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1. 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。

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。

4. 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。

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