公开(公告)号：US10327295B2

公开(公告)日：2019-06-18

申请号：US16061338

申请日：2016-12-12

Applicant: OSRAM SYLVANIA Inc.

Inventor： Andrew Johnsen ,  Keng Chen ,  Ming Li ,  Peng Xiao

IPC: H05B37/00 ,  H05B33/08

Abstract: A multi string controller with independent current setting for each string is designed for solid state lighting applications. This controller can regulate multiple channels of LEDs. Each string may have a different forward voltage and current setting. A constant buck regulator is also integrated inside this controller to regulate the total current, which is fed into the LED output channels. The circuit also contains a feedback loop in order to precisely control the current passing through each string and is immune to transient conditions.

公开(公告)号：US10230634B2

公开(公告)日：2019-03-12

申请号：US15058192

申请日：2016-03-02

Applicant: OSRAM SYLVANIA Inc.

Inventor： David Ko ,  Liam O'Hagan ,  Stefan Warner ,  Leo Tolisano

IPC: H04L12/741 ,  H04W4/80 ,  H04L12/733 ,  H04L12/26 ,  H04W84/18

Abstract: Optimized routing in localized dense networks is provided. A packet is received at a first network device in a network. An optimal route for the packet to a neighbor network device in the network is determined using a Source Routing Table (SRT), wherein the SRT includes an optimized routing table and a standard routing table, and wherein the optimized routing table comprises a list of neighbor network devices that the first network device can route to directly and wherein the standard routing table comprises a ZigBee source routing table. The packet is routed using the optimal route.

公开(公告)号：US10225908B2

公开(公告)日：2019-03-05

申请号：US15552241

申请日：2016-02-25

Applicant: OSRAM SYLVANIA Inc.

Inventor： Jinsheng Wei ,  Andrew Johnsen ,  Ranjit Jayabalan ,  Nitin Kumar

IPC: H05B37/02 ,  H05B33/08

Abstract: An active damping circuit is disclosed, which includes a peak current limiter, a drain source voltage limiter, a turn-on driver, a resistor shunt circuit, and a peak current sensor. The peak current sensor detects a rising edge of an input voltage from a phase cut dimmer by detecting a higher peak current. This drives a collector voltage of a second transistor of the peak current limiter low, which lowers a gate voltage of a first transistor of the peak current sensor, and forces it into a linear operating region, so it functions as a damping resistor. When the peak current sensor detects a decreased peak current, such that the turn-on edge of the input voltage is passed, the second transistor turns off, and the turn-on driver turns the first transistor on, such that the active damping circuit is waiting for a next edge of the input voltage.

公开(公告)号：US10184643B2

公开(公告)日：2019-01-22

申请号：US15608989

申请日：2017-05-30

Applicant: OSRAM SYLVANIA Inc.

Inventor： Alex Oksengendler ,  Glenn Freeman ,  Andrew Wilson ,  Robert Wilson

IPC: F21V15/02 ,  H05K5/02 ,  H02G3/06 ,  H02G3/08 ,  F21V15/01 ,  H05K5/03 ,  F21V17/16 ,  F21V23/00 ,  H05K5/04

Abstract: Enclosures with grommetless strain relief are provided, each including a base and a cover. The base has a bottom and four sidewalls arranged to provide an open box-like structure. A first of the sidewalls of the base is configured with a wire routing slot at its perimeter. The cover has a top and four sidewalls arranged to provide an open box-like structure configured to couple with the base, so as to provide a strain relief for an electrical wire passing through the wire routing slot. The wire is pressed against a length of the first sidewall of the base by a first sidewall of the cover. The enclosure may include other features, such as rounded edges in the wire routing path, a wire guide and/or strap to inhibit wire movement between the first sidewalls, and/or one or more locking mechanisms configured to secure the cover to the base.

公开(公告)号：US20180375576A1

公开(公告)日：2018-12-27

申请号：US16121577

申请日：2018-09-04

Applicant: OSRAM SYLVANIA Inc.

Inventor： Barry Stout ,  Christian Breuer ,  Anant Aggarwal

IPC: H04B10/116 ,  G01C21/20 ,  G08B25/00 ,  H04B10/80 ,  F21V33/00 ,  G01V1/00 ,  G08B21/12 ,  H04B10/50 ,  G08B17/00

Abstract: Techniques are disclosed for enhancing indoor navigation using light-based communication (LCom). In some embodiments, an LCom-enabled luminaire configured as described herein may include access to a sensor configured to detect a given hazardous condition. In response to detection of a hazard, the LCom-enabled luminaire may adjust its light output, transmit an LCom signal, or both, in accordance with some embodiments. A given LCom signal may include data that may be utilized by a recipient computing device, for example, in providing emergency evacuation routing or other indoor navigation with hazard avoidance, emergency assistance, or both. In a network of such luminaires, data distribution via inter-luminaire communication may be provided, in accordance with some embodiments, via an optical interface or other wired or wireless communication means. In some cases, the network may include a luminaire that is not LCom-enabled yet still configured for inter-luminaire communication.

公开(公告)号：US20180332692A1

公开(公告)日：2018-11-15

申请号：US15775422

申请日：2016-11-03

Applicant: Osram GmbH ,  Osram Sylvania Inc.

Inventor： Henry Feil ,  Barry Stout

IPC: H05B37/02 ,  H04L29/06 ,  H04W12/02 ,  H04W4/70 ,  H04W12/06 ,  H04W12/04 ,  H04L9/08

Abstract: A lighting device for communication with a mobile terminal, comprising: a lighting means, and an electronic operating device for operating the lighting means, a data storage unit, in which a first key is stored in a memory area reserved therefor, an encryption unit configured to read out the first key from the reserved memory area and, in accordance with a specifiable encryption operation, to convert measurement value data and/or identification data intended for transfer to the mobile terminal into a message encrypted by means of the first key, and a transmitting unit configured to transmit the encrypted message to the mobile terminal.

公开(公告)号：US20180302161A1

公开(公告)日：2018-10-18

申请号：US16014563

申请日：2018-06-21

Applicant: OSRAM SYLVANIA Inc.

Inventor： Barry Stout ,  Christian Breuer ,  Anant Aggarwal ,  Bernhard Siessegger

IPC: H04B10/116 ,  H04W64/00 ,  H04B10/114 ,  H04L29/08

Abstract: Techniques are disclosed for projecting visible cues to assist with light-based communication (LCom), the visible cues referred to herein as visual hotspots. The visual hotspots can be projected, for example, using a luminaire that may be LCom-enabled. The visual hotspots may be projected onto the floor of an area including an LCom system. The visual hotspots can be used for numerous benefits, including alerting a potential user that LCom is available, educating the user about LCom technology, and assisting the user in using the LCom signals available in the area. The visual hotspots may include images, symbols, cues, characters (e.g., letters, words, numbers, etc.), indicators, logos, or any other suitable content. In some cases, the visual hotspots may be interactive, such that a user can scan the hotspot to cause an action to occur (e.g., launch an application or website).

公开(公告)号：US10103811B2

公开(公告)日：2018-10-16

申请号：US15128466

申请日：2015-03-25

Applicant: OSRAM SYLVANIA Inc.

Inventor： Barry Stout ,  Christian Breuer ,  Anant Aggarwal

IPC: H04B10/116 ,  F21V33/00 ,  G08B25/00 ,  H04B10/80

Abstract: Techniques are disclosed for enhancing indoor navigation using light-based communication (LCom). In some embodiments, an LCom-enabled luminaire configured as described herein may include access to a sensor configured to detect a given hazardous condition. In response to detection of a hazard, the LCom-enabled luminaire may adjust its light output, transmit an LCom signal, or both, in accordance with some embodiments. A given LCom signal may include data that may be utilized by a recipient computing device, for example, in providing emergency evacuation routing or other indoor navigation with hazard avoidance, emergency assistance, or both. In a network of such luminaires, data distribution via inter-luminaire communication may be provided, in accordance with some embodiments, via an optical interface or other wired or wireless communication means. In some cases, the network may include a luminaire that is not LCom-enabled yet still configured for inter-luminaire communication.

公开(公告)号：US20180277720A1

公开(公告)日：2018-09-27

申请号：US15762126

申请日：2016-09-19

Applicant: OSRAM Opto Semiconductors GmbH ,  OSRAM SYLVANIA Inc.

Inventor： Yi Zheng ,  Sonja Tragl ,  Juliane Kechele ,  Johanna Strube-Knyrim ,  Madis Raukas ,  Stefan Lange ,  Daniel Bichler

IPC: H01L33/50 ,  C09K11/02 ,  C09K11/77 ,  C09K11/08

CPC classification number: H01L33/502 ,  C09K11/025 ,  C09K11/0883 ,  C09K11/7734

Abstract: Wavelength converters including coarse particles/grains of a red nitride phosphor are disclosed. In some embodiments the red nitride phosphor is a (Ca,Sr,Ba)2Si5N8:Eu phosphor with a D50 grain size or a D50 particle size that is ≥5 microns. The red nitride phosphor may be encapsulated within an organic matrix or present in an inorganic matrix. In the latter case, the inorganic matrix may include fine grains with a D50 grain size

公开(公告)号：US20180238520A1

公开(公告)日：2018-08-23

申请号：US15439980

申请日：2017-02-23

Applicant: OSRAM GmbH ,  OSRAM SYLVANIA Inc.

Inventor： Joerg Sorg ,  Alan L. Lenef ,  Dennis Sprenger

IPC: F21V9/16 ,  F21V7/00 ,  G02B27/14 ,  F21V29/502 ,  F21V29/70

CPC classification number: F21V9/30 ,  F21K9/64 ,  F21V7/0091 ,  F21V29/502 ,  F21V29/70 ,  G02B27/141

Abstract: A laser-activated remote phosphor (LARP) target with a first layer having a first index of refraction and a phosphor dispersed within the first layer. A second layer which has a second index of refraction different from the first index of refraction and adjoins the first layer at an interface. The first index of refraction is higher than the second index of refraction such that the interface is configured to at least partially reflect light emitted from the phosphor.