公开(公告)号：US20190059141A1

公开(公告)日：2019-02-21

申请号：US16167504

申请日：2018-10-22

Applicant: OSRAM SYLVANIA Inc. ,  OSRAM SYLVANIA Inc.

Inventor： Lin Yang ,  Sivakumar Thangavelu ,  Michael Ardai

IPC: H05B37/02 ,  H03K19/0175 ,  G05B19/042

Abstract: Lighting control interface techniques and corresponding circuitry are provided. The techniques include receiving a first signal potentially representative of a first lighting control signal, and receiving a second signal potentially representative of a second lighting control signal, and determining if either of the first and second signals complies with a first or second lighting control protocol. The lighting control signal may be applied to the same interface connector (regardless of the protocol), thereby eliminating the need for separate dedicated interface connectors. In some cases, the techniques further include determining that a dummy control signal is manifesting in the first and/or second signals, thereby indicating that no lighting control signal is being applied. Depending on the resulting determination, the techniques may include, for example, setting output lighting power according to a pre-established value, or according to the first or second lighting control protocol.

公开(公告)号：US20220299190A1

公开(公告)日：2022-09-22

申请号：US17537756

申请日：2021-11-30

Applicant: OSRAM SYLVANIA Inc.

Inventor： Brian J. Chemel ,  Colin Piepgras ,  Steve T. Kondo ,  Scott D. Johnston

IPC: F21V14/02 ,  F21V21/15 ,  F21V21/30 ,  F21V23/04 ,  H05B45/20 ,  H05B47/10 ,  H05B47/11 ,  H05B47/12 ,  H05B47/19 ,  H05B47/105 ,  H05B47/155 ,  F21S2/00 ,  F21V21/00 ,  F21V29/56 ,  F21V29/76 ,  F21S4/28 ,  F21S9/02 ,  F21V15/01

Abstract: In embodiments of the present invention, a method and system is provided for commissioning improved intelligent, LED-based lighting systems. The LED based lighting systems may include fixtures with one or more LED light bars, integrated sensors, onboard intelligence to send and receive signals and control the LED light bars, and network connectivity to other fixtures.

公开(公告)号：US10891754B2

公开(公告)日：2021-01-12

申请号：US15779608

申请日：2016-12-05

Applicant: OSRAM SYLVANIA Inc. ,  OSRAM GmbH

Inventor： Bernhard Siessegger ,  Yang Li ,  Christian Breuer ,  Christoph Pietz

IPC: G06T7/73 ,  G06K9/46 ,  G06T7/50 ,  G06T7/70

Abstract: Techniques and architecture are disclosed for mobile transport systems configured to determine vehicle positions within an area using light-based communication signals. The system includes a plurality of luminaires located in an area and configured to transmit luminaire position data recognizable by a sensor disposed on a vehicle. The sensor receives an image of a luminaire including a light-based communication signal encoded with luminaire position data. Luminaire position data can be combined with luminaire layout information to determine a known location of the luminaire. A vehicle position relative to the known luminaire location can be determined based on mathematical relationships. Vehicle orientation relative to the area can be determined based an asymmetric fiducial pattern or multiple known luminaire locations. The system can combine a vehicle position relative to a known luminaire location with vehicle orientation relative to the area to determine a vehicle position relative to the area.

公开(公告)号：US10816945B2

公开(公告)日：2020-10-27

申请号：US15078980

申请日：2016-03-23

Applicant: Osram Sylvania Inc.

Inventor： Anant Aggarwal ,  Bernhard Siessegger

IPC: H04N7/18 ,  G05B15/02 ,  H04N5/33 ,  G01V8/10 ,  G08B13/194 ,  G08B13/196

Abstract: Techniques are disclosed for detecting stationary presence using IR sensor array. A number of IR images may be captured. Of the IR images captured by the IR sensor array certain pixels can be identified as causing false triggers. These pixels can be identified and filtered to be ignored. The non-filtered pixels of IR images may be averaged over various time intervals to calculate a number of average IR frames. The difference between these average IR frames provides a delta frame. A mask frame may be calculated as the summation of delta frames over time, and the value of the mask frame may be used to detect a stationary human presence even when no delta value is calculated. Alternatively, the mask frame may be used to calculate a background frame that represents the IR signature of stationary or cyclical objects within the scanned area that are not intended to trigger the presence detection system. A stationary presence may be determined by subtracting the background frame from a current average IR frame.

公开(公告)号：US10743385B2

公开(公告)日：2020-08-11

申请号：US16486532

申请日：2017-02-27

Applicant: Osram Sylvania Inc.

Inventor： Alireza Safaee

IPC: H05B45/48 ,  H05B45/37 ,  B60Q1/14

Abstract: Various embodiments include a voltage adjusting block (VAB) coupled to a light emitting diode (LED) string. The VAB includes a first switch having a first lead connected to a voltage input, and having a second lead, the first switch having a controllable duty cycle, a first diode having a cathode connected to the second lead of the first switch, and having an anode, a first inductor having a first lead connected to the cathode of the first diode, and having a second lead, and a first capacitor having a first lead connected to the anode of the first diode and having a second lead connected to the second lead of the first inductor. The VAB may provide a variable voltage across the anode of the first diode and the second lead of the first capacitor dependent upon a number of LEDs in the LED string being turned on.

公开(公告)号：US20200245424A1

公开(公告)日：2020-07-30

申请号：US16257291

申请日：2019-01-25

Applicant: Osram Sylvania Inc. ,  Osram GmbH

Inventor： Barry Stout ,  Henry Feil ,  Nitin Kumar

IPC: H05B37/03 ,  H04B10/116 ,  H05B37/02 ,  G01S1/04 ,  H04B10/114

Abstract: The systems and method disclosed herein include a LCom-enabled luminaire configured to transmit a maintenance trigger encoded in an LCom signal in response to detecting an error or maintenance condition in the LCom-enabled luminaire, receive an access request, transmit maintenance information in response to the access request, and receive correction information to correct the error or maintenance condition. The systems and methods further include a receiver device configured to receive the maintenance trigger, generate the access request based on the maintenance trigger, transmit the access request to the LCom-enabled luminaire, receive maintenance information in response to the access request, and transmit control commands based on the maintenance information.

公开(公告)号：US20200186244A1

公开(公告)日：2020-06-11

申请号：US16642535

申请日：2017-09-13

Applicant: Osram Sylvania Inc.

Inventor： Yang Li ,  Sergio Bermudez

IPC: H04B10/11

Abstract: Techniques are disclosed for decoding light based communication (LBC) messages transmitted between a transmitter device and a receiver device. The receiver device includes a processor that executes a process to decode a received LBC message. The processor determines a moving average and removes the moving average to provide a second digital message (with the moving average removed), to account for any noises or interferences. The moving average may be determined using a length-preserving moving average. The peak location in the second digital message is identified and used as a start position for synchronization when the peak location is above the threshold. Sampling points are derived, and logical maximum and minimum values (1's and 0's) are assigned to one or more of the sampling points. The logical values are decoded to generate a decoded sequence of data representative of the received LBC message.

公开(公告)号：US20200003384A1

公开(公告)日：2020-01-02

申请号：US16022046

申请日：2018-06-28

Applicant: OSRAM SYLVANIA INC.

Inventor： Lawrence Rice

IPC: F21S41/265 ,  F21S41/43 ,  G02B3/04 ,  B60Q1/08 ,  F21S41/143

Abstract: An automotive lighting system (41) includes an automotive lamp having an LED array (14) and a lens (34). The lens (34) images a square field of illumination (101) into rectangular field of illumination (48) to support adaptive front lighting in an automotive environment (28). The lens (34) includes light-transmissive first, second, and third regions (64, 66, 68), and a baffle (70) adapted to obstruct light from spreading between the light-transmissive first, second, and third regions (64, 66, 68). The baffle (70) is disposed between the LED array (14) and light receiving surfaces (98, 104, 110) of the light-transmissive first, second, and third regions (64, 66, 68). The lens (34) enables imaging of an approximately rectangular field of illumination (48) from a single chip (12), reducing cost and cooling needs of adaptive front lighting systems.

公开(公告)号：US10484828B2

公开(公告)日：2019-11-19

申请号：US15127789

申请日：2015-03-24

Applicant: OSRAM SYLVANIA Inc.

Inventor： Christian Breuer ,  Bernhard Siessegger ,  Anant Aggarwal

IPC: H04W24/00 ,  H04W4/029 ,  H04W4/024 ,  G01C21/20 ,  H04B10/116 ,  H05B37/02 ,  G01S19/48 ,  H04W4/02

Abstract: Techniques are disclosed for enhancing indoor navigation using light-based communication (LCom). In some cases, an LCom-enabled luminaire configured as described herein may acquire user data from a local computing device and relay it to a server that tracks and analyzes the data to assess statistics for the luminaire's local spatial environment. The disclosed luminaire may receive from a local computing device a request for indoor navigation to a target of interest, such as a remote computing device. The luminaire may relay that request to a downstream luminaire, which delivers the request to the target. The target may respond with data that allows for tracking of its location and indoor navigation thereto, regardless of whether that target is moving or stationary. In a network of such luminaires, data distribution via inter-luminaire communication may be provided, for example, via an optical interface or other wired or wireless communication.

公开(公告)号：US10364962B2

公开(公告)日：2019-07-30

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: F21V9/30 ,  F21V7/00 ,  G02B27/14 ,  F21V29/502 ,  F21V29/70 ,  F21K9/64

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.