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1. 发明授权

EP2326002B1 VECTOR SYNTHESIS TYPE PHASE SHIFTER, OPTICAL TRANSCEIVER, AND CONTROL CIRCUIT 有权
标题翻译：矢量合成移相器，光发送/接收装置及其控制电路
公开(公告)号：EP2326002B1
公开(公告)日：2015-07-29
申请号：EP09808216.7
申请日：2009-08-12
申请人： Nippon Telegraph And Telephone Corporation
发明人： NOSAKA,Hideyuki , NAGATANI, Munehiko , YAMANAKA,Shogo , SANO,Kimikazu , MURATA,Koichi , ONODERA,Kiyomitsu , ENOKI,Takatomo
IPC分类号： H03H11/20 , H03H17/08 , H03H11/04 , H03H7/01 , H04B10/50
CPC分类号： H03H11/20 , H03H2007/0192 , H03H2011/0494 , H04B10/505 , H04B2210/517

2. 发明授权

EP2383894B1 Current switch cell and digital/analog converter 有权
标题翻译：电源开关单元和数字 - 模拟转换器
公开(公告)号：EP2383894B1
公开(公告)日：2013-10-23
申请号：EP10735875.6
申请日：2010-01-28
申请人： Nippon Telegraph And Telephone Corporation
发明人： NAGATANI, Munehiko , NOSAKA, Hideyuki , YAMANAKA, Shogo , SANO, Kimikazu , MURATA, Koichi
IPC分类号： H03M1/66 , H03M1/74
CPC分类号： H03M1/662 , H03M1/742

3. 发明公开

EP3731422A1 IC CHIP 有权
公开(公告)号：EP3731422A1
公开(公告)日：2020-10-28
申请号：EP18892943.4
申请日：2018-12-13
申请人： Nippon Telegraph and Telephone Corporation
发明人： NAGATANI, Munehiko , NOSAKA, Hideyuki , NAKANO, Shinsuke
IPC分类号： H04B3/02 , H03H7/06 , H04B1/00
摘要： A reception-side IC chip (1a) includes a pad (15) which is connected to a transmission line (2) which is outside the chip and has a characteristic impedance Z0 of 50 Ω, a signal line (16), one end of which is connected to the pad (15), a reception-side input unit circuit (10) configured to receive a signal (S) transmitted from a transmission-side IC chip via the transmission line (2), a 50-Ω termination resistor (11), for impedance matching, which is connected between a predetermined voltage and the other end of the signal line (16) and is configured to terminate the transmission line (2), and a capacitor (12) inserted between a node (A) of the signal line (16) and the termination resistor (11) and an input terminal (In) of the reception-side input unit circuit (10). A DC-blocking circuit is formed by the capacitor (12).

4. 发明公开

EP2383894A1 CURRENT SWITCH CELL AND DIGITAL/ANALOG CONVERTER 有权
标题翻译： Stromschalterzelle和Digital-Analog-Wandler
公开(公告)号：EP2383894A1
公开(公告)日：2011-11-02
申请号：EP10735875.6
申请日：2010-01-28
申请人： Nippon Telegraph And Telephone Corporation
发明人： NAGATANI, Munehiko , NOSAKA, Hideyuki , YAMANAKA, Shogo , SANO, Kimikazu , MURATA, Koichi
IPC分类号： H03M1/74
CPC分类号： H03M1/662 , H03M1/742
摘要： Two D flip-flops (D-FF MA , D-FF MB ) output two half-rate signals (D MR-A , D MR-B ) by dividing a digital input signal (D M ) into two signals and retiming them based on a clock signal (CLK) and a negative-phase clock signal (CLKB). First and second switches (S M1 , S M2 ) are driven by the two half-rate signals (D MR-A , D MR-B ). Third and fourth switches (S M3 , S M4 ) are driven by a select signal SW and a negative-phase select signal SWB that have the same frequency as that of the clock signal (CLK) but a different phase from that of the clock signal (CLK). The current supplied from a current source (1) to a load (4) thus becomes a current signal corresponding to a conversion frequency twice the frequency of the clock signal (CLK).
摘要翻译：两个D触发器（D-FFMA，D-FF MB）通过将数字输入信号（DM）分成两个信号并基于它们重新定时输出两个半速率信号（D MR-A，D MR-B）时钟信号（CLK）和负相位时钟信号（CLKB）。第一和第二开关（S M1，S M2）由两个半速率信号（D MR-A，D MR-B）驱动。第三和第四开关（S M3，S M4）由与时钟信号（CLK）的频率相同的频率的选择信号SW和负相位选择信号SWB驱动，但与时钟信号的相位不同（CLK）。因此，从电流源（1）提供给负载（4）的电流变为对应于时钟信号（CLK）频率的两倍的转换频率的电流信号。

5. 发明公开

EP2996266A1 OPTICAL MODULATOR DRIVER CIRCUIT AND OPTICAL TRANSMITTER 审中-公开
标题翻译：驱动电路用于光学调制器和光发射器
公开(公告)号：EP2996266A1
公开(公告)日：2016-03-16
申请号：EP14794331.0
申请日：2014-05-09
申请人： Nippon Telegraph and Telephone Corporation
发明人： NAGATANI, Munehiko , NOSAKA, Hideyuki , ITOH, Toshihiro , MURATA, Koichi , FUKUYAMA, Hiroyuki , SAIDA, Takashi , KAMEI, Shin , YAMAZAKI, Hiroshi , KIKUCHI, Nobuhiro , KOIZUMI, Hiroshi , NOGAWA, Masafumi , KATSURAI, Hiroaki , UZAWA, Hiroyuki , KATAOKA, Tomoyoshi , FUJIWARA, Naoki , KAWAKAMI, Hiroto , HORIKOSHI, Kengo , BOUVIER, Yves , YONEYAMA, Mikio , AISAWA, Shigeki , SUZUKI, Masahiro
IPC分类号： H04B10/516 , H03F1/00 , H03F3/45 , H03F3/60 , H03G3/18
CPC分类号： H04B10/541 , H03F1/223 , H03F1/32 , H03F3/04 , H03F3/082 , H03F3/195 , H03F3/245 , H03F3/45085 , H03F3/45089 , H03F3/45183 , H03F3/45188 , H03F3/602 , H03F2200/18 , H03F2200/219 , H03F2200/255 , H03F2200/27 , H03F2200/336 , H03F2200/411 , H03F2200/72 , H03F2200/75 , H03F2203/45258 , H03F2203/45374 , H03F2203/45392 , H03F2203/45454 , H03F2203/45466 , H03F2203/45471 , H03F2203/45486 , H03F2203/45496 , H03F2203/45504 , H03F2203/45506 , H03F2203/45702 , H03G1/0023 , H03G1/0082 , H03G1/0088 , H03G3/00 , H03G3/001 , H03G3/3084 , H04B10/5561 , H04B10/588
摘要： An optical modulator driver circuit (1) includes an amplifier (50, Q10, Q11, R10 - R13), and a current amount adjustment circuit (51) capable of adjusting a current amount of the amplifier (50) in accordance with a desired operation mode. The current amount adjustment circuit (51) includes at least two current sources (IS10) that are individually ON/OFF-controllable in accordance with a binary control signal representing the desired operation mode.

6. 发明公开

EP3343778A1 SIGNAL GENERATING DEVICE 有权
公开(公告)号：EP3343778A1
公开(公告)日：2018-07-04
申请号：EP16838797.5
申请日：2016-08-19
申请人： Nippon Telegraph And Telephone Corporation
发明人： YAMAZAKI, Hiroshi , NAGATANI, Munehiko , NOSAKA, Hideyuki , SANO, Akihide , MIYAMOTO, Yutaka
IPC分类号： H03M1/66 , H04J11/00
CPC分类号： H03M1/74 , H03M1/66 , H04J11/00 , H04J11/0036 , H04J11/0056 , H04L27/263 , H04L27/2634
摘要： A DAC on a conventional CMOS platform has an analog output bandwidth of about 15 GHz, which is insufficient and causes one of bottlenecks in realizing the increase of capacity for communication systems. In the conventional technique, only an output having a bandwidth identical to the bandwidth of individual DACs has been obtained even by using a plurality of DACs. Also, even when the output of a bandwidth broader than the individual DAC is obtained, there has been a problem associated with asymmetricity of a circuit configuration. In a signal generating device of the present invention, a plurality of normal DACs are combined to realize an analog output of a broader bandwidth beyond the output bandwidth of the individual DACs, and the problem of the asymmetricity of the circuit configuration is also resolved. A desired signal is separated into a low-frequency signal and a high-frequency signal in a frequency domain, and a series of operation of constant (r)-folding the amplitude of the high-frequency signal and shifting it on the frequency axis to superimpose it on the low-frequency signal are made in a digital domain. The output of each DAC is switched by an analog multiplexer. A configuration example adapted to occurrence of a multicarrier signal is also disclosed.

7. 发明授权

EP2365413B1 VOLTAGE GENERATOR, CONTROL CIRCUIT, VECTOR SYNTHESIS TYPE PHASE SHIFTER AND OPTICAL TRANSCEIVER 有权
标题翻译：发电机控制电路，矢量合成相滑梯和光发射/接收设备
公开(公告)号：EP2365413B1
公开(公告)日：2014-07-02
申请号：EP09831750.6
申请日：2009-08-12
申请人： Nippon Telegraph And Telephone Corporation
发明人： NOSAKA,Hideyuki , NAGATANI, Munehiko , YAMANAKA,Shogo , SANO,Kimikazu , MURATA,Koichi , ONODERA,Kiyomitsu , ENOKI,Takatomo
IPC分类号： H03H11/20 , G05F3/08 , H03F3/45
CPC分类号： H03H11/20 , H03F3/45085 , H03F3/45475 , H03F2200/336 , H03F2200/408 , H03F2203/45138 , H03F2203/45352 , H03F2203/45498 , H03F2203/45702

8. 发明公开

EP2365413A1 VOLTAGE GENERATOR, CONTROL CIRCUIT, VECTOR SYNTHESIS TYPE PHASE SHIFTER AND OPTICAL TRANSCEIVER 有权
标题翻译： SPANNUNGSGENERATOR，STEUERSCHALTUNG，VEKTORSYNTHESE-PHASENSCHIEBER UND OPTISCHES SENDE- /EMPFANGSGERÄT
公开(公告)号：EP2365413A1
公开(公告)日：2011-09-14
申请号：EP09831750.6
申请日：2009-08-12
申请人： Nippon Telegraph And Telephone Corporation
发明人： NOSAKA,Hideyuki , NAGATANI, Munehiko , YAMANAKA,Shogo , SANO,Kimikazu , MURATA,Koichi , ONODERA,Kiyomitsu , ENOKI,Takatomo
IPC分类号： G05F3/08 , H03F3/45 , H03H11/20 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/142 , H04B10/152 , H04B10/26 , H04B10/28
CPC分类号： H03H11/20 , H03F3/45085 , H03F3/45475 , H03F2200/336 , H03F2200/408 , H03F2203/45138 , H03F2203/45352 , H03F2203/45498 , H03F2203/45702
摘要： A voltage generator (400) includes a resistor ladder including resistors (4000 - 4008) which divide a supplied voltage to generate a plurality of reference voltages, a resistor (4009) provided between a power supply voltage (VCC) and one terminal of the resistor ladder, and a resistor (4010) provided between a power supply voltage (VEE) and the other terminal of the resistor ladder.
摘要翻译：电压发生器（400）包括电阻梯（包括分压所提供的电压以产生多个参考电压的电阻器），电阻器（4009），设置在电源电压（VCC）和电阻器的一个端子之间梯形电阻器，以及设置在电源电压（VEE）和电阻梯的另一端子之间的电阻器（4010）。

9. 发明公开

EP2326002A1 VECTOR SYNTHESIS TYPE PHASE SHIFTER, OPTICAL TRANSCEIVER, AND CONTROL CIRCUIT 有权
标题翻译： VEKTORSYNTHESE-PHASENVERSCHIEBER，OPTISCHES SENDE- /EMPFANGSGERÄTUND STEERERSCHALTUNGDAFÜR
公开(公告)号：EP2326002A1
公开(公告)日：2011-05-25
申请号：EP09808216.7
申请日：2009-08-12
申请人： Nippon Telegraph And Telephone Corporation
发明人： NOSAKA,Hideyuki , NAGATANI, Munehiko , YAMANAKA,Shogo , SANO,Kimikazu , MURATA,Koichi , ONODERA,Kiyomitsu , ENOKI,Takatomo
IPC分类号： H03H11/20 , H03H17/08 , H04B10/04 , H04B10/06 , H04B10/142 , H04B10/152
CPC分类号： H03H11/20 , H03H2007/0192 , H03H2011/0494 , H04B10/505 , H04B2210/517
摘要： A vector sum phase shifter includes a 90° phase shifter (1) which generates an in-phase signal (VINI) and a quadrature signal (VINQ) from an input signal (VIN), a four-quadrant multiplier (2I) which changes the amplitude of the in-phase signal (VINI) based on a control signal (CI), a four-quadrant multiplier (2Q) which changes the amplitude of the quadrature signal (VINQ) based on a control signal (CQ), a combiner (3) which combines the in-phase signal (VINI) and the quadrature signal (VINQ), and a control circuit (4). The control circuit (4) includes a voltage generator which generates a reference voltage, and a differential amplifier which outputs the difference signal between a control voltage (VC) and the reference voltage as the control signal (CI, CQ). The differential amplifier performs an analog operation of converting the control voltage (VC) into the control signal (CI, CQ) similar to a sine wave or a cosine wave.
摘要翻译：矢量和移相器包括从输入信号（VIN）产生同相信号（VINI）和正交信号（VINQ）的90°移相器（1），四象限乘法器（2I），其改变基于控制信号（CI）的同相信号（VINI）的幅度，基于控制信号（CQ）改变正交信号（VINQ）的振幅的四象限乘法器（2Q），组合器 3），其组合了同相信号（VINI）和正交信号（VINQ），以及控制电路（4）。控制电路（4）包括产生参考电压的电压发生器和输出控制电压（VC）和参考电压之间的差分信号作为控制信号（CI，CQ）的差分放大器。差分放大器执行将控制电压（VC）转换成与正弦波或余弦波相似的控制信号（CI，CQ）的模拟操作。

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