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    • 1. 发明申请
    • DATA PROCESSING DEVICE AND DATA PROCESSING SYSTEM
    • 数据处理设备和数据处理系统
    • US20120062403A1
    • 2012-03-15
    • US13279076
    • 2011-10-21
    • Yoshimi ISOKakeru KimuraTadashi MatsushimaYuji Shimizu
    • Yoshimi ISOKakeru KimuraTadashi MatsushimaYuji Shimizu
    • H03M1/00
    • H03M1/1009H03M1/1028H03M1/12H03M1/183
    • In AD conversion of a voltage, data continuity is ensured between the results of conversion after amplification and of direct conversion without amplification. In AD conversion operation, an analog signal output from a DA converter circuit is directly converted by an AD converter circuit, and the analog signal is converted after amplification with an expected gain of 2n. Based on resultant data, a gain of an amplifier circuit and an offset thereof are calculated. An analog signal to be enhanced in bit precision is amplified by the amplifier circuit and converted by the AD converter circuit, the offset is subtracted from the resultant conversion, and the result is multiplied by a ratio of the expected gain to the calculated gain to cancel gain error. Based on data with gain error canceled, acquisition of bit-extended conversion result data is performed to ensure continuity between data having different degrees of bit precision.
    • 在电压的AD转换中,确保放大后的转换结果与没有放大的直接转换之间的数据连续性。 在AD转换动作中,由AD转换电路输出的模拟信号由AD转换电路直接转换,模拟信号经过放大后以2n的预期增益转换。 基于所得数据,计算放大器电路的增益及其偏移。 要增强位精度的模拟信号由放大器电路放大并由AD转换器电路转换,从所得转换中减去偏移量,并将结果乘以预期增益与计算增益的比值以取消 增益误差。 基于取消增益误差的数据,执行比特扩展转换结果数据的采集,以确保具有不同位精度的数据之间的连续性。
    • 2. 发明申请
    • SEMICONDUCTOR PRESSURE SENSOR AND DATA PROCESSING DEVICE
    • 半导体压力传感器和数据处理装置
    • US20110166804A1
    • 2011-07-07
    • US13046561
    • 2011-03-11
    • Tadashi MatsushimaMasaru SugaiChung Wen HungYuji Shimizu
    • Tadashi MatsushimaMasaru SugaiChung Wen HungYuji Shimizu
    • G06F19/00
    • G01L9/04G01L1/2262
    • For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N pieces of internal resistors RI connected in series between both ends of RE, and (N+1) pieces of switches selecting one of voltages of respective nodes of the serial resistors and outputs the same as a signal. RE has a high absolute value precision of, e.g., several ten ohms to several hundred ohms, and RI has a high relative value precision of, e.g., several kilo-ohms. Therefore, an offset adjustment range is decided at a high absolute value precision mainly by RE, and with regard to the arrangement resolution, a high precision can be obtained along with the relative value precision of the RI.
    • 例如,为了调整压力传感器的偏移量,设置有外部电阻器RE和内部电阻电路,其连接到RE的两端并形成在诸如处理器的半导体芯片中。 内部电阻电路包括在RE的两端串联连接的N个内部电阻器RI和选择串联电阻器的各个节点的电压中的一个的(N + 1)个开关,并输出与信号相同的N个。 RE具有例如几十欧姆至几百欧姆的高绝对值精度,并且RI具有例如几千欧姆的高相对值精度。 因此,偏移调整范围主要由RE决定为高绝对值精度,关于排列分辨率,可以与RI的相对值精度一起获得高精度。
    • 3. 发明申请
    • DATA PROCESSING DEVICE AND DATA PROCESSING SYSTEM
    • 数据处理设备和数据处理系统
    • US20100245140A1
    • 2010-09-30
    • US12730978
    • 2010-03-24
    • Yoshimi ISOKakeru KimuraTadashi MatsushimaYuji Shimizu
    • Yoshimi ISOKakeru KimuraTadashi MatsushimaYuji Shimizu
    • H03M1/10
    • H03M1/1009H03M1/1028H03M1/12H03M1/183
    • In AD conversion of a voltage under measurement, data continuity is ensured between the result of conversion after amplification by using an amplifier circuit and the result of direct conversion without using the amplifier circuit. In AD conversion operation using a DA converter circuit, an amplifier circuit, and an AD converter circuit under the direction of a control circuit, an analog signal output from the DA converter circuit is directly converted by the AD converter circuit, and also the analog signal is converted therein after amplified by the amplifier circuit with an expected gain of 2n (“n” represents a positive integer). Based on resultant data thus obtained, a gain of the amplifier circuit and an offset thereof are calculated. An analog signal under measurement to be enhanced in bit precision is subjected to amplification by the amplifier circuit and conversion by the AD converter circuit, the offset calculated as mentioned above is subtracted from the result of the conversion, and the result of the subtraction thus performed is multiplied by a ratio of the expected gain to the gain calculated as mentioned above so as to cancel a gain error. Then, based on data with the gain error canceled, acquisition of bit-extended conversion result data is performed to ensure continuity between data having different degrees of bit precision.
    • 在测量电压的AD转换中,通过使用放大器电路在放大后的转换结果与不使用放大器电路的直接转换结果之间确保数据连续性。 在AD转换电路的AD转换动作,放大电路和AD转换电路的控制电路的指导下,从DA转换电路输出的模拟信号由AD转换电路直接转换,模拟信号 在放大器电路放大后以预期的增益为2n转换(“n”表示正整数)。 基于这样获得的结果数据,计算放大器电路的增益及其偏移。 通过放大电路进行放大电路的放大和AD转换电路的转换,将由比特精度提高的模拟信号进行放大,从转换结果中减去如上所述计算出的偏移量,进行相减的结果 乘以预期增益与如上所述计算的增益的比率,以消除增益误差。 然后,基于取消增益误差的数据,执行比特扩展转换结果数据的采集,以确保具有不同位精度的数据之间的连续性。
    • 6. 发明授权
    • Data processing device and data processing system
    • 数据处理装置和数据处理系统
    • US08077065B2
    • 2011-12-13
    • US12730978
    • 2010-03-24
    • Yoshimi IsoKakeru KimuraTadashi MatsushimaYuji Shimizu
    • Yoshimi IsoKakeru KimuraTadashi MatsushimaYuji Shimizu
    • H03M1/00
    • H03M1/1009H03M1/1028H03M1/12H03M1/183
    • In AD conversion of a voltage under measurement, data continuity is ensured between the result of conversion after amplification by using an amplifier circuit and the result of direct conversion without using the amplifier circuit. In AD conversion operation using a DA converter circuit, an amplifier circuit, and an AD converter circuit under the direction of a control circuit, an analog signal output from the DA converter circuit is directly converted by the AD converter circuit, and also the analog signal is converted therein after amplified by the amplifier circuit with an expected gain of 2n (“n” represents a positive integer). Based on resultant data thus obtained, a gain of the amplifier circuit and an offset thereof are calculated. An analog signal under measurement to be enhanced in bit precision is subjected to amplification by the amplifier circuit and conversion by the AD converter circuit, the offset calculated as mentioned above is subtracted from the result of the conversion, and the result of the subtraction thus performed is multiplied by a ratio of the expected gain to the gain calculated as mentioned above so as to cancel a gain error. Then, based on data with the gain error canceled, acquisition of bit-extended conversion result data is performed to ensure continuity between data having different degrees of bit precision.
    • 在测量电压的AD转换中,通过使用放大器电路在放大后的转换结果与不使用放大器电路的直接转换结果之间确保数据连续性。 在AD转换电路的AD转换动作,放大电路和AD转换电路的控制电路的指导下,从DA转换电路输出的模拟信号由AD转换电路直接转换,模拟信号 在放大器电路放大后以预期的增益为2n转换(“n”表示正整数)。 基于这样获得的结果数据,计算放大器电路的增益及其偏移。 通过放大电路进行放大电路的放大和AD转换电路的转换,将由比特精度提高的模拟信号进行放大,从转换结果中减去如上所述计算出的偏移量,进行相减的结果 乘以预期增益与如上所述计算的增益的比率,以消除增益误差。 然后,基于取消增益误差的数据,执行比特扩展转换结果数据的采集,以确保具有不同位精度的数据之间的连续性。
    • 9. 发明申请
    • SEMICONDUCTOR PRESSURE SENSOR AND DATA PROCESSING DEVICE
    • 半导体压力传感器和数据处理装置
    • US20090165564A1
    • 2009-07-02
    • US12343236
    • 2008-12-23
    • Tadashi MATSUSHIMAMasaru SUGAIChung Wen HungYuji SHIMIZU
    • Tadashi MATSUSHIMAMasaru SUGAIChung Wen HungYuji SHIMIZU
    • G01L9/00
    • G01L9/04G01L1/2262
    • For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N pieces of internal resistors RI connected in series between both ends of RE, and (N+1) pieces of switches selecting one of voltages of respective nodes of the serial resistors and outputs the same as a signal. RE has a high absolute value precision of, e.g., several ten ohms to several hundred ohms, and RI has a high relative value precision of, e.g., several kilo-ohms. Therefore, an offset adjustment range is decided at a high absolute value precision mainly by RE, and with regard to the arrangement resolution, a high precision can be obtained along with the relative value precision of the RI.
    • 例如,为了调整压力传感器的偏移量,设置有外部电阻器RE和内部电阻电路,其连接到RE的两端并形成在诸如处理器的半导体芯片中。 内部电阻电路包括在RE的两端串联连接的N个内部电阻器RI和选择串联电阻器的各个节点的电压中的一个的(N + 1)个开关,并输出与信号相同的N个。 RE具有例如几十欧姆至几百欧姆的高绝对值精度,并且RI具有例如几千欧姆的高相对值精度。 因此,偏移调整范围主要由RE决定为高绝对值精度,关于排列分辨率,可以与RI的相对值精度一起获得高精度。