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1. 发明授权

US08120388B2 Comparator, sample-and-hold circuit, differential amplifier, two-stage amplifier, and analog-to-digital converter 有权
标题翻译：比较器，采样保持电路，差分放大器，两级放大器和模数转换器
公开(公告)号：US08120388B2
公开(公告)日：2012-02-21
申请号：US11624270
申请日：2007-01-18
申请人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
发明人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
IPC分类号： H03K5/22 , G11C27/02
CPC分类号： G11C27/024 , G11C27/026 , H03F3/45089 , H03F2203/45626 , H03F2203/45631 , H03F2203/45651 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H03K5/2481 , H03K5/249 , H03M1/142 , H03M1/206 , H03M1/365
摘要： A comparator includes a sampling capacitor, a first switching unit which is connected to an input end of the sampling capacitor and which applies an input signal to the input end of the sampling capacitor, a second switching unit which is connected to the input end of the sampling capacitor and which applies a reference signal to the input end of the sampling capacitor, an output transistor connected to an output end of the sampling capacitor in a source follower connection manner or an emitter follower connection manner, and a third switching unit which is connected to an output end of the sampling capacitor and which maintains maintaining a voltage at the output end of the sampling capacitor to be constant. The input signal is compared with the reference signal.
摘要翻译：比较器包括采样电容器，第一开关单元，其连接到采样电容器的输入端并将输入信号施加到采样电容器的输入端;第二开关单元，连接到采样电容器的输入端; 采样电容器，并且将采样电容器的输入端施加参考信号，以源极跟随器连接方式或射极跟随器连接方式连接到采样电容器的输出端的输出晶体管，以及连接到采样电容器的第三开关单元到采样电容器的输出端，并且维持采样电容器输出端的电压保持恒定。将输入信号与参考信号进行比较。

2. 发明申请

US20120268302A1 ANALOG-DIGITAL CONVERTER AND SIGNAL PROCESSING SYSTEM 失效
标题翻译：模拟数字转换器和信号处理系统
公开(公告)号：US20120268302A1
公开(公告)日：2012-10-25
申请号：US13435173
申请日：2012-03-30
申请人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
发明人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
IPC分类号： H03M1/38 , H03M1/12
CPC分类号： H03M1/0604 , H03G1/0029 , H03M1/0682 , H03M1/168
摘要： An AD converter includes: AD conversion stages configured to generate digital data having a value corresponding to a relationship between two analog signals being input and amplifying two analog residual signals with a first amplifier and a second amplifier with gain to be controlled to output the signals; and a gain control part configured to control gain of the first amplifier and the second amplifier on the basis of a monitoring result of the output signals of the first amplifier and the second amplifier. The first amplifier and the second amplifier are formed of open-loop amplifiers, and the gain control part takes out amplitude information of the output signals of the first amplifier and the second amplifier in at least one of the AD conversion stages and performs gain control so that amplitude of the analog signals being output from the stage converges on setting amplitude being set.
摘要翻译： AD转换器包括：AD转换级，被配置为产生具有与输入的两个模拟信号之间的关系的值相对应的数值的数字数据，并且利用第一放大器放大两个模拟残差信号，以及具有待控制的增益的第二放大器以输出信号; 以及增益控制部，被配置为基于第一放大器和第二放大器的输出信号的监视结果来控制第一放大器和第二放大器的增益。第一放大器和第二放大器由开环放大器形成，并且增益控制部分在至少一个AD转换级中取出第一放大器和第二放大器的输出信号的幅度信息，并执行增益控制从阶段输出的模拟信号的幅度在设定的设定幅度上收敛。

3. 发明申请

US20070152722A1 Comparator, Sample-and-Hold Circuit, Differential Amplifier, Two-Stage Amplifier, and Analog-to-Digital Converter 有权
标题翻译：比较器，采样保持电路，差分放大器，两级放大器和模数转换器
公开(公告)号：US20070152722A1
公开(公告)日：2007-07-05
申请号：US11624270
申请日：2007-01-18
申请人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
发明人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
IPC分类号： H03L7/06
CPC分类号： G11C27/024 , G11C27/026 , H03F3/45089 , H03F2203/45626 , H03F2203/45631 , H03F2203/45651 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H03K5/2481 , H03K5/249 , H03M1/142 , H03M1/206 , H03M1/365
摘要： A comparator includes a sampling capacitor, a first switching unit which is connected to an input end of the sampling capacitor and which applies an input signal to the input end of the sampling capacitor, a second switching unit which is connected to the input end of the sampling capacitor and which applies a reference signal to the input end of the sampling capacitor, an output transistor connected to an output end of the sampling capacitor in a source follower connection manner or an emitter follower connection manner, and a third switching unit which is connected to an output end of the sampling capacitor and which maintains maintaining a voltage at the output end of the sampling capacitor to be constant. The input signal is compared with the reference signal.
摘要翻译：比较器包括采样电容器，第一开关单元，其连接到采样电容器的输入端并将输入信号施加到采样电容器的输入端;第二开关单元，连接到采样电容器的输入端; 采样电容器，并且将采样电容器的输入端施加参考信号，以源极跟随器连接方式或射极跟随器连接方式连接到采样电容器的输出端的输出晶体管，以及连接到所述采样电容器的第三开关单元到采样电容器的输出端，并且维持采样电容器输出端的电压保持恒定。将输入信号与参考信号进行比较。

4. 发明授权

US07215159B2 Comparator, sample-and-hold circuit, differential amplifier, two-stage amplifier, and analog-to-digital converter 有权
标题翻译：比较器，采样保持电路，差分放大器，两级放大器和模数转换器
公开(公告)号：US07215159B2
公开(公告)日：2007-05-08
申请号：US10818776
申请日：2004-04-06
申请人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
发明人： Yasuhide Shimizu , Shigemitsu Murayama , Yukitoshi Yamashita , Junji Toyomura
IPC分类号： H03K5/22 , G11C27/02
CPC分类号： G11C27/024 , G11C27/026 , H03F3/45089 , H03F2203/45626 , H03F2203/45631 , H03F2203/45651 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H03K5/2481 , H03K5/249 , H03M1/142 , H03M1/206 , H03M1/365
摘要： A comparator includes a sampling capacitor, a first switching unit which is connected to an input end of the sampling capacitor and which applies an input signal to the input end of the sampling capacitor, a second switching unit which is connected to the input end of the sampling capacitor and which applies a reference signal to the input end of the sampling capacitor, an output transistor connected to an output end of the sampling capacitor in a source follower connection manner or an emitter follower connection manner, and a third switching unit which is connected to an output end of the sampling capacitor and which maintains maintaining a voltage at the output end of the sampling capacitor to be constant. The input signal is compared with the reference signal.
摘要翻译：比较器包括采样电容器，第一开关单元，其连接到采样电容器的输入端并将输入信号施加到采样电容器的输入端;第二开关单元，连接到采样电容器的输入端; 采样电容器，并且将采样电容器的输入端施加参考信号，以源极跟随器连接方式或射极跟随器连接方式连接到采样电容器的输出端的输出晶体管，以及连接到所述采样电容器的第三开关单元到采样电容器的输出端，并且维持采样电容器输出端的电压保持恒定。将输入信号与参考信号进行比较。

5. 发明授权

US08497794B2 Analog-digital converter and signal processing system 失效
标题翻译：模拟数字转换器和信号处理系统
公开(公告)号：US08497794B2
公开(公告)日：2013-07-30
申请号：US13435173
申请日：2012-03-30
申请人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
发明人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
IPC分类号： H03M1/38
CPC分类号： H03M1/0604 , H03G1/0029 , H03M1/0682 , H03M1/168
摘要： An AD converter includes: AD conversion stages configured to generate digital data having a value corresponding to a relationship between two analog signals being input and amplifying two analog residual signals with a first amplifier and a second amplifier with gain to be controlled to output the signals; and a gain control part configured to control gain of the first amplifier and the second amplifier on the basis of a monitoring result of the output signals of the first amplifier and the second amplifier. The first amplifier and the second amplifier are formed of open-loop amplifiers, and the gain control part takes out amplitude information of the output signals of the first amplifier and the second amplifier in at least one of the AD conversion stages and performs gain control so that amplitude of the analog signals being output from the stage converges on setting amplitude being set.
摘要翻译： AD转换器包括：AD转换级，被配置为产生数字数据，该数字数据具有与被输入的两个模拟信号之间的关系的值，并且与第一放大器放大两个模拟残差信号;以及第二放大器，其具有待控制的增益以输出信号; 以及增益控制部，其被配置为基于所述第一放大器和所述第二放大器的输出信号的监视结果来控制所述第一放大器和所述第二放大器的增益。第一放大器和第二放大器由开环放大器形成，并且增益控制部分在至少一个AD转换级中取出第一放大器和第二放大器的输出信号的幅度信息，并执行增益控制从阶段输出的模拟信号的幅度在设定的设定幅度上收敛。

6. 发明授权

US07649486B2 Flash A/D converter 失效
标题翻译：闪存A / D转换器
公开(公告)号：US07649486B2
公开(公告)日：2010-01-19
申请号：US12140803
申请日：2008-06-17
申请人： Junji Toyomura , Yukitoshi Yamashita , Shogo Nakamura , Norifumi Kanagawa , Yasuhide Shimizu , Koichi Ono
发明人： Junji Toyomura , Yukitoshi Yamashita , Shogo Nakamura , Norifumi Kanagawa , Yasuhide Shimizu , Koichi Ono
IPC分类号： H03M1/36
CPC分类号： H03M1/0863 , H03F3/45188 , H03F2203/45302 , H03F2203/45396 , H03M1/205 , H03M1/365
摘要： A flash A/D converter includes a reference voltage generator for generating a plurality of reference voltages, a first group of amplifiers having a plurality of amplifiers each of which amplifies a difference voltage between each reference voltage generated by the reference voltage generator and a voltage of an input signal, and a second group of amplifiers having a plurality of amplifiers. Each amplifier of the first group of amplifiers is a differential amplifier having a different pair formed of a plurality of sets of cascade-connected transistors, and has a first switch for short-circuiting respective cascade connection portions of the plurality of transistors configuring the differential pair. Each amplifier of the second group of amplifiers is a differential amplifier having a differential pair formed of at least two transistors and has a second switch for short-circuiting a portion between input units of the differential pair. The first switch and the second switch are controlled to open and close by a control clock of a predetermined period.
摘要翻译：闪光A / D转换器包括用于产生多个参考电压的参考电压发生器，具有多个放大器的第一组放大器，每个放大器放大由参考电压发生器产生的每个参考电压之间的差值电压和输入信号和具有多个放大器的第二组放大器。第一组放大器的每个放大器是具有由多组级联晶体管组成的不同对的差分放大器，并且具有第一开关，用于短路构成差分对的多个晶体管的相应级联连接部分。第二组放大器的每个放大器是具有由至少两个晶体管形成的差分对的差分放大器，并且具有用于使差分对的输入单元之间的部分短路的第二开关。第一开关和第二开关通过预定周期的控制时钟被控制为打开和关闭。

7. 发明授权

US06985030B2 Differential amplifier, two-stage amplifier including the differential amplifier, and analog-to-digital converter including the differential amplifier 有权
标题翻译：差分放大器，包括差分放大器的两级放大器和包含差分放大器的模数转换器
公开(公告)号：US06985030B2
公开(公告)日：2006-01-10
申请号：US10818791
申请日：2004-04-06
申请人： Yasuhide Shimizu , Hideyuki Katsuta , Yukitoshi Yamashita , Nobuhiko Yokoyama
发明人： Yasuhide Shimizu , Hideyuki Katsuta , Yukitoshi Yamashita , Nobuhiko Yokoyama
IPC分类号： H03F1/02 , H03M1/12
CPC分类号： H03F3/45192 , H03F3/45188 , H03F3/45771 , H03F2203/45651 , H03F2203/45652 , H03F2203/45696 , H03F2203/45702 , H03F2203/45726 , H03M1/148
摘要： A differential amplifier has an in-phase input terminal to which an input signal is applied through a first switching unit, an anti-phase input terminal to which a reference signal is applied through a second switching unit, and a third switching unit between the in-phase and anti-phase input terminals. The potential difference between the in-phase and anti-phase input terminals is differentially amplified by setting the first and second switching units to be on and the third switching unit to be off. Also, the in-phase and anti-phase input terminals are short-circuited to have a high impedance by setting the first and second switching units to be off and the third switching unit to be on.
摘要翻译：差分放大器具有同相输入端子，通过第一开关单元向其施加输入信号，通过第二开关单元向其施加参考信号的反相输入端子，以及第三开关单元相和反相输入端子。通过将第一和第二开关单元设置为导通而使第三开关单元断开，同相和反相输入端子之间的电位差被差分放大。此外，通过将第一和第二开关单元设置为关闭并且第三开关单元导通，同相和反相输入端子被短路以具有高阻抗。

8. 发明申请

US20120268300A1 ANALOG-TO-DIGITAL CONVERTER AND SIGNAL PROCESSING SYSTEM 失效
标题翻译：模拟数字转换器和信号处理系统
公开(公告)号：US20120268300A1
公开(公告)日：2012-10-25
申请号：US13435178
申请日：2012-03-30
申请人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
发明人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
IPC分类号： H03M1/12
CPC分类号： H03M1/1225 , H03M1/162
摘要： An analog-to-digital (A/D) converter includes: a coarse A/D converter configured to convert, when converting an analog input signal into an N-bit digital signal, the analog input signal into a high-order m-bit digital signal; a fine A/D converter configured to convert the analog input signal into a low-order n-bit (where n=N−m) digital signal based on a conversion result of the coarse A/D converter; and a track-and-hold (TH) circuit configured to sample the analog input signal, to supply a comparison voltage compared with a coarse reference voltage to the coarse A/D converter, and to supply a comparison voltage compared with a fine reference voltage based on a conversion result of the fine A/D converter to the fine A/D converter. The TH circuit is configured to share a sampling capacitor in a selective input path for the analog input signal, the coarse reference voltage, and the fine reference voltage.
摘要翻译：一种模数（A / D）转换器包括：粗A / D转换器，被配置为当将模拟输入信号转换为N位数字信号时，将模拟输入信号转换成高阶m位数字信号; 配置为基于粗略A / D转换器的转换结果将模拟输入信号转换成低阶n位（其中n = N-m）数字信号的精细A / D转换器; 以及轨道保持（TH）电路，被配置为对所述模拟输入信号进行采样，以将与粗略A / D转换器的粗略参考电压相比较的比较电压提供给与比较电压相比较的精细参考电压基于精细A / D转换器对精细A / D转换器的转换结果。 TH电路被配置为在模拟输入信号，粗参考电压和精细参考电压的选择输入路径中共享采样电容器。

9. 发明申请

US20090015451A1 FLASH A/D CONVERTER 失效
标题翻译：闪存A / D转换器
公开(公告)号：US20090015451A1
公开(公告)日：2009-01-15
申请号：US12140803
申请日：2008-06-17
申请人： Junji Toyomura , Yukitoshi Yamashita , Shogo Nakamura , Norifumi Kanagawa , Yasuhide Shimizu , Koichi Ono
发明人： Junji Toyomura , Yukitoshi Yamashita , Shogo Nakamura , Norifumi Kanagawa , Yasuhide Shimizu , Koichi Ono
IPC分类号： H03M1/12 , H03M1/34
CPC分类号： H03M1/0863 , H03F3/45188 , H03F2203/45302 , H03F2203/45396 , H03M1/205 , H03M1/365
摘要： A flash A/D converter includes a reference voltage generator for generating a plurality of reference voltages, a first group of amplifiers having a plurality of amplifiers each of which amplifies a difference voltage between each reference voltage generated by the reference voltage generator and a voltage of an input signal, and a second group of amplifiers having a plurality of amplifiers. Each amplifier of the first group of amplifiers is a differential amplifier having a differential pair formed of a plurality of sets of cascode-connected transistors, and has a first switch for short-circuiting respective cascode connection portions of the plurality of transistors configuring the differential pair. Each amplifier of the second group of amplifiers is a differential amplifier having a differential pair formed of at least two transistors and has a second switch for short-circuiting a portion between input units of the differential pair. The first switch and the second switch are controlled to open and close by a control clock of a predetermined period.
摘要翻译：闪光A / D转换器包括用于产生多个参考电压的参考电压发生器，具有多个放大器的第一组放大器，每个放大器放大由参考电压发生器产生的每个参考电压之间的差值电压和输入信号和具有多个放大器的第二组放大器。第一组放大器的每个放大器是具有由多组共源共栅连接的晶体管形成的差分对的差分放大器，并且具有第一开关，用于短路构成差分对的多个晶体管的各自的共源共栅连接部分。第二组放大器的每个放大器是具有由至少两个晶体管形成的差分对的差分放大器，并且具有用于使差分对的输入单元之间的部分短路的第二开关。第一开关和第二开关通过预定周期的控制时钟被控制为打开和关闭。

10. 发明授权

US08487801B2 Analog-to-digital converter and signal processing system 失效
标题翻译：模数转换器和信号处理系统
公开(公告)号：US08487801B2
公开(公告)日：2013-07-16
申请号：US13435178
申请日：2012-03-30
申请人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
发明人： Shinichirou Etou , Yasuhide Shimizu , Kouhei Kudou , Yukitoshi Yamashita
IPC分类号： H03M1/12
CPC分类号： H03M1/1225 , H03M1/162
摘要： An analog-to-digital (A/D) converter includes: a coarse A/D converter configured to convert, when converting an analog input signal into an N-bit digital signal, the analog input signal into a high-order m-bit digital signal; a fine A/D converter configured to convert the analog input signal into a low-order n-bit (where n=N−m) digital signal based on a conversion result of the coarse A/D converter; and a track-and-hold (TH) circuit configured to sample the analog input signal, to supply a comparison voltage compared with a coarse reference voltage to the coarse A/D converter, and to supply a comparison voltage compared with a fine reference voltage based on a conversion result of the fine A/D converter to the fine A/D converter. The TH circuit is configured to share a sampling capacitor in a selective input path for the analog input signal, the coarse reference voltage, and the fine reference voltage.
摘要翻译：一种模数（A / D）转换器包括：粗A / D转换器，被配置为当将模拟输入信号转换为N位数字信号时，将模拟输入信号转换成高阶m位数字信号; 配置为基于粗略A / D转换器的转换结果将模拟输入信号转换成低阶n位（其中n = N-m）数字信号的精细A / D转换器; 以及轨道保持（TH）电路，被配置为对所述模拟输入信号进行采样，以将与粗略A / D转换器的粗略参考电压相比较的比较电压提供给与比较电压相比较的精细参考电压基于精细A / D转换器对精细A / D转换器的转换结果。 TH电路被配置为在模拟输入信号，粗参考电压和精细参考电压的选择输入路径中共享采样电容器。

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