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    • 1. 发明授权
    • Capacitance measuring circuit
    • 电容测量电路
    • US08054089B2
    • 2011-11-08
    • US11915183
    • 2006-05-24
    • Johann HauerStefan MoedlMarcus Hartmann
    • Johann HauerStefan MoedlMarcus Hartmann
    • G01R31/08H03M3/00
    • H03M3/496G01R27/2605H03M3/43H03M3/456
    • The present invention is based on the finding that a capacitance can be measured precisely and efficiently when, in a delta-sigma modulator having an operational amplifier, a first capacitor connectable to an input of the operational amplifier, and a second capacitor in a feedback branch of the operational amplifier, a reference signal source is connectable to the first capacitor, wherein the first or second capacitor may represent a capacitance to be measured. Due to the fact that, in contrast to what is conventional, no input quantity is measured and digitalized at the input of the delta-sigma modulator, but instead a defined reference signal source is coupled at the input and a device of the delta-sigma modulator itself represents the measuring quantity, an extremely compact circuit is provided allowing capacitances to be measured quickly and reliably, the measuring result being additionally made available in a digital form.
    • 本发明基于以下发现:当在具有运算放大器的Δ-Σ调制器中可连接到运算放大器的输入端的第一电容器和反馈支路中的第二电容器时,可以精确地和有效地测量电容 所述运算放大器的参考信号源可连接到所述第一电容器,其中所述第一或第二电容器可表示要测量的电容。 由于与常规技术相比,在Δ-Σ调制器的输入端没有测量和数字化输入量,而是将定义的参考信号源耦合在输入端和delta-sigma的器件 调制器本身表示测量量,提供了一种非常紧凑的电路,允许电容快速可靠地测量,测量结果另外以数字形式提供。
    • 2. 发明申请
    • Capacitance Measuring Circuit
    • 电容测量电路
    • US20080191713A1
    • 2008-08-14
    • US11915183
    • 2006-05-24
    • Johann HauerStefan MoedlMarcus Hartmann
    • Johann HauerStefan MoedlMarcus Hartmann
    • G01R27/26
    • H03M3/496G01R27/2605H03M3/43H03M3/456
    • The present invention is based on the finding that a capacitance can be measured precisely and efficiently when, in a delta-sigma modulator having an operational amplifier, a first capacitor connectable to an input of the operational amplifier, and a second capacitor in a feedback branch of the operational amplifier, a reference signal source is connectable to the first capacitor, wherein the first or second capacitor may represent a capacitance to be measured. Due to the fact that, in contrast to what is conventional, no input quantity is measured and digitalized at the input of the delta-sigma modulator, but instead a defined reference signal source is coupled at the input and a device of the delta-sigma modulator itself represents the measuring quantity, an extremely compact circuit is provided allowing capacitances to be measured quickly and reliably, the measuring result being additionally made available in a digital form.
    • 本发明基于以下发现:当在具有运算放大器的Δ-Σ调制器中可连接到运算放大器的输入端的第一电容器和反馈支路中的第二电容器时,可以精确地和有效地测量电容 所述运算放大器的参考信号源可连接到所述第一电容器,其中所述第一或第二电容器可表示要测量的电容。 由于与常规技术相比,在Δ-Σ调制器的输入端没有测量和数字化输入量,而是将定义的参考信号源耦合在输入端和delta-sigma的器件 调制器本身表示测量量,提供了一种非常紧凑的电路,允许电容快速可靠地测量,测量结果另外以数字形式提供。
    • 3. 发明授权
    • Method for setting the trigger power of transmitter diodes
    • 用于设置发射二极管触发功率的方法
    • US06466041B1
    • 2002-10-15
    • US09672291
    • 2000-09-27
    • Jens EgererJohann HauerMichael ReinholdRainer Rodenheber
    • Jens EgererJohann HauerMichael ReinholdRainer Rodenheber
    • G01R31308
    • H04B10/11H04L25/26
    • A method for setting the trigger power of transmitter diodes that transmit data via optical paths allows the transmission power to be adjusted and adapted to the communication distance. The trigger power is determined for the present communication distance on the basis of a test signal before data transmission begins. A circuit arrangement implementing the method includes a driver circuit with a switching device that switches a circuit junction point selectively to a supply voltage or to a constant reference voltage, a voltage-controlled resistor which delivers the driver current and is controlled from the circuit junction point, and a voltage-controlled measuring resistor which delivers a measured current with a fixed relationship to the driver current and is controlled from the circuit junction point. Since the set trigger power can be reduced, the power consumption for data transmission can be reduced considerably.
    • 用于设置通过光路传输数据的发射器二极管的触发功率的方法允许调整发射功率并适应通信距离。 基于数据传输开始前的测试信号,确定当前通信距离的触发功率。 实现该方法的电路装置包括具有切换装置的驱动器电路,该开关装置将电路连接点选择性地切换到电源电压或恒定的参考电压;压控电阻器,其传递驱动器电流并且从电路连接点 以及电压测量电阻器,其以与驱动器电流固定的关系传送测量电流,并从电路连接点进行控制。 由于可以减小设定的触发功率,因此可以显着降低用于数据传输的功耗。
    • 4. 发明授权
    • Hybrid analog-to-digital converter, an image sensor and a method for providing a plurality of digital signals
    • 混合模拟 - 数字转换器,图像传感器和用于提供多个数字信号的方法
    • US08492697B2
    • 2013-07-23
    • US13196601
    • 2011-08-02
    • Harald NeubauerJohann Hauer
    • Harald NeubauerJohann Hauer
    • H03M1/38H03M1/12H01L27/146
    • H03M1/145H03M1/123H03M1/466H03M1/56H03M1/804
    • A hybrid analog-to-digital converter includes a plurality of converting circuits. Each converting circuit is configured to provide a digital signal based on an analog input signal by performing a successive approximation conversion to obtain, as a result of the successive approximation conversion, a first number of bits of the digital signal, and by subsequently performing a slope conversion based on a common variable reference voltage to obtain a second number of bits of the digital signal, the second number of bits corresponding to a residual between the analog input signal and the result of the successive approximation conversion. The hybrid analog-to-digital converter further includes a common variable reference voltage provider configured to provide to each converting circuit of the plurality of converting circuits the common variable reference voltage.
    • 混合模数转换器包括多个转换电路。 每个转换电路被配置为通过执行逐次逼近转换来提供基于模拟输入信号的数字信号,作为逐次逼近转换的结果,以获得数字信号的第一位数,并且随后执行斜率 基于公共可变参考电压进行转换以获得数字信号的第二位数,第二位数对应于模拟输入信号与逐次逼近转换结果之间的残差。 混合模数转换器还包括公共可变参考电压提供器,其被配置为向多个转换电路的每个转换电路提供公共可变参考电压。
    • 5. 发明申请
    • HYBRID ANALOG-TO-DIGITAL CONVERTER, AN IMAGE SENSOR AND A METHOD FOR PROVIDING A PLURALITY OF DIGITAL SIGNALS
    • 混合模拟数字转换器,图像传感器和提供数字信号多项式的方法
    • US20120025062A1
    • 2012-02-02
    • US13196601
    • 2011-08-02
    • Harald NeubauerJohann Hauer
    • Harald NeubauerJohann Hauer
    • H03M1/38H01L27/146H03M1/12
    • H03M1/145H03M1/123H03M1/466H03M1/56H03M1/804
    • A hybrid analog-to-digital converter includes a plurality of converting circuits. Each converting circuit is configured to provide a digital signal based on an analog input signal by performing a successive approximation conversion to obtain, as a result of the successive approximation conversion, a first number of bits of the digital signal, and by subsequently performing a slope conversion based on a common variable reference voltage to obtain a second number of bits of the digital signal, the second number of bits corresponding to a residual between the analog input signal and the result of the successive approximation conversion. The hybrid analog-to-digital converter further includes a common variable reference voltage provider configured to provide to each converting circuit of the plurality of converting circuits the common variable reference voltage.
    • 混合模数转换器包括多个转换电路。 每个转换电路被配置为通过执行逐次逼近转换来提供基于模拟输入信号的数字信号,作为逐次逼近转换的结果,以获得数字信号的第一位数,并且随后执行斜率 基于公共可变参考电压进行转换以获得数字信号的第二位数,第二位数对应于模拟输入信号与逐次逼近转换结果之间的残差。 混合模数转换器还包括公共可变参考电压提供器,其被配置为向多个转换电路的每个转换电路提供公共可变参考电压。