公开(公告)号：US5055845A

公开(公告)日：1991-10-08

申请号：US406585

申请日：1989-09-13

申请人： Frank Ridkosil

发明人： Frank Ridkosil

IPC分类号： G11C27/00 ,  H03K5/1532 ,  H03M1/12 ,  H04K1/00 ,  H04L7/027 ,  H04L27/06

CPC分类号： H03K5/1532 ,  H03M1/1275 ,  H04K1/00 ,  H04L27/06 ,  H04L7/027

摘要： A circuit and method for representing in digital form information about the time and amplitude characteristic of a time-varying input signal. The time-varying input signal is delayed and the magnitudes of the time-varying input signal and its delayed version are compared to produce a digital signal representing the time characteristic of the input signal in the form of a transition in a digital output signal each time the magnitudes of the compared signals have a predetermined relationship. The predetermined relationship may be a condition of approximate equality or when the magnitude of the larger of the compared signals becomes less than the magnitude of the smaller of the compared signals. The invention also includes a circuit for outputting a digital representation of the amplitude of the time-varying input signal for each transition of said digital output signal. The circuits thus provide separate digital representations of the time and amplitude of each peak and valley of an analog or other time-varying input signal.

摘要翻译： 用于以数字方式表示关于时变输入信号的时间和幅度特性的信息的电路和方法。 时变输入信号被延迟并且时变输入信号及其延迟版本的幅度被比较以产生表示每次数字输出信号中的转变形式的输入信号的时间特性的数字信号 比较信号的幅度具有预定的关系。 预定关系可以是近似相等的条件，或者当比较的信号的较大者的大小变得小于比较的信号的较小者的大小时。 本发明还包括用于输出对于所述数字输出信号的每个转换的时变输入信号的振幅的数字表示的电路。 因此，电路提供模拟或其他时变输入信号的每个峰谷的时间和幅度的分开的数字表示。

公开(公告)号：US5231397A

公开(公告)日：1993-07-27

申请号：US770922

申请日：1991-10-04

申请人： Frank Ridkosil

发明人： Frank Ridkosil

IPC分类号： H03K5/1532 ,  H03M1/12 ,  H04K1/00 ,  H04L7/027 ,  H04L27/06

CPC分类号： H04L7/027 ,  H03K5/1532 ,  H03M1/1275 ,  H04K1/00 ,  H04L27/06

摘要： A circuit and method for representing in digital form information about the time and amplitude characteristic of a time-varying input signal. The time-varying input signal is delayed and the magnitudes of the time-varying input signal and its delayed version are compared to produce a digital signal representing the time characteristic of the input signal in the form of a transition in a digital output signal each time the magnitudes of the compared signals have a predetermined relationship. The predetermined relationship may be a condition of approximate equality or when the magnitude of the larger of the compared signals becomes less than the magnitude of the smaller of the compared signals. The invention also includes a circuit for outputting a digital representation of the amplitude of the time-varying input signal for each transition of said digital output signal. The disclosed circuits thus provide separate digital representations of the time and amplitude of each peak and valley of an analog or other time-varying input signal. The invention also includes an application of the analog-to-digital converter in a pitch tracking circuit.

摘要翻译： 用于以数字方式表示关于时变输入信号的时间和幅度特性的信息的电路和方法。 时变输入信号被延迟并且时变输入信号及其延迟版本的幅度被比较以产生表示每次数字输出信号中的转变形式的输入信号的时间特性的数字信号 比较信号的幅度具有预定的关系。 预定关系可以是近似相等的条件，或者当比较的信号的较大者的大小变得小于比较的信号的较小者的大小时。 本发明还包括用于输出对于所述数字输出信号的每个转换的时变输入信号的振幅的数字表示的电路。 所公开的电路因此提供模拟或其他时变输入信号的每个峰谷的时间和幅度的分开的数字表示。 本发明还包括模数转换器在音调跟踪电路中的应用。