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    Light-based communication (LCom) visual hotspots
    102.
    发明授权
    Light-based communication (LCom) visual hotspots 有权

    公开(公告)号：US10033461B2

    公开(公告)日：2018-07-24

    申请号：US15128052

    申请日：2015-03-25

    Applicant: OSRAM SYLVANIA Inc.

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

    IPC: H04B10/116 ,  H04B10/114 ,  H04W4/02 ,  H04W4/00 ,  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).

    SOLID STATE LIGHT SOURCE DRIVER ESTABLISHING BUCK OR BOOST OPERATION
    104.
    发明申请
    SOLID STATE LIGHT SOURCE DRIVER ESTABLISHING BUCK OR BOOST OPERATION 审中-公开

    公开(公告)号：US20180013357A1

    公开(公告)日：2018-01-11

    申请号：US15657371

    申请日：2017-07-24

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Fred Palmer

    IPC: H02M7/06 ,  H02M3/158 ,  H05B33/08

    CPC classification number: H02M7/06 ,  H02M1/42 ,  H02M1/4208 ,  H02M3/1582 ,  H02M7/2176 ,  H02M2001/4275 ,  H05B33/0815 ,  H05B33/0848 ,  H05B33/0896 ,  Y02B20/347

    Abstract: A solid state light source driver circuit that operates in either a buck convertor or a boost convertor configuration is provided. The driver circuit includes a controller, a boost switch circuit and a buck switch circuit, each coupled to the controller, and a feedback circuit, coupled to the light source. The feedback circuit provides feedback to the controller, representing a DC output of the driver circuit. The controller controls the boost switch circuit and the buck switch circuit in response to the feedback signal, to regulate current to the light source. The controller places the driver circuit in its boost converter configuration when the DC output is less than a rectified AC voltage coupled to the driver circuit at an input node. The controller places the driver circuit in its buck converter configuration when the DC output is greater than the rectified AC voltage at the input node.

    TECHNIQUES FOR INDOOR NAVIGATION WITH HAZARD AVOIDANCE VIA LIGHT-BASED COMMUNICATION
    106.
    发明申请
    TECHNIQUES FOR INDOOR NAVIGATION WITH HAZARD AVOIDANCE VIA LIGHT-BASED COMMUNICATION 有权

    公开(公告)号：US20170180045A1

    公开(公告)日：2017-06-22

    申请号：US15127478

    申请日：2015-03-24

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Christian Breuer ,  Bernhard Siessegger ,  Anant Aggarwal

    IPC: H04B10/116 ,  G01C21/20

    CPC classification number: H04B10/116 ,  F21V33/0076 ,  G01C21/20 ,  G01C21/206 ,  G01V1/00 ,  G08B17/00 ,  G08B21/12 ,  G08B25/009 ,  H04B10/502 ,  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 or have access to a sensor configured to detect a 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.

    Communication system with variable output supply current
    109.
    发明授权
    Communication system with variable output supply current 有权
    具有可变输出电源电流的通信系统

    公开(公告)号：US09379608B2

    公开(公告)日：2016-06-28

    申请号：US14593872

    申请日：2015-01-09

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Marc Hoffknecht ,  Javier Orlando Rojas ,  Liam John O'Hagan

    IPC: H02M3/156 ,  G06F1/26 ,  H04L12/10 ,  H04L12/40 ,  H05B37/02

    CPC classification number: H02M3/156 ,  G06F1/26 ,  H04L12/10 ,  H04L12/40045 ,  H05B37/0227

    Abstract: A system including a bus and a plurality of devices coupled thereto and configured to communicate with each other via the bus. The system further includes a power supply coupled to the bus, to power to the plurality of devices via the bus and to detect an event, and in response, alternately supply power to the plurality of devices via the bus at a first current level or at a lesser second current level. This allows additional devices to be used on a bus, even where the total power consumption of the devices would normally exceed a maximum defined by a bus architecture. This also helps allow a single gauge of wire to be used throughout a bus network (even where long lengths of wire are required) while still providing sufficient power to the devices connected to the bus.

    Abstract translation: 一种包括总线和耦合到其上并被配置为经由总线相互通信的多个设备的系统。 该系统还包括耦合到总线的电源，经由总线对多个设备供电并检测事件，并且作为响应，经由总线以第一电流或第二电流交替地向多个设备供电 较低的当前水平。 这允许在总线上使用附加设备，即使设备的总功耗通常会超过由总线架构定义的最大值。 这还有助于在整个总线网络（即使需要较长的电线）的同时，也可以在连接到总线的设备上提供足够的电力，从而使单线规线被使用。

    Multiple strike ballast with lamp protection for electrodeless lamp
    110.
    发明授权
    Multiple strike ballast with lamp protection for electrodeless lamp 有权
    多重镇流器，带无极灯灯管保护

    公开(公告)号：US09301375B2

    公开(公告)日：2016-03-29

    申请号：US14064837

    申请日：2013-10-28

    Applicant: OSRAM SYLVANIA Inc.

    Inventor： Nitin Kumar ,  Markus Ziegler ,  Shashank Bakre ,  Ayan Choudhury

    IPC: H05B37/02 ,  H05B41/16 ,  H05B41/28 ,  H01J65/04

    CPC classification number: H05B41/16 ,  H01J65/048 ,  H05B41/2806 ,  Y02B20/22

    Abstract: A multi-strike ballast to ignite an electrodeless lamp is disclosed, and includes an inverter circuit, a protection circuit, and a controller. The inverter circuit, upon activation, sends an ignition pulse to the lamp. The inverter circuit shuts down upon receiving a deactivation signal, and activates upon receiving an activation signal, triggering another ignition pulse. The protection circuit senses a change in a voltage associated with the lamp. The sensed changed may indicate that the lamp has not yet ignited or that the lamp is broken. The controller receives the sensed change in voltage and, in response, sends a deactivation signal to the inverter circuit. The controller waits a predetermined time and then sends an activation signal to the inverter circuit. The controller repeats until a change in voltage associated with the lamp is not sensed, or until a predefined number of repeats occur, providing multiple ignition pulses to the lamp.

    Abstract translation: 公开了一种点燃无电极灯的多冲击镇流器，包括逆变器电路，保护电路和控制器。 逆变器电路在激活时向灯发出点火脉冲。 逆变器电路在接收到去激活信号时关闭，并在接收到激活信号时激活，触发另一个点火脉冲。 保护电路检测与灯相关的电压的变化。 所感测到的变化可能指示灯还没有被点燃或灯被破坏。 控制器接收感测到的电压变化，作为响应，向逆变器电路发送去激活信号。 控制器等待预定时间，然后将激活信号发送到逆变器电路。 控制器重复，直到没有检测到与灯相关的电压变化，或直到发生预定数量的重复，向灯提供多个点火脉冲。

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