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19 条记录 (耗时 0.011 秒)

    Super-regenerative circuit apparatus for a door operator receiver and door operator incorporating the same
    2.
    发明授权
    Super-regenerative circuit apparatus for a door operator receiver and door operator incorporating the same 失效
    用于门操作者接收器的超再生电路装置和包括其的门操作器

    公开(公告)号：US5742902A

    公开(公告)日：1998-04-21

    申请号：US622853

    申请日：1996-03-29

    申请人： Jerry Lynn Shore

    发明人： Jerry Lynn Shore

    IPC分类号： G07C9/00 ,  H03D11/08 ,  H04B1/30 ,  H04B1/16

    CPC分类号： H03D11/08 ,  G07C9/00182 ,  H04B1/30 ,  G07C2009/00793 ,  G07C2009/00928

    摘要： A door operator includes a low noise, low radiation emission but high sensitivity super-regenerative receiver. The low radiation emission of the receiver allows the installation of plural operators in close proximity. The door operator receiver includes a super-regenerative circuit apparatus with a super-regenerative circuit and a resistively loaded cascode preamplifier stage that phase shifts a received RF signal and tightly couples the preamplifier stage output to the super-regenerative circuit. A cascode circuit arrangement of a field effect transistor (FET) and a bipolar transistor provides forward gain and very high reverse direction gain or isolation for the preamplifier stage. Preferably, the resistive loading elements and the phase-shifting elements are coupled to the cascode circuit between the transistors. The present invention also relates to a cascode preamplifier stage, a super-regenerative circuit, and a RF receiver each including such a preamplifier stage.

    摘要翻译： 门操作员包括低噪声，低辐射发射但高灵敏度的超再生接收器。 接收器的低辐射发射器允许安装多个操作者靠近。 门操作者接收机包括具有超再生电路和电阻负载的共源共栅前置放大器级的超再生电路装置，其相移移位所接收的RF信号并将前置放大器级输出端紧密耦合到超再生电路。 场效应晶体管（FET）和双极晶体管的级联电路布置为前置放大器级提供正向增益和非常高的反向增益或隔离。 优选地，电阻负载元件和移相元件耦合到晶体管之间的共源共栅电路。 本发明还涉及每个包括这样的前置放大器级的共源共栅前置放大器级，超级再生电路和RF接收器。

    BPSK demodulation
    3.
    发明授权
    BPSK demodulation 有权

    公开(公告)号：US10742462B2

    公开(公告)日：2020-08-11

    申请号：US16281868

    申请日：2019-02-21

    申请人： Keyssa Systems, Inc.

    发明人： Patrick Antoine Rada

    IPC分类号： H04L27/233 ,  H03D11/08 ,  H04L7/00 ,  H04L27/22 ,  H04L27/18 ,  H04L27/34

    摘要： Methods, systems, and apparatus for EM communications. One of the apparatus includes a super-regenerative amplifier (SRA) configured to receive a binary phase shift keying (BPSK) modulated signal and to output an amplitude signal as a function of changes in phase in the BPSK modulated signal; a pseudo synchronous demodulator that rectifies the amplitude signal and generates an envelope of the rectified amplitude signal; and an analog to digital converter that converts the amplitude values of the envelope to digital binary values.

    Logarithmic amplifier with universal demodulation capabilities
    4.
    发明授权
    Logarithmic amplifier with universal demodulation capabilities 有权
    具有通用解调功能的对数放大器

    公开(公告)号：US09397382B2

    公开(公告)日：2016-07-19

    申请号：US14214437

    申请日：2014-03-14

    申请人： DockOn AG

    发明人： Forrest Brown ,  Patrick Rada ,  Alexandre Dupuy

    IPC分类号： H03D11/08 ,  H01P5/19 ,  H03D1/08 ,  H03D11/04 ,  H01Q7/00 ,  H01Q21/00 ,  H03D1/18 ,  H03D7/02 ,  H03D7/12 ,  H03D7/16 ,  H03F3/191 ,  H03F1/08 ,  H03F3/04

    CPC分类号： H01P5/19 ,  H01Q7/00 ,  H01Q21/0075 ,  H03D1/08 ,  H03D1/18 ,  H03D7/02 ,  H03D7/12 ,  H03D7/165 ,  H03D7/166 ,  H03D11/04 ,  H03D11/08 ,  H03D2200/0043 ,  H03D2200/0098 ,  H03F1/08 ,  H03F3/04 ,  H03F3/191 ,  H03F2200/165 ,  H03F2200/294 ,  H03G11/04

    摘要： A logarithmic amplifier (LDA) is described that includes an amplifier configured to oscillate a modulated input signal, a feedback establishing a 180 degree phase shift between the amplifier input and the output and maintaining oscillation of the input signal, a parallel resonant circuit connected to the amplifier output causing the amplifier to resonate at or around a center frequency, and a controller connected to the amplifier input cyclically terminating oscillation of the input signal each time a pre-determined threshold of current is detected, the controller including a low pass filter configured to generate a second output signal having a repetition frequency. The LDA may be used for AM with or without a PLL and/or a superhetrodyne. The LDA may be implemented as a mixer and used for phase demodulation. The LDA may be used for phase demodulation. The LDA may be used in place of a low noise amplifier.

    摘要翻译： 描述了对数放大器（LDA），其包括被配置为振荡调制输入信号的放大器，在放大器输入和输出之间建立180度相移并保持输入信号的振荡的反馈，并联谐振电路 放大器输出使得放大器在中心频率处或周围谐振，以及连接到放大器输入端的控制器，每当检测到电流的预定阈值时循环地终止输入信号的振荡，则控制器包括低通滤波器， 产生具有重复频率的第二输出信号。 LDA可用于具有或不具有PLL和/或超临界的AM。 LDA可以实现为混频器并用于相位解调。 LDA可用于相位解调。 可以使用LDA代替低噪声放大器。

    Digital super-regenerative detector RF receiver
    5.
    发明授权
    Digital super-regenerative detector RF receiver 失效
    数字超再生检测器RF接收机

    公开(公告)号：US06118828A

    公开(公告)日：2000-09-12

    申请号：US907469

    申请日：1997-08-08

    申请人： Fred Freybler Schleifer

    发明人： Fred Freybler Schleifer

    IPC分类号： H03D11/00 ,  H03D11/08 ,  H04B1/30 ,  H04L25/06

    CPC分类号： H03D11/08 ,  H04B1/30 ,  H03D11/00

    摘要： A digital super-regenerative receiver has an analog RF detector and a regenerative oscillator. An output signal of the analog RF detector is used to generate a digital signal from which an oscillator bias is adjusted in order to maintain the oscillator start-up time at a fixed level. The circuit senses through the use of a multi-level threshold detector if the start-up time is earlier or later than the predetermined start-up time and produces an output signal when the majority of the start times are ahead of the expected start time.

    摘要翻译： 数字超再生接收机具有模拟RF检测器和再生振荡器。 模拟RF检测器的输出信号用于产生数字信号，调整振荡器偏置以便将振荡器起振时间保持在固定电平。 如果启动时间早于或晚于预定的启动时间，则电路通过使用多电平阈值检测器来感测，并且当大部分开始时间在预期开始时间之前时产生输出信号。

    Frequency-converting super-regenerative transceiver
    7.
    发明授权
    Frequency-converting super-regenerative transceiver 有权

    公开(公告)号：US10749472B2

    公开(公告)日：2020-08-18

    申请号：US16314656

    申请日：2018-02-11

    申请人： Tristan Orion Rocheleau ,  Thura Lin Naing

    发明人： Tristan Orion Rocheleau ,  Thura Lin Naing

    IPC分类号： H03B5/32 ,  H04B1/16 ,  H03B5/30 ,  H03B5/12 ,  H03D11/04 ,  H04L27/12 ,  H03D11/08 ,  H03H9/24 ,  H03H9/02 ,  H03H3/02

    摘要： The present disclosure provides a frequency-converting super regenerative transceiver with a frequency mixer coupled to a resonator and a feedback element having a controllable gain. The frequency-converting super-regenerative transceiver utilizes the frequency mixer to shift the incoming frequencies, based on a controlled oscillator, to match the frequency of operation of the super-regenerative transceiver. The frequency-converting super-regenerative transceivers described herein permit signal data capture over a broad range of frequencies and for a range of communication protocols. The frequency-converting super-regenerative transceivers described herein are tunable, consume very little power for operation and maintenance, and permit long term operation even when powered by very small power sources (e.g., coin batteries).