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公开(公告)号：US10938393B2
公开(公告)日：2021-03-02
申请号：US16709604
申请日：2019-12-10
摘要： An oscillator is configured to generate a signal with a frequency sweep, the oscillator having circuitry comprising a set of capacitors, each capacitor of the set of capacitors being switchably connectable in parallel in the circuitry so that the frequency of the signal has an intrinsic dependence on the number of the capacitors connected, a shift register controllable by a clock line and comprising a number of bits, each bit of the number of bits controlling connection of a respective capacitor of the set of capacitors so that the capacitors are connectable or disconnectable in a pre-determined order by shifting, respectively, activation or de-activation bits into the shift register, wherein the shifting is paced by the clock line; and a clock signal generator configured to output a clock signal with a time modulation on the clock line.
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公开(公告)号：US10236931B2
公开(公告)日：2019-03-19
申请号：US15691772
申请日：2017-08-31
发明人： Yi-Chang Shih , Yu-Che Yang , Kun-Hsun Liao
摘要： A dual-mode signal transceiver includes a first transmitter circuit, a second transmitter circuit, and a receiver circuit. The first transmitter circuit is configured to operate in a first mode and configured to process a first input signal according to a first oscillating signal, in order to output a first output signal. The second transmitter circuit is configured to operate in a second mode and configured to process a second input signal according to a second oscillating signal, in order to output a second output signal, wherein a frequency of the second oscillating signal is not an integral multiple of a frequency of the first oscillating signal. The receiver circuit is configured to process an external signal associated with one of the first mode and the second mode according to the first oscillating signal, in order to read data associated with the external signal.
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3.发明授权公开(公告)号：US10122404B2
公开(公告)日：2018-11-06
申请号：US15718527
申请日：2017-09-28
申请人： Movandi Corporation
发明人： Seunghwan Yoon , Alfred Grau Besoli , Ahmadreza Rofougaran , Farid Shirinfar , Maryam Rofougaran , Sam Gharavi , Michael Boers
摘要： A radio frequency (RF) front end chip in a phased array antenna panel for transmitting a modulated circularly-polarized signal is disclosed. The RF front end chip includes an oscillator providing an angular speed modulation signal to a quadrature generation block, the quadrature generation block providing an in-phase signal and a quadrature signal based on the angular speed modulation signal, a first amplifier receiving the in-phase signal and a data signal, and providing a modulated horizontally-polarized signal, and a second amplifier receiving the quadrature signal and the data signal, and providing a modulated vertically-polarized signal, where a modulated circularly-polarized signal is generated based on the modulated horizontally-polarized signal and the modulated vertically-polarized signal. The angular speed modulation signal controls an angular speed of the modulated circularly-polarized signal. The data signal is encoded by the angular speed modulation signal.
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公开(公告)号：US20170366196A1
公开(公告)日：2017-12-21
申请号：US15532675
申请日：2014-12-03
摘要： Provided is programmable circuit for interfacing with a field device. The circuit includes only one analog-to-digital converter (ADC) configured to receive from the field device one from the group including a current signal and a voltage signal. The received one signal has frequency shift keying tones (FSK) superimposed thereon, the ADC being configured to extract information from the received one signal and the FSK tones simultaneously. Also included is only one digital-to-analog converter configured to drive an output signal to the field device, the output signal (i) including one from the group including a current signal and a voltage signal and (ii) being summed with an FSK-modulated signal.
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公开(公告)号：US09847894B2
公开(公告)日：2017-12-19
申请号：US14204387
申请日：2014-03-11
发明人： Chang Soon Park , Young Jun Hong , Joon Seong Kang
摘要： A transmitter is configured to transmit a radio frequency (RF) signal to a receiver. The receiver is configured to receive the RF signal and decode data. Furthermore, a method of wireless communication is provided between the transmitter and the receiver, in which the transmitter transmits to the receiver the RF signal. A carrier phase of the RF signal is randomly converted. The receiver detects an envelope of the RF signal, and extracts data from the RF signal.
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6.发明授权Spin modulator and spin-transfer torque oscillators having phase tuning means and modulation method thereof 有权具有相位调整装置及其调制方法的自旋调制器和自旋转移扭矩振荡器公开(公告)号：US09543971B2
公开(公告)日：2017-01-10
申请号：US14647022
申请日：2013-10-15
发明人： ChulSoon Park , Inn Yeal Oh
CPC分类号： H03L7/24 , H03B15/006 , H03C3/00 , H03L1/00
摘要： A spin modulator with phase tuning means which comprises, a spin array which consists of m×n matrix spin-transfer torque oscillators, a selection control means which selectively operates the spin-transfer torque oscillators according to an operation condition of the spin array, and a phase tuning array which includes m×n matrix phase tuning means, wherein the m×n matrix phase tuning means tune a phase synchronization operation of the spin-transfer torque oscillators according to the operation condition.
摘要翻译： 一种具有相位调谐装置的自旋调制装置，包括由m×n矩阵旋转传递转矩振荡器组成的自旋阵列，根据旋转阵列的操作条件选择性地操作旋转传递转矩振荡器的选择控制装置，以及 包括m×n矩阵相位调谐装置的相位调谐阵列，其中，所述m×n矩阵相位调谐装置根据所述操作条件调整所述自旋传递转矩振荡器的相位同步运算。
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7.发明授权System and method for controlling radiated EMI using interleaved frequency switching 有权使用交错频率切换控制辐射EMI的系统和方法公开(公告)号：US09531349B2
公开(公告)日：2016-12-27
申请号：US14602939
申请日：2015-01-22
发明人： Alok Kumar Pugalia
CPC分类号： H03K3/013 , H03K19/00346 , H03L7/00 , H04B15/06
摘要： An apparatus includes a controller configured to be coupled to a system clock that generates a clock signal for a device that generates radiated electromagnetic interference (RE). The controller is also configured to determine a frequency span associated with the system clock, where the frequency span has a minimum frequency and a maximum frequency. The controller is further configured to determine a sequence of frequency steps, where each frequency step is associated with a distinct frequency within the frequency span. In addition, the controller is configured to control the system clock to change a frequency of the clock signal through the sequence of frequency steps in order to reduce the RE generated at or by the device. In some embodiments, the frequency steps are interleaved across the frequency span to avoid large frequency jumps. In some embodiments, the frequency step duration is optimally selected to reduce quasi peak values.
摘要翻译： 一种装置包括控制器，其被配置为耦合到产生辐射电磁干扰（RE）的装置的时钟信号的系统时钟。 控制器还被配置为确定与系统时钟相关联的频率跨度，其中频率跨度具有最小频率和最大频率。 控制器还被配置为确定频率步骤的序列，其中每个频率步长与频率范围内的不同频率相关联。 此外，控制器被配置为控制系统时钟以通过频率步长序列改变时钟信号的频率，以便减少在设备处或由设备产生的RE。 在一些实施例中，频率跨越频率跨度交错以避免大的频率跳跃。 在一些实施例中，最佳地选择频率步长以减少准峰值。
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公开(公告)号：US09391657B2
公开(公告)日：2016-07-12
申请号：US14560198
申请日：2014-12-04
发明人： Minoru Iwanaga
CPC分类号： H04B1/109 , H03H7/38 , H03H2007/386 , H04B1/0458
摘要： An antenna matching device includes an antenna terminal connected to an antenna and an RF terminal connected to an RF circuit. The antenna terminal and the RF terminal are connected to each other through a first transmission path only via an inductor. The antenna terminal and the RF terminal are connected to each other through a second transmission path only via an SPST switch. By switching between the open state and the closed state of the switch in accordance with the frequency of an RF signal, the first transmission channel or the second transmission channel is selected.
摘要翻译： 天线匹配装置包括连接到天线的天线端子和连接到RF电路的RF终端。 天线端子和RF端子仅通过电感器通过第一传输路径相互连接。 天线端子和RF端子仅通过SPST开关通过第二传输路径相互连接。 通过根据RF信号的频率切换开关的断开状态和关闭状态，选择第一传输信道或第二传输信道。
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9.发明授权Non-contact power supply transmitter system, receiving device, and analog circuit 有权非接触式电源发射系统，接收装置和模拟电路公开(公告)号：US09363118B2
公开(公告)日：2016-06-07
申请号：US14457494
申请日：2014-08-12
申请人： ROHM CO., LTD.
发明人： Takashi Noguchi , Tatsuya Iwasaki
CPC分类号： H04L27/12 , H03C3/00 , H03D3/00 , H04B5/0037 , H04B5/0075 , H04B5/0093 , H04L25/0268 , H04L27/14 , Y02D70/00
摘要： A non-contact power supply transmitter system 100 transmitting an electric power from a transmitting device (TX) 200 to a receiving device (RX) 300 with a non-contact power supply transmitter method, the TX 200 including: a transmitting coil 202; a driver 204 causing the transmitting coil 202 to generate a power signal of the electromagnetic field; and an FSK modulation unit 240 transmitting an FSK signal Sf through the transmitting coil 202, the RX 300 including: a receiving coil 302; an FSK demodulation unit 330 demodulating the FSK signal Sf received through the receiving coil 302; and a controller 312 inputting the FSK signal demodulated by the FSK demodulation unit 330, the FSK demodulation unit 330 is composed of an analog circuit. The non-contact power supply transmitter system, the receiving device, and the analog circuit can realize a low power, space-saving FSK communication.
摘要翻译： TX 200包括：发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202;发射线圈202; 驱动器204，使发送线圈202产生电磁场的功率信号; 以及通过发送线圈202发送FSK信号Sf的FSK调制单元240，RX 300包括：接收线圈302; 解调通过接收线圈302接收的FSK信号Sf的FSK解调单元330; 输入由FSK解调单元330解调的FSK信号的控制器312，FSK解调单元330由模拟电路构成。 非接触式电源发射机系统，接收设备和模拟电路可以实现低功耗，节省空间的FSK通信。
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10.发明授权Modulation method for improving signal conversion gain and high-gain modulator thereof 有权用于改善信号转换增益的调制方法及其高增益调制器公开(公告)号：US09319076B2
公开(公告)日：2016-04-19
申请号：US14559159
申请日：2014-12-03
发明人： Yi-Jan Chen , Li-Fan Tsai
CPC分类号： H03C3/00 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H04B1/04
摘要： A modulation method includes sampling the first input signal by using the first local oscillation signal and the second local oscillation signal to generate the first sampled signal, sampling the second input signal by using the third local oscillation signal and the fourth local oscillation signal to generate the second sampled signal, sampling the second input signal by using the first local oscillation signal and the second local oscillation signal to generate the third sampled signal, sampling the first input signal by using the third local oscillation signal and the fourth local oscillation signal to generate the fourth sampled signal, adding the first sampled signal and the second sampled signal to produce the first modulation signal, adding the third sampled signal and the fourth sampled signal to generate the second modulation signal, and adding the first modulation signal and the second modulation signal to generate an output signal.
摘要翻译： 调制方法包括利用第一本地振荡信号和第二本地振荡信号对第一输入信号进行采样，以产生第一采样信号，通过使用第三本地振荡信号和第四本地振荡信号对第二输入信号进行采样，以产生 第二采样信号，通过使用第一本地振荡信号和第二本地振荡信号对第二输入信号进行采样以产生第三采样信号，通过使用第三本地振荡信号和第四本地振荡信号对第一输入信号进行采样，以产生第 第四采样信号，将第一采样信号和第二采样信号相加以产生第一调制信号，将第三采样信号和第四采样信号相加以产生第二调制信号，并将第一调制信号和第二调制信号相加 产生输出信号。
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