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公开(公告)号：US20240048000A1
公开(公告)日：2024-02-08
申请号：US18492363
申请日：2023-10-23
发明人： Chun-Kil Jung , Hak Do Kim , Sang Youn Noh
CPC分类号： H02J50/12 , H03D1/10 , H02J50/10 , H02J7/00714 , H02J50/80
摘要： A wireless power reception device and a wireless communication method thereby are provided. The wireless communication method by the wireless power reception device may comprise the steps of: receiving a wireless power signal from a wireless power transmission device; measuring the strength of the wireless power signal; modulating the amplitude of the wireless power signal according to the measured strength of the wireless power signal; and performing communication with the wireless power transmission device by using the signal having the amplitude modulated.
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公开(公告)号：US11101698B2
公开(公告)日：2021-08-24
申请号：US16803491
申请日：2020-02-27
发明人： Chun-Kil Jung , Hak Do Kim , Sang Youn Noh
摘要： A wireless power reception device and a wireless communication method thereby are provided. The wireless communication method by the wireless power reception device may comprise the steps of: receiving a wireless power signal from a wireless power transmission device; measuring the strength of the wireless power signal; modulating the amplitude of the wireless power signal according to the measured strength of the wireless power signal; and performing communication with the wireless power transmission device by using the signal having the amplitude modulated.
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公开(公告)号：US20210021248A1
公开(公告)日：2021-01-21
申请号：US16978541
申请日：2019-02-27
发明人： Hiroshi Hamada , Hideyuki Nosaka
摘要： A gain adjustment unit constituted by a distribution switch having a control terminal is provided in an input unit of an amplifier circuit. One end of a coupler is connected to an output line of the amplifier circuit, another end of the coupler is connected to an anode of a diode, and a monitor terminal is connected via a low-pass filter to a cathode of the diode. The anode of the diode is unbiased.
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4.发明授权公开(公告)号：US09571210B2
公开(公告)日：2017-02-14
申请号：US13985442
申请日：2012-02-14
申请人： Shinichi Fukuda , Hiroaki Nakano
发明人： Shinichi Fukuda , Hiroaki Nakano
CPC分类号： H04B17/21 , H03D1/10 , H04B5/0031 , H04B5/0081 , H04B5/02
摘要： This disclosure relates to a signal processing device, a signal processing method, and a receiving device that are capable of detecting response information at a high degree of accuracy from a carrier signal that is load-modulated based on the response information. A positive DC generating unit 61 generates a positive threshold based on a load-modulated carrier signal. A positive selecting unit 62 compares the voltage of the carrier signal with the positive threshold, and outputs the value of the larger one to an adding unit 65. A negative DC generating unit 63 generates a negative threshold based on the load-modulated carrier signal. A negative selecting unit 64 compares the voltage of the carrier signal with the negative threshold, and outputs the value of the smaller one to the adding unit 65. The adding unit 65 adds the output of the positive selecting unit 62 and the output of the negative selecting unit 64, and outputs the addition result to an IQ detecting unit 53. As a result of the combining, a signal that has smaller Vpp than that of the original carrier signal and maintains the fluctuation portions of the voltage is obtained. This disclosure can be applied to non-contact communication systems.
摘要翻译： 本公开涉及一种信号处理装置，信号处理方法和接收装置，其能够基于响应信息从负载调制的载波信号以高精度检测响应信息。 正直流产生单元61基于负载调制载波信号产生正阈值。 正选择单元62将载波信号的电压与正阈值进行比较，并将较大值的值输出到加法单元65.负DC产生单元63基于负载调制载波信号产生负阈值。 负选择单元64将载波信号的电压与负阈值进行比较，并将较小的值的值输出到加法单元65.加法单元65将正选择单元62的输出和负选择单元62的输出相加 选择单元64，并将相加结果输出到IQ检测单元53.作为组合的结果，获得具有比原始载波信号更小的Vpp的信号并且保持电压的波动部分。 本公开可应用于非接触式通信系统。
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公开(公告)号：US09297840B2
公开(公告)日：2016-03-29
申请号：US13612516
申请日：2012-09-12
申请人： Kazuhiro Ueda
发明人： Kazuhiro Ueda
摘要： There is provided a power detection circuit capable of appropriately adjusting detection voltage characteristics by using simple configuration. The power detection circuit includes a first resistor having current applied thereto to adjust a detection voltage value of input power, an element having an applied voltage and a load characteristic changed according to the input power, and a second resistor connected to the element and having current applied thereto when resistance of the element becomes relatively low, to adjust the detection voltage value of the input power. Detection voltage characteristics may be appropriately adjusted using a simple configuration.
摘要翻译： 提供了能够通过简单的配置适当地调整检测电压特性的功率检测电路。 功率检测电路包括：第一电阻器，其施加有电流以调节输入功率的检测电压值;具有施加电压和根据输入功率改变的负载特性的元件;以及连接到元件并具有电流的第二电阻器 当元件的电阻相对较低时施加到其上，以调整输入功率的检测电压值。 可以使用简单的配置适当地调整检测电压特性。
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公开(公告)号：US08854124B2
公开(公告)日：2014-10-07
申请号：US13613335
申请日：2012-09-13
申请人： Tae-Jin Chung
发明人： Tae-Jin Chung
CPC分类号： H03D1/10 , H03D2200/0023 , H03D2200/0066 , H04L27/06
摘要： The envelope detector for detecting an envelope of a digital modulation signal in accordance with an embodiment of the present invention, includes: a mixer configured to receive the digital modulation signal and output a square signal squaring the digital modulation signal when being applied with bias voltage; a bias voltage applying unit configured to apply the bias voltage to the mixer; and a DC blocking capacitor configured to be connected to the mixer to block DC component included in the square signal. In accordance with the embodiment of the present invention, it is possible to provide the envelope detector having the simple structure while having the good receiving sensitivity and the wide dynamic range characteristics and detect the envelope of the modulated signal without transmitting the carrier signal in the transmitter and generating the separate signal in the receiver, thereby saving the costs consumed to implement the transceiver.
摘要翻译： 根据本发明实施例的用于检测数字调制信号的包络的包络检测器包括：混合器，被配置为在施加偏置电压时接收数字调制信号并输出平方数字调制信号的平方信号; 偏置电压施加单元，被配置为将偏置电压施加到混合器; 以及分压电容器，被配置为连接到混频器以阻止包括在方波信号中的DC分量。 根据本发明的实施例，可以提供具有简单结构的包络检测器，同时具有良好的接收灵敏度和宽的动态范围特性，并且检测调制信号的包络而不在发射机中发送载波信号 并在接收机中产生单独的信号，从而节省实现收发器所消耗的成本。
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公开(公告)号：US07609109B2
公开(公告)日：2009-10-27
申请号：US11688121
申请日：2007-03-19
申请人： Shigeru Arisawa
发明人： Shigeru Arisawa
CPC分类号： G06K7/0008 , G06K19/0723 , H03C1/08 , H03C1/14 , H03C1/36 , H03F3/72 , H03F2200/327 , H03F2203/7215 , H03K7/02 , H04L27/04 , H04L27/06
摘要： In a contactless IC card system, a modulating circuit manufactured in an IC form is operable at a high power efficiency. The demodulating apparatus is configured to include: signal processing means for producing first and second input signals; first clamping circuit for clamping said first input signal; second clamping circuit for clamping said second input signal; first band limiting means for removing a component of said first input signal from an output signal of said first clamping circuit; second band limiting means for removing a component of said second input signal from an output signal of said second clamping circuit; and calculating means for adding, or averaging an output signal of said first band limiting means and an output signal of said second band limiting means.
摘要翻译： 在非接触IC卡系统中，以IC形式制造的调制电路以高功率效率工作。 解调装置被配置为包括：信号处理装置，用于产生第一和第二输入信号; 用于钳位所述第一输入信号的第一钳位电路; 用于钳位所述第二输入信号的第二钳位电路; 第一频带限制装置，用于从所述第一钳位电路的输出信号中去除所述第一输入信号的分量; 第二频带限制装置，用于从所述第二钳位电路的输出信号中去除所述第二输入信号的分量; 以及用于将所述第一频带限制装置的输出信号和所述第二频带限制装置的输出信号相加或平均的计算装置。
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8.发明授权公开(公告)号：US07412005B2
公开(公告)日：2008-08-12
申请号：US10783129
申请日：2004-02-19
申请人： Haifeng Wang , Teemu Sipilä
发明人： Haifeng Wang , Teemu Sipilä
CPC分类号： H04L25/0234
摘要： Disclosed is an interpolation procedure for channel estimation that is based on minimum mean-squared error (MMSE) estimates over comb-type pilot signals. The time domain (TD) interpolated channel estimation suppresses, by the use of an advanced noise suppression scheme, the noise jitter that spreads over all or substantially all of the bandwidth of interest. The original channel estimates in the frequency domain (FD) are transformed into the TD by an IFFT function, where in one embodiment a predefined threshold on actual power or accumulative power is used to minimize the noise jitter over the bandwidth. In a further embodiment the channel estimates in the FD are transformed into the TD and the noise jitter is suppressed by preserving the channel estimates at the actual tap delays and setting the others to zeroes. In either embodiment the noise suppressed channel estimates are then transformed into the FD for FD equalization.
摘要翻译： 公开了一种基于梳状导频信号的最小均方误差（MMSE）估计的信道估计的内插过程。 时域（TD）内插信道估计通过使用高级噪声抑制方案来抑制在感兴趣的所有或基本上所有带宽上传播的噪声抖动。 通过IFFT功能将频域（FD）中的原始信道估计变换为TD，其中在一个实施例中，使用实际功率或累积功率的预定义阈值来最小化带宽上的噪声抖动。 在另一实施例中，FD中的信道估计被转换为TD，并且通过在实际抽头延迟期间保持信道估计并将其他值设置为零来抑制噪声抖动。 在任一实施例中，噪声抑制信道估计然后被变换成用于FD均衡的FD。
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9.发明授权Diode circuit in dielectric waveguide device, and detector and mixer using the diode circuit 失效介质波导器件中的二极管电路，以及使用二极管电路的检测器和混频器
公开(公告)号：US5987315A
公开(公告)日：1999-11-16
申请号：US924015
申请日：1997-08-29
申请人： Hiroshi Nishida
发明人： Hiroshi Nishida
CPC分类号： H03D9/0641 , H01P5/1022
摘要： A diode circuit in a dielectric waveguide device designed to improve the facility with which a circuit substrate is mounted in the dielectric waveguide, to make matching between a dielectric waveguide and a diode easier, and to reduce conversion losses, and a detector and a mixer using such a diode circuit. A conductor pattern is disposed so as to intersect a pair of dielectric strips substantially perpendicularly to the same, and two filter circuits are formed in the dielectric pattern on opposite sides of the dielectric strips, thereby forming a resonance circuit. A diode is mounted in the resonance circuit in series with the conductor pattern.
摘要翻译： 一种电介质波导器件中的二极管电路，其设计用于改善电路基板安装在电介质波导中的设备，使电介质波导和二极管之间的匹配更容易，并减少转换损耗;以及检测器和使用 这样的二极管电路。 导体图案被布置成与基本上垂直于其的一对介质条相交，并且在介质条的相对侧上的电介质图案中形成两个滤波电路，从而形成谐振电路。 二极管与导体图案串联安装在谐振电路中。
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10.发明授权
公开(公告)号：US5936462A
公开(公告)日：1999-08-10
申请号：US968113
申请日：1997-11-12
申请人： Akihiro Muraishi
发明人： Akihiro Muraishi
摘要： An amplitude-modulated carrier signal is demodulated by passage through a limiting amplifier that converts the amplitude-modulated carrier signal to a signal of constant amplitude, and also produces a received signal strength indicator signal. The received signal strength indicator signal is used as the demodulated signal.
摘要翻译： 幅度调制载波信号通过限幅放大器解调，该限幅放大器将调幅载波信号转换为恒幅信号，并产生接收信号强度指示信号。 接收到的信号强度指示信号用作解调信号。
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