知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

11 records (took 0.021 seconds)

    PHOTONIC DEVICE, A PHOTONIC SYSTEM COMPRISING THE PHOTONIC DEVICE AND A METHOD OF SPECTROSCOPIC SENSING USING THE PHOTONIC SYSTEM
    3.
    发明申请
    PHOTONIC DEVICE, A PHOTONIC SYSTEM COMPRISING THE PHOTONIC DEVICE AND A METHOD OF SPECTROSCOPIC SENSING USING THE PHOTONIC SYSTEM 有权

    公开(公告)号：US20250107274A1

    公开(公告)日：2025-03-27

    申请号：US18483706

    申请日：2023-10-10

    Applicant: National University of Singapore

    Inventor： Junsheng XIE ,  Zhihao REN ,  Chengkuo LEE

    IPC: H01L31/0232 ,  G01R29/24 ,  G01R31/265 ,  H01L31/0224 ,  H01L31/028

    Abstract: A photonic device is described in an embodiment. The photonic device comprising: a 2D material layer formed on a substrate; a source electrode and a drain electrode formed on the 2D material layer; and a plurality of nanoantennas formed on the 2D material layer between the source electrode and the drain electrode. Each of the plurality of nanoantennas having dimensions associated with a resonant wavelength of the photonic device and being configured to act as a non-centrosymmetric centre for providing anisotropy to generate a photocurrent in response to a polarized light incident on the photonic device, and the polarized light having a light wavelength near the resonant wavelength. The plurality of nanoantennas comprises one or more metal layers. The source electrode and the drain electrode are adapted to measure a photovoltage formed by the generated photocurrent, and a reduction in a magnitude of the photovoltage measured is used to detect a presence of an analyte having an absorption peak near the resonant wavelength of the photonic device. A photonic system comprising the photonic device and a method of spectroscopic sensing using the photonic system are also described.

    AUGMENTED TACTILE/HAPTIC RING FOR METAVERSE
    4.
    发明公开
    AUGMENTED TACTILE/HAPTIC RING FOR METAVERSE 审中-公开

    公开(公告)号：US20230409114A1

    公开(公告)日：2023-12-21

    申请号：US18209566

    申请日：2023-06-14

    Applicant: National University of Singapore

    Inventor： Zhongda SUN ,  Chengkuo LEE ,  Minglu ZHU

    IPC: G06F3/01 ,  H02N1/04

    CPC classification number: G06F3/014 ,  G06F3/016 ,  G06F3/017 ,  H02N1/04

    Abstract: A system to provide a human-machine interface to enable a user in a real space to act/sense in a virtual space. The system includes: a ring wearable by a finger of the user; a plurality of sensors, and a plurality of feedback units. The plurality of sensors being multimodal, including: a tactile sensor disposed on an inner surface of the ring; and a temperature sensor disposed on an outer surface of the ring. The plurality of feedback units being multimodal, including: a vibrator disposed on the ring, the vibrator being disposed on the outer surface of the ring; and a heater disposed on the inner surface of the ring. The system includes a controller configured to drive the plurality of sensors and the plurality of feedback devices to enable concurrent multimodal sensing and multimodal feedback.

    TRIBOELECTRIC SENSOR AND CONTROL SYSTEM
    5.
    发明申请
    TRIBOELECTRIC SENSOR AND CONTROL SYSTEM 有权

    公开(公告)号：US20210404844A1

    公开(公告)日：2021-12-30

    申请号：US17297318

    申请日：2019-10-14

    Applicant: NATIONAL UNIVERSITY OF SINGAPORE

    Inventor： Chengkuo LEE ,  Qiongfeng SHI ,  Tao CHEN

    IPC: G01D5/14 ,  H02N1/04

    Abstract: A triboelectric sensor comprises a substrate; at least one grid structure disposed in or on the substrate; and at least one electrode for collecting triboelectric charges that are generated by sliding of an object over a surface of the substrate; wherein the at least one grid structure is configured such that motion of the object is detectable from a signal generated by crossing of the object over at least part of the grid structure.

    CASCADED, SELF-CALIBRATED, SINGLE-PIXEL INFRARED HADAMARD TRANSFORM SPECTROMETER
    6.
    发明申请
    CASCADED, SELF-CALIBRATED, SINGLE-PIXEL INFRARED HADAMARD TRANSFORM SPECTROMETER 有权

    公开(公告)号：US20240377252A1

    公开(公告)日：2024-11-14

    申请号：US18292507

    申请日：2022-07-22

    Applicant: NATIONAL UNIVERSITY OF SINGAPORE

    Inventor： Zi Heng LIM ,  Yi QI ,  Senthil Kumar ANANTHARAJAN ,  Chengkuo LEE ,  Guangya ZHOU

    IPC: G01J3/02 ,  G01J3/12 ,  G01J3/28

    Abstract: Infrared spectrometer and method of performing infrared spectrometry. In one embodiment, the method comprises the steps of providing a first single pixel detector sensitive to infrared light in a first spectral range; providing an entrance slit for receiving an infrared light signal; disposing a moveable encoding mask between the entrance slit and the first single pixel detector for encoding based multiplexing, the moveable encoding mask comprising at least three adjacent coding sections along an encoding moving direction thereof, each coding section comprising the same coding pattern in a cyclic manner such that a last encoding step of one encoding section is the same as a first encoding step in a next encoding section step; disposing a dispersion and imaging optics between the entrance slit and the moveable encoding mask for dispersing the infrared signal and for imaging the dispersed infrared signal onto the moveable encoding mask; disposing a collection optics between the moveable encoding mask and the first single pixel detector for collecting an encoding based multiplexed version of the infrared signal onto the first single pixel photodetector; selectively allowing only one of at least first and second bands within the first spectral range to be imaged onto respective ones of the coding sections excluding a first coding section along the encoding moving direction of the moveable encoding mask, in a starting position of the moveable encoding mask; and moving the moveable encoding mask in the encoding moving direction for the encoding based multiplexing.

    GLOVE-BASED HUMAN MACHINE INTERFACE
    7.
    发明申请
    GLOVE-BASED HUMAN MACHINE INTERFACE 有权

    公开(公告)号：US20230020111A1

    公开(公告)日：2023-01-19

    申请号：US17758005

    申请日：2021-01-05

    Applicant: NATIONAL UNIVERSITY OF SINGAPORE

    Inventor： Minglu ZHU ,  Chengkuo LEE

    IPC: G06F3/01 ,  G06N3/08

    Abstract: A wearable human machine interface (HMI) comprises a plurality of triboelectric finger bending sensors configured to sense finger bending, deflecting or curling; a triboelectric palm sensor configured to detect an applied force and its direction; and at least one mechanical stimulator configured to provide haptic feedback. The human machine interface is configured to be worn on a human hand and may take the form of a glove.

    A SENSORY FLOORING SYSTEM AND A SENSORY FLOOR COMPRISING A SENSORY FLOORING SYSTEM
    8.
    发明申请
    A SENSORY FLOORING SYSTEM AND A SENSORY FLOOR COMPRISING A SENSORY FLOORING SYSTEM 有权

    公开(公告)号：US20220341188A1

    公开(公告)日：2022-10-27

    申请号：US17642579

    申请日：2020-10-10

    Applicant: National University of Singapore

    Inventor： Qiongfeng SHI ,  Chengkuo LEE

    IPC: E04F15/02 ,  G06F3/01

    Abstract: Disclosed is a sensory flooring system. The flooring system comprises a plurality of flooring segments and, for each flooring segment, one or more electrode portions. Each electrode portion is responsive to a force applied to the flooring segment and at least one electrode portion of a said flooring segment forms an electrode with at least one electrode portion of another said flooring segment. Moreover, each flooring segment comprises a unique encoding of the one or more electrode portions. Also disclosed is a sensory floor such a sensory flooring system, a receiver for receiving an electrical output from the one or more electrodes formed by said one or more electrode portions of the flooring segments, and a processor for analysing the electrical output and identifying the flooring segment by which the electrical output was produced.

    FABRIC TRIBOELECTRIC NANOGENERATOR
    9.
    发明申请
    FABRIC TRIBOELECTRIC NANOGENERATOR 有权

    公开(公告)号：US20220255465A1

    公开(公告)日：2022-08-11

    申请号：US17626725

    申请日：2020-08-03

    Applicant: National University of Singapore

    Inventor： Hao WANG ,  Chengkuo LEE ,  Tianyiyi HE

    IPC: H02N1/04

    Abstract: Disclosed herein are triboelectric nanogenerators (TENGs). Such TENGs comprise at least one tribolectric (TE) layer comprising two surfaces relative movement between which generates a TE charge, and a circuit. The circuit comprises a switch, a sensor, and a load. The switch has an open condition in which the TE charge accumulates (the accumulated TE charge), and a closed condition in which the accumulated TE charge discharges between the two surfaces across the load, the sensor determining a time constant (τ) of discharge of the accumulated TE charge across the load.

Patent Agency Ranking