Logarithmic detector amplifier system in open-loop configuration for use as high sensitivity selective receiver without frequency conversion

    公开(公告)号:US11183974B2

    公开(公告)日:2021-11-23

    申请号:US15087720

    申请日:2016-03-31

    Applicant: DOCKON AG

    Abstract: A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system may include an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to generate a series of modulated pulses, and one or more resonant circuits including at least one variable capacitor, coupled with the amplifying circuit and configured to establish a frequency of operation and generate an output signal having a second frequency being substantially the same as the first frequency, with the operating frequency being adjustable in response to baseband information received from the system via the one or more variable capacitors.

    Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion

    公开(公告)号:US10333475B2

    公开(公告)日:2019-06-25

    申请号:US15723060

    申请日:2017-10-02

    Applicant: DOCKON AG

    Abstract: A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.

    ADAPTIVE LINE EQUALIZER FOR IMPROVING DATA COMMUNICATION OVER LESS THAN PERFECT POWER LINES OR TRANSMISSION LINES

    公开(公告)号:US20170244447A1

    公开(公告)日:2017-08-24

    申请号:US15476747

    申请日:2017-03-31

    Applicant: DOCKON AG

    Abstract: Systems and methods for improving data communication over less than perfect power lines or transmission lines are described. The systems and methods allow for pushing out electrically any null within a frequency range of interest and/or for lossless transmission by providing impedance matching between communication devices and the transmission line. This is achieved by implementing line equalizing modules within the transceivers, at the transmitter side and/or the receiver side, or by plugging, as a stand-alone module, into an electrical outlet within a building. The line equalizing module includes multiple inductor-capacitor cells coupled in cascade where multiple switches allow for selective and concurrent connection between the inductor-capacitor cells. In another embodiment, the line equalizing module includes variable inductor-capacitor cells. The line equalizing module provides a variable propagation delay that allows for stretching electrically the transmission line. Further improvement may achieve by adjusting the operational frequency using an up-conversion or down-conversion operation.

    Frequency Selective Logarithmic Amplifier With Intrinsic Frequency Demodulation Capability
    4.
    发明申请
    Frequency Selective Logarithmic Amplifier With Intrinsic Frequency Demodulation Capability 有权
    具有固有频率解调能力的频率选择对数放大器

    公开(公告)号:US20140273898A1

    公开(公告)日:2014-09-18

    申请号:US14213972

    申请日:2014-03-14

    Applicant: DockOn AG

    Abstract: A regenerative selective logarithmic detector amplifier (LDA) can have integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated signal and amplify or demodulate it with high sensitivity, high skirt ratio and minimized noise when compared to the prior art. When used in conjunction with other circuits such as a PLL or mixer, it can improve interference rejection and frequency selectivity and be locked on a precise channel in frequency and phase. The LDA produces intermittent oscillations that are self-quenched when reaching a given threshold. It also embeds the circuitry to perform direct FM discrimination. FM demodulation process is completed by a simple analog or digital frequency to voltage converter. This plus the fact that the instantaneous regeneration gain is low-medium permit to detect signals of small amplitudes buried in the noise.

    Abstract translation: 再生选择对数检波放大器(LDA)可以集成FM解调功能。 与现有技术相比,它可以接收有线或无线FM调制信号,并以高灵敏度,高裙边比和最小化的噪声放大或解调它。 当与其他电路(如PLL或混频器)结合使用时,可以提高干扰抑制和频率选择性,并锁定在频率和相位上的精确信道上。 LDA产生间歇振荡,当达到给定的阈值时,它们会自我淬火。 它还嵌入电路以执行直接的FM鉴别。 FM解调过程由简单的模拟或数字频率到电压转换器完成。 这加上瞬时再生增益是低介质允许检测埋在噪声中的小幅度信号的事实。

    Amplifier system for use as high sensitivity selective receiver without frequency conversion

    公开(公告)号:US11095255B2

    公开(公告)日:2021-08-17

    申请号:US15916873

    申请日:2018-03-09

    Applicant: DOCKON AG

    Abstract: An amplifying system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The amplifying system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.

    Frequency selective logarithmic amplifier with intrinsic frequency demodulation capability

    公开(公告)号:US11012953B2

    公开(公告)日:2021-05-18

    申请号:US15493617

    申请日:2017-04-21

    Applicant: DOCKON AG

    Abstract: A regenerative selective logarithmic detector amplifier (LDA) can have integrated FM demodulation capabilities. It can receive a wired or wireless FM modulated signal and amplify or demodulate it with high sensitivity, high skirt ratio and minimized noise when compared to the prior art. When used in conjunction with other circuits such as a PLL or mixer, it can improve interference rejection and frequency selectivity and be locked on a precise channel in frequency and phase. The LDA produces intermittent oscillations that are self-quenched when reaching a given threshold. It also embeds the circuitry to perform direct FM discrimination. FM demodulation process is completed by a simple analog or digital frequency to voltage converter. This plus the fact that the instantaneous regeneration gain is low-medium permit to detect signals of small amplitudes buried in the noise.

    Compound loop antenna system with isolation frequency agility

    公开(公告)号:US10270170B2

    公开(公告)日:2019-04-23

    申请号:US15351300

    申请日:2016-11-14

    Applicant: DOCKON AG

    Abstract: An antenna system is provided, including a first antenna, a second antenna, a ground plane, and a resonant isolator located proximate to the first antenna and the second antenna. The resonant isolator is coupled to the ground plane at or proximate to one current null point created by a first antenna and at or proximate to a second current null point created by a second antenna, and is configured to isolate the first antenna from the second antenna at a resonance. In some cases, the resonant isolator may include at least two conductive portions that may be substantially parallel to one another. The resonant isolator may also include an active tuning element that may change the resonance at which the resonant isolator de-couples the two antennas. In some cases, each of the antennas may be a capacitively-coupled compound loop antenna.

    Adaptive line equalizer for improving data communication over less than perfect power lines or transmission lines

    公开(公告)号:US09647722B2

    公开(公告)日:2017-05-09

    申请号:US14214371

    申请日:2014-03-14

    Applicant: Dockon AG

    Abstract: Systems and methods for improving data communication over less than perfect power lines or transmission lines are described. The systems and methods allow for pushing out electrically any null within a frequency range of interest and/or for lossless transmission by providing impedance matching between communication devices and the transmission line. This is achieved by implementing line equalizing modules within the transceivers, at the transmitter side and/or the receiver side, or by plugging, as a stand-alone module, into an electrical outlet within a building. The line equalizing module includes multiple inductor-capacitor cells coupled in cascade where multiple switches allow for selective and concurrent connection between the inductor-capacitor cells. In another embodiment, the line equalizing module includes variable inductor-capacitor cells. The line equalizing module provides a variable propagation delay that allows for stretching electrically the transmission line. Further improvement may achieve by adjusting the operational frequency using an up-conversion or down-conversion operation.

    Logarithmic amplifier with universal demodulation capabilities
    10.
    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:US09356561B2

    公开(公告)日:2016-05-31

    申请号:US14750406

    申请日:2015-06-25

    Applicant: DockOn AG

    Abstract: 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 superheterodyne. 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.

    Abstract translation: 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/或超外差的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。

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