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11.发明授权公开(公告)号：US10466227B2
公开(公告)日：2019-11-05
申请号：US15882281
申请日：2018-01-29
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Mikhail Shapiro , Azita Emami , Manuel Alejandro Monge Osorio
IPC: G01N33/46 , G01R17/00 , G01R33/07 , A61B5/00 , A61B5/04 , A61B5/07 , A61B5/1459 , G01N33/483 , H04B1/40 , G01R33/12 , A61B5/05
Abstract: Methods and apparatuses for sensing biological functions are disclosed. Sensors can be implanted in an organ, such as the brain, and a magnetic field gradient applied to the biological tissue. The field causes the sensors to have different resonant frequencies allowing their spatial localization. The sensors can harvest power from the external coils to be able to retransmit data.
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公开(公告)号：US09636656B2
公开(公告)日：2017-05-02
申请号：US14362888
申请日：2012-12-07
Inventor： Dennis A. Dougherty , Robert H. Grubbs , Mark Humayun , Clinton J. Regan , Azita Emami
IPC: A61K41/00 , A61K49/00 , B01J19/12 , A61K9/00 , A61K47/48 , A61N5/06 , C07C59/66 , C07D209/12 , C07D209/20
CPC classification number: B01J19/122 , A61K9/0085 , A61K41/0042 , A61K47/54 , A61K47/545 , A61K47/64 , A61K49/0021 , A61K49/0032 , A61K49/0052 , A61K49/0056 , A61N5/062 , A61N2005/0659 , C07C59/66 , C07D209/12 , C07D209/20
Abstract: Methods are described and related devices, compositions, and systems, in which a caged compound is administered to a biological environment, the caged compound being caged with a long wavelength absorber, the long wavelength being a wavelength greater than or equal to 750 nm; and irradiating the biological environment to excite the long wavelength absorber with light at a wavelength in a range from 900-1100 nm, thus decaging the compound.
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公开(公告)号：US20160079966A1
公开(公告)日：2016-03-17
申请号：US14944925
申请日：2015-11-18
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Mayank Raj , Azita Emami
IPC: H03K3/03
CPC classification number: H03K3/0315 , H03B27/00 , H03B2201/038 , H03L7/0995 , H03L7/24
Abstract: Technologies are generally described for quadrature-based injection-locking offing oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.
Abstract translation: 技术通常描述为基于正交的注射锁定振荡器。 在一些示例中，外部信号可以被注入到环形振荡器中。 相位信号可以从环形振荡器内测量，并用于确定表征外部信号和环形振荡器固有频率之间的频率差的均方根误差（MQE）。 然后可以从MQE生成控制信号，并用于调整环形振荡器固有频率以减小环形振荡器固有频率与外部信号之间的差异。
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公开(公告)号：US20150137895A1
公开(公告)日：2015-05-21
申请号：US14479269
申请日：2014-09-05
Applicant: California Institute of Technology
Inventor： Mayank Raj , Azita Emami
IPC: H03L7/099
CPC classification number: H03K3/0315 , H03B27/00 , H03B2201/038 , H03L7/0995 , H03L7/24
Abstract: Technologies are generally described for quadrature-based injection-locking of ring oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.
Abstract translation: 技术通常被描述为用于环形振荡器的正交注入锁定。 在一些示例中，外部信号可以被注入到环形振荡器中。 相位信号可以从环形振荡器内测量，并用于确定表征外部信号和环形振荡器固有频率之间的频率差的均方根误差（MQE）。 然后可以从MQE生成控制信号，并用于调整环形振荡器固有频率以减小环形振荡器固有频率与外部信号之间的差异。
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公开(公告)号：US11701504B2
公开(公告)日：2023-07-18
申请号：US17150986
申请日：2021-01-15
Inventor： Yu-Chong Tai , Aubrey M. Shapero , Shane S. Shahrestani , Azita Emami , Abhinav Agarwal , Kuang-Ming Shang , Sunghoon Kim , Olajire Idowu , Kurtis I. Auguste
IPC: A61M27/00
CPC classification number: A61M27/006 , A61M2205/3344 , A61M2205/3368 , A61M2205/3523 , A61M2205/50 , A61M2207/00
Abstract: A long-lasting, wireless, biocompatible pressure sensor device is integrated within a hydrocephalus shunt, either within the shunt's reservoir/anchor or as an inline or pigtailed connector. When integrated within a typical reservoir, the device can sit within the reservoir's hollow frustum area covered by the resilient silicone dome of the reservoir. When integrated as an inline connector, the device can sit at any point on the peritoneal catheter or ventricular catheter, including between the VP shut's valve and reservoir. The pressure sensor device includes electronics that can be powered wirelessly by a reader held to a patient's scalp, and so no battery may be required. The reader can transmit an ambient, atmospheric pressure reading from outside the skull to the implanted device so that its electronics can calculate a calibrated gauge pressure internally and then relay it to a patient's smart phone.
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Patent Agency Ranking
公开(公告)号：US20230224046A1
公开(公告)日：2023-07-13
申请号：US18151996
申请日：2023-01-09
Applicant: The Boeing Company , California Institute of Technology
Inventor： Jeffrey H. Hunt , Fatemeh Aghlmand , Azita Emami
IPC: H04B10/61
CPC classification number: H04B10/6164 , H04B10/6165
Abstract: An adaptive receiver comprising a current buffer, an inverter that receives input from the current buffer, an average current control loop that feeds back from the inverter to the current buffer, a variable gain circuit that receives input from the inverter, a differential voltage amplifier that receives input from the variable gain circuit, an automatic gain control loop that feeds back from the differential voltage amplifier to the inverter and variable gain circuit, and a differential buffer that receives input from the differential amplifier.
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公开(公告)号：US20230224044A1
公开(公告)日：2023-07-13
申请号：US18151970
申请日：2023-01-09
Applicant: The Boeing Company , California Institute of Technology
Inventor： Jeffrey H. Hunt , Fatemeh Aghlmand , Azita Emami
CPC classification number: H04B10/616 , H04B10/27
Abstract: A method communicates data with a platform. A platform receives modulated coherent optical signals modulated using radio frequency signals encoding sensor data and generates an input current in response to receiving the modulated coherent optical signals at a receiver system in the platform. The platform recovers the radio frequency signals from the input current in a manner that adjusts for changes in the modulated coherent optical signals caused by variations in received optical intensity occurring during propagation of the modulated coherent optical signals. The platform outputs the radio frequency signals encoding the data.
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公开(公告)号：US20210220627A1
公开(公告)日：2021-07-22
申请号：US17150986
申请日：2021-01-15
Inventor： Yu-Chong Tai , Aubrey M. Shapero , Shane S. Shahrestani , Azita Emami , Abhinav Agarwal , Kuang-Ming Shang , Sunghoon Kim , Olajire Idowu , Kurtis I. Auguste
IPC: A61M27/00
Abstract: A long-lasting, wireless, biocompatible pressure sensor device is integrated within a hydrocephalus shunt, either within the shunt's reservoir/anchor or as an inline or pigtailed connector. When integrated within a typical reservoir, the device can sit within the reservoir's hollow frustum area covered by the resilient silicone dome of the reservoir. When integrated as an inline connector, the device can sit at any point on the peritoneal catheter or ventricular catheter, including between the VP shut's valve and reservoir. The pressure sensor device includes electronics that can be powered wirelessly by a reader held to a patient's scalp, and so no battery may be required. The reader can transmit an ambient, atmospheric pressure reading from outside the skull to the implanted device so that its electronics can calculate a calibrated gauge pressure internally and then relay it to a patient's smart phone.
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公开(公告)号：US20180325373A1
公开(公告)日：2018-11-15
申请号：US15948187
申请日：2018-04-09
Inventor： Damien C. Rodger , Yu-Chong Tai , Mark S. Humayun , Aubrey M. Shapero , Abhinav Agarwal , Azita Emami
CPC classification number: A61B3/16 , A61B2562/0247 , A61B2562/166 , A61B2562/168 , A61M1/008 , A61M2205/04 , A61M2210/0612
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：US09473115B2
公开(公告)日：2016-10-18
申请号：US14944925
申请日：2015-11-18
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Mayank Raj , Azita Emami
CPC classification number: H03K3/0315 , H03B27/00 , H03B2201/038 , H03L7/0995 , H03L7/24
Abstract: Technologies are generally described for quadrature-based injection-locking of ring oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.
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