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1. 发明授权

US07948415B2 DA converter, AD converter, and semiconductor device 有权
标题翻译： DA转换器，AD转换器和半导体器件
公开(公告)号：US07948415B2
公开(公告)日：2011-05-24
申请号：US12207283
申请日：2008-09-09
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/1014 , H03M1/66 , H03M1/742 , H04N5/378
摘要： A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
摘要翻译： DA转换器包括用于根据数字输入信号值获得模拟输出信号的第一DA转换部分和用于根据数字增益控制输入信号值获得模拟增益控制输出信号的第二DA转换部分。在DA转换器中，由第一DA转换部生成的模拟输出信号的增益控制基于由第二DA转换部生成的增益控制输出信号进行。

2. 发明授权

US07936294B2 Digital-to-analog converter, analog-to-digital converter, and semiconductor device 有权
标题翻译：数模转换器，模拟 - 数字转换器和半导体器件
公开(公告)号：US07936294B2
公开(公告)日：2011-05-03
申请号：US12426731
申请日：2009-04-20
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
摘要翻译： DA转换装置包括以下元件。较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。恒定电流源选择控制器包括具有缩放器的低位控制器，该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元，位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出，并且使用移位输出来选择较高位电流源单元。添加并输出所选择的电流源单元的恒定电流输出，从而获得与数字输入信号相对应的输出电流。

3. 发明授权

US07522082B2 Digital-to-analog converter, analog-to-digital converter, and semiconductor device 失效
标题翻译：数模转换器，模拟 - 数字转换器和半导体器件
公开(公告)号：US07522082B2
公开(公告)日：2009-04-21
申请号：US11974266
申请日：2007-10-12
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
摘要翻译： DA转换装置包括以下元件。较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。恒定电流源选择控制器包括具有缩放器的低位控制器，该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元，位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出，并且使用移位输出来选择较高位电流源单元。添加并输出所选择的电流源单元的恒定电流输出，从而获得与数字输入信号相对应的输出电流。

4. 发明申请

US20080042048A1 Digital-to-analog converter, analog-to-digital converter, and semiconductor device 失效
公开(公告)号：US20080042048A1
公开(公告)日：2008-02-21
申请号：US11974266
申请日：2007-10-12
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H01L27/00 , H03M1/12 , H03M1/66
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.

5. 发明授权

US08339300B2 Digital-to-analog converter, analog-to-digital converter, and semiconductor device 失效
标题翻译：数模转换器，模拟 - 数字转换器和半导体器件
公开(公告)号：US08339300B2
公开(公告)日：2012-12-25
申请号：US13098206
申请日：2011-04-29
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
摘要翻译： DA转换装置包括以下元件。较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。恒定电流源选择控制器包括具有缩放器的低位控制器，该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元，位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出，并且使用移位输出来选择较高位电流源单元。添加并输出所选择的电流源单元的恒定电流输出，从而获得与数字输入信号相对应的输出电流。

6. 发明授权

US07423570B2 DA converter, AD converter, and semiconductor device 有权
标题翻译： DA转换器，AD转换器和半导体器件
公开(公告)号：US07423570B2
公开(公告)日：2008-09-09
申请号：US11506989
申请日：2006-08-18
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/1014 , H03M1/66 , H03M1/742 , H04N5/378
摘要： A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
摘要翻译： DA转换器包括用于根据数字输入信号值获得模拟输出信号的第一DA转换部分和用于根据数字增益控制输入信号值获得模拟增益控制输出信号的第二DA转换部分。在DA转换器中，由第一DA转换部生成的模拟输出信号的增益控制基于由第二DA转换部生成的增益控制输出信号进行。

7. 发明授权

US07324033B2 Digital-to-analog converter, analog-to-digital converter, and semiconductor device 失效
标题翻译：数模转换器，模拟 - 数字转换器和半导体器件
公开(公告)号：US07324033B2
公开(公告)日：2008-01-29
申请号：US11526512
申请日：2006-09-25
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
摘要翻译： DA转换装置包括以下元件。较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。恒定电流源选择控制器包括具有缩放器的低位控制器，该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元，位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出，并且使用移位输出来选择较高位电流源单元。添加并输出所选择的电流源单元的恒定电流输出，从而获得与数字输入信号相对应的输出电流。

8. 发明申请

US20090009641A1 DA CONVERTER, AD CONVERTER, AND SEMICONDUCTOR DEVICE 有权
标题翻译： DA转换器，AD转换器和半导体器件
公开(公告)号：US20090009641A1
公开(公告)日：2009-01-08
申请号：US12207283
申请日：2008-09-09
申请人： GO ASAYAMA , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： GO ASAYAMA , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H04N5/335
CPC分类号： H03M1/1014 , H03M1/66 , H03M1/742 , H04N5/378
摘要： A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
摘要翻译： DA转换器包括用于根据数字输入信号值获得模拟输出信号的第一DA转换部分和用于根据数字增益控制输入信号值获得模拟增益控制输出信号的第二DA转换部分。在DA转换器中，由第一DA转换部生成的模拟输出信号的增益控制基于由第二DA转换部生成的增益控制输出信号进行。

9. 发明授权

US08674865B2 DA converter, AD converter, and semiconductor device 有权
标题翻译： DA转换器，AD转换器和半导体器件
公开(公告)号：US08674865B2
公开(公告)日：2014-03-18
申请号：US13113792
申请日：2011-05-23
申请人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go Asayama , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66
CPC分类号： H03M1/1014 , H03M1/66 , H03M1/742 , H04N5/378
摘要： A DA converter includes a first DA conversion section for obtaining an analog output signal in accordance with a digital input signal value, and a second DA conversion section for obtaining an analog gain control output signal in accordance with a digital gain control input signal value. In the DA converter, the gain control of the analog output signal generated by the first DA conversion section is performed on the basis of the gain control output signal generated by the second DA conversion section.
摘要翻译： DA转换器包括用于根据数字输入信号值获得模拟输出信号的第一DA转换部分和用于根据数字增益控制输入信号值获得模拟增益控制输出信号的第二DA转换部分。在DA转换器中，由第一DA转换部生成的模拟输出信号的增益控制基于由第二DA转换部生成的增益控制输出信号进行。

10. 发明申请

US20090201187A1 DIGITAL-TO-ANALOG CONVERTER, ANALOG-TO-DIGITAL CONVERTER, AND SEMICONDUCTOR DEVICE 有权
标题翻译：数字到模拟转换器，模拟数字转换器和半导体器件
公开(公告)号：US20090201187A1
公开(公告)日：2009-08-13
申请号：US12426731
申请日：2009-04-20
申请人： Go ASAYAMA , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
发明人： Go ASAYAMA , Noriyuki Fukushima , Yoshikazu Nitta , Yoshinori Muramatsu , Kiyotaka Amano
IPC分类号： H03M1/66 , H03M1/12
CPC分类号： H03M1/66 , H03M1/0863 , H03M1/123 , H03M1/34 , H03M1/56 , H03M1/664 , H03M1/687 , H03M1/745 , H03M1/747
摘要： A DA conversion device includes the following elements. A higher-bit current source cell portion includes uniformly weighted higher-bit current source cells to generate an identical constant current. A lower-bit current source cell portion includes a lower-bit current source cells that are weighted to generate 1/two-to-the-power-of-certain-numbers constant currents. A constant current source selection controller includes a lower-bit controller having a scaler that uses clocks scaled down to 1/two-to-the-power-of-certain-numbers to select the lower-bit current source cells, and a higher-bit controller having shift registers and using a signal indicating a carry bit or a borrow bit used in the lower-bit controller to sequentially activate shift outputs of the shift registers, and uses the shift outputs to select the higher-bit current source cells. Constant current outputs of the selected current source cells are added and output so that an output current corresponding to the digital input signal is obtained.
摘要翻译： DA转换装置包括以下元件。较高位的电流源单元部分包括均匀加权的较高位电流源单元以产生相同的恒定电流。低位电流源单元部分包括被加权以产生特定数目的恒定电流的2/2的功率的低位电流源单元。恒定电流源选择控制器包括具有缩放器的低位控制器，该定标器使用按比例缩小到1/2到特定数目的功率的时钟来选择低位电流源单元，位控制器具有移位寄存器并且使用指示在低位控制器中使用的进位位或借位位的信号来顺序地激活移位寄存器的移位输出，并且使用移位输出来选择较高位电流源单元。添加并输出所选择的电流源单元的恒定电流输出，从而获得与数字输入信号相对应的输出电流。

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