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    • 1. 发明申请
    • Frequency Selective Logarithmic Amplifier With Intrinsic Frequency Demodulation Capability
    • 具有固有频率解调能力的频率选择对数放大器
    • US20140273898A1
    • 2014-09-18
    • US14213972
    • 2014-03-14
    • DockOn AG
    • Forrest BrownPatrick RadaAlexandre Dupuy
    • H04B1/16
    • H04W52/52G06G7/24H03D1/18H03D3/00H03D11/04H03D11/08H03D2200/006H04B1/26H04L7/033H04L27/14
    • 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.
    • 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。
    • 7. 发明授权
    • Low-power, noise insensitive communication channel using logarithmic detector amplifier (LDA) demodulator
    • 低功耗,噪声不敏感的通信信道采用对数检波放大器(LDA)解调器
    • US09048943B2
    • 2015-06-02
    • US14210525
    • 2014-03-14
    • Dockon AG
    • Patrick RadaForrest Brown
    • H04B3/00H04B15/00H04B1/10H04B3/02
    • H04B1/3838H03D3/00H03D3/005H03D2200/0098H04B1/10H04B3/02H04B15/00H04L27/106H04L27/2014H04L27/2017H04M1/0202
    • A method is provided for communicating signals at a low power level in an electromagnetic interference (EMI) environment. A first device transmits a modulated signal having a first carrier frequency, including the encoded information via a hardwire transmission medium. In one aspect, the power level of the modulated signal can be adjusted to minimize power consumption or reduce the generation of EMI. The modulated signal may be in one of the following formats: frequency modulation (FM) or phase modulation (PM) to name a few examples. A second device including a logarithmic detector amplifier (LDA) demodulator circuit receives the signal, which may be mixed with EMI. The LDA demodulator circuit amplifies the modulated signal, without amplifying the EMI, to supply a demodulated baseband signal, which may be an n-ary digital signal, or an audio signal. A low-power, noise insensitive communication channel is also provided.
    • 提供一种用于在电磁干扰(EMI)环境中以低功率电平传送信号的方法。 第一设备经由硬线传输介质发送包括经编码的信息的具有第一载波频率的调制信号。 在一个方面,可以调整调制信号的功率电平以最小化功耗或减少EMI的产生。 调制信号可以是以下格式之一:频率调制(FM)或相位调制(PM),仅举几个例子。 包括对数检波器放大器(LDA)解调器电路的第二设备接收可以与EMI混合的信号。 LDA解调器电路放大调制信号,而不放大EMI,以提供解调的基带信号,其可以是n元数字信号或音频信号。 还提供了低功率,噪声不敏感的通信信道。
    • 10. 发明申请
    • Low-Power, Noise Insensitive Communication Channel using Logarithmic Detector Amplifier (LDA) Demodulator
    • 低功耗,噪声不敏感通信信道使用对数检波器放大器(LDA)解调器
    • US20140269972A1
    • 2014-09-18
    • US14210525
    • 2014-03-14
    • DOCKON AG
    • Patrick RadaForrest Brown
    • H04B15/00H04B3/02
    • H04B1/3838H03D3/00H03D3/005H03D2200/0098H04B1/10H04B3/02H04B15/00H04L27/106H04L27/2014H04L27/2017H04M1/0202
    • A method is provided for communicating signals at a low power level in an electromagnetic interference (EMI) environment. A first device transmits a modulated signal having a first carrier frequency, including the encoded information via a hardwire transmission medium. In one aspect, the power level of the modulated signal can be adjusted to minimize power consumption or reduce the generation of EMI. The modulated signal may be in one of the following formats: frequency modulation (FM) or phase modulation (PM) to name a few examples. A second device including a logarithmic detector amplifier (LDA) demodulator circuit receives the signal, which may be mixed with EMI. The LDA demodulator circuit amplifies the modulated signal, without amplifying the EMI, to supply a demodulated baseband signal, which may be an n-ary digital signal, or an audio signal. A low-power, noise insensitive communication channel is also provided.
    • 提供一种用于在电磁干扰(EMI)环境中以低功率电平传送信号的方法。 第一设备经由硬线传输介质发送包括经编码的信息的具有第一载波频率的调制信号。 在一个方面,可以调整调制信号的功率电平以最小化功耗或减少EMI的产生。 调制信号可以是以下格式之一:频率调制(FM)或相位调制(PM),仅举几个例子。 包括对数检波器放大器(LDA)解调器电路的第二设备接收可以与EMI混合的信号。 LDA解调器电路放大调制信号,而不放大EMI,以提供解调的基带信号,其可以是n元数字信号或音频信号。 还提供了低功率,噪声不敏感的通信信道。