公开(公告)号：US12086312B2

公开(公告)日：2024-09-10

申请号：US18079403

申请日：2022-12-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joonyoung Song ,  Doukyoung Song ,  Jina Jeon

IPC: G06F3/01 ,  H04B10/50 ,  H04N5/30 ,  H04N25/40

CPC classification number: G06F3/013 ,  H04B10/50 ,  H04N5/30 ,  H04N25/41

Abstract: A device and method of controlling a light source in eye tracking using a glint are provided. The method includes transmitting, from a processor to a first camera and a second camera, an activation signal to instruct the first and second cameras to operate according to a pattern, transmitting, to a first light driver and a second light driver, a control command to instruct the first and second light drivers to operate according to a control signal (a first control signal or a second control signal) corresponding to each of the first and second light drivers, and preventing the processor from intervening in a process of turning on and off odd-numbered light sources and even-numbered light sources.

公开(公告)号：US12082365B2

公开(公告)日：2024-09-03

申请号：US18057022

申请日：2022-11-18

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Charles Calvin Byers

IPC: H04L49/101 ,  G01J1/44 ,  G02B6/42 ,  G06F1/26 ,  G06F1/3209 ,  H01R13/193 ,  H01R43/26 ,  H04L49/15 ,  H04Q11/00 ,  H05K7/14 ,  H05K7/16 ,  H05K7/20 ,  H04B10/50 ,  H04B10/60

CPC classification number: H05K7/1492 ,  G01J1/44 ,  G02B6/4246 ,  G06F1/263 ,  G06F1/3209 ,  H01R13/193 ,  H01R43/26 ,  H04L49/101 ,  H04L49/15 ,  H04Q11/0005 ,  H04Q11/0062 ,  H05K7/16 ,  H05K7/20263 ,  H04B10/50 ,  H04B10/60 ,  H04Q2011/0041 ,  H04Q2011/0058 ,  H04Q2011/0096

Abstract: Connectors for a networking device may be provided. A networking device may comprise a first plurality of switch bars each comprising a first switch type arranged parallel to one another, a second plurality of switch bars each comprising a second switch type arranged parallel to one another, and a third plurality of switch bars each comprising a third switch type arranged parallel to one another. The first plurality of switch bars, the second plurality of switch bars, and the third plurality of switch bars may be arranged orthogonally. A first one of the first plurality of switch bars may be connected to a first one of the second plurality of switch bars via a retractable mechanical connector mechanism.

公开(公告)号：US12081268B2

公开(公告)日：2024-09-03

申请号：US18094205

申请日：2023-01-06

Applicant: ACACIA COMMUNICATIONS, INC.

Inventor： Long Chen ,  Leonard Jan-Peter Ketelsen

IPC: H01S5/026 ,  G02B6/12 ,  G02B6/13 ,  H04B10/032 ,  H04B10/25 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/50 ,  H04B10/032 ,  H04B10/25 ,  H04J14/0254 ,  G02B6/12 ,  G02B6/13 ,  H01S5/0261 ,  H01S5/0262 ,  H01S5/0265

Abstract: Aspects of the present disclosure are directed to a photonic integrated circuit (PIC) having a resistivity-engineered substrate to suppress radio-frequency (RF) common-mode signals. In some embodiments, a semiconductor substrate is provided that comprises two portions having different levels of resistivity to provide both suppression of common mode signals, and reduction of RF absorption loss for non-common mode RF signals. In such embodiments, a bottom portion of the semiconductor substrate has a low resistivity to suppress common mode via RF absorption, while a top portion of the semiconductor substrate that is adjacent to conductors in the IC has a high resistivity to reduce RF loss.

公开(公告)号：US12066181B2

公开(公告)日：2024-08-20

申请号：US17471908

申请日：2021-09-10

Applicant: SACO Technologies Inc.

Inventor： Bassam Jalbout ,  Brian Wong

IPC: H04B10/114 ,  F21V5/04 ,  F21V13/04 ,  F21V14/00 ,  F21V19/00 ,  F21V19/02 ,  F21V23/00 ,  G02B5/00 ,  G02B19/00 ,  G02B27/09 ,  G09G3/00 ,  G09G3/32 ,  H04B10/50 ,  F21Y105/10 ,  F21Y115/10

CPC classification number: F21V5/045 ,  F21V5/04 ,  F21V13/04 ,  F21V14/00 ,  F21V19/0015 ,  F21V19/02 ,  F21V23/004 ,  G02B5/003 ,  G02B19/0028 ,  G02B19/009 ,  G02B27/0927 ,  G02B27/0955 ,  G02B27/0977 ,  G09G3/001 ,  G09G3/32 ,  H04B10/50 ,  H04B10/502 ,  F21Y2105/10 ,  F21Y2115/10 ,  G09G2330/02 ,  G09G2354/00 ,  H04B10/1141

Abstract: A light shaping assembly comprises a printed circuit board (PCB), a two-dimensional (2D) array formed of a plurality of rows, each row comprising a plurality of light sources mounted on the PCB, and a Fresnel lens. The Fresnel lens redirects a light beam emitted by each light source at an angle that increases as a function of a distance between each light source and a selected point on the PCB, so that the light beams emitted by the light sources are collectively directed toward a common target.

公开(公告)号：US12021566B2

公开(公告)日：2024-06-25

申请号：US17613721

申请日：2021-04-20

Applicant: XI'AN UNIVERSITY OF POSTS & TELECOMMUNICATIONS

Inventor： Feng Zhao ,  Jianjun Yu ,  Jingling Li ,  Jiamin Gong

IPC: H04B10/50 ,  H04B10/532 ,  H04B10/54 ,  H04B10/90 ,  H04J14/00 ,  H04J14/06

CPC classification number: H04B10/54 ,  H04B10/532 ,  H04B10/90 ,  H04B10/50 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/5053 ,  H04J14/00 ,  H04J14/06

Abstract: The present disclosure provides a photonics-aided vector terahertz signal communication system. The system includes an optical frequency comb generation module, a vector terahertz signal generation module, an optical fiber transmission module, a vector terahertz signal detection module, and a vector terahertz signal emission module that are sequentially connected, where the vector terahertz signal generation module includes a first binary sequence generator, a first electronic amplifier, and a first intensity modulator that are sequentially connected, the first binary sequence generator generates binary data representing to-be-transmitted data, the first intensity modulator performs, based on the binary data, amplitude modulation on an optical frequency comb entering the first intensity modulator, and an optical signal obtained after the modulation of the first intensity modulator is a vector terahertz signal carrying the to-be-transmitted data. In the present disclosure, a vector terahertz signal can be generated by using an intensity modulator.

公开(公告)号：US20240168359A1

公开(公告)日：2024-05-23

申请号：US18425017

申请日：2024-01-29

Applicant: NEC Corporation

Inventor： Katsuhiro YUTANI

IPC: G02F1/225 ,  H04B10/25 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/588

CPC classification number: G02F1/2252 ,  H04B10/25891 ,  H04B10/50 ,  H04B10/516 ,  H04B10/564 ,  H04B10/588 ,  G02F1/212

Abstract: To autonomously apply a bias voltage to an optical modulator according to phase angle information provided from outside in a pluggable optical module. A pluggable electric connector (11) can communicate a communication data signal and a control signal with an optical communication apparatus (92). An optical signal output unit (13) includes a Mach-Zehnder type optical modulator including a phase modulation area and outputs an optical modulation signal (LS) modulated according to the communication data signal. An optical power control unit (14) can control optical power of the optical modulation signal (LS). A pluggable optical receptor (15) can output the optical modulation signal (LS) to an optical fiber (91). A control unit (12) controls a modulation operation of the optical signal output unit (13) and the bias voltage applied to the phase modulation area. The control unit (12) determines the bias voltage applied to the phase modulation area according to phase angle information of the control signal (CON1). The optical signal output unit (13) applies the bias voltage determined by the control unit (12) to the phase modulation area.

公开(公告)号：US11968581B2

公开(公告)日：2024-04-23

申请号：US17908320

申请日：2021-03-01

Applicant: SIGNIFY HOLDING B.V.

Inventor： Andries Van Wageningen ,  Piotr Polak ,  Sahil Sharma

IPC: H04W36/08 ,  H04B10/112 ,  H04B10/40 ,  H04W12/037 ,  H04W12/041 ,  H04W12/06 ,  H04W36/00 ,  H04B10/50 ,  H04B10/60

CPC classification number: H04W36/08 ,  H04B10/1129 ,  H04W12/037 ,  H04W12/041 ,  H04W12/06 ,  H04W36/0038 ,  H04W36/00837 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60

Abstract: Because of the line-of-sight character of optical wireless communication and a limited field-of-view of optical receivers, the coverage of an access point and the overlapping coverage area of adjacent access points in an optical system are smaller as compared to a RF system. It turns more challenging to support an end point (110) to roam securely in an optical multi-cell wireless communication network. To speed up the derivation of a new pairwise transient key with a new access point during a handover procedure, the end point of this invention comprises a controller (118) that is configured to act as a second supplicant (1181), on behalf of a first supplicant (1186) comprised in a host processor (1185), to communicate with an authenticator to establish a new pairwise transient key for the end point (110) and a candidate access point, and an active pairwise transient key with the currently associated access point is used to secure the communication for new key derivation.

公开(公告)号：US20240118395A1

公开(公告)日：2024-04-11

申请号：US18500324

申请日：2023-11-02

Applicant: Lumentum Operations LLC

Inventor： Konstantin Petrovich PETROV ,  Mikhail DOLGANOV

IPC: G01S7/484 ,  H01S5/042 ,  H04B10/50

CPC classification number: G01S7/484 ,  H01S5/0428 ,  H04B10/50 ,  H04B10/524

Abstract: A driver circuit, for generating narrow electrical pulses of high repetition rate with high peak current and low after pulse ringing to drive an optical load, may include a source, a first circuit path, and a second circuit path. The first circuit path may be connected to the source and may include inductive elements and a switch. The switch being in a closed state may charge current in the inductive elements through the first circuit path. The second circuit path may connect to the optical load and may be connected to the source. The second circuit path may include the inductive elements and a capacitive element in series with the optical load. The switch transitioning from the closed state to an open state may discharge current from the inductive elements through the second circuit path to provide an electrical pulse to the optical load.

公开(公告)号：US11953678B2

公开(公告)日：2024-04-09

申请号：US17202973

申请日：2021-03-16

Applicant: Analog Photonics LLC

Inventor： Peter Nicholas Russo ,  Ehsan Shah Hosseini ,  Christopher Vincent Poulton ,  Erman Timurdogan ,  Diedrik Vermeulen ,  Michael Robert Watts ,  Michael J. Whitson

IPC: G02B27/00 ,  H04B10/112 ,  H04B10/116 ,  H04B10/50 ,  H04B10/40 ,  H04B10/60

CPC classification number: G02B27/0068 ,  G02B27/0087 ,  H04B10/112 ,  H04B10/116 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60

Abstract: Aspects of the present disclosure describe systems, methods, and structures for aberration correction of optical phased arrays that employ a corrective optical path difference (OPD) in the near-field of an OPA to correct or cancel out aberrations in emitted beams of the OPA including those reaching far-field distances by generating a spatially-varying OPD across the aperture of the OPA that is substantially equal and opposite to an equivalent OPD of the aberration(s).

公开(公告)号：US11916598B2

公开(公告)日：2024-02-27

申请号：US17229510

申请日：2021-04-13

Applicant: AvicenaTech Corp.

Inventor： Robert T. Weverka ,  Robert Kalman ,  Bardia Pezeshki ,  Alexander Tselikov ,  Cameron Danesh

IPC: H04B10/50 ,  H04B10/25 ,  G02B6/02 ,  G02B6/42 ,  H04B10/2581

CPC classification number: H04B10/502 ,  H04B10/25 ,  G02B6/02042 ,  G02B6/42 ,  H04B10/2581 ,  H04B10/50

Abstract: Coupling of light from large angular distribution microLEDs into smaller angular acceptance distribution of transmission channels is performed using optical elements.