公开(公告)号：WO2021232017A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/032791

申请日：2021-05-17

Applicant: LUMILEDS LLC

Inventor： KALKSCHMIDT, Christian ,  KARBOWSKI, Udo

IPC: H05B45/3725 ,  H05B45/305

Abstract: A lighting unit includes a power supply that provides a maximum voltage and multiple LED lighting circuits. Each of the LED lighting circuits includes an LED string, multiple switches, a switching sequencer and a switch controller. The LED string includes multiple series-connected emitters having a total forward voltage that exceeds the maximum voltage of the power supply. Each of the switches is coupled in parallel with a respective LED of the LED string. The switching sequencer provides a sequence of switching patterns such that a total forward voltage of simultaneously active LEDs in each switching pattern does not exceed the maximum voltage of the power supply. The switch controller actuates switches according to each of the switching patterns in the sequence. The LED string of each of the plurality of LED lighting circuits is arranged in a two-dimensional array.

公开(公告)号：WO2021231939A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/032571

申请日：2021-05-14

Applicant: LUMILEDS LLC

Inventor： BOOGAARD, Wim ,  VERBURG, Piet ,  VAN DER WEKKEN, Pieter

IPC: F21V29/80

Abstract: A heat sink is provided having at least one receiving section configured for thermal coupling to at least one lighting module. The heat sink includes at least two connection sections on opposite sides of the at least one receiving section. Each of the at least two connection sections includes at least one reference pin protruding at least partially from a first surface of the at least one connection section and at least one alignment recess protruding into the first surface of the at least one connection section such that the heat sink is configured for thermal coupling to another heat sink via the at least two connection sections.

公开(公告)号：WO2021231932A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/032558

申请日：2021-05-14

Applicant: LUMILEDS LLC

Inventor： KESSELS, Marcus Jozef Henricus ,  THEUNISSEN, Ton ,  PETERS, Ralph Hubert ,  HENNINGER, Georg

IPC: H01L33/50 ,  H01L25/075 ,  F21V9/40 ,  G08G1/095

Abstract: Methods, apparatus and systems are described herein. A light source includes a first light emitting diode (LED) die configured to emit a first die color and a second LED die configured to emit a second die color. A first filling is disposed over the first LED die. The first filling has a convex surface and includes a first phosphor such that the first die color is converted to a first illuminous color. A second filling is disposed over the second LED die. The second filling includes a second phosphor such that the second die color is converted to a second illuminous color that has a higher absorption energy than an illumination energy of the first illuminous color.

公开(公告)号：WO2021158912A1

公开(公告)日：2021-08-12

申请号：PCT/US2021/016816

申请日：2021-02-05

Applicant: LUMILEDS LLC

Inventor： SAU, Wan-Ying ,  BONNE, Ronald Johannes ,  SONG, Zhi Hua

IPC: H01L25/16 ,  H01L25/075 ,  H01L27/15 ,  H05K1/18 ,  H01L23/14

Abstract: Light-emitting devices are described herein. A device includes a packaging substrate having a top surface and a bottom surface and a hybridized device having a bottom surface on the top surface of the packaging substrate. The hybridized device includes a silicon backplane that includes input/output (I/O) pins and a light-emitting diode (LED) array having a bottom surface on a top surface of the silicon backplane. Passive components are disposed on the top surface of the packaging substrate. Conductive connectors are electrically coupled between the top surface of the hybridized device and the top surface of the packaging substrate.

公开(公告)号：WO2020205583A1

公开(公告)日：2020-10-08

申请号：PCT/US2020/025383

申请日：2020-03-27

Applicant: LUMILEDS LLC

Inventor： SONG, Zhi Hua

IPC: H05B45/3725 ,  H02M7/217 ,  H02M3/335 ,  H02M3/156

Abstract: Systems, devices and methods are described herein. A device includes a power stage circuit, a switch and a first circuit. The switch is electrically coupled to the power stage circuit. The first circuit is electrically coupled to the power stage circuit and the switch and has a single output. The first circuit is configured to provide a first circuit output voltage at the single output. The first circuit output voltage has a first level on a condition that the power stage circuit is conducting at a peak current level. The first circuit output voltage has a second level on a condition that the power stage circuit is not conducting.

公开(公告)号：WO2020139958A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/068594

申请日：2019-12-26

Applicant: LUMILEDS HOLDING B.V. ,  LUMILEDS LLC

Inventor： SONG, Zhihua

IPC: H02M1/36 ,  H02M3/156 ,  H05B33/08 ,  H02M1/00

Abstract: Systems, apparatus and methods for zero current detection and start-up for DC-DC converters are described herein. A device includes a first circuit and a second circuit. The first circuit receives a first voltage, at a first input, and provides a second voltage having one of a first level and a second level based on a level of the first voltage being above or below a threshold voltage. The second circuit is electrically coupled to the first input of the first circuit and decreases the level of the first voltage below a threshold voltage on a condition that the level of the first voltage is above the threshold voltage for a maximum time.

公开(公告)号：WO2016210302A1

公开(公告)日：2016-12-29

申请号：PCT/US2016/039321

申请日：2016-06-24

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： DENG, Tao ,  FARRANTE, Steven ,  PRAGADA, Ravikumar V. ,  DEENOO, Yugeswar ,  COHEN, Daniel R. ,  STERN-BERKOWITZ, Janet A. ,  LEE, Moon-il ,  BELURI, Mihaela C.

IPC: H04W48/16 ,  H01Q3/00 ,  H04B7/04 ,  H04W48/12

CPC classification number: H04L27/2673 ,  H04B7/0617 ,  H04B7/0695 ,  H04B7/088 ,  H04L27/2666 ,  H04W48/12 ,  H04W48/16 ,  H04W56/001

Abstract: Methods and apparatus for initial cell search and selection using beamforming are described. An apparatus is configured with multiple receive beams and includes an antenna and a processor. The processor is operatively coupled to the antenna and sweeps a respective one of the multiple receive beams during each of multiple synchronization sub-frames, using a pre-defined sweep time and dwell period, to detect a synchronization signal. The processor also obtains symbol timing information and a synchronization signal index from the detected synchronization signal. The obtained synchronization signal index corresponds to a synchronization signal index of the set. The process decodes a first broadcast channel using the obtained symbol timing information, the obtained synchronization signal index and a predefined or blind-coded symbol distance between the detected synchronization signal and the first broadcast channel. The process decodes a second broadcast channel using information obtained from decoding the first broadcast channel.

Abstract translation: 描述了使用波束形成的初始小区搜索和选择的方法和装置。 一种装置被配置有多个接收波束并且包括天线和处理器。 处理器可操作地耦合到天线，并且使用预定义的扫描时间和停留周期在多个同步子帧的每一个期间扫描多个接收波束中的相应一个以检测同步信号。 处理器还从检测到的同步信号中获得符号定时信息和同步信号索引。 获得的同步信号索引对应于该组的同步信号索引。 该处理使用所获得的符号定时信息，所获得的同步信号索引和检测到的同步信号与第一广播信道之间的预定义或盲编码的符号距离来解码第一广播信道。 该处理使用从解码第一广播信道获得的信息来解码第二广播频道。

公开(公告)号：WO2014110091A1

公开(公告)日：2014-07-17

申请号：PCT/US2014/010619

申请日：2014-01-08

Applicant: VISHAY DALE ELECTRONICS, INC.

Inventor： BOLDT, Randall B.

IPC: H02J7/00

CPC classification number: H02J50/10 ,  H01F38/14 ,  H02J7/02 ,  H02J7/025 ,  H02J50/40

Abstract: Devices to be charged and wireless charging devices are disclosed. A DTBC includes a processing unit, a battery, an axially wound receiver coil and battery charging components. The battery powers the processing unit. The axially wound receiver coil has a first end and a second end located at opposite ends of a central axis of the axially wound receiver coil and receives electromagnetic flux via either one of the first end or the second end. The battery charging components are coupled between the battery and the axially wound receiver coil, convert the electromagnetic flux into direct current (DC) and apply the DC to charge the battery.

Abstract translation: 公开了要充电和无线充电装置的装置。 DTBC包括处理单元，电池，轴向卷绕的接收器线圈和电池充电部件。 电池为处理单元供电。 轴向卷绕的接收器线圈具有位于轴向缠绕的接收器线圈的中心轴线的相对端处的第一端和第二端，并且经由第一端或第二端中的任一端接收电磁通量。 电池充电部件耦合在电池和轴向卷绕的接收器线圈之间，将电磁通量转换为直流电（DC）并施加DC以对电池充电。

公开(公告)号：WO2014074832A1

公开(公告)日：2014-05-15

申请号：PCT/US2013/069168

申请日：2013-11-08

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： ZHANG, Guodong ,  WANG, Xiaofei

IPC: H04L5/00 ,  H04W74/04

CPC classification number: H04W74/06 ,  H04L5/0053 ,  H04W74/006 ,  H04W84/042

Abstract: A method and apparatus for coordinated orthogonal channel access (COCA) are described. A wireless transmit/receive unit (WTRU) of a plurality of WTRUs receives a trigger to transmit an uplink (UL) control frame on a channel simultaneously with at least one other of the plurality of WTRUs. The WTRU transmits the control frame on the channel in response to receiving the trigger.

Abstract translation: 描述了用于协调正交信道接入（COCA）的方法和装置。 多个WTRU的无线发射/接收单元（WTRU）接收与多个WTRU中的至少另一个WTRU同时发送上行链路（UL）控制帧的触发。 WTRU响应于接收到该触发而在该信道上传输该控制帧。

公开(公告)号：WO2013116662A1

公开(公告)日：2013-08-08

申请号：PCT/US2013/024363

申请日：2013-02-01

Applicant: INTERDIGITAL PATENT HOLDINGS, INC.

Inventor： FREDA, Martino M. ,  DIGIROLAMO, Rocco ,  GAUVREAU, Jean-Louis ,  LAUGHLIN, Scott ,  TOUAG, Athmane ,  BELURI, Mihaela C. ,  MURRAY, Joseph M. ,  DAI, Yuying ,  TERRY, Stephen E. ,  MUDGAL, Parul ,  SYED, Kamraan Nasim

IPC: H04W72/12

CPC classification number: H04L5/14 ,  H04L5/0055 ,  H04W16/14 ,  H04W72/005 ,  H04W72/042 ,  H04W72/1215 ,  H04W74/0833

Abstract: A method and apparatus for coexistence among wireless transmit/receive units (WTRUs) operating in the same spectrum are disclosed. A WTRU includes a memory, a receive unit, a transmit unit and a control unit. The memory stores coexistence gap patterns. Each of the coexistence gap patterns defines a pattern of transmission periods and silent periods for the WTRU and corresponds to a respective duty cycle. The receive unit receives from a base station information regarding a duty cycle for a wireless cell operated by the base station. The control unit selects one of the coexistence gap patterns based on the received information regarding the duty cycle for the wireless cell and controls the transmit unit to transmit information during the transmission periods and not transmit information during the silent periods of the selected one of the plurality of coexistence gap patterns.

Abstract translation: 公开了在相同频谱中工作的无线发射/接收单元（WTRU）之间共存的方法和装置。 WTRU包括存储器，接收单元，发送单元和控制单元。 存储器存储共存间隙模式。 每个共存间隙模式定义了WTRU的传输周期和静默周期的模式，并且对应于相应的占空比。 接收单元从基站接收关于由基站操作的无线小区的占空比的信息。 控制单元基于接收到的关于无线小区的占空比的信息来选择共存间隙模式之一，并且控制发送单元在发送周期期间发送信息，并且在多个选择的一个的静音期期间不发送信息 的共存差距格局。