# US 2014/0197755 A1 · An acoustic ceiling for a capacitive power transfer system

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0197755 A1
- Document ID: US20140197755A1
- Status: Published application
- Kind: A1
- Application number: 14/238,853
- Filed: 2012-08-02
- Published: 2014-07-17
- Earliest claimed: 2011-08-16
- Assignees: Koninklijke Philips N.V.
- Inventors: Oscar Hendrikus Willemsen; Theodorus Johannes Petrus Van Den Biggelaar; Giovanni Cennini
- Web page: https://patentgrep.com/patent/US20140197755A1

## CPC

- H04B 5/22: Capacitive coupling
- E04B 9/001: {characterised by provisions for heat or sound insulation}
- E04B 9/045: {being laminated}
- H02J 50/05: using capacitive coupling
- H02J 50/10: using inductive coupling
- H02J 50/12: of the resonant type
- H04B 5/79: for data transfer in combination with power transfer
- H05B 45/00: Circuit arrangements for operating light-emitting diodes [LED]
- H05B 47/10: Controlling the light source
- H05B 45/60: Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
- H04B: TRANSMISSION
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

## Abstract

An acoustic ceiling tile (200) operating as a capacitive power transfer sys tem comprises a first layer (231) comprising a non-conductive material; at least a pair of receiver electrodes (220, 221) of the capacitive power transfer system configured on a first side of the first layer; a foam layer (240) having a side substantially covered with the first layer; and a load (210) connected to an inductor (212) and to the pair of receiver electrodes, wherein the load and the inductor are configured in a chamber formed between the first layer and the foam layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes (220, 221)to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

## Claims

### Claim 1

An acoustic ceiling tile operating as a capacitive power transfer system, comprising:
a first layer comprising a non-conductive material;
at least a pair of receiver electrodes of the capacitive power transfer system configured on a first side of the first layer;
a foam layer having a side substantially covered with the first layer; and
a load connected to an inductor and to the pair of receiver electrodes, wherein the load and the inductor are configured in a chamber formed between the first layer and the foam layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes to power the load when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

### Claim 2 (depends on 1)

The acoustic ceiling tile of claim 1, wherein:
the at least a pair of transmitter electrodes of the capacitive power transfer system are configured on a second side of the first layer, wherein the first and second sides of the first layer are opposite to each other; and
a second layer is configured to substantially cover a side of the foam layer opposite a side covered by the first layer.

### Claim 3 (depends on 1)

The acoustic ceiling tile of claim 1, wherein the first layer constitutes a dielectric for forming a capacitive impedance between the at least a pair of transmitter electrodes and the at least a pair of receiver electrodes.

### Claim 4 (depends on 1)

The acoustic ceiling tile of claim 1, wherein each of the pair of receiver electrodes and the pair of transmitter electrodes comprise conductive material.

### Claim 5 (depends on 4)

The acoustic ceiling tile of claim 4, wherein the conductive material comprises at least one of a conductive paint, a conductive ink, and a conductive tape.

### Claim 6 (depends on 1)

The acoustic ceiling tile of claim 1, wherein the power driver is connected to a suspension grid configured to suspend the acoustic ceiling tile to form a ceiling.

### Claim 7 (depends on 6)

The acoustic ceiling tile of claim 6, wherein the pair of transmitter electrodes are rails of a suspension grid configured to suspend the tile and transfer the power signal from the rails of the suspension grid to the receiver electrodes of tiles configured on the suspension grid.

### Claim 8 (depends on 2)

The acoustic ceiling tile of claim 2, wherein transmitter electrodes of a plurality of acoustic ceiling tiles are electrically coupled together using a conductive tape

### Claim 9 (depends on 2)

The acoustic ceiling tile of claim 2, wherein the transmitter electrodes and receiver electrodes are separated by the second layer,

### Claim 10

An illuminating acoustic ceiling tile operating as a capacitive power transfer system, comprising:
a first layer comprising a non-conductive material;
a second layer comprising the non-conductive material;
at least a pair of receiver electrodes of the capacitive power transfer system configured on a first side of the second layer;
a foam layer substantially covered on opposite sides with the first layer and second layer; and
a lighting element connected to an inductor and to the pair of receiver electrodes, wherein the lighting element and the inductor are configured in a chamber formed between the foam layer and first layer, wherein a power signal generated by a power driver is wirelessly transferred from a pair of transmitter electrodes to the pair of receiver electrodes to power the lighting element when a frequency of the power signal substantially matches a series-resonance frequency of the inductor and a capacitive impedance created between the pair of receiver electrodes and the pair of transmitter electrodes.

### Claim 11 (depends on 10)

The illuminating acoustic ceiling tile of claim 10, wherein:
the at least a pair of transmitter electrodes of the capacitive power transfer system are configured on a second side of the second layer, wherein the first and the second sides of the second layer are opposite to each other.

### Claim 12 (depends on 11)

The illuminating acoustic ceiling tile of claim 11, wherein at least the second layer constitutes a dielectric for the capacitive impedance, wherein the non-conductive material of the second layer is any one of transparent or semi-transparent material.

### Claim 13 (depends on 1)

The illuminating acoustic ceiling tile of claim 1, wherein the lighting element is any one of a LED, a LED string, a lamp, and an organic light emitting diode (OLED) surface and the foam configured for acoustic reduction.

### Claim 14

A method for manufacturing of an acoustic ceiling tile operating as a capacitive power transfer system, comprising:
forming a first layer from a non-conductive material;
forming a pair of receiver electrodes and a pair of transmitter electrodes on opposite sides of the first layer;
forming a foam layer;
forming a chamber between the foam layer and the first layer;
configuring at least a load and an inductor within the chamber formed between the foam layer and the first layer;
connecting the load in series to the inductor and to the pair of receiver electrodes;
forming a second layer; and
adhering the first and the second layers on opposite sides of the foam layer.