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1.发明申请公开(公告)号：US20160268832A1
公开(公告)日：2016-09-15
申请号：US14911599
申请日：2014-11-19
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Rui Jin
CPC classification number: H02J50/12 , H02J5/005 , H02J7/0027 , H02J7/0054 , H02J7/025 , H02J7/045 , H02J50/10 , H02J50/40 , H03F3/19 , H03F3/2176 , H03F2200/451 , H04B1/3883
Abstract: Wireless charging of portable electronic devices is carried out by detecting load variations caused by the device and dynamically compensating for these variations during charging to increase system efficiency and regulate delivered power. In some embodiments, load variations are tracked by comparing a feedback signal to a value range and determining whether the feedback value is higher than, lower than, or within the range of values. This information is then used to modify one or more parameters associated with a power amplifier in a transmitter device.
Abstract translation: 便携式电子设备的无线充电是通过检测由装置引起的负载变化并在充电期间动态地补偿这些变化来提高系统效率并调节输送功率来进行的。 在一些实施例中，通过将反馈信号与值范围进行比较并确定反馈值是否高于，低于或在该范围内来跟踪负载变化。 然后该信息用于修改与发射机设备中的功率放大器相关联的一个或多个参数。
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公开(公告)号：US10608780B2
公开(公告)日：2020-03-31
申请号：US15423445
申请日：2017-02-02
Applicant: Massachusetts Institute of Technology
Inventor： Georgios Angelopoulos , Muriel Medard , Anantha Chandrakasan
Abstract: Efficient and reliable transmission of information from sparse sources over wireless channels in wireless signal networks (WSNs). WSN nodes employ an “integrated signal representation-to-modulation” scheme to describe a sparse signal acquired from a sensor so as to ensure robustness against channel errors across a wide range of signal to noise (SNR) values in a rateless fashion. In one example, sparse signal samples are linearly transformed such that the total number of bits representing the sparse signal is reduced. The linearly-transformed signal samples are directly mapped to a modulation constellation to provide a succession of modulation symbols. A carrier wave is modulated in phase and/or frequency according to the succession of the modulation symbols to generate an encoded carrier wave representing the sparse analog signal. In one aspect, an order of the modulation constellation is based on the precision (e.g., number of bits) of each of the linearly-transformed signal samples.
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公开(公告)号：US20190253396A1
公开(公告)日：2019-08-15
申请号：US16273813
申请日：2019-02-12
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Chiraag Juvekar , Utsav Banerjee
CPC classification number: H04L63/0428 , G06F21/602 , H04L9/0643 , H04L9/0816 , H04L9/3239 , H04L9/3268 , H04L63/0823 , H04L67/42
Abstract: Systems and methods for implementing confidential communications between nodes of a network provide reduced power consumption, require less memory, and provide improved security, relative to previously-known systems and method. Preferred embodiments implement protocol functions in hardware, as opposed to software, to yield some or all of the foregoing improvements. Some embodiments use a hashing circuit for multiple purposes, while maintaining its ability to compute successive intermediate hash values. Some embodiments improve security of systems using circuits configured to leverage a favorable data format.
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4.发明公开公开(公告)号：US20240104583A1
公开(公告)日：2024-03-28
申请号：US18358271
申请日：2023-07-25
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Benedetto Marelli , Hui Sun , Saurav Maji
IPC: G06Q30/018 , G06Q50/02 , H04L9/32
CPC classification number: G06Q30/0185 , G06Q50/02 , H04L9/3278
Abstract: Compositions are provided that include a first product with a physical unclonable function (PUF) tag including silk particles conformably and directly attached to the first product, wherein the PUF tag cannot be reattached to a second product once removed from the first product.
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公开(公告)号：US10164472B2
公开(公告)日：2018-12-25
申请号：US14911599
申请日：2014-11-19
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Rui Jin
IPC: H01F27/42 , H01F37/00 , H01F38/00 , H02J50/12 , H02J50/40 , H02J5/00 , H02J50/10 , H02J7/00 , H02J7/04 , H03F3/19 , H03F3/217 , H04B1/3883
Abstract: Wireless charging of portable electronic devices is carried out by detecting load variations caused by the device and dynamically compensating for these variations during charging to increase system efficiency and regulate delivered power. In some embodiments, load variations are tracked by comparing a feedback signal to a value range and determining whether the feedback value is higher than, lower than, or within the range of values. This information is then used to modify one or more parameters associated with a power amplifier in a transmitter device.
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Patent Agency Ranking
公开(公告)号：US20250114523A1
公开(公告)日：2025-04-10
申请号：US18727623
申请日：2022-11-23
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Carlo Giovanni Traverso , Hen Wei Huang , SeungHo Lee , Saurav Maji , Peter Chai , Tom Kerssemakers , Ian Ballinger
Abstract: A device configured to be implanted in a subject includes a sensing module, a therapeutic module, and a battery. The sensing module includes at least two of an accelerometer, an electrocardiogram (ECG) sensor, a photoplethysmogram (PPG) sensor, and a temperature sensor. The therapeutic module includes a drug reservoir and a reciprocating pump. The battery powers the sensing module and the therapeutic module. The sensing module is configured to detect a biological event in the subject and, upon detection of the biological event, send a signal to the therapeutic module. The therapeutic module is configured to receive the signal from the sensing module and, upon receiving the signal, administer a drug to the subject from the drug reservoir via the pump.
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公开(公告)号：US12179942B2
公开(公告)日：2024-12-31
申请号：US18558021
申请日：2022-05-03
Applicant: Massachusetts Institute of Technology
Inventor： Kerri Cahoy , Christian Haughwout , Paul Serra , Ruonan Han , Anantha Chandrakasan
Abstract: Femto-satellites are very small satellites that can be deployed in constellations from a larger mothership satellite for distributed measurement. They are too small to accommodate the GNSS receivers that many satellites use for navigation, but they can be located with an electromagnetic beam from the mothership satellite. The mothership satellite scans this beam across a constellation of femto-satellites. When the beam scans across a particular femto-satellite, the femto-satellite transmits an acknowledgement to the mothership satellite, e.g., by retroreflecting the beam or via a separate radio link. The beam can be modulated with commands for the femto-satellite, such as to make a measurement or transmit previously acquired data, as well with commands for determining the femto-satellite's location, such as a time stamp or beam pointing information. The femto-satellite can determine its location from the information modulated onto the beam or transmit the time stamp to the mothership satellite for localization.
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公开(公告)号：US11070362B2
公开(公告)日：2021-07-20
申请号：US16273813
申请日：2019-02-12
Applicant: Massachusetts Institute of Technology
Inventor： Anantha Chandrakasan , Chiraag Juvekar , Utsav Banerjee
Abstract: Systems and methods for implementing confidential communications between nodes of a network provide reduced power consumption, require less memory, and provide improved security, relative to previously-known systems and method. Preferred embodiments implement protocol functions in hardware, as opposed to software, to yield some or all of the foregoing improvements. Some embodiments use a hashing circuit for multiple purposes, while maintaining its ability to compute successive intermediate hash values. Some embodiments improve security of systems using circuits configured to leverage a favorable data format.
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公开(公告)号：US20180326212A1
公开(公告)日：2018-11-15
申请号：US16036382
申请日：2018-07-16
Inventor： Marcus Yip , Anantha Chandrakasan , Konstantina Stankovic
CPC classification number: A61N1/36036 , A61B5/1114 , A61B5/6878 , A61B2560/0219 , A61B2562/0204 , A61N1/025 , A61N1/378
Abstract: The disclosure features systems for providing auditory signals to a subject. The systems include a sensor front-end circuit configured to be connected to an acoustic sensor and to convert analog signals received from the acoustic sensor to digital electric signals. The systems further include a sound processor circuit configured to be connected to the sensor front-end circuit and receive the electric signals provided by the sensor front end circuit. The sound processor includes multiple filters that spectrally decompose the received electrical signals into multiple spectral channels during operation of the system. The multiple spectral channels include at least a low frequency channel and a high frequency channel and the sound processor circuit is configured to operate the low frequency channel at a sample rate lower than a sample rate of the high frequency channel.
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公开(公告)号：US10022542B2
公开(公告)日：2018-07-17
申请号：US15037782
申请日：2014-11-25
Inventor： Marcus Yip , Anantha Chandrakasan , Konstantina Stankovic
Abstract: In one aspect, the disclosure features systems for providing auditory signals to a subject. The systems include a sensor front-end circuit configured to be connected to an acoustic sensor and to convert analog signals received from the acoustic sensor to digital electric signals. The systems further include a sound processor circuit configured to be connected to the sensor front-end circuit and receive the electric signals provided by the sensor front end circuit. The sound processor includes multiple filters that spectrally decompose the received electrical signals into multiple spectral channels during operation of the system. The multiple spectral channels include at least a low frequency channel and a high frequency channel and the sound processor circuit is configured to operate the low frequency channel at a sample rate lower than a sample rate of the high frequency channel.
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