# US 12,009,116 B2 · Noise reduction circuit

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- Number: US 12,009,116 B2
- Document ID: US12009116B2
- Status: Granted
- Kind: B2
- Application number: 16/891,584
- Filed: 2020-06-03
- Published: 2021-03-25
- Granted: 2024-06-11
- Earliest claimed: 2019-06-03
- Assignees: Stillpoints LLC
- Applicants: Paul J. Wakeen; John Tucker; Louis L. Ergmann, Jr.
- Inventors: Paul J. Wakeen; John Tucker; Louis L. Ergmann, Jr.
- Web page: https://patentgrep.com/patent/US12009116B2

## CPC

- H01B 11/1008: {Features relating to screening tape per se}
- H01B 11/1895: {Particular features or applications}
- H01R 9/05: for coaxial cables
- H01R 31/06: Intermediate parts for linking two coupling parts, e.g. adapter (with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94)
- H01B: CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES (selection for magnetic properties H01F1/00; waveguides H01P {; printed circuits H05K})
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

In some embodiments, a noise reduction circuit comprises an insulated wire comprising a conductor and insulation. A shielding material is oriented around the insulated wire. The shielding material comprises metallized fibers.

## Claims

### Claim 1

A device comprising:
a first power conductor;
a second power conductor;
a first noise reduction circuit comprising:
a conductive wire comprising a conductive attachment location contacting the first power conductor;
an insulator surrounding the conductive wire, the insulator covering all portions of the conductive wire except the conductive attachment location; and
a shielding material oriented around the insulator, the shielding material comprising a conductive sheet comprising a binder lamination and metallized fibers, the metallized fibers arranged in a non-woven pattern;
wherein the conductive wire does not contact any other conductor; and
a second noise reduction circuit comprising a second conductive wire, a second insulator surrounding the second conductive wire and a second shielding material oriented around the second insulator, the second shielding material comprising metallized fibers, the second conductive wire in electrical communication with the second power conductor.

### Claim 2 (depends on 1)

The device of claim 1, wherein the metallized fibers of the shielding material are arranged in a random pattern.

### Claim 3 (depends on 1)

The device of claim 1, further comprising a filter arranged to surround the conductive wire.

### Claim 4 (depends on 3)

The device of claim 3, wherein the filter comprises a ring of magnetic material.

### Claim 5 (depends on 1)

The device of claim 1, wherein the conductive wire and insulator are arranged in a loop and the conducive attachment location comprises first and second ends of the conductive wire.

### Claim 6 (depends on 5)

The device of claim 5, the loop comprising a first elongate portion and a second elongate portion extending adjacent to one another.

### Claim 7 (depends on 1)

The device of claim 1, the second conductive wire extending in a loop within the second shielding material.

### Claim 8 (depends on 1)

The device of claim 1, comprising an IEC coupler comprising the first power conductor and the second power conductor.

### Claim 9 (depends on 1)

The device of claim 1, comprising an electronic device comprising a chassis, wherein the noise reduction circuit is oriented within the chassis.

### Claim 10 (depends on 1)

The device of claim 1, comprising a ground conductor and a third noise reduction circuit comprising a third conductive wire, a third insulator surrounding the third conductive wire and a third shielding material oriented around the third insulator, the third shielding material comprising metallized fibers, the third conductive wire in electrical communication with the ground conductor.

### Claim 11

A device comprising:
a power line arranged to receive a voltage; and
a noise reduction circuit comprising:
an insulated wire comprising a conductor, insulation and a conductive attachment location, the conductive attachment location contacting the power line, the insulation covering all portions of the conductor except the conductive attachment location; and
a shielding material oriented around the insulated wire, the shielding material comprising metallized fibers arranged in a non-woven pattern;
wherein the insulated wire is arranged in a loop, the conductive attachment location comprises first and second ends of the conductor and the conductor does not provide the voltage.

### Claim 12 (depends on 11)

The device of claim 11, wherein the metallized fibers of the shielding material are arranged in a random pattern.

### Claim 13 (depends on 11)

The device of claim 11, wherein the shielding material comprises a conductive sheet comprising a binder lamination and said metallized fibers.

### Claim 14 (depends on 11)

The device of claim 11, further comprising a filter arranged to surround the insulated wire.

### Claim 15 (depends on 14)

The device of claim 14, wherein the filter comprises a ring of magnetic material.

### Claim 16 (depends on 11)

The device of claim 11, the loop comprising a first elongate portion and a second elongate portion extending adjacent to one another.

### Claim 17

A device comprising:
a first power conductor, a second power conductor and a ground conductor;
a first noise reduction circuit comprising a first conductive wire contacting the first power conductor, a first insulator surrounding the first conductive wire and a first shielding material oriented around the insulator, the first shielding material comprising a conductive sheet comprising a binder lamination and metallized fibers, wherein the first conductive wire does not contact any other conductor; and
a second noise reduction circuit comprising a second conductive wire, a second insulator surrounding the second conductive wire and a second shielding material oriented around the second insulator, the second shielding material comprising metallized fibers, the second conductive wire in electrical communication with the ground conductor.

### Claim 18 (depends on 17)

The device of claim 17, comprising an IEC coupler comprising the first power conductor, the second power conductor and the ground conductor.

### Claim 19 (depends on 17)

The device of claim 17, comprising a third noise reduction circuit comprising a third conductive wire, a third insulator surrounding the third conductive wire and a third shielding material oriented around the third insulator, the third shielding material comprising metallized fibers, the third conductive wire in electrical communication with the second power conductor.