced by the redundant A/D conversion circuit, and the new A/D conversion circuit for main signal operates in a time-interleaved manner to calibrate the new redundant A/D conversion circuit. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种高精度A / D转换器，其自适应地校准以时间交织方式工作的多个A / D转换电路的电路之间的特性变化，并且减小A的转换误差 / D转换器及其校准方法。解决方案：A / D转换器包括：N（N是两个或更多个的整数）用于以时间交织的方式工作的主信号的A / D转换电路; 一个冗余A / D转换电路; 校准信号发生器; 以及校准控制电路，用于使用来自校准信号发生器的校准信号来调整和校准冗余A / D转换电路的参数。用于主信号A / D的A / D转换电路通过交织操作转换输入信号，并且通过来自校准控制电路的调整信号校准冗余A / D转换电路。此外，用于主信号的任何A / D转换电路被冗余A / D转换电路代替，并且用于主信号的新的A / D转换电路以时间交替的方式工作，以校准新的冗余A / D 转换电路。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2002111587A SIGNAL INTERRUPTION DETECTING CIRCUIT 失效
公开(公告)号：JP2002111587A
公开(公告)日：2002-04-12
申请号：JP2000293232
申请日：2000-09-27
申请人： NEC CORP
发明人： NOGUCHI SHIGESANE
IPC分类号： H03K5/08 , H04B10/07 , H04B10/40 , H04B10/50 , H04B10/60 , H04B17/00 , H04B17/318 , H04L25/03 , H04B10/08 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/26 , H04B10/28
摘要： PROBLEM TO BE SOLVED: To shorten the time required for detecting data signal interruption. SOLUTION: A difference (output of a differential amplifier 8) between the average value (output of a full wave rectifier circuit 7) of data signals amplified to a fixed amplitude in a limiter amplifier 2 and a peak value (output of a peak value detection circuit 5) is compared with a reference voltage Vth in a comparator 9, and an alarm is issued, when the difference becomes the reference voltage Vth or less. Thus, compared to the conventional technique of detecting the decline of the peak value of reception signals to a prescribed value and detecting the data signal interruption, the detection time of the data signal interruption is shortened.

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