公开(公告)号：US6031404A

公开(公告)日：2000-02-29

申请号：US994073

申请日：1997-12-19

Applicant: Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

Inventor： Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

IPC: H03F1/30 ,  H03F3/217 ,  H03L5/00 ,  H03K12/00

CPC classification number: H03F1/303 ,  H03F3/217

Abstract: An analog-signal to square-wave-signal reshaping system for threshold-dependent reshaping of an analog input signal to a square wave signal; comprising an offset-inflicted reshaping circuit having a signal input adapted to be fed with the analog input signal, a reference input adapted to be fed with a reference voltage determining the reshaping threshold, and a signal output from which the square wave signal is available; an offset storage circuit connected to the signal input of the reshaping circuit and adapted to store a charging voltage corresponding to the offset voltage of the reshaping circuit, with this charging voltage being adapted to be superimposed on the analog input signal for offset compensation; a controllable switch circuit which in a first switching state takes no influence on the reshaping function of the reshaping circuit and, for the purpose of offset compensation, in a second switching state interrupts the reshaping operation of reshaping circuit and effects charging of the offset storage circuit to the charging voltage corresponding to the respective offset voltage; a detector circuit by means of which a detection signal can be generated at least approximately at those times at which the analog input signal passes a predetermined detection threshold; a delay circuit by means of which the detection signal can be delayed by a predetermined delay period; and a switch control circuit, by means of which, upon occurrence of the delayed detection signal, the switch circuit can be driven to the second switching state for a predetermined window time duration; with the window time duration lying between the adjacent edges of the square wave signal.

Abstract translation: 模拟信号到方波信号整形系统，用于将模拟输入信号阈值相关重新整形为方波信号; 包括具有适于馈送模拟输入信号的信号输入的偏移造成的重新成形电路，适于馈送用于确定重新定形阈值的参考电压的参考输入以及方波信号可用的信号输出; 偏移存储电路，连接到整形电路的信号输入端，并且适于存储对应于整形电路的偏移电压的充电电压，该充电电压适于叠加在模拟输入信号上用于偏移补偿; 在第一开关状态下的可控开关电路对整形电路的整形功能没有影响，并且为了偏移补偿的目的，在第二开关状态中断重塑电路的重新成形操作并影响偏移存储电路的充电 对应于相应偏移电压的充电电压; 检测器电路，通过该检测器电路可以至少近似地在模拟输入信号通过预定检测阈值的那些时间产生检测信号; 延迟电路，通过该延迟电路可以将检测信号延迟预定的延迟周期; 以及开关控制电路，通过该开关控制电路，在发生延迟的检测信号时，开关电路可以被驱动到第二开关状态达预定的窗口持续时间; 其中窗口持续时间位于方波信号的相邻边缘之间。

公开(公告)号：US6124739A

公开(公告)日：2000-09-26

申请号：US989442

申请日：1997-12-19

Applicant: Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

Inventor： Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

IPC: H03K5/08 ,  H03K17/00 ,  H03M1/06 ,  H03M1/12

CPC classification number: H03K5/24 ,  H03K5/08

Abstract: A monolithically integrated signal processing circuit comprising a signal series branch connected between a signal input terminal and a signal output terminal; a reference potential terminal; a series capacitor inserted in serial manner in the signal series branch and having a parasitic capacitance acting like a capacitor that is connected between a first electrode of the series capacitor directed towards the signal input terminal and the reference voltage terminal; and a first parallel capacitor connected between the first electrode of the series capacitor and the reference potential terminal; with the first parallel capacitor being constituted at least in part by the parasitic capacitance.

Abstract translation: 一种单片集成信号处理电路，包括连接在信号输入端和信号输出端之间的信号串联分支; 参考电位端子; 串联电容器串联插入信号串联分支中，并具有类似电容器的寄生电容，该寄生电容连接在指向信号输入端子的串联电容器的第一电极和参考电压端子之间; 以及连接在串联电容器的第一电极和参考电位端子之间的第一并联电容器; 其中第一并联电容器至少部分地由寄生电容构成。

公开(公告)号：US6028469A

公开(公告)日：2000-02-22

申请号：US994791

申请日：1997-12-19

Applicant: Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

Inventor： Gerhard Roither ,  Gunther Hackl ,  Uwe Fischer

IPC: H03F1/08 ,  H03F1/30 ,  G06G7/12

CPC classification number: H03F1/083 ,  H03F1/303

Abstract: An electric circuit having a switchable feedback branch switchable between a first feedback state, in which the circuit arrangement has a frequency response that is stable with respect to an oscillation tendency, and a second feedback state, in which the circuit arrangement has a frequency response that is unstable with respect to an oscillation tendency. The circuit includes a switchable frequency response compensation circuit which during the first feedback state of the feedback branch can be controlled to an ineffective state and during the second feedback state of the feedback branch can be controlled to an effective state, and in the effective state causes such compensation of the frequency response of the circuit arrangement in the second feedback state that the circuit arrangement in the second feedback state remains stable with respect to an oscillation tendency.

Abstract translation: 一种具有可切换反馈分支的电路，其可在电路装置具有相对于振荡趋势稳定的频率响应的第一反馈状态和第二反馈状态之间切换，其中电路装置具有频率响应， 相对于振荡趋势是不稳定的。 该电路包括可转换频率响应补偿电路，其在反馈支路的第一反馈状态可被控制到无效状态，并且在反馈支路的第二反馈状态期间可被控制到有效状态，并且在有效状态下 在第二反馈状态下电路装置的频率响应的这种补偿，即在第二反馈状态中的电路装置相对于振荡趋势保持稳定。