Intellectual Property
PowerMOS filed US and EU patents from the very start of its PLC product line. Owned patents plus formal licenses cover controller signaling, the high-speed protocol, address writing, bulb-swap detection and bead packaging — choosing PowerMOS means choosing full IP protection too.
Own Patents
The patentee (assignee) of every patent below is Power MOS Electronics Ltd..
Filed 2025-10-07Granted 2026-03-24
In a series-connected color-mixing string, each driving channel opens in its own non-overlapping slot; after the third channel, the driver turns on a compensation channel whose current keeps the next bead in the series at the same drive current — every stage gets the same power for uniform color and brightness.
Filed 2025-05-14Granted 2025-10-21
The controller periodically measures total string power; when the change between two periods exceeds a standby threshold it runs a new-address search, finds the newly installed bulb and records it in the address table — users swap bulbs themselves, no vendor repair needed.
Filed 2020-12-30Granted 2021-10-19
The command signal alternates high and low levels, and the duration of every high and every low level each carries one bit — no fast switching needed, so efficiency rises and distortion falls. The core patent behind the "both levels carry data" high-speed protocol.
Filed 2020-03-17Granted 2020-11-03
In a parallel LED system, the main controller treats a rise in total consumption above a threshold as a newly installed LED and sends an address-writing signal; only the LED with an empty memory stores the address — automatic re-addressing after a swap, no professional help needed.
Filed 2018-10-25Granted 2019-06-04
Describes the address-detection method for parallel-structured LED string systems — the core patent for automatic detection of faulty beads and re-addressing after replacement in parallel applications such as copper-wire and curtain lights.
Filed 2016-02-03Granted 2018-11-06
Describes a system and method for controlling a light string via power-line carrier and addressing it with a photoelectric (camera) device — the core patent behind the "camera addressing" application for pixel strings.
Also granted in the European Union (EP 3174371, priority 2015-09-25), covering the UK, Germany, France, Spain, Italy, Belgium and more.
Licensed Patents
PowerMOS combines in-house R&D with strategic alliances. The patents below are all formally licensed under signed agreements, valid for the full term of each patent. Patent rights remain with their owners.
| Patent no. | Granted | Patent name | Coverage |
|---|---|---|---|
| US 10,187,935 B2 | 2019-01-22 | Light Emitting Diode Lamp with Burnable Function and Light Emitting Diode Lamp String with Burnable Function | LED bead and string with address burning |
| US 9,939,117 B1 | 2018-04-10 | Light Emitting Diode System with Light Signals Carried via Power Lines | LED system with light signals carried on power lines |
| US 9,930,734 B2 | 2018-03-27 | LED Lamp with Burnable Function and LED String with Burnable Function | LED beads given an address by a burning process, individually or on the string |
| US 9,380,662 B1 | 2016-06-28 | LED Driving System with Lighting Signal Carry via Power | System for driving LED strings via power-line carrier |
| US 9,173,259 B1 | 2015-10-27 | LED Driving System and LED Lamp | LED driving system and lamp |
| US 9,060,395 B1 | 2015-06-16 | LED Driver System | LED driver system |
| US 8,928,233 B1 | 2015-01-06 | LED Control Circuit with Carry Signal Control and Package Structure for the Same | Power-signal carrier control and package structure |
| US 8,884,535 B2 | 2014-11-11 | LED Control System Using Modulation Signal | Modulation-signal LED control system |
| US 8,134,299 B2 | 2012-03-13 | LED Control System Using Modulation Signal | Modulation-signal LED control system |
| Patent no. | Granted | Patent name | Coverage |
|---|---|---|---|
| US 10,129,959 B2 | 2018-11-13 | Light Apparatus Based on Power Supply Line Edge Signals | Lamp controlled by power-line edge signals (single-level carrier) |
| Patent no. | Granted | Patent name | Coverage |
|---|---|---|---|
| US 9,635,721 B2 | 2017-04-25 | LED Package Structure with an Integrated Pin to Transmit Operation Power and Control Signals | SMD / through-hole package integrating RGB beads with one driver chip, controlled by PWM power-line carrier (also Europe Nr 20 2015 105 741) |
Coverage
The patents above cover the controller’s signaling method, the high-speed protocol that encodes both levels, the string’s connection structure, address implantation and automatic re-addressing, power compensation in series strings, new-bulb detection by power change, optical addressing on a two-wire basis, and the bead’s package structure — any pixel-control application using power-line carrier falls within this patent net. All patents are also filed in China.
PowerMOS has cultivated the US and European markets for years, and patent protection is the foundation of customer confidence. We commit that all Power MOS Electronics customers are protected by this patent net; for original patent documents or any concern about related claims in the market, write to cj@powermos.com — we’re glad to provide full documentation and professional counsel.
When choosing a chip supplier, the patent position determines whether a product can enter mainstream US and European channels with confidence. Partner with PowerMOS and get the technical and legal foundation in one move.
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