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公开(公告)号：WO2016191386A1
公开(公告)日：2016-12-01
申请号：PCT/US2016/033813
申请日：2016-05-23
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SAEEDI, Saman , EMAMI, Azita
CPC classification number: G02F1/2257 , G02B6/00 , G02B6/12 , G02B6/122 , G02B6/293 , G02B2006/12159 , G02F1/0121 , G02F1/0147 , G02F1/025 , G02F2001/212 , G02F2201/06 , G02F2201/58 , G02F2203/15
Abstract: An optical signal modulator (modulator) includes, in part, a first multitude of diodes coupled in parallel and disposed along an outer periphery of the optical ring of the modulator, a second multitude of diodes coupled in parallel and disposed along the outer periphery of the optical ring, and a doped region adapted to supply heat to the optical ring. A pair of current sources supply substantially constant currents to the first and second multitude of diodes to generate a pair of electrical signals. The modulator further includes, in part, a control circuit adapted to control the temperature of the optical ring in accordance with the pair electrical signals. To achieve this, the control circuit varies the voltage applied to the doped region to vary the supplied heat. Alternatively, the control circuit applies a voltage to the optical ring to maintain a substantially constant resonant wavelength in the optical ring.
Abstract translation: 光信号调制器（调制器）部分地包括并联耦合并沿着调制器的光环的外周设置的第一多个二极管，第二多个二极管并联耦合并沿着该调制器的外周设置 光环，以及适于向光环供应热量的掺杂区域。 一对电流源向第一和第二多个二极管提供基本恒定的电流以产生一对电信号。 调制器还部分地包括控制电路，其适于根据该对电信号控制光环的温度。 为了实现这一点，控制电路改变施加到掺杂区域的电压以改变供应的热量。 或者，控制电路向光环施加电压以在光环中保持基本恒定的谐振波长。
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公开(公告)号：WO2021097211A1
公开(公告)日：2021-05-20
申请号：PCT/US2020/060420
申请日：2020-11-13
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SHARMA, Saransh , SHAPIRO, Mikhail , EMAMI, Azita
IPC: G01R33/385 , G01R33/38 , G01R33/00
Abstract: An apparatus for producing magnetic field gradients includes (a) a first planar electromagnet coil set configured to produce a first magnetic field gradient with respect to a first axis, (b) a second planar electromagnet coil set configured to produce a second magnetic field gradient with respect to a second axis that is orthogonal to the first axis, (c) a third planar electromagnet coil set configured to produce a third magnetic field gradient with respect to a third axis that is orthogonal to the first and second axes, and (d) a controller configured to selectively provide power to the first, second, and/or third electromagnet coil sets to sequentially produce a localization magnetic field gradient with respect to each of the first, second, and third axes, at least a portion of each localization magnetic field gradient having a monotonically-varying magnetic field magnitude along a respective axis.
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公开(公告)号：WO2018208401A1
公开(公告)日：2018-11-15
申请号：PCT/US2018/026705
申请日：2018-04-09
Inventor： RODGER, Damien C. , TAI, Yu-Chong , HUMAYUN, Mark S. , SHAPERO, Aubrey M. , AGARWAL, Abhinav , EMAMI, Azita
Abstract: A miniature, low power electronic pressure sensor with a first, oil-filled chamber to protect its microelectromechanical systems (MEMS) pressure sensitive membrane and a second chamber filled with saline or body fluids connected by tube into an organ in the body, such as an eyeball, that needs pressure sensing, is described. The tube carries pressure from a sensitive area within the organ to the electronic pressure sensor. The pressure sensor may communicate wirelessly with external readers and pass data to a server or other computer. Running alongside the tube is another tube for draining and pressure relief. The tubes, or cannulas, can share an opening into the organ in order to minimize the number of holes needed. The tubes may be molded into a single oval cross section, combined coaxially, or share a lumen for a portion that enters the wall of an organ so as to promote healing.
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公开(公告)号：WO2018172183A1
公开(公告)日：2018-09-27
申请号：PCT/EP2018/056540
申请日：2018-03-15
Inventor： TALKHOONCHEH, Arian Hashemi , EMAMI, Azita , ZHANG, Yi , ZILKIE, Aaron
Abstract: An optoelectronic device for quadrature-amplitude modulation (QAM) and a method of modulating light according to the same. The device comprising: an input waveguide; two intermediate waveguides, each coupled to the input waveguide via an input coupler; and an output waveguide, coupled to each of the intermediate waveguides via an output coupler; wherein each intermediate waveguide includes a modulating component connected in series with a phase shifting component, and each modulating component is connected to a respective electronic driver, the electronic drivers together being operable to produce a QAM-N modulated output from light entering the device from the input waveguide.
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公开(公告)号：WO2016149524A1
公开(公告)日：2016-09-22
申请号：PCT/US2016/022925
申请日：2016-03-17
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SAEEDI, Saman , EMAMI, Azita , HAJIMIRI, Seyed Ali , ABIRI, Behrooz
CPC classification number: G02F1/025 , G02F1/0118 , G02F1/0121 , G02F2202/105 , G02F2203/15
Abstract: An integrated optical modulator includes, in part, a pair of waveguides and an inductor. The first waveguide is adapted to receive an incoming optical signal. The second waveguide includes a portion placed in proximity of the first waveguide so as to enable the incoming optical signal travelling in the first waveguide to couple to the second waveguide. The second waveguide comprises a p-n junction. The inductor has a first terminal coupled to the p-n junction and a second terminal coupled to a contact pad. The second waveguide has a circular shape. The inductor optionally has a spiral shape.
Abstract translation: 集成光调制器部分地包括一对波导和电感器。 第一波导适于接收输入光信号。 第二波导包括放置在第一波导附近的部分，以使能在第一波导中行进的入射光信号耦合到第二波导。 第二波导包括p-n结。 电感器具有耦合到p-n结的第一端子和耦合到接触焊盘的第二端子。 第二波导具有圆形形状。 电感器可选地具有螺旋形状。
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Patent Agency Ranking
公开(公告)号：WO2021097222A1
公开(公告)日：2021-05-20
申请号：PCT/US2020/060433
申请日：2020-11-13
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SHARMA, Saransh , SHAPIRO, Mikhail , EMAMI, Azita
IPC: G01R33/385 , G01R33/38 , G01R33/00 , G01R33/36 , A61B5/00
Abstract: A method for in-vivo monitoring of a target internal volume of a mammal that includes: (a) placing the target internal volume proximal to a three-dimensional magnetic field generator; (b) generating first, second, and third magnetic field gradients along respective first, second, and third axes that are mutually orthogonal; (c) measuring first, second, and third magnetic fields with a three-dimensional magnetic sensor disposed in an ingestible capsule, the ingestible capsule disposed in the target internal volume; (d) with a controller in electrical communication with the three-dimensional magnetic sensor, generating a magnetic sensor output signal that encodes a measurement of the first, second, and third magnetic fields; (e) broadcasting the magnetic sensor output signal from an antenna disposed in the ingestible capsule, and (f) receiving the magnetic sensor output signal with a receiver. The received magnetic field data can be used to determine the three-dimensional position of the ingestible capsule.
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公开(公告)号：WO2018217952A1
公开(公告)日：2018-11-29
申请号：PCT/US2018/034228
申请日：2018-05-23
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SCHERER, Axel , PETILLO, Peter A. , CHEN, Samson , EMAMI, Azita
IPC: A01K1/03 , H04B1/16 , A01K5/01 , A01K5/02 , G01N27/30 , G01N27/327 , G01N27/333
Abstract: A smart cage includes radiofrequency transceivers and tags attached to laboratory animals. The tags include sensors to detect monitorable conditions of the laboratory animals. The sensors include working electrodes, counter electrodes, reference electrodes, and potentiostats. The top surface of the electrodes is coated with ionophores or enzymes which detect the monitorable conditions of the laboratory animals.
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公开(公告)号：WO2019245668A1
公开(公告)日：2019-12-26
申请号：PCT/US2019/031877
申请日：2019-05-10
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SHARMA, Saransh , AGARWAL, Abhinav , SHAPIRO, Mikhail , EMAMI, Azita
Abstract: A three dimensional magnetic sensor attached to a surgical nail is located based on an applied monotonic magnetic field gradient. Another three dimensional magnetic sensor locates a surgical drill. A display generates a real time image of the relative alignment of the surgical drill and of the surgical nail, allowing a surgeon to repair bone fractures.
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公开(公告)号：WO2018172183A9
公开(公告)日：2018-09-27
申请号：PCT/EP2018/056540
申请日：2018-03-15
Inventor： TALKHOONCHEH, Arian Hashemi , EMAMI, Azita , ZHANG, Yi , ZILKIE, Aaron
Abstract: An optoelectronic device for quadrature-amplitude modulation (QAM) and a method of modulating light according to the same. The device comprising: an input waveguide; two intermediate waveguides, each coupled to the input waveguide via an input coupler; and an output waveguide, coupled to each of the intermediate waveguides via an output coupler; wherein each intermediate waveguide includes a modulating component connected in series with a phase shifting component, and each modulating component is connected to a respective electronic driver, the electronic drivers together being operable to produce a QAM-N modulated output from light entering the device from the input waveguide.
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公开(公告)号：WO2016149289A1
公开(公告)日：2016-09-22
申请号：PCT/US2016/022504
申请日：2016-03-15
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： SAEEDI, Saman , ABIRI, Behrooz , EMAMI, Azita , HAJIMIRI, Seyed Ali
CPC classification number: G02F1/025 , G02F2203/50 , H04B10/541
Abstract: A differential optical modulator includes, in part, a splitter splitting an incoming optical signal into first and second input signals, a first variable coupler generating a first differential output signal in response to the first input signal, and a second variable coupler generating a second differential output signal in response to the second input signal. The first variable coupler includes, in part, first and second couplers and a phase shifter disposed therebetween. The first coupler generates a pair of internal signals in response to the first input signal. The second coupler generates the first differential output signal. The second variable coupler includes, in part, third and fourth couplers and a phase shifter disposed therebetween. The third coupler generates a pair of internal signals in response to the second input signal. The fourth coupler generates the second differential output signal.
Abstract translation: 差分光调制器部分地包括将入射光信号分为第一和第二输入信号的分路器，响应于第一输入信号产生第一差分输出信号的第一可变耦合器，以及产生第二差分 响应于第二输入信号的输出信号。 第一可变耦合器部分地包括第一和第二耦合器以及设置在它们之间的移相器。 第一耦合器响应于第一输入信号产生一对内部信号。 第二耦合器产生第一差分输出信号。 第二可变耦合器部分地包括第三和第四耦合器以及设置在它们之间的移相器。 第三耦合器响应于第二输入信号产生一对内部信号。 第四耦合器产生第二差分输出信号。
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