GB2202414A - Transmission of power and/or data - Google Patents
Transmission of power and/or data Download PDFInfo
- Publication number
- GB2202414A GB2202414A GB08705583A GB8705583A GB2202414A GB 2202414 A GB2202414 A GB 2202414A GB 08705583 A GB08705583 A GB 08705583A GB 8705583 A GB8705583 A GB 8705583A GB 2202414 A GB2202414 A GB 2202414A
- Authority
- GB
- United Kingdom
- Prior art keywords
- panel
- bulkhead
- lamp unit
- data
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000005672 electromagnetic field Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
A system in which power or data is transmitted across a panel/bulkhead (14) by means of a low frequency magnetic coupling between a pair of transmission and receiving coils (12, 16) disposed on the two sides of the panel/bulkhead (14), respectively. The system can include a panel mounting lamp unit (22) comprising the receiving coil (16) in series with a diode (18) and an LED (20), the latter components being mounted together in or on a common housing which is adapted to be fitted to the panel/bulkhead (14) at a position opposite to the transmission coil (12). Data from a computer (28, Fig 5) may be coupled to a transmitter (38) via a modulator (32) for reception by a receiver (42). <IMAGE>
Description
Transmission of power and/or data
The present invention is concerned with a means of transmitting power and/or data through a solid member, such as an instrument panel or bulkhead.
There exist many engineering situations where it would be very advantageous if power and/or data could be transmitted locally-between two adjacent positions which are separated by a solid wall, such as a metal plate forming an instrument panel or bulkhead. It is, of course, known in principle to transmit power and data using radio wav.es. However, where a number of transmissions are to be made in closely adjacent positions, radio transmissions have the disadvantage that interference between separate transmission is virtually impossible to avoid with very costly and complex filtering circuitry.
It is one object of the present invention to provide a system which avoids the above-discussed disadvantage of radio waves and which enables large numbers of individual transmitter/receiver pairs to be positioned in relatively close proximity to each other without mutual interference between adjacent channels.
It is another object of the present invention to provide a panel mountable indicator lamp which can be energised.from within a housing structure without requiring any wiring connection through the housing wall.
In accordance with the present invention in its broadest aspect, there. is provided a system in which power or data is transmitted across a panel/bulkhead by means of a low frequency magnetic coupling between a pair of transmission and receiving coils disposed on the two sides of the panel/bulkhead, respectively.
Preferably, the coils are iron-cored so as to produce a concentrated magnetic field. A typical operating frequency is of the order of 200 Hz.
In one type of embodiment, the receiving coil is mounted in series with a rectifier and an LED lamp to form a lamp unit. Preferably, the latter components are encapsulated to form said lamp unit.
Such a lamp unit can be mounted on a panel/bulkhead by any convenient means, e.g. by adhesive or by the use of a blind, screw-threaded hole in the panel/ bulkhead.
In accordance with a second aspect of this invention, there is provided a panel mounting lamp unit comprising a magnetic pick-up coil in series with a diode and an LED, the latter components being mounted together in or on a common housing which is adapted to be fitted to a panel/bulkhead at a position opposite to a magnetic transmission coil disposed on the other side of the panel/bulkhead and capable of emitting a lowfrequency magnetic field.
By arranging fcr the lamp unit to be fitted to the panel/bulkhead without penetrating right through iti the lamp unit can be powered and controlled from the transmission coil side of the panel/bulkhead without requiring any mechanical through-connection.
The invention is described further hereinafter, by way of example only, with reference to the accompanying drawings, in which:
Fig. 1 is a circuit diagram of a basic arrangement in accordance with the present invention;
Fig. 2 is a circuit diagram of a second arrangement in accordance with the present invention for transmitting power through a panel;
Figs. 3 and 4 show diagrammatically two-possible forms of panel-mounted indicator lamps incorporating the present invention and
Fig. 5 is a block circuit diagram of an arrangement in accordance with the present invention for the transmission of both power and data through a panel or bulkhead.
Referring first to Fig. 1, there is shown an osullator 10 energising a transmitter coil 12 to create an alternating electromagnetic flux. This flux penetrates through a panel/bulkhead 14 and induces an
E.M.F. in a receiver coil i6.
The transmitter current may be modulated in order to convey information to a demodulator in the receiver.
Aiternatively, a basic sinusoidal transmitter could convey power to the receiver, which may be rectified
(see below).
Such systems can operate with a wide variety of paneljbulE;head materials. For example, aluminium and its alloys, plastics and stainless steel are all suitable.
Ferrous materials will also function, although with limitations on maximum panel thickness.
Panel mounted components, such as indicator lamps, of conventional design require a through mounting hole which must then be sealed to prevent the ingress of dust, liquids, gasses etc. In some instances the seal must be hermetic, which may be difficult to maintain in the event of bulb changing, rewiring etc.
In the arrangement of Fig. 2, the receiver includes a diode 18 in series with an indicator LED 20 and the receiver coil 16. The elements 16, IS and 20 can be encapsulated to form a unitary component 22 which requires no through mounting hole. Panel sealing integrity is therefore maintained even if any of the elements of the component 22 or the component 22 itself, have to be changed. A zero leakage characteristic for the housing is therefore inherent in this system. The transmitter components can be similarly encapsulated in a transmitter unit 24.
The receiver unit 22 can be mounted by any convenient means, two examples being shown in Figures 3 and 4. In the example of Fig. 3, the transmitter and lamp/receiver units 24, 22 are mounted on the panel/ bulkhead 14 by means of a suitable adhesive. In the example of Fig. 1, the lamp,'receiver unit 22 is mounted in a blind threaded hole 26 and the transmitter unit 24 is mounted on a printed circuit board 25. Typical panel thicknesses may be in the range of 3mm to 6mm but the invention is not limited to this range.
Using'the aforegoing system, it will be appreciated that the following advantages can be obtained
1. Lamps may be replaced (either for repair or colour change) without breaking the panel seal. This can be of particular use in applications where the equipment is exposed to hazardous materials, e.g. in the chemical industry.
2. A lamp/receiver unit 22 can be used to interrogate an instrument's output state and then removed for security reasons.
3. Panel drilling is unnecessary and allows a nanufacturer to change panel designs by moving the mounting position of lamps.
In further applications, data can be superimposed on a carrier and transmitted through a panel. This possiblity is illustrated in Fig. 5 where a data system 28, such as a computer, supplies a control signal on a line 30 to a modulator 32 in which a carrier signal (e.g. 200 Hz), provided by an oscillator 34 on a line 36, can be modified to form a modulated signal to a transmitter 38. Data superimposed on the carrier can thereby be transmitted through the panel 40. Carrier can then be modulated to power and control a receiver unit. Two-way transmission is possible with such a system.
It is preferred to use iron-cored transmission and pick-up coils 12, 16 in the present system so as to produce a concentrated magnetic field. Due to the concentrated and localised nature of the field, indicator lamps can be densely packed without interference problems arising since cross-talk between.
lamps sharing the same panel will not provide sufficient coil voltage to overcome the LED forward voltage of other receiver devices.
Preferably, the transmitted electromagnetic signal is of sinusoidal form but any other suitable waveshape may be used within the ambit of the invention.
Claims (12)
1. A system in which power or data is transmitted across a panel/bulkhead by means of a low frequency magnetic coupling between a pair of transmission and receiving coils disposed on the two sides of the panel/bulkhead, respectively.
2. A system as claimed in claim 1, wherein the coils are iron-cored so as to produce a concentrated magnetic field.
3. A system as claimed in claim 1 or 2, wherein the receiving coil is mounted in series with a rectifier and an LED lamp to form a lamp unit.
4. A system as claimed in claim 3, wherein the receiving coil, the rectifier and the LED are encapsulated to form said lamp unit.
5. A system as claimed in claim 3 or 4, wherein the lamp unit is adapted to be mounted on the panel/ bulkhead by an adhesive or by the use of a blind, screw-threaded recess in the panel/bulkhead.
6. A system as claimed in any of claims 1 to 5, wherein, in order to transmit data through the panel/ bulkhead, the low frequency electromagnetic field transmitted by the transmission coil is modulated by a data signal, the corresponding signal generated in the receiving coil being correspondingly demodulated to recover the data.
7. A system as claimed in any of claims 1 to 5, wherein the transmission coil produces an alternating or electromagnetic field having a frequency of the order of 200Hz.
8. A panel mounting lamp unit comprising a magnetic pick-up coil in series with a diode and an
LED, the latter components being mounted together in or on a common housing which is adapted to be fitted to a panel/bulkhead at a position opposite to a magnetic transmission coil disposed on the other side of the panel/bulkhead and capable of emitting a low-frequency magnetic field.
9. A panel mounting lamp unit as claimed in claim 6, wherein the pick-up coil, the diode and the LED are encapsulated to form said lamp unit.
10. A panel mounting lamp unit as claimed in claim 6 or 7, wherein the lamp unit is adapted to be mounted on the panel/bulkhead by an adhesive or by the use of a blind, screw-threaded recess in the panel/bulkhead.
11. A system for transmitting power or data across a panel/bulkhead, substantially as hereinbefore described with reference to the accompanying drawings.
12. A panel mounting lamp unit substantially as hereinbefore described with reference to and as illustrated in Fig. 2, 3 or 4 of the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08705583A GB2202414A (en) | 1987-03-10 | 1987-03-10 | Transmission of power and/or data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08705583A GB2202414A (en) | 1987-03-10 | 1987-03-10 | Transmission of power and/or data |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8705583D0 GB8705583D0 (en) | 1987-04-15 |
| GB2202414A true GB2202414A (en) | 1988-09-21 |
Family
ID=10613648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08705583A Pending GB2202414A (en) | 1987-03-10 | 1987-03-10 | Transmission of power and/or data |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2202414A (en) |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2238930A (en) * | 1989-11-23 | 1991-06-12 | Woodbridge Marketing Limited | Transmitting signal from sensor to receiver by inductive coupling |
| GB2262634A (en) * | 1991-12-18 | 1993-06-23 | Apple Computer | Inductive power and signal connection. |
| US5325046A (en) * | 1991-12-18 | 1994-06-28 | Apple Computer, Inc. | Inductive wireless data connection |
| US5396538A (en) * | 1991-10-25 | 1995-03-07 | Samsung Electronics Co., Ltd. | Contactless digital power transmission and reception system in a radio telephone |
| GB2295293A (en) * | 1994-11-16 | 1996-05-22 | Allan Robert Edward Yapp | Communication through a barrier |
| US5625883A (en) * | 1993-12-24 | 1997-04-29 | U.S. Philips Corporation | System for wireless information transmission between two different rooms |
| DE19544474A1 (en) * | 1995-11-29 | 1997-06-05 | Abb Patent Gmbh | Controlled access to internal building systems |
| US5736967A (en) * | 1993-09-03 | 1998-04-07 | Kayser Ventures, Ltd. | Article-information display system using electronically controlled tags |
| US6181299B1 (en) | 1993-09-03 | 2001-01-30 | Display Edge Technology, Ltd. | Power and communication system for electronic display tags |
| US6219529B1 (en) * | 1994-07-19 | 2001-04-17 | Seiko Instruments Inc. | Wireless communication system using only the magnetic field component |
| GB2355622A (en) * | 1999-07-22 | 2001-04-25 | Jme Ltd | Signalling through steel walls |
| US6266052B1 (en) | 1993-09-03 | 2001-07-24 | Display Edge Technology, Ltd. | Power and information distribution system for article display or storage areas and related method |
| EP1986339A1 (en) * | 2007-04-25 | 2008-10-29 | Alcatel Lucent | Radiofrequency signal repeater device using electromagnetic coupling |
| DE102008024780A1 (en) * | 2008-05-23 | 2009-11-26 | Osram Gesellschaft mit beschränkter Haftung | Wireless light source |
| DE102010029249A1 (en) * | 2010-05-25 | 2011-12-01 | Osram Gesellschaft mit beschränkter Haftung | Semiconductor lamp and method of operating a semiconductor lamp |
| GB2485782A (en) * | 2010-09-20 | 2012-05-30 | Wfs Technologies Ltd | Low frequency electromagnetic signals are passed through a barrier comprising electrically conductive and electrically insulative layers |
| ITMI20130234A1 (en) * | 2013-02-20 | 2014-08-21 | Messersi Packaging Srl | ROTARY WRAPPING MACHINE FOR PACKAGING OBJECTS. |
| AT14261U1 (en) * | 2014-01-10 | 2015-07-15 | Tridonic Gmbh & Co Kg | Control gear and communication adapter for outdoor use |
| EP2577835A4 (en) * | 2010-06-03 | 2016-01-06 | Powerkiss Oy | An arrangement for a charger |
| US10054302B2 (en) | 2014-01-10 | 2018-08-21 | Tridonic Gmbh & Co Kg | Operating device and communications adapter for outdoor use |
| WO2019135061A1 (en) * | 2018-01-05 | 2019-07-11 | Airspan Networks Inc. | An apparatus and method for facilitating communication between a telecommunications network and a user device within a building |
| US11284491B2 (en) | 2011-12-02 | 2022-03-22 | Lynk Labs, Inc. | Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same |
| US11297705B2 (en) | 2007-10-06 | 2022-04-05 | Lynk Labs, Inc. | Multi-voltage and multi-brightness LED lighting devices and methods of using same |
| US11317495B2 (en) | 2007-10-06 | 2022-04-26 | Lynk Labs, Inc. | LED circuits and assemblies |
| US11528792B2 (en) | 2004-02-25 | 2022-12-13 | Lynk Labs, Inc. | High frequency multi-voltage and multi-brightness LED lighting devices |
| US11566759B2 (en) | 2017-08-31 | 2023-01-31 | Lynk Labs, Inc. | LED lighting system and installation methods |
| US11638336B2 (en) | 2004-02-25 | 2023-04-25 | Lynk Labs, Inc. | AC light emitting diode and AC LED drive methods and apparatus |
| US11678420B2 (en) | 2004-02-25 | 2023-06-13 | Lynk Labs, Inc. | LED lighting system |
| US11953167B2 (en) | 2011-08-18 | 2024-04-09 | Lynk Labs, Inc. | Devices and systems having AC LED circuits and methods of driving the same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778072A (en) * | 1954-04-09 | 1957-07-03 | Frank Walter Holland | Improvements in electrical table lamps |
| GB1319412A (en) * | 1969-12-17 | 1973-06-06 | Int Standard Electric Corp | Inter-compartment coupling device |
| EP0145430A2 (en) * | 1983-12-09 | 1985-06-19 | Cochlear Corporation | Signal transmission system |
| EP0179536A2 (en) * | 1984-10-22 | 1986-04-30 | Cochlear Pty., Ltd. | Improvements in power transfer for implanted prostheses |
-
1987
- 1987-03-10 GB GB08705583A patent/GB2202414A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB778072A (en) * | 1954-04-09 | 1957-07-03 | Frank Walter Holland | Improvements in electrical table lamps |
| GB1319412A (en) * | 1969-12-17 | 1973-06-06 | Int Standard Electric Corp | Inter-compartment coupling device |
| EP0145430A2 (en) * | 1983-12-09 | 1985-06-19 | Cochlear Corporation | Signal transmission system |
| EP0179536A2 (en) * | 1984-10-22 | 1986-04-30 | Cochlear Pty., Ltd. | Improvements in power transfer for implanted prostheses |
Non-Patent Citations (1)
| Title |
|---|
| WO A1 84/04212 * |
Cited By (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2238930A (en) * | 1989-11-23 | 1991-06-12 | Woodbridge Marketing Limited | Transmitting signal from sensor to receiver by inductive coupling |
| US5396538A (en) * | 1991-10-25 | 1995-03-07 | Samsung Electronics Co., Ltd. | Contactless digital power transmission and reception system in a radio telephone |
| GB2262634A (en) * | 1991-12-18 | 1993-06-23 | Apple Computer | Inductive power and signal connection. |
| US5325046A (en) * | 1991-12-18 | 1994-06-28 | Apple Computer, Inc. | Inductive wireless data connection |
| GB2262634B (en) * | 1991-12-18 | 1995-07-12 | Apple Computer | Power connection scheme |
| US5455467A (en) * | 1991-12-18 | 1995-10-03 | Apple Computer, Inc. | Power connection scheme |
| US6181299B1 (en) | 1993-09-03 | 2001-01-30 | Display Edge Technology, Ltd. | Power and communication system for electronic display tags |
| US5736967A (en) * | 1993-09-03 | 1998-04-07 | Kayser Ventures, Ltd. | Article-information display system using electronically controlled tags |
| US6266052B1 (en) | 1993-09-03 | 2001-07-24 | Display Edge Technology, Ltd. | Power and information distribution system for article display or storage areas and related method |
| US5625883A (en) * | 1993-12-24 | 1997-04-29 | U.S. Philips Corporation | System for wireless information transmission between two different rooms |
| US6219529B1 (en) * | 1994-07-19 | 2001-04-17 | Seiko Instruments Inc. | Wireless communication system using only the magnetic field component |
| GB2295293A (en) * | 1994-11-16 | 1996-05-22 | Allan Robert Edward Yapp | Communication through a barrier |
| DE19544474A1 (en) * | 1995-11-29 | 1997-06-05 | Abb Patent Gmbh | Controlled access to internal building systems |
| GB2355622A (en) * | 1999-07-22 | 2001-04-25 | Jme Ltd | Signalling through steel walls |
| US11528792B2 (en) | 2004-02-25 | 2022-12-13 | Lynk Labs, Inc. | High frequency multi-voltage and multi-brightness LED lighting devices |
| US11638336B2 (en) | 2004-02-25 | 2023-04-25 | Lynk Labs, Inc. | AC light emitting diode and AC LED drive methods and apparatus |
| US11678420B2 (en) | 2004-02-25 | 2023-06-13 | Lynk Labs, Inc. | LED lighting system |
| EP1986339A1 (en) * | 2007-04-25 | 2008-10-29 | Alcatel Lucent | Radiofrequency signal repeater device using electromagnetic coupling |
| US11297705B2 (en) | 2007-10-06 | 2022-04-05 | Lynk Labs, Inc. | Multi-voltage and multi-brightness LED lighting devices and methods of using same |
| US11729884B2 (en) | 2007-10-06 | 2023-08-15 | Lynk Labs, Inc. | LED circuits and assemblies |
| US11317495B2 (en) | 2007-10-06 | 2022-04-26 | Lynk Labs, Inc. | LED circuits and assemblies |
| DE102008024780A1 (en) * | 2008-05-23 | 2009-11-26 | Osram Gesellschaft mit beschränkter Haftung | Wireless light source |
| DE102010029249B4 (en) * | 2010-05-25 | 2013-03-28 | Osram Gmbh | Semiconductor lamp |
| DE102010029249A1 (en) * | 2010-05-25 | 2011-12-01 | Osram Gesellschaft mit beschränkter Haftung | Semiconductor lamp and method of operating a semiconductor lamp |
| EP2577835A4 (en) * | 2010-06-03 | 2016-01-06 | Powerkiss Oy | An arrangement for a charger |
| GB2485782A (en) * | 2010-09-20 | 2012-05-30 | Wfs Technologies Ltd | Low frequency electromagnetic signals are passed through a barrier comprising electrically conductive and electrically insulative layers |
| US11953167B2 (en) | 2011-08-18 | 2024-04-09 | Lynk Labs, Inc. | Devices and systems having AC LED circuits and methods of driving the same |
| US12028947B2 (en) | 2011-12-02 | 2024-07-02 | Lynk Labs, Inc. | Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same |
| US11284491B2 (en) | 2011-12-02 | 2022-03-22 | Lynk Labs, Inc. | Color temperature controlled and low THD LED lighting devices and systems and methods of driving the same |
| WO2014128587A1 (en) * | 2013-02-20 | 2014-08-28 | Messersi' Packaging Srl | Rotary wrapping machine for packaging objects |
| RU2661366C2 (en) * | 2013-02-20 | 2018-07-16 | Мессерси' Пэкеджинг Срл | Rotary wrapping machine for packaging objects |
| ITMI20130234A1 (en) * | 2013-02-20 | 2014-08-21 | Messersi Packaging Srl | ROTARY WRAPPING MACHINE FOR PACKAGING OBJECTS. |
| US10144542B2 (en) | 2013-02-20 | 2018-12-04 | Messersi' Packaging Srl | Rotary wrapping machine for packaging objects |
| AT14261U1 (en) * | 2014-01-10 | 2015-07-15 | Tridonic Gmbh & Co Kg | Control gear and communication adapter for outdoor use |
| US10054302B2 (en) | 2014-01-10 | 2018-08-21 | Tridonic Gmbh & Co Kg | Operating device and communications adapter for outdoor use |
| US11566759B2 (en) | 2017-08-31 | 2023-01-31 | Lynk Labs, Inc. | LED lighting system and installation methods |
| US12104766B2 (en) | 2017-08-31 | 2024-10-01 | Lynk Labs, Inc. | LED lighting system and installation methods |
| US10659156B2 (en) | 2018-01-05 | 2020-05-19 | Airspan Networks Inc. | Apparatus and method for facilitating communication between a telecommunications network and a user device within a building |
| WO2019135061A1 (en) * | 2018-01-05 | 2019-07-11 | Airspan Networks Inc. | An apparatus and method for facilitating communication between a telecommunications network and a user device within a building |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8705583D0 (en) | 1987-04-15 |
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