公开(公告)号：US08321168B2

公开(公告)日：2012-11-27

申请号：US12521900

申请日：2007-12-14

申请人： Sven-Ake Eriksson

发明人： Sven-Ake Eriksson

IPC分类号： G01C17/38

CPC分类号： G01C21/16 ,  G01C19/00

摘要： A method for compensating the drift of an element for position measurement mounted on an object, including at least one gyro for measuring rotation of the object about an axis and at least one accelerometer for measuring two mutually perpendicular components of the acceleration of gravity as a consequence of the orientation of the object relative to the acceleration of gravity along two mutually perpendicular directions, which together correspond to the rotation of the object about the axis. The output signal from the accelerometer and the output signal from the gyro are low-pass filtered. These two signals are compared and the output signal from the gyro is compensated using an output signal from the accelerometer so that the deviation of the output signal of the gyro because of drift is decreased or eliminated. The thus produced, compensated signal constitutes an output signal from the gyro.

摘要翻译： 一种用于补偿安装在物体上的用于位置测量的元件的漂移的方法，包括用于测量物体围绕轴的旋转的至少一个陀螺仪和用于测量重力加速度的两个相互垂直的分量的至少一个加速度计 相对于沿着两个相互垂直的方向的重力加速度的物体的取向，其一起对应于物体围绕轴的旋转。 来自加速度计的输出信号和来自陀螺仪的输出信号被低通滤波。 将这两个信号进行比较，并使用来自加速度计的输出信号来补偿来自陀螺仪的输出信号，从而降低或消除由于漂移导致的陀螺仪的输出信号的偏差。 由此产生的补偿信号构成来自陀螺仪的输出信号。

公开(公告)号：US08704585B2

公开(公告)日：2014-04-22

申请号：US13976684

申请日：2011-12-22

申请人： Sven-Ake Eriksson

发明人： Sven-Ake Eriksson

IPC分类号： H03K17/687

CPC分类号： G05F3/08 ,  G10H3/187 ,  H03F2200/03 ,  H03F2200/549 ,  H03F2203/45138

摘要： A method for driving a field effect transistor for shaping an electrical signal, representing a sound, to an output signal is disclosed. The method comprises modifying the input signal to an intermediate signal, and output of the intermediate signal to the field effect transistor for shaping the output signal. The method comprises the steps of adjusting the quiescent point of the field effect transistor such that the same is placed in the quadratic region of the transfer characteristics of the field effect transistors, and adjusting the amplitude of the intermediate signal, such that the same causes the potential swing between the gate terminal and the source terminal to at least partly be in the quadratic region of the transfer characteristics of the field effect transistor.

摘要翻译： 公开了一种用于将表示声音的电信号整形到输出信号的场效应晶体管的方法。 该方法包括将输入信号修改为中间信号，并将中间信号输出到场效应晶体管，以对输出信号进行整形。 该方法包括以下步骤：调整场效应晶体管的静态点，使得它们位于场效应晶体管的传输特性的二次区域中，并调节中间信号的幅度，从而使得 栅极端子和源极端子之间的电位摆动至少部分地处于场效应晶体管的传输特性的二次区域。

公开(公告)号：US20130278299A1

公开(公告)日：2013-10-24

申请号：US13976684

申请日：2011-12-22

申请人： Sven-Ake Eriksson

发明人： Sven-Ake Eriksson

IPC分类号： G05F3/08

CPC分类号： G05F3/08 ,  G10H3/187 ,  H03F2200/03 ,  H03F2200/549 ,  H03F2203/45138

摘要： A method for driving a field effect transistor for shaping an electrical signal, representing a sound, to an output signal is disclosed. The method comprises modifying the input signal to an intermediate signal, and output of the intermediate signal to the field effect transistor for shaping the output signal. The method comprises the steps of adjusting the quiescent point of the field effect transistor such that the same is placed in the quadratic region of the transfer characteristics of the field effect transistors, and adjusting the amplitude of the intermediate signal, such that the same causes the potential swing between the gate terminal and the source terminal to at least partly be in the quadratic region of the transfer characteristics of the field effect transistor.

摘要翻译： 公开了一种用于将表示声音的电信号整形到输出信号的场效应晶体管的方法。 该方法包括将输入信号修改为中间信号，并将中间信号输出到场效应晶体管，以对输出信号进行整形。 该方法包括以下步骤：调整场效应晶体管的静态点，使得它们位于场效应晶体管的传输特性的二次区域中，并调节中间信号的幅度，从而使得 栅极端子和源极端子之间的电位摆动至少部分地处于场效应晶体管的传输特性的二次区域。

公开(公告)号：US20120308051A1

公开(公告)日：2012-12-06

申请号：US13577105

申请日：2010-09-13

申请人： Sven-Ake Eriksson

发明人： Sven-Ake Eriksson

IPC分类号： H03F99/00

CPC分类号： H03F3/183 ,  H03F3/45076 ,  H03F2200/534 ,  H03F2203/45228

摘要： Disclosed is a differential microphone pre-amplifier circuit (120) for providing an amplified differential signal at a first (A) and a second (B) output terminal of the microphone pre-amplifier (120), including a first voltage controlled current generator (101), a second voltage controlled current generator (102) and a third voltage controlled current generator (103) all being configured to receive, amplify and convert a voltage signal generated by an associated microphone (110) to a current signal output.

摘要翻译： 公开了一种差分麦克风前置放大器电路（120），用于在麦克风前置放大器（120）的第一（A）和第二（B）输出端提供放大的差分信号，包括第一压控电流发生器 101），第二压控电流发生器（102）和第三压控电流发生器（103），其全部被配置为接收，放大并将由相关联的麦克风（110）产生的电压信号转换成电流信号输出。

公开(公告)号：US20100042349A1

公开(公告)日：2010-02-18

申请号：US12521900

申请日：2007-12-14

申请人： Sven-Ake Eriksson

发明人： Sven-Ake Eriksson

IPC分类号： G06F19/00 ,  G01C19/58

CPC分类号： G01C21/16 ,  G01C19/00

摘要： Method for compensating the drift of an element for position measurement mounted on an object, such as a ship or another vehicle, including at least one gyro for measuring rotation of the object about an axis and at least one accelerometer for measuring two mutually perpendicular components of the acceleration of gravity as a consequence of the orientation of the object relative to the acceleration of gravity along two mutually perpendicular directions, which together correspond to the rotation of the object about the axis. The output signal from the accelerometer and the output signal from the gyro are low-pass filtered. These two signals are compared and the output signal from the gyro is compensated using an output signal from the accelerometer so that the deviation of the output signal of the gyro because of drift is decreased or eliminated. The thus produced, compensated signal constitutes an output signal from the gyro.

摘要翻译： 用于补偿安装在诸如船舶或其他车辆的物体上的用于位置测量的元件的漂移的方法，包括用于测量物体围绕轴线的旋转的至少一个陀螺仪和至少一个加速度计，用于测量两个相互垂直的分量 由于物体相对于沿着两个相互垂直的方向的重力加速度的取向的结果的重力加速度，其一起对应于物体围绕轴的旋转。 来自加速度计的输出信号和来自陀螺仪的输出信号被低通滤波。 将这两个信号进行比较，并使用来自加速度计的输出信号来补偿来自陀螺仪的输出信号，从而降低或消除由于漂移导致的陀螺仪的输出信号的偏差。 由此产生的补偿信号构成来自陀螺仪的输出信号。