公开(公告)号：US4675574A

公开(公告)日：1987-06-23

申请号：US798975

申请日：1985-11-18

Applicant: Robert J. Delflache

Inventor： Robert J. Delflache

IPC: G01R31/44 ,  H05B37/03 ,  H01J1/60

CPC classification number: H05B37/03 ,  G01R31/44 ,  H05B37/036

Abstract: A monitoring device for use with a loop circuit including a plurality of lights, which includes a monitoring current transformer having a magnetic core with a primary circuit connected in series with the loop and a secondary circuit coupled to the primary circuit, the primary circuit being arranged such that the loop current saturates the transformer core and the secondary circuit being in open-circuit condition, the monitoring current transformer generating a monitoring voltage signal in response to each inversion of the loop current. The monitoring voltage signal is used to generate a window signal during the time interval when the monitoring voltage signal has a significant value and the window signal is then used to control the integration of a signal representative of the loop voltage with a view to producing a detecting signal which is indicative of the number of defective lights. The integration time interval is thereby determined whatever the loop current waveform may be.

Abstract translation: 一种与包括多个光的环路电路一起使用的监视装置，其包括具有与所述环路串联连接的初级电路的磁芯的监视电流互感器和耦合到所述主电路的次级电路，所述主电路被布置 使得环路电流使变压器铁芯和次级电路处于开路状态饱和，监测电流互感器响应于环路电流的每次反转产生监测电压信号。 监视电压信号用于在监视电压信号具有有效值的时间间隔期间产生窗口信号，然后窗口信号用于控制表示环路电压的信号的积分，以产生检测 信号，表示有缺陷灯的数量。 因此，无论环路电流波形如何，都可以确定积分时间间隔。

公开(公告)号：US4572987A

公开(公告)日：1986-02-25

申请号：US586921

申请日：1984-03-07

Applicant: Derek M. Embrey ,  Stuart F. Webb ,  Graham J. Legg

Inventor： Derek M. Embrey ,  Stuart F. Webb ,  Graham J. Legg

IPC: B60Q11/00 ,  G01R31/28 ,  H01J1/60

CPC classification number: B60Q11/00 ,  G01R31/2829

Abstract: In order to provide a lamp failure warning in both illuminated and unilluminated states of the lamp, there is provided a resistance bridge circuit Rs, L, R2 and R3 which is substantially in balance if the lamp L is sound. An amplifier IC1 acts as a detection means if the bridge goes out of balance as a consequence of failure of the lamp L. In the unilluminated state a reduced current is fed to the bridge via a high value resistance R1, which is by-passed by a lamp switch SW1 if the lamp is to receive enough power to illuminate it.

Abstract translation: 为了在灯的照明和未照明状态下提供灯故障警告，提供了电阻桥电路Rs，L，R2和R3，其如果灯L是声音则基本上是平衡的。 放大器IC1用作检测装置，如果灯由于灯L的故障而失去平衡。在非发光状态下，经过高电阻R1的电流R1被馈送到电桥，该电阻被旁路的高电阻R1 灯开关SW1，如果灯要接收足够的电力来照亮它。

公开(公告)号：US4484105A

公开(公告)日：1984-11-20

申请号：US437245

申请日：1982-10-28

Applicant: Richard J. Kriete ,  Rafael R. Orsini ,  Leon Weinglass

Inventor： Richard J. Kriete ,  Rafael R. Orsini ,  Leon Weinglass

IPC: G09G3/14 ,  H04M3/62 ,  H01J1/60

CPC classification number: H04M3/62 ,  G09G3/14

Abstract: A circuit for selectively lighting one of a pair of light-emitting diodes (LEDs) arranged in a parallel, back-to-back, circuit configuration also known as an anti-parallel circuit configuration. One side of the configuration is connected with ground connecting means through a first photon-emitting device which device is optically coupled to a first photon-responsive device connected between the other side of the configuration and a current source. The other side of the configuration is also connected with a ground connecting means through a second photon-emitting device which device is optically coupled to a second photon-responsive device connected between the first side of the configuration and the current source. Shunting means having a resistance value larger than the value of the first or second photon-responsive device when either is conducting is connected in parallel across the first photon-responsive device such that when ground is connected to one side of the configuration current flows from the source of current through the shunting means and the first photon-emitting device causing the first photon-emitting device to emit photons which impinge on the first photon-responsive device driving it into conduction to bypass the shunting means thereby allowing sufficient current to flow through and ignite one of the pair of LEDs. Similarly, when ground is connected to the other side of the configuration current flows from the current source through the shunting means and the second photon-emitting device causing it to emit photons which impinge on the second photon-responsive device driving it into conduction to bypass the shunting means such that current flows through and ignites the other of the pair of LEDs. The circuit can also be used in a switching matrix.

Abstract translation: 一种电路，用于选择性地点亮以并行，背对背电路配置布置的一对发光二极管（LED）中的一个，也称为反并联电路配置。 该配置的一侧通过第一光子发射装置与接地连接装置连接，该第一光子发射装置光学耦合到连接在该配置的另一侧和电流源之间的第一光子响应装置。 该配置的另一侧还通过第二光子发射装置与地面连接装置连接，该装置光学耦合到连接在配置的第一侧和电流源之间的第二光子响应装置。 在第一光子响应装置并联连接时，具有大于第一或第二光子响应装置的值的电阻值的分流装置，使得当接地连接到配置电流的一侧时， 通过分流装置的电流源和第一光子发射装置使得第一光子发射装置发射入射到第一光子响应装置的光子，从而驱动它进行导通以绕过分流装置，从而允许足够的电流流过， 点燃一对LED。 类似地，当接地连接到配置的另一侧时，电流从电流源通过分流装置流动，并且第二光子发射装置使其发射入射到第二光子响应装置的光子，从而将其导通到旁路 分流装置使得电流流过并点燃该对LED中的另一个。 该电路也可用于开关矩阵。

公开(公告)号：US4464605A

公开(公告)日：1984-08-07

申请号：US359268

申请日：1982-03-18

Applicant: David E. Ford, Jr. ,  Daniel G. Kannenberg

Inventor： David E. Ford, Jr. ,  Daniel G. Kannenberg

IPC: H02M5/257 ,  H05B37/03 ,  H01J1/60

CPC classification number: H02M5/2573 ,  H05B37/03

Abstract: In a pilot light usable for monitoring industrial control circuits a set of three terminals comprising a signal terminal, a test terminal and a line, or return terminal, with a signal circuit network between the signal and line terminals that supplies current to a lamp when a voltage is applied to the signal terminal, and with a test circuit network between the test and line terminals that supplies current to the lamp when a voltage is applied to the test terminal. Each circuit network includes a triac and a trigger branch subcircuit for controlling the associated triac.

Abstract translation: 在可用于监测工业控制电路的导频灯中，包括信号端子，测试端子和线路或返回端子的一组三个端子，在信号和线路端子之间的信号电路网络中，当信号线路 电压施加到信号端子，并且在向测试端子施加电压时，在测试线路和线路端子之间提供电流的测试电路网络。 每个电路网络包括用于控制相关联的三端双向可控硅开关元件的三端双向可控硅开关和触发分支支路。

公开(公告)号：US3548402A

公开(公告)日：1970-12-15

申请号：US3548402D

申请日：1966-10-10

Applicant: SANDERS ASSOCIATES INC

Inventor： SCHUMACHER ARNOLD

IPC: G09G1/10 ,  H01J1/60

CPC classification number: G09G1/10

公开(公告)号：US10917958B2

公开(公告)日：2021-02-09

申请号：US16813097

申请日：2020-03-09

Applicant: Lutron Ketra, LLC

Inventor： Mark Quilling ,  Rebecca Frank ,  Kenneth Priester

IPC: H01J1/60 ,  H01J7/42 ,  H05B37/04 ,  H05B47/19 ,  H05B45/10 ,  H05B45/20 ,  G06F3/0489 ,  H01H13/02

Abstract: An illumination system and method is disclosed for maintaining a consistent change in illumination value among a group of illumination devices whenever a change command is manually sent from a keypad to those illumination devices. The consistent change results from maintaining a common start illumination value among not only the group, but also the keypad which controls the group. From the start illumination value, the keypad can then compute an end illumination value depending upon the amount of time that the increase or decrease in illumination value button is depressed and held. Since the start change signal can arrive on different illumination devices within the group depending upon where each illumination device is geographically located, a masking time is reserved after the button is released so that enough time is allocated for each of the illumination devices within that group to arrive at a common end illumination value regardless of their disparate location to the keypad, the number of hops or interference therebetween.

公开(公告)号：US10219356B2

公开(公告)日：2019-02-26

申请号：US15621536

申请日：2017-06-13

Applicant: RAB Lighting Inc.

Inventor： Ross A. Barna ,  Michael Theodore Case-Hayes ,  Ankit Sanghvi ,  Jason Lawrence Oliver

IPC: H01J1/60 ,  H01J7/42 ,  H05B37/04 ,  H05B37/02 ,  H04W24/08 ,  H04W88/16 ,  H04L29/08 ,  H04L12/28 ,  H04W4/70 ,  H04W84/18 ,  H04W12/06

Abstract: Wireless lighting control systems and methods for controlling the illumination of one or more light fixtures are disclosed, including self-commissioning of hardware. Embodiments include a server connected to a wide area network and having software for configuring, monitoring, and controlling lighting fixtures at a site. The control system also includes a wireless gateway at the site initiating communication with the server via a cellular network. Wireless devices initiate communication with the wireless gateway via a mesh network and each wireless device can be wired to control at least one lighting fixture. Once hardware of the site system (e.g., a gateway and/or any device) is mounted or positioned in the appropriate location and powered on, the hardware will self-commission by automatically initiating communications. The gateway will initiate communication and identify itself to server system. When the devices are powered on, they identify themselves to the gateway and the gateway can inform the server system of the devices.

公开(公告)号：US10175738B2

公开(公告)日：2019-01-08

申请号：US15253228

申请日：2016-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Hyeong-Gwon Kim

IPC: H01J1/60 ,  H01J7/42 ,  H05B37/04 ,  H01B13/30 ,  G06F1/32 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  G06F1/16 ,  H01L51/56

Abstract: A foldable display apparatus, a method of manufacturing the same, and a controlling method of the same are disclosed. The foldable display apparatus includes a substrate including a metal thin film and an insulating layer provided on the metal thin film, an organic light-emitting unit formed on the substrate and emitting light in an direction away from the substrate, and a thin film encapsulating layer for encapsulating the organic light-emitting unit. The foldable display apparatus may be folded in a direction such that the metal thin film is exposed.

公开(公告)号：US10136493B2

公开(公告)日：2018-11-20

申请号：US15727864

申请日：2017-10-09

Applicant: LEVITON MANUFACTURING CO., INC.

Inventor： Robert L. Hick

IPC: H01J1/60 ,  H01J7/42 ,  H05B37/04 ,  H05B33/08 ,  H05B37/02

Abstract: A system monitors operational status of a lighting element. A lighting fixture processor instructs a lighting element to illuminate at a predetermined time, receives sensed light level information from the light sensing element, and transmits a message including information representing the sensed light level. A room controller can control some or all of these steps. A daylighting arrangement includes a room controller that instructs the lighting fixtures of a lighting group to illuminate their lighting elements at a predetermined time of day. Sensed light level information is obtained and transmitted to the room controller, which determines an initial daylighting target for the lighting fixture group based on an average of the sensed light level information. The room controller instructs the lighting fixtures to illuminate their respective lighting elements in accordance with the initial daylighting target.

公开(公告)号：US09986624B2

公开(公告)日：2018-05-29

申请号：US15645109

申请日：2017-07-10

Applicant: PHILIPS LIGHTING HOLDING B.V.

Inventor： Jurgen Mario Vangeel ,  Mark Henricus Verberkt ,  Peter Fitski

IPC: H01J1/60 ,  H01J7/42 ,  H05B37/04 ,  H05B37/02 ,  H04B10/116 ,  F24F11/00 ,  G06F9/445 ,  G06F9/44 ,  H04L29/08 ,  G05B19/04 ,  G05B15/02

CPC classification number: H05B37/0245 ,  F24F11/30 ,  F24F11/62 ,  G05B15/02 ,  G05B19/04 ,  G05B2219/163 ,  G05B2219/2642 ,  G06F8/61 ,  G06F8/63 ,  G06F8/65 ,  G06F8/654 ,  G06F8/658 ,  H04B10/116 ,  H04B10/502 ,  H04L67/34 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0254 ,  H05B37/0263 ,  H05B37/0272 ,  H05B37/029 ,  Y02B20/44

Abstract: Lighting units, systems, and methods are described herein for determining whether occupancy detections are legitimate or not. Methods and systems are further described herein for powering down a network of power over ethernet (PoE) components.