TUNABLE LASER LIGHT SOURCE AND LiDAR APPARATUS INCLUDING THE SAME

    公开(公告)号:US20240201387A1

    公开(公告)日:2024-06-20

    申请号:US18224270

    申请日:2023-07-20

    Abstract: A tunable laser light source includes a substrate; a waveguide layer disposed on the substrate, and including: a first optical waveguide and a second optical waveguide that are spaced apart from each other in a first direction and that extend in a second direction perpendicular to the first direction; a first optical amplifier provided on the first optical waveguide; a second optical amplifier provided on the second optical waveguide and facing the first optical amplifier at a distance in the first direction; and a thermal isolation structure that is provided between the first optical amplifier and the second optical amplifier in the first direction, wherein, in the thermal isolation structure, the waveguide layer is disconnected in the first direction such that an upper surface of the substrate is exposed outside of the waveguide layer.

    Photonic integrated circuit platform and optical phase array device using the same

    公开(公告)号:US12174416B2

    公开(公告)日:2024-12-24

    申请号:US18517599

    申请日:2023-11-22

    Abstract: A photonic integrated circuit platform includes a substrate, a first oxide layer disposed on the substrate and including an insulating transparent oxide, and a first optical element layer disposed on the first oxide layer and including a semiconductor material. The photonic integrated circuit platform further includes a second optical element layer disposed on the first optical element layer and including an insulating material different from the insulating transparent oxide of the first oxide layer, the second optical element layer further including a compound semiconductor material different from the semiconductor material of the first optical element layer, a second oxide layer disposed on the second optical element layer and including an insulating transparent oxide, and a plurality of optical elements formed by patterning the first optical element layer or the second optical element layer.

    Object detection device and method of operating the same

    公开(公告)号:US11947016B2

    公开(公告)日:2024-04-02

    申请号:US17021546

    申请日:2020-09-15

    CPC classification number: G01S17/894 G01S17/04 G01S7/4865

    Abstract: An object detection device may include: a converter configured to convert a transmission signal radiated towards an object into a digital transmission signal and a received signal reflected from the object into a digital received signal, according to a predetermined sampling period; and at least one processor configured to: interpolate between elements of the digital transmission signal and the digital received signal that have the predetermined sampling period, to obtain an interpolated transmission signal and an interpolated received signal; remove noise from each of the interpolated transmission signal and the interpolated received signal; generate a cross-correlation signal between the interpolated transmission signal from which the noise is removed and the interpolated received signal from which the noise is removed; and acquire a three-dimensional (3D) image of the object based on at least one peak value of the cross-correlation signal.

    Lidar system and method of operating the same

    公开(公告)号:US11029398B2

    公开(公告)日:2021-06-08

    申请号:US15888537

    申请日:2018-02-05

    Abstract: Light detection and ranging (LiDAR) systems and methods of operating the LiDAR systems are provided. The LiDAR system includes a light emitter configured to emit first lights of different wavelengths in a vertical direction and at different scanning angles with respect to a horizontal axis, a lens configured to converge second lights that are reflected from objects on which the first lights are emitted, and a light filter comprising an active-type device configured to adjust a transmission central wavelength of the active-type device to the different wavelengths of the first lights that are emitted from the light emitter. The LiDAR system further includes a controller configured to control an operation of the light emitter and the light filter, and a detector configured to detect light from the light emitter, and obtain information about the objects.

    Method for providing haptic effect and electronic device thererfor

    公开(公告)号:US10249156B2

    公开(公告)日:2019-04-02

    申请号:US15807960

    申请日:2017-11-09

    Abstract: Disclosed are an apparatus and a method for providing a haptic effect in an electronic device. The electronic device includes at least one sensor, at least one processor, and a memory electrically coupled to the at least one processor, storing instructions executable by the at least one processor. The instructions implement the method, including detecting at least one haptic event related to content output by the electronic device, detecting movement information indicating movement of a haptic providing module electrically coupled to the electronic device, via the at least one sensor, wherein the haptic providing module includes one or more haptic actuators, and selecting at least one haptic actuator of the one or more haptic actuators based on at least one attribute of the at least one haptic event and the detected movement information.

    Electronic device and method of controlling transmission power in electronic device supporting carrier aggregation

    公开(公告)号:US12245168B2

    公开(公告)日:2025-03-04

    申请号:US17565350

    申请日:2021-12-29

    Abstract: According to various embodiments, an electronic device may include: a communication processor, at least one radio frequency integrated circuit (RFIC) connected to the communication processor, and at least one antenna, each of which is connected to the at least one RFIC via at least one radio frequency front-end (RFFE) circuit, and is configured to transmit or receive a signal corresponding to at least one communication network, wherein the communication processor is configured to: identify whether target power corresponding to a primary component carrier (PCC) exceeds maximum transmission power of the electronic device while performing uplink carrier aggregation (CA), and based on identifying that the target power corresponding to the PCC exceeds the maximum transmission power, set a first transmission power of the PCC to a first power less than the maximum transmission power and set a second transmission power of at least one secondary component carrier (SCC) to a second power less than the first power, based on a first spectral efficiency corresponding to the first transmission power of the PCC and a second spectral efficiency corresponding to the second transmission power of the at least one SCC.

    LiDAR apparatus having improved signal-to-noise ratio

    公开(公告)号:US12189032B2

    公开(公告)日:2025-01-07

    申请号:US17135228

    申请日:2020-12-28

    Abstract: Provided is a light detection and ranging (LiDAR) apparatus including a light source configured to generate light, an optical transmitter configured to emit the light generated by the light source to outside of the LiDAR apparatus, an optical receiver configured to receive light from the outside of the LiDAR apparatus, a resonance-type photodetector configured to selectively amplify and detect light having a same wavelength as a wavelength of light generated by the light source among the light received by the optical receiver, and a processor configured to control the light source and the resonance-type photodetector, wherein the resonance-type photodetector includes a resonator, a phase modulator provided on the resonator and configured to control a phase of light traveling along the resonator based on control of the processor, and an optical detector configured to detect an intensity of the light traveling along the resonator.

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