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    • 3. 发明专利
    • Sensor signal processing device and sensor device
    • 传感器信号处理装置和传感器装置
    • JP2014150338A
    • 2014-08-21
    • JP2013016878
    • 2013-01-31
    • Denso Corp株式会社デンソー
    • TANIZAWA YUKIHIKO
    • H03M1/08H03M1/10
    • H03M1/0609G01D3/0365G01K7/16H03M1/10H03M1/462
    • PROBLEM TO BE SOLVED: To shorten a time from the start of A/D conversion of a sensor signal to the output of A/D conversion data with temperature characteristics of a physical quantity sensor canceled.SOLUTION: A sensor signal processing device includes a first A/D converter 7 having a variable offset and conversion gain and configured to A/D-convert a sensor signal of a physical quantity sensor 2, and a second A/D converter 8 configured to A/D-convert a temperature signal of a temperature sensor 3 for sensing a temperature of the physical quantity sensor 2. A temperature measurement process of instructing the A/D converter 8 to execute A/D conversion of the temperature signal, an arithmetic process of computing such an offset and conversion gain of the A/D converter 7 so as to cancel temperature characteristics of the physical quantity sensor 2 in the process of the A/D converter 7 A/D-converting the sensor signal, on the basis of an A/D conversion value of the A/D converter 8 and temperature characteristic data on the physical quantity sensor 2, and a signal conversion process of setting the computed offset and conversion gain in the A/D converter 7 to instruct the A/D converter 7 to execute A/D conversion of the sensor signal are executed concurrently.
    • 要解决的问题:缩短从传感器信号的A / D转换开始到取消物理量传感器的温度特性的A / D转换数据的输出的时间。解决方案:传感器信号处理装置包括第一 A / D转换器7,其具有可变的偏移和转换增益,并且被配置为对物理量传感器2的传感器信号进行A / D转换;以及第二A / D转换器8,被配置为对 温度传感器3,用于感测物理量传感器2的温度。指示A / D转换器8执行温度信号的A / D转换的温度测量处理,计算该温度信号的偏移和转换增益的运算处理 A / D转换器7,以在A / D转换器7的处理中消除物理量传感器2的温度特性,A / D转换器根据A / D转换器的A / D转换值, D转换器8和温度 执行物理量传感器2的特征特征数据以及在A / D转换器7中设定计算出的偏移和转换增益以指示A / D转换器7执行传感器信号的A / D转换的信号转换处理 同时。
    • 6. 发明专利
    • A/d conversion system
    • A / D转换系统
    • JPS5917721A
    • 1984-01-30
    • JP12672282
    • 1982-07-22
    • Fuji Electric Co Ltd
    • YAMAMURO KIYOSHIHERATSU SEIICHI
    • H03M1/10
    • H03M1/10
    • PURPOSE:To secure the time required for performing the converting operation plural times, by delaying the change of an analog input signal in the A/D conversion system which uses a digital operation controller and can be checked. CONSTITUTION:An A/D converter 2 is allowed to perform the converting operation plural times, and the digital value obtained each time is judged to be correct and is stored when the preceding value of upper prescribed number of bits of this digital value and the current value of that coincide with each other at least, thereby improving the reliability of data. A simple means which delays or integrates the input analog signal is added to an operational amplifier 1 to secure easily the time required for executing the converting operation plural times.
    • 目的:通过延迟使用数字操作控制器的A / D转换系统中的模拟输入信号的变化,可以多次确保执行转换操作所需的时间,并且可以进行检查。 构成:允许A / D转换器2进行多次转换操作,并且每次获得的数字值被判断为正确,并且当该数字值的上限规定位数的前一值和当前值 值至少彼此一致,从而提高数据的可靠性。 将运算放大器1添加到延迟或积分输入模拟信号的简单装置,以便容易地确保多次执行转换操作所需的时间。
    • 7. 发明专利
    • Digital-analog converter
    • 数字模拟转换器
    • JPS59127417A
    • 1984-07-23
    • JP270183
    • 1983-01-11
    • Yamatake Honeywell Co Ltd
    • MOCHIZUKI KIYOSHI
    • H03M1/10
    • H03M1/10
    • PURPOSE:To provide a feedback inspecting function for an output current and to simplify constitution by feeding back the output of a counter. CONSTITUTION:The amplitude and frequency of a digital signal from a processor CPU are varied to extract a necessary analog signal by a filter FL1. A comparator CMP compares it with the output signal of an output buffer circuit OBF and sends the result to a counter CNT. The counter CNT varies in counted value by the output based upon the comparison output, and the counted value is supplied to the CPU and also inputted to the 2nd D/A converter D/A2 to vary the amplitude and frequency, so that a necessary analog signal appears at its output. The output buffer circuit OBF controls a transistor to send the output signal to the other input terminal of the comparator CMP. Thus, a digital controller checks the actual analog current output value.
    • 目的:提供输出电流的反馈检测功能,并通过反馈计数器的输出来简化结构。 构成:改变来自处理器CPU的数字信号的幅度和频率,以通过滤波器FL1提取必要的模拟信号。 比较器CMP将其与输出缓冲器电路OBF的输出信号进行比较,并将结果发送到计数器CNT。 计数器CNT根据比较输出以计数值变化输出,并将计数值提供给CPU,并且还输入到第二D / A转换器D / A2以改变幅度和频率,使得必要的模拟 信号出现在其输出端。 输出缓冲电路OBF控制晶体管将输出信号发送到比较器CMP的另一个输入端。 因此,数字控制器检查实际的模拟电流输出值。
    • 8. 发明专利
    • System for checking analog-digital conversion
    • 检查模拟数字转换系统
    • JPS59123314A
    • 1984-07-17
    • JP23194282
    • 1982-12-29
    • Fujitsu Ltd
    • YUI MITSURUNOZAWA KUNIO
    • H03M1/10
    • H03M1/10
    • PURPOSE:To simplify the check operation by providing an analog signal level detecting section to a device converting a detected analog signal into a digital signal and transmitting the converted signal so as to check the A/D converting operation when no output of this detecting section exists. CONSTITUTION:A waveform remote transmitter 30 detecting an analog signal such as earthequake wave or the like, converting it into a digital signal and transmitting the signal to a receiver of a master station, has an A/D converting section 11, a parallel serial converting section 12, a control section 13, a level detecting section 31 and a timer section 32. The analog signal such as earthquake wave or the like is inputted to the A/D converting section and the level detecting section 31. The level detecting section 31 outputs a pulse to the timer section 32 to an input of a prescribed level or over. The timer section 32 applies an output pulse to the control section 13 during a prescribed time after an input is applied. The control section 13 switches the input of the A/D converting section 11 to a power supply 15 for check when no pulse is inputted from the timer section.
    • 目的:为了简化检查操作,将模拟信号电平检测部分提供给将检测到的模拟信号转换为数字信号的装置,并发送转换的信号,以便当该检测部分的输出不存在时检查A / D转换操作 。 构成:检测诸如三次方波等的模拟信号的波形远程发送器30将其转换为数字信号并将信号发送到主站的接收机,具有A / D转换部分11,并行串行转换 部分12,控制部分13,电平检测部分31和定时器部分32.诸如地震波等的模拟信号被输入到A / D转换部分和电平检测部分31.电平检测部分31 将定时器部分32的脉冲输出到规定级别以上的输入。 定时器部分32在施加输入之后的规定时间期间向控制部分13施加输出脉冲。 当没有从定时器部分输入脉冲时,控制部分13将A / D转换部分11的输入切换到用于检查的电源15。
    • 9. 发明专利
    • A/d converting device
    • A / D转换器件
    • JPS5972222A
    • 1984-04-24
    • JP18230482
    • 1982-10-18
    • Nec Corp
    • NISHIZAWA TATSUO
    • H03M1/18H03M1/10
    • H03M1/10
    • PURPOSE:To prevent an overflow and to perform invariably optimum A/D conversion by converting an input signal into a stepwise output, comparing it with a set level and suppressing the output level within a specific range, and then converting it into a digital signal. CONSTITUTION:The input analog signal 1 is converted into the stepwise output 6 which holds a specific value during a sampling period by a sample holding device 2. Then, the output 6 is compared by a multiplication magnification controller 3 with a previously set level to decide on magnification so that the output 7 of a multiplier 4 is between output levels + or -V. Then, the output 7 is inputted to an A/D converter 5 which inputs + or -V as full-scale inputs to obtain the output digital signal 8.
    • 目的:为了防止溢出,并通过将输入信号转换为逐步输出,将其与设定电平进行比较,并抑制特定范围内的输出电平,然后将其转换为数字信号,从而实现最佳的A / D转换。 构成:输入模拟信号1被转换成逐步输出6,其在采样期间由采样保持装置2保持特定值。然后,输出6被倍增控制器3与先前设定的电平进行比较,以决定 放大倍率使得乘法器4的输出7在输出电平+或-V之间。 然后,将输出7输入到输入+或-V作为满量程输入的A / D转换器5,以获得输出数字信号8。
    • 10. 发明专利
    • Lsi for analog-digital conversion
    • 用于模拟数字转换的LSI
    • JPS5967721A
    • 1984-04-17
    • JP17742882
    • 1982-10-08
    • Shiojiri Kogyo Kk
    • TEZUKA MUTSUTO
    • G01R15/12H03M1/10
    • H03M1/10
    • PURPOSE:To provide additionally a diode check function without cost increase by designing a low open voltage of a measuring terminal at resistor measurement, incorporating a discriminating circuit for conduction/nonconduction of diodes and making an open voltage at the resistance measurement terminal equal to a power supply voltage at its function. CONSTITUTION:Switches 40, 41 are turned on and switches 12-15 are turned off at the diode check function. A VDD potential is given to the resistance measurement terminal through the switch 40, a reference resistor 8 and a resistor 4 in this case. In connecting a diode 20 to the measuring terminal as shown in Figure, the forward voltage VF is split with resistors 6, 42 and the result is a voltage within the measuring range of OMEGAVx. When the diode 20 is placed in the opposite direction, the VDD is split with the resistors 6, 42 in place of the VF and given to the OMEGAVx. The switching 40, 41 formed in the LSI have resistance of 5,000MOMEGA-10,000MOMEGA, then insulation is out of question and the same protection circuit as the resistance measuring circuit is used.
    • 目的:通过在电阻测量时设计测量端子的低开路电压,提供额外的二极管检查功能,无需增加成本,并入二极管的导通/非导通识别电路,并使电阻测量端子处的开路电压等于功率 电源电压在其功能。 构成:在二极管检查功能下,开关40,41接通,开关12-15断开。 在这种情况下,通过开关40,参考电阻8和电阻4向电阻测量端子施加VDD电位。 在将二极管20连接到如图所示的测量端子时,正向电压VF与电阻器6,42分开,结果是在OMEGAVx的测量范围内的电压。 当二极管20处于相反方向时,VDD与电阻器6,42分开代替VF并被赋予OMEGAVx。 在LSI中形成的开关40,41具有5000MOMEGA-10,000MOMEGA的电阻,因此绝缘不成问题,并且使用与电阻测量电路相同的保护电路。