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    Latency free data encryption and decryption between processor and memory
    2.
    发明授权
    Latency free data encryption and decryption between processor and memory 有权

    公开(公告)号：US11636046B1

    公开(公告)日：2023-04-25

    申请号：US16685600

    申请日：2019-11-15

    申请人： The Charles Stark Draper Laboratory, Inc.

    发明人： Nhut Tran ,  J. Ryan Prince ,  Martin Klingensmith

    IPC分类号： G06F12/14 ,  G06F21/60 ,  H04L9/08 ,  G06F21/78

    摘要： An embodiment is directed to a hardware circuit for encrypting and/or decrypting data transmitted between a processor and a memory. The circuit is situated between the processor and memory. The circuit includes a first interface communicatively coupled to the processor via a set of buses. The circuit also includes a second interface communicatively coupled to the memory. The circuit further includes hardware logic capable of executing an encryption operation on data transmitted between the processor and memory, without adding latency to data transmission speed between the processor and the memory. The hardware logic is configured to encrypt data received at the first interface from the processor, and transmit the encrypted data to the memory via the second interface. The hardware logic is also configured to decrypt data received at the second interface from the memory, and transmit the decrypted data to the processor via the first interface.

    ELECTROMAGNETIC GRADIOMETERS
    3.
    发明申请
    ELECTROMAGNETIC GRADIOMETERS 有权

    公开(公告)号：US20230097313A1

    公开(公告)日：2023-03-30

    申请号：US17990220

    申请日：2022-11-18

    申请人： THE CHARLES STARK DRAPER LABORATORY, INC.

    发明人： James A. BICKFORD

    IPC分类号： G01R33/022 ,  G01R33/038 ,  G01R33/00 ,  G01R33/028

    摘要： An electromagnetic gradiometer that includes multiple torsionally operated MEMS-based magnetic and/or electric field sensors with control electronics configured to provide magnetic and/or electric field gradient measurements. In one example a magnetic gradiometer includes a first torsionally operated MEMS magnetic sensor having a capacitive read-out configured to provide a first measurement of a received magnetic field, a second torsionally operated MEMS magnetic sensor coupled to the first torsionally operated MEMS magnetic sensor and having the capacitive read-out configured to provide a second measurement of the received magnetic field, and control electronics coupled to the first and second torsionally operated MEMS magnetic sensors and configured to determine a magnetic field gradient of the received magnetic field based the first and second measurements from the first and second torsionally operated MEMS electromagnetic sensors.

    Monostatic LiDAR transceiver system
    8.
    发明授权
    Monostatic LiDAR transceiver system 有权

    公开(公告)号：US11550037B2

    公开(公告)日：2023-01-10

    申请号：US16864669

    申请日：2020-05-01

    申请人： The Charles Stark Draper Laboratory, Inc.

    发明人： Michael G. Moebius ,  Lucas D. Benney ,  Steven J. Spector ,  Steven J. Byrnes

    IPC分类号： G01S7/481 ,  G01S7/499 ,  G01S17/02

    摘要： A LiDAR system includes a light source and an arrayed micro-optic configured to receive light from the light source so as to produce and project a two-dimensional array of light spots on a scene. The LiDAR system also includes receiver optics having an array of optical detection sites configured so as to be suitable for establishing a one-to-one correspondence between light spots in the two-dimensional array and optical detection sites in the receiver optics. The LiDAR system further includes a birefringent prism and a lens. The LiDAR system may also include a mask placed in the light path between the birefringent prism and the receiver optics. Alternatively, the LiDAR system may include a controller programmed to activate or deactivate each optical detection site.

    Architectures and Methods for Electrochemical Neuromodulation
    10.
    发明申请
    Architectures and Methods for Electrochemical Neuromodulation 有权

    公开(公告)号：US20220381723A1

    公开(公告)日：2022-12-01

    申请号：US17741921

    申请日：2022-05-11

    申请人： Massachusetts Institute of Technology ,  Charles Stark Draper Laboratory, Inc.

    发明人： Jongyoon Han ,  Daniel Freeman ,  Matthew Flavin

    IPC分类号： G01N27/333

    摘要： A prosthetic device includes a closed loop system for maintaining a predetermined concentration of a target ion in a region in proximity to a cell, such as a nerve cell. The device includes a controller and an ion-selective electrode assembly operatively connected to the controller, wherein the ion-selective electrode configuration is configured to sense the concentration of the target ion by potentiometric measurement and to convey the concentration to the controller. The controller is configured to modulate the current to the ion-selective electrode assembly based on the concentration of the target ion to control the concentration of the target ion so as to maintain the predetermined concentration of the target ion.