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    • 2. 发明授权
    • A/D converter
    • A / D转换器
    • US08018368B2
    • 2011-09-13
    • US12662025
    • 2010-03-29
    • Shigemitsu MurayamaYasuhide ShimizuHiroaki YatsudaKohei Kudo
    • Shigemitsu MurayamaYasuhide ShimizuHiroaki YatsudaKohei Kudo
    • H03M1/12
    • H03M1/004H03M1/0682H03M1/1215H03M1/147H03M1/365
    • An analog to digital converter includes: a reference circuit adapted to generate reference voltages; differential amplifiers; normal phase circuits each of which samples a normal phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a first input terminal of one of the differential amplifiers when the input is differential and single-ended; and reversed phase circuits each of which samples a reversed phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a second input terminal of one of the differential amplifiers when the input is differential and which samples a ground level as a reference voltage of the reference circuit and supplies the reference voltage and comparison voltage to the second input terminal of the differential amplifier when the input is single-ended.
    • 模数转换器包括:适于产生参考电压的参考电路; 差分放大器; 每个正常相电路对正相模拟输入信号进行采样,并将通过与参考电路产生的参考电压进行比较获得的比较电压传送到差分放大器之一的第一输入端,当输入为差分和单 接受 每个反相电路对反相模拟输入信号进行采样,并将通过与基准电路产生的参考电压进行比较而获得的比较电压传送到差分放大器之一的第二输入端,当输入为差分时, 其将接地电平作为参考电路的参考电压进行采样,并且当输入为单端时将参考电压和比较电压提供给差分放大器的第二输入端。
    • 3. 发明申请
    • A/D Converter
    • A / D转换器
    • US20100271244A1
    • 2010-10-28
    • US12662025
    • 2010-03-29
    • Shigemitsu MurayamaYasuhide ShimizuHiroaki YatsudaKohei Kudo
    • Shigemitsu MurayamaYasuhide ShimizuHiroaki YatsudaKohei Kudo
    • H03M1/12H03M3/00
    • H03M1/004H03M1/0682H03M1/1215H03M1/147H03M1/365
    • An analog to digital converter includes: a reference circuit adapted to generate reference voltages; differential amplifiers; normal phase circuits each of which samples a normal phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a first input terminal of one of the differential amplifiers when the input is differential and single-ended; and reversed phase circuits each of which samples a reversed phase analog input signal and transfers a comparison voltage, obtained by comparison with a reference voltage generated by the reference circuit, to a second input terminal of one of the differential amplifiers when the input is differential and which samples a ground level as a reference voltage of the reference circuit and supplies the reference voltage and comparison voltage to the second input terminal of the differential amplifier when the input is single-ended.
    • 模数转换器包括:适于产生参考电压的参考电路; 差分放大器; 每个正常相电路对正相模拟输入信号进行采样,并将通过与参考电路产生的参考电压进行比较获得的比较电压传送到差分放大器之一的第一输入端,当输入为差分和单 接受 每个反相电路对反相模拟输入信号进行采样,并将通过与基准电路产生的参考电压进行比较而获得的比较电压传送到差分放大器之一的第二输入端,当输入为差分时, 其将接地电平作为参考电路的参考电压进行采样,并且当输入为单端时将参考电压和比较电压提供给差分放大器的第二输入端。
    • 9. 发明授权
    • Subranging converter for converting an analog signal into an N-bit digital signal
    • 用于将模拟信号转换成N位数字信号的Subranging转换器
    • US07564395B2
    • 2009-07-21
    • US11936428
    • 2007-11-07
    • Shigemitsu MurayamaKohei KudoYasuhide Shimizu
    • Shigemitsu MurayamaKohei KudoYasuhide Shimizu
    • H03M1/12
    • H03M1/365
    • A subranging analog-to-digital converter is disclosed. The converter includes: a divided voltage generation circuit that equally divides a range of a predetermined voltage, and generates 2m+1 divided voltages; a higher-order conversion circuit that generates a signal for higher-order m bits of the digital signal by comparing the analog signal with the 2m−1 or less of the 2m+1 divided voltages; a switch circuit that selects at least two of the 2m+1 divided voltages based on information provided by the higher-order conversion circuit; a lower-order conversion circuit that generates a signal for lower-order n bits (n=N−m) of the digital signal by comparing the analog signal with the divided voltages being a selection result of the switch circuit; and an encoder that generates the digital signal based on the signal provided by the higher-order conversion circuit and the signal provided by the lower-order conversion circuit.
    • 公开了一种子范围模数转换器。 转换器包括:分压电压产生电路,其等分预定电压的范围,并产生2m + 1分压; 通过将模拟信号与2m + 1分压的2m-1或更小来比较,生成数字信号的高位m位的信号的高阶转换电路; 开关电路,其基于由所述高阶转换电路提供的信息选择所述2m + 1分压中的至少两个电压; 通过将模拟信号与作为开关电路的选择结果的分压电路进行比较来生成数字信号的低阶n位(n = N-m)的信号的低阶转换电路; 以及基于由高阶转换电路提供的信号和由低阶转换电路提供的信号产生数字信号的编码器。
    • 10. 发明申请
    • ANALOG-TO-DIGITAL CONVERTER
    • 模拟数字转换器
    • US20080180296A1
    • 2008-07-31
    • US11936428
    • 2007-11-07
    • Shigemitsu MurayamaKohei KudoYasuhide Shimizu
    • Shigemitsu MurayamaKohei KudoYasuhide Shimizu
    • H03M1/12
    • H03M1/365
    • A subranging analog-to-digital converter is disclosed. The converter includes: a divided voltage generation circuit that equally divides a range of a predetermined voltage, and generates 2m+1 divided voltages; a higher-order conversion circuit that generates a signal for higher-order m bits of the digital signal by comparing the analog signal with the 2m−1 or less of the 2m+1 divided voltages; a switch circuit that selects at least two of the 2m+1 divided voltages based on information provided by the higher-order conversion circuit; a lower-order conversion circuit that generates a signal for lower-order n bits (n=N−m) of the digital signal by comparing the analog signal with the divided voltages being a selection result of the switch circuit; and an encoder that generates the digital signal based on the signal provided by the higher-order conversion circuit and the signal provided by the lower-order conversion circuit.
    • 公开了一种子范围模数转换器。 转换器包括:分压电压产生电路,其等分预定电压的范围,并产生2×1 + 1分压; 一个高阶转换电路,通过将模拟信号与2μs/ 2以上的2×2以下的比较生成用于数字信号的高位m位的信号 > +1分压; 开关电路,其基于由所述高阶转换电路提供的信息选择所述2 + 1分频电压中的至少两个; 通过将模拟信号与作为开关电路的选择结果的分压电路进行比较来生成数字信号的低阶n位(n = N-m)的信号的低阶转换电路; 以及基于由高阶转换电路提供的信号和由低阶转换电路提供的信号产生数字信号的编码器。