公开(公告)号：US5212829A

公开(公告)日：1993-05-18

申请号：US836351

申请日：1992-02-18

申请人： Stefan Brinkhaus

发明人： Stefan Brinkhaus

IPC分类号： H03G11/00 ,  H03H11/04 ,  H04B1/10

CPC分类号： H04B1/1027 ,  H03G11/002 ,  H03H11/0405

摘要： For suppressing interference signals in a multiplex signal an RC member which is preceded by a voltage divider is used. The voltage divider consists of a resistor and two diodes which are connected in parallel and in opposite directions and which perform a limitation with respect to a reference signal taken from the output of a fedback differential amplifier. The output signal of the RC member is applied to the non-inverting input of the differential amplifier. The limitation is carried out with respect to a reference signal corresponding to the signal smoothed by the RC member.

摘要翻译： 为了抑制复用信号中的干扰信号，使用在分压器之前的RC部件。 分压器由电阻器和两个二极管组成，它们并联连接并且沿相反方向连接，并对从反馈差分放大器的输出获得的参考信号执行限制。 RC构件的输出信号被施加到差分放大器的非反相输入端。 相对于与由RC构件平滑的信号相对应的参考信号进行限制。

公开(公告)号：US06188970B1

公开(公告)日：2001-02-13

申请号：US09156366

申请日：1998-09-17

申请人： Karl Anton Becker ,  Stefan Brinkhaus ,  Armin Ganz ,  Bernd Memmler ,  Hans-Eberhardt Kroebel

发明人： Karl Anton Becker ,  Stefan Brinkhaus ,  Armin Ganz ,  Bernd Memmler ,  Hans-Eberhardt Kroebel

IPC分类号： G01R3500

CPC分类号： H03J1/0033 ,  H03J3/28 ,  H03J3/32

摘要： In a method for calibrating or aligning a multistage selective amplifier including an oscillator circuit and at least one tuning circuit, the tuning voltages respectively necessary for aligning the respective tuning circuits to the required receiving frequency are calculated directly from a mathematical relationship between the respective tuning voltage and the oscillator voltage. In order to achieve this, a characteristic multiplicative coefficient and a characteristic additive factor for each tuning circuit are stored in a memory upon manufacturing or switching on the device. In order to select a desired receiving frequency, the respective stored values as well as an oscillator voltage are provided to an amplification circuit, which correspondingly amplifies the oscillator voltage by the multiplicative coefficient and the additive factor and then provides the resulting output value as a tuning voltage to the respective tuning circuit. Thus, all necessary tuning voltages can be determined from the two respective stored values per tuning circuit, as necessary for selecting any desired receiving frequency.

摘要翻译： 在用于校准或对准包括振荡器电路和至少一个调谐电路的多级选择放大器的方法中，将各个调谐电路对准所需接收频率所需的调谐电压直接由各个调谐电压之间的数学关系计算 和振荡器电压。 为了实现这一点，在制造或接通设备时，每个调谐电路的特征乘法系数和特征加法因子被存储在存储器中。 为了选择期望的接收频率，将相应的存储值以及振荡器电压提供给放大电路，放大电路相应地通过乘法系数和相加系数放大振荡器电压，然后将所得到的输出值提供为调谐 电压到相应的调谐电路。 因此，可以根据每个调谐电路的两个相应的存储值来确定所有必要的调谐电压，这是为了选择任何所需的接收频率所必需的。

公开(公告)号：US4450588A

公开(公告)日：1984-05-22

申请号：US368316

申请日：1982-04-14

申请人： Manfred Rohrich ,  Stefan Brinkhaus

发明人： Manfred Rohrich ,  Stefan Brinkhaus

IPC分类号： H03J3/16 ,  H03J5/02 ,  H03J7/02 ,  H04B1/16

CPC分类号： H03J5/0263 ,  H03J3/16 ,  H03J7/02

摘要： The tuning system for a high frequency receiver, particularly an AM receiver for vehicles, comprises a tunable input resonance circuit having a variable inductance formed by the signal winding of a controllable inductor. The control winding of the inductor is supplied with a control current. The control winding is simultaneously used as the frequency determinative element of an auxiliary oscillator. A frequency control loop is used to adjust the oscillating frequency of the auxiliary oscillator by adjustment of the control current. The tuning system allows a selective coupling between the tuned antenna input circuit and the rf front end of the receiver.

摘要翻译： 用于高频接收机，特别是用于车辆的AM接收器的调谐系统包括具有由可控感应器的信号绕组形成的可变电感的可调输入谐振电路。 电感器的控制绕组提供控制电流。 控制绕组同时用作辅助振荡器的频率确定元件。 频率控制回路用于通过调节控制电流来调节辅助振荡器的振荡频率。 调谐系统允许调谐天线输入电路和接收机的rf前端之间的选择性耦合。

公开(公告)号：US5303414A

公开(公告)日：1994-04-12

申请号：US757772

申请日：1991-09-11

申请人： Stefan Brinkhaus

发明人： Stefan Brinkhaus

IPC分类号： H04B1/10 ,  H03G3/34

CPC分类号： H03G3/345

摘要： A method and circuit for suppressing periodic noise interference in a broadcast signal received by a receiver, in which, during reception of the broadcast signal a dip occurs in the amplitude of the received broadcast signal each time noise interference is present, each dip having a slope, by the steps of: determining the values of the amplitude of the received signal; setting a basic received signal threshold value which is less than the value of the received signal at a time when no noise interference is present; during each occurrence of noise interference, increasing the threshold value by an amount proportional to the slope of the corresponding dip in the amplitude of the received signal; and acting on the received signal to suppress noise interference during a time when the amplitude of the received signal is below the increased threshold value produced by the increasing step.

摘要翻译： 一种用于抑制由接收机接收的广播信号中的周期性噪声干扰的方法和电路，其中在广播信号的接收期间，每当存在噪声干扰时，在所接收的广播信号的振幅中出现下降，每次下降具有斜率 通过以下步骤：确定接收信号的振幅值; 设置在不存在噪声干扰的情况下小于接收信号值的基本接收信号阈值; 在每次出现噪声干扰的过程中，将阈值增加一个与接收信号振幅相应的倾角相对应的量; 并且在接收信号的振幅低于由增加步骤产生的增加的阈值的时间期间，作用于所接收的信号以抑制噪声干扰。

公开(公告)号：US5584063A

公开(公告)日：1996-12-10

申请号：US403919

申请日：1995-08-17

申请人： Stefan Brinkhaus

发明人： Stefan Brinkhaus

IPC分类号： H03D3/00 ,  H04B1/06

CPC分类号： H03D3/005

摘要： The invention concerns an I.F. filter arrangement in a receiver for receiving FM signals. An I.F. filter arrangement is to be provided which no longer contains the disadvantageous effects of a control loop from which a control value is extracted from the MPX signal to be used for tracking the I.F. filter. The solution according to the invention is an I.F. filter arrangement having a filter device which comprises a defined, in particular, a fixed adjusted bandpass region and at least two outputs having center frequencies staggered with respect to one another or I.F. frequencies staggered with respect to one another at the same center frequency. The signals from the outputs are fed to a weighting device which is regulated by a control value extracted from the demodulated FM signal.

摘要翻译： PCT No.PCT / DE94 / 00842 Sec。 371日期：1995年8月17日 102（e）日期1995年8月17日PCT 1994年7月21日PCT公布。 WO95 / 03650 PCT出版物 日期1995年2月2日发明涉及I.F. 用于接收FM信号的接收机中的滤波器布置。 一个 将提供不再包含控制环的不利影响的滤波器布置，从该控制环中提取用于跟踪I.F的MPX信号的控制值。 过滤。 根据本发明的溶液是I.F. 滤波器装置具有滤波器装置，其包括限定的，特别是固定的调整带通区域和至少两个具有相对于彼此交错或中心频率的输出端。 频率在相同的中心频率彼此交错。 来自输出的信号被馈送到由从解调的FM信号中提取的控制值调节的加权装置。