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公开(公告)号：US20190260237A1
公开(公告)日：2019-08-22
申请号：US16109591
申请日：2018-08-22
Applicant: California Institute of Technology
Inventor： Florian BOHN , Behrooz Abiri , Seyed Ali Hajimiri
Abstract: A method of generating a DC power from incident RF waves, includes, in part, measuring the amount of power being received by a device generating the DC power, and controlling the phases of the RF waves being transmitted by a multitude of RF transmitters in accordance with the measured power. A programmable test load is optionally used at the device to measure the received power. The device optionally includes, an antenna, an RF-to-DC converter to generate the DC power, an impedance matching/transformation circuit, and an RF load/matching circuit.
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公开(公告)号：US10320242B2
公开(公告)日：2019-06-11
申请号：US14552414
申请日：2014-11-24
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Florian Bohn , Behrooz Abiri
Abstract: An RF signal generator wirelessly transferring power to a wireless device includes, in part, a multitude of generating elements generating a multitude of RF signals transmitted by a multitude of antennas, a wireless signal receiver, and a control unit controlling the phases and/or amplitudes of the RF signals in accordance with a signal received by the receiver. The signal received by the receiver includes, in part, information representative of the amount of RF power the first wireless device receives. The RF signal generator further includes, in part, a detector detecting an RF signal caused by scattering or reflection of the RF signal transmitted by the antennas. The control unit further controls the phase and/or amplitude of the RF signals in accordance with the signal detected by the detector.
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公开(公告)号：US20190044390A1
公开(公告)日：2019-02-07
申请号：US16143332
申请日：2018-09-26
Applicant: California Institute of Technology
Inventor： Seyed Ali Hajimiri , Florian Bohn , Behrooz Abiri
CPC classification number: H02J50/23 , H01Q21/225 , H02J7/025 , H02J50/40 , H02J50/60 , H02J50/80 , H02J50/90
Abstract: An RF signal generator wirelessly transferring power to a wireless device includes, in part, a multitude of generating elements generating a multitude of RF signals transmitted by a multitude of antennas, a wireless signal receiver, and a control unit controlling the phases and/or amplitudes of the RF signals in accordance with a signal received by the receiver. The signal received by the receiver includes, in part, information representative of the amount of RF power the first wireless device receives. The RF signal generator further includes, in part, a detector detecting an RF signal caused by scattering or reflection of the RF signal transmitted by the antennas. The control unit further controls the phase and/or amplitude of the RF signals in accordance with the signal detected by the detector.
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54.发明申请公开(公告)号：US20180076820A1
公开(公告)日：2018-03-15
申请号：US15701981
申请日：2017-09-12
Applicant: California Institute of Technology
Inventor： Behrooz Abiri , Seyed Ali Hajimiri
CPC classification number: H03L7/0812 , H02M3/07 , H03K5/01 , H03K2005/00019 , H03L7/0995 , H03L7/0996
Abstract: A delay generation circuit includes a modulator and a delay-locked loop. The delay-locked loop includes a delay line configured to be responsive to a phase difference between a first clock signal and one of a multitude of output signals of the delay line. The delay generation circuit is configured to select one of the multitude of output signals of the delay line in response to the modulator.
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公开(公告)号：US20170063460A1
公开(公告)日：2017-03-02
申请号：US14489354
申请日：2014-09-17
Applicant: California Institute of Technology
Inventor： Seyed Ali HAJIMIRI , Firooz Aflatouni , Behrooz Abiri
IPC: H04B10/25 , H04B10/516
CPC classification number: H04B10/2504 , H04B10/00 , H04B10/516 , H04B2210/006
Abstract: An electro-optical circuit, includes in part, a modulator, a signal splitter, N signal paths each having one or more signal processing components, N photo-diodes and a signal combiner. The modulator modulates an optical signal using an electrical input signal. The splitter splits the modulated optical signal into N optical signals each delivered to a different one of the N paths for processing by the associated signal processing component(s). Each photo-diode converts an optical signal it receives from its associated optical signal processing component(s) to a current signal. The signal combiner combines the N current signals it receives from the N photo-diodes to generate an output current signal. The signal processing component(s) may be a variable optical delay component, a variable optical gain/attenuation component, or both thus enabling the output current signal to represent a filtered version of the electrical input signal.
Abstract translation: 电光电路部分地包括调制器，信号分离器，每个具有一个或多个信号处理组件的N个信号路径，N个光电二极管和信号组合器。 调制器使用电输入信号调制光信号。 分离器将调制的光信号分离成N个光信号，每个光信号被递送到N个路径中的不同的一个，用于由相关联的信号处理组件进行处理。 每个光电二极管将其从相关联的光信号处理组件接收的光信号转换为电流信号。 信号组合器组合从N个光电二极管接收的N个电流信号以产生输出电流信号。 信号处理组件可以是可变光学延迟分量，可变光学增益/衰减分量，或两者都使得输出电流信号能够表示电输入信号的滤波版本。
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Patent Agency Ranking
公开(公告)号：US20160191170A1
公开(公告)日：2016-06-30
申请号：US14812267
申请日：2015-07-29
Applicant: California Institute of Technology
Inventor： Firooz AFLATOUNI , Behrooz Abiri , Seyed Ali Hajmiri
IPC: H04B10/548 , H04B10/50 , H04B10/25
CPC classification number: H04B10/548 , G02F1/2955 , H04B10/2504 , H04B10/501 , H04B10/50577 , H04B10/60
Abstract: An integrated optical phased array includes an input channel receiving an optical input signal, and a multitude of signal processing channels each adapted to supply an associated optical output signal along a first axis in response to the input signal. Each signal processing channel includes, in part, a phase modulator adapted to modulate the phase of the signal travelling through the channel, thereby to control or steer the output signal of the phased array. Each channel optionally includes first and second photo detection circuits respectively generating first and second detection signals. The first and second detection signals in each channel may be used to modulate the amplitude and/or phase of the output signal of that channel thereby to control and steer the output signal of the phased array.
Abstract translation: 集成的光学相控阵列包括接收光输入信号的输入通道和多个信号处理通道，每个信号处理通道适于响应输入信号沿第一轴提供相关的光输出信号。 每个信号处理通道部分地包括相位调制器，其适于调制通过通道传播的信号的相位，从而控制或引导相控阵列的输出信号。 每个通道可选地包括分别产生第一和第二检测信号的第一和第二光电检测电路。 每个通道中的第一和第二检测信号可以用于调制该通道的输出信号的幅度和/或相位，从而控制和引导相控阵列的输出信号。
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公开(公告)号：US20150331193A1
公开(公告)日：2015-11-19
申请号：US14716735
申请日：2015-05-19
Applicant: California Institute of Technology
Inventor： Behrooz Abiri , Seyed Ali Hajimiri , Firooz Aflatouni , Andy Zhou
IPC: G02B6/28 , H01L31/105 , G02B6/293
CPC classification number: H04B10/671 , G02B6/2861 , G02B6/2935 , G02B6/29352
Abstract: A self-equalizing photo-detector (SEPD) includes, in part, a multitude of optical splitters and photo detectors, and at least one optical delay element. The first optical splitter splits an optical signal into second and third optical signals. The optical delay element delays the second optical signal to generate a fourth optical signal. The second optical splitter splits a signal representative of the fourth optical signal to generate fifth and sixth optical signals. The first photo detector receives the third optical signal via a first optical path, has an anode terminal coupled to an output terminal of the detector and a cathode terminal coupled to a first supply voltage. The second photo detector receives the sixth optical signal via a second optical path, has an anode terminal coupled to a second supply voltage and a cathode terminal coupled to the output terminal of the detector.
Abstract translation: 自平衡光检测器（SEPD）部分包括多个光分路器和光电检测器以及至少一个光延迟元件。 第一光分路器将光信号分离成第二和第三光信号。 光延迟元件延迟第二光信号以产生第四光信号。 第二光分路器分离代表第四光信号的信号以产生第五和第六光信号。 第一光电检测器经由第一光路接收第三光信号，具有耦合到检测器的输出端的阳极端子和耦合到第一电源电压的阴极端子。 第二光电检测器经由第二光路接收第六光信号，具有耦合到第二电源电压的阳极端子和耦合到检测器的输出端子的阴极端子。
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公开(公告)号：US09081252B2
公开(公告)日：2015-07-14
申请号：US13770980
申请日：2013-02-19
Applicant: California Institute of Technology
Inventor： Firooz Aflatouni , Behrooz Abiri , Seyed Ali Hajimiri
Abstract: An optical phased array includes, in part, a multitude of optical signal emitters and a multitude of optical signal phase/delay elements each associated with and disposed between a different pair of the optical signal emitters. Each optical signal phase/delay element is adapted to cause a phase/delay shift between the optical signals emitted from its associated pair of optical signal emitters. Each optical signal phase/delay element is optically a ring resonator that includes a p-i-n junction. By varying the bias applied to the p-i-n junction, the phase/delay generated by the ring resonator is varied. Furthermore, each optical signal emitter is optionally an optical grating having a multitude of grooves. The groove lengths of the optical gratings are optionally selected so as to increase along the direction of travel of the input optical signal through the optical phase array.
Abstract translation: 光相位阵列部分地包括多个光信号发射器和多个光信号相位/延迟元件，每个光信号相位/延迟元件与不同的一对光信号发射器相关联并设置在不同的光信号发射器对之间。 每个光信号相位/延迟元件适于在从其相关联的光信号发射器对发射的光信号之间引起相位/延迟偏移。 每个光信号相位/延迟元件是光学上包括p-i-n结的环形谐振器。 通过改变施加到p-i-n结的偏置，环形谐振器产生的相位/延迟是变化的。 此外，每个光信号发射器可选地是具有多个凹槽的光栅。 可选地选择光栅的槽长度，以沿着输入光信号通过光相阵列的行进方向增加。
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公开(公告)号：US20150130293A1
公开(公告)日：2015-05-14
申请号：US14552414
申请日：2014-11-24
Applicant: California Institute of Technology
Inventor： Seyed Ali HAJIMIRI , Florian Bohn , Behrooz Abiri
Abstract: An RF signal generator wirelessly transferring power to a wireless device includes, in part, a multitude of generating elements generating a multitude of RF signals transmitted by a multitude of antennas, a wireless signal receiver, and a control unit controlling the phases and/or amplitudes of the RF signals in accordance with a signal received by the receiver. The signal received by the receiver includes, in part, information representative of the amount of RF power the first wireless device receives. The RF signal generator further includes, in part, a detector detecting an RF signal caused by scattering or reflection of the RF signal transmitted by the antennas. The control unit further controls the phase and/or amplitude of the RF signals in accordance with the signal detected by the detector.
Abstract translation: 无线传输功率到无线设备的RF信号发生器部分地包括产生由多个天线发射的大量RF信号的多个发生元件，无线信号接收机和控制相位和/或幅度的控制单元 的RF信号根据接收机接收到的信号。 由接收机接收的信号部分地包括表示第一无线设备接收的RF功率量的信息。 RF信号发生器还部分地包括检测由天线发射的RF信号的散射或反射引起的RF信号的检测器。 控制单元还根据检测器检测到的信号进一步控制RF信号的相位和/或幅度。
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公开(公告)号：US20140071249A1
公开(公告)日：2014-03-13
申请号：US14027119
申请日：2013-09-13
Applicant: California Institute of Technology
Inventor： Firooz AFLATOUNI , Behrooz Abiri , Seyed Ali Hajimiri
IPC: H04N13/02
CPC classification number: H04N13/211 , H04N13/207 , H04N13/254 , H04N13/271
Abstract: A camera includes, in part, an optical signal source generating a frequency varying optical signal, a multitude of pixels arranged along rows and columns, an optical focusing element, and an opto-electronic circuit. A portion of the optical signal generated by the optical signal is caused to reflect from a target object and then directed toward the pixels. A multitude of samples of a second portion of the optical signal are combined with the signals received by the pixels to generate a multitude of combined optical signals. The optical signals so combined are converted to electrical signals. Each electrical signal has a frequency defined by a difference between a frequency of the second portion of the optical signal and a frequency of a signal received from a pixel. The frequency differences are used to form an image of the target object.
Abstract translation: 相机部分地包括产生频率变化的光信号的光信号源，沿着行和列排列的多个像素，光聚焦元件和光电子电路。 使由光信号产生的光信号的一部分从目标物体反射，然后指向像素。 光信号的第二部分的多个样本与由像素接收的信号组合以产生多个组合光信号。 如此组合的光信号被转换成电信号。 每个电信号具有由光信号的第二部分的频率与从像素接收的信号的频率之间的差定义的频率。 使用频率差来形成目标对象的图像。
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