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

US08369713B2 Bit-rate discrimination method and its apparatus 有权
标题翻译：比特率鉴别方法及其装置
公开(公告)号：US08369713B2
公开(公告)日：2013-02-05
申请号：US12727121
申请日：2010-03-18
申请人： Kazutaka Hara , Shunji Kimura , Hirotaka Nakamura , Koji Kitahara , Yoshikazu Urabe , Masahiro Endo
发明人： Kazutaka Hara , Shunji Kimura , Hirotaka Nakamura , Koji Kitahara , Yoshikazu Urabe , Masahiro Endo
IPC分类号： H04B10/00
CPC分类号： H04L25/0262
摘要： In the present invention, unlike a conventional circuit, discrimination is not made by integrating a logical code that includes “0” and “1” to some extent and produced from a random code, but repetition of an identical pattern of a well-known preamble signal added to a head portion of a signal is discriminated when a bit-rate of the signal is changed. More specifically, the repetition of the identical pattern is converted into a consecutive identical signal to generate the consecutive identical signal (having a length of tens bits to thousands bits). Although the consecutive identical signal is longer than a same-code continuation length included in the signal, and is shorter than a time constant necessary to the conventional circuit by about one to three digits. Therefore, an integration time can be shortened to the same degree as the generated consecutive identical signal length, and the bit-rate can be discriminated at high speed within a preamble signal receiving time.
摘要翻译：在本发明中，与传统电路不同，不是通过将包含0和1的逻辑码在某种程度上进行积分并且由随机码产生，而是将已知的前同步信号的相同模式重复加到当信号的比特率改变时，鉴别信号的头部。更具体地，将相同图案的重复转换为连续的相同信号，以产生连续相同的信号（具有十位至数千比特的长度）。虽然连续相同的信号比包括在信号中的相同代码连续长度更长，并且比常规电路所需的时间常数大约一到三位数。因此，可以将积分时间缩短到与所生成的连续相同的信号长度相同的程度，并且可以在前导码信号接收时间内以高速判别比特率。

2. 发明申请

US20110229152A1 Bit-Rate Discrimination Method and Its Apparatus 有权
标题翻译：比特率鉴别方法及其设备
公开(公告)号：US20110229152A1
公开(公告)日：2011-09-22
申请号：US12727121
申请日：2010-03-18
申请人： Kazutaka Hara , Shunji Kimura , Hirotaka Nakamura , Koji Kitahara , Yoshikazu Urabe , Masahiro Endo
发明人： Kazutaka Hara , Shunji Kimura , Hirotaka Nakamura , Koji Kitahara , Yoshikazu Urabe , Masahiro Endo
IPC分类号： H04B10/06
CPC分类号： H04L25/0262
摘要： In the present invention, unlike a conventional circuit, discrimination is not made by integrating a logical code that includes “0” and “1” to some extent and produced from a random code, but repetition of an identical pattern of a well-known preamble signal added to a head portion of a signal is discriminated when a bit-rate of the signal is changed. More specifically, the repetition of the identical pattern is converted into a consecutive identical signal to generate the consecutive identical signal (having a length of tens bits to thousands bits). Although the consecutive identical signal is longer than a same-code continuation length included in the signal, and is shorter than a time constant necessary to the conventional circuit by about one to three digits. Therefore, an integration time can be shortened to the same degree as the generated consecutive identical signal length, and the bit-rate can be discriminated at high speed within a preamble signal receiving time.
摘要翻译：在本发明中，与传统电路不同，不是通过将包含“0”和“1”的逻辑码在某种程度上进行积分而产生的，而是由随机码产生，而是重复公知前导码的相同模式当信号的比特率改变时，鉴别加到信号头部的信号。更具体地，将相同图案的重复转换为连续的相同信号，以产生连续相同的信号（具有十位至数千比特的长度）。虽然连续相同的信号比包括在信号中的相同代码连续长度更长，并且比常规电路所需的时间常数大约一到三位数。因此，可以将积分时间缩短到与所生成的连续相同的信号长度相同的程度，并且可以在前导码信号接收时间内以高速判别比特率。

3. 发明申请

US20080309407A1 Transimpedance Amplifier 有权
标题翻译：互阻放大器
公开(公告)号：US20080309407A1
公开(公告)日：2008-12-18
申请号：US11658688
申请日：2005-08-03
申请人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imsi , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
发明人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imsi , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
IPC分类号： H03F3/45
CPC分类号： H03G3/3084 , H03F1/08 , H03F3/087 , H03G1/0088
摘要： A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
摘要翻译：增益切换确定电路（250）将来自级间缓冲器（230）的比较输入电压（Vc）与第一滞后特性进行比较/确定，并且基于比较/确定结果将增益切换信号（SEL）输出到第一和第二跨阻放大器核心电路（210,220），从而切换核心电路的增益。这避免了在用于增益切换确定的电平保持电路中保持具有长响应时间的比较输入电压，这允许对应于突发数据的瞬时增益切换确定和瞬时响应。

4. 发明授权

US08144813B2 Receiving method and receiving circuit 有权
标题翻译：接收方式和接收电路
公开(公告)号：US08144813B2
公开(公告)日：2012-03-27
申请号：US11659413
申请日：2005-08-02
申请人： Makoto Nakamura , Yuhki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka
发明人： Makoto Nakamura , Yuhki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka
IPC分类号： H04L25/06
CPC分类号： H03G3/3084 , H03F3/08 , H03F2200/375 , H04B10/6933
摘要： A receiving method according to the present invention adjusts a level of an output voltage signal by switching a gain to be used for converting an inputted current signal to a voltage signal, in a preamplifier. Performing offset compensation on the output voltage signal in an offset compensator, in a post amplifier. Adding a reset signal, whose polarity is made opposite to a polarity of the output voltage signal, to the output voltage signal, in the preamplifier. Detecting the reset signal having added to the output voltage signal, and resetting the offset compensator by use of the detected reset signal, in the post amplifier.
摘要翻译：根据本发明的接收方法通过在前置放大器中切换用于将输入的电流信号转换为电压信号的增益来调节输出电压信号的电平。在后置放大器中对偏置补偿器的输出电压信号执行偏移补偿。将其极性与输出电压信号的极性相反的复位信号添加到前置放大器中的输出电压信号。检测添加到输出电压信号的复位信号，并通过使用检测到的复位信号在后置放大器中复位偏移补偿器。

5. 发明授权

US07868701B2 Transimpedance amplifier 有权
标题翻译：互阻放大器
公开(公告)号：US07868701B2
公开(公告)日：2011-01-11
申请号：US11658688
申请日：2005-08-03
申请人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
发明人： Makoto Nakamura , Yohtaro Umeda , Jun Endou , Yuji Akatsu , Yuuki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka , Eiji Hyodo
IPC分类号： H03F3/08
CPC分类号： H03G3/3084 , H03F1/08 , H03F3/087 , H03G1/0088
摘要： A gain switching determination circuit (250) compares/determines a comparative input voltage (Vc) from an inter-stage buffer (230) with a first hysteresis characteristic, and outputs a gain switching signal (SEL) based on the comparison/determination result to first and second transimpedance amplifier core circuits (210, 220), thereby switching the gains of the core circuits. This obviates holding a comparison input voltage with long response time in a level holding circuit for gain switching determination, which allows instantaneous gain switching determination and instantaneous response corresponding to burst data.
摘要翻译：增益切换确定电路（250）将来自级间缓冲器（230）的比较输入电压（Vc）与第一滞后特性进行比较/确定，并且基于比较/确定结果将增益切换信号（SEL）输出到第一和第二跨阻放大器核心电路（210,220），从而切换核心电路的增益。这避免了在用于增益切换确定的电平保持电路中保持具有长响应时间的比较输入电压，这允许对应于突发数据的瞬时增益切换确定和瞬时响应。

6. 发明授权

US09025970B2 Optical signal cutoff detection circuit and optical receiver 有权
标题翻译：光信号截止检测电路和光接收机
公开(公告)号：US09025970B2
公开(公告)日：2015-05-05
申请号：US13578811
申请日：2011-02-14
申请人： Hiroshi Koizumi , Kazuyoshi Nishimura , Masafumi Nogawa , Yoshikazu Urabe
发明人： Hiroshi Koizumi , Kazuyoshi Nishimura , Masafumi Nogawa , Yoshikazu Urabe
IPC分类号： H04B10/06 , H04B10/69
CPC分类号： H04B10/69 , H04B10/697
摘要： A comparator (11) outputs, out of an electrical signal input from a trans impedance amplifier (TIA) via a coupling capacitor, pulses having amplitudes equal to or larger than a reference value as a comparison output signal (Cout). An analog holding circuit (12) charges a holding capacitor with each pulse contained in the comparison output signal (Cout) and also removes a DC voltage obtained by the charging via a discharging resistor, thereby generating a holding output signal (Hout) that changes in accordance with the presence/absence of input of an optical signal. This allows to perform an autonomous operation without any necessity of an external control signal and properly detect the presence/absence of input of an optical signal.
摘要翻译：比较器（11）通过耦合电容从反向阻抗放大器（TIA）输入的电信号中输出具有等于或大于参考值的幅度的脉冲作为比较输出信号（Cout）。模拟保持电路（12）对包含在比较输出信号（Cout）中的每个脉冲对保持电容器充电，并且还通过放电电阻去除通过充电获得的DC电压，从而产生保持输出信号（Hout）根据光信号的输入的存在/不存在。这允许执行自主操作而不需要外部控制信号并且适当地检测光信号的输入的存在/不存在。

7. 发明申请

US20130039649A1 OPTICAL SIGNAL CUTOFF DETECTION CIRCUIT AND OPTICAL RECEIVER 有权
标题翻译：光信号切断检测电路和光接收器
公开(公告)号：US20130039649A1
公开(公告)日：2013-02-14
申请号：US13578811
申请日：2011-02-14
申请人： Hiroshi Koizumi , Kazuyoshi Nishimura , Masafumi Nogawa , Yoshikazu Urabe
发明人： Hiroshi Koizumi , Kazuyoshi Nishimura , Masafumi Nogawa , Yoshikazu Urabe
IPC分类号： H04B10/08
CPC分类号： H04B10/69 , H04B10/697
摘要： A comparator (11) outputs, out of an electrical signal input from a trans impedance amplifier (TIA) via a coupling capacitor, pulses having amplitudes equal to or larger than a reference value as a comparison output signal (Cout). An analog holding circuit (12) charges a holding capacitor with each pulse contained in the comparison output signal (Cout) and also removes a DC voltage obtained by the charging via a discharging resistor, thereby generating a holding output signal (Hout) that changes in accordance with the presence/absence of input of an optical signal. This allows to perform an autonomous operation without any necessity of an external control signal and properly detect the presence/absence of input of an optical signal.
摘要翻译：比较器（11）通过耦合电容从反向阻抗放大器（TIA）输入的电信号中输出具有等于或大于参考值的幅度的脉冲作为比较输出信号（Cout）。模拟保持电路（12）对包含在比较输出信号（Cout）中的每个脉冲对保持电容器充电，并且还通过放电电阻去除通过充电获得的DC电压，从而产生保持输出信号（Hout）根据光信号的输入的存在/不存在。这允许执行自主操作而不需要外部控制信号并且适当地检测光信号的输入的存在/不存在。

8. 发明申请

US20070292139A1 Receiving Method and Receiving Circuit 有权
标题翻译：接收方式和接收电路
公开(公告)号：US20070292139A1
公开(公告)日：2007-12-20
申请号：US11659413
申请日：2005-08-02
申请人： Makoto Nakamura , Yuhki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka
发明人： Makoto Nakamura , Yuhki Imai , Masatoshi Tobayashi , Yoshikazu Urabe , Hatsushi Iizuka
IPC分类号： H04B10/00
CPC分类号： H03G3/3084 , H03F3/08 , H03F2200/375 , H04B10/6933
摘要： A receiving method according to the present invention adjusts a level of an output voltage signal by switching a gain to be used for converting an inputted current signal to a voltage signal, in a preamplifier. Performing offset compensation on the output voltage signal in an offset compensator, in a post amplifier. Adding a reset signal, whose polarity is made opposite to a polarity of the output voltage signal, to the output voltage signal, in the preamplifier. Detecting the reset signal having added to the output voltage signal, and resetting the offset compensator by use of the detected reset signal, in the post amplifier.
摘要翻译：根据本发明的接收方法通过在前置放大器中切换用于将输入的电流信号转换为电压信号的增益来调节输出电压信号的电平。在后置放大器中对偏置补偿器的输出电压信号执行偏移补偿。将其极性与输出电压信号的极性相反的复位信号添加到前置放大器中的输出电压信号。检测添加到输出电压信号的复位信号，并通过使用检测到的复位信号在后置放大器中复位偏移补偿器。

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