# US 7,744,428 B2 · Audio signal switcher

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- Number: US 7,744,428 B2
- Document ID: US7744428B2
- Status: Granted
- Kind: B2
- Application number: 11/964,049
- Filed: 2007-12-26
- Published: 2008-07-10
- Granted: 2010-06-29
- Earliest claimed: 2007-01-05
- Assignees: Ensky Technology (Shenzhen) Co., Ltd.; Ensky Technology Co., Ltd.
- Inventors: Shin-Hong Chung; Xiao-Guang Li; Kuan-Hong Hsieh
- Web page: https://patentgrep.com/patent/US7744428B2

## CPC

- 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)
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

The present invention provides an audio signal switcher including a jack switcher and a plug switcher. The jack switcher includes an audio jack and a first USB port. The first USB port includes a first data pin, a second data pin, a power pin, and a ground pin. The audio jack includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the first USB port. The plug switcher includes an audio plug and a second USB port. The second USB port also includes a data pin, a second data pin, a power pin, and a ground pin. The audio plug also includes a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the second USB port according to a connection between the audio jack and the first USB port. The plug switcher can be connected to the jack switcher by a USB cable.

## Claims

### Claim 1

An audio signal switcher comprising:
a jack switcher comprising an audio jack and a first USB port; the first USB port comprising a first data pin, a second data pin, and a ground pin, the audio jack comprising a left track segment, a right track segment, and a ground segment, which are electrically isolated coupled to at least three pins of the first USB port, further comprising a plug switcher, wherein the plug switcher comprises an audio plug and a second USB port; the second USB port comprises a first data pin, a second data pin, a power pin, and a ground pin; the audio plug comprises a left track segment, a right track segment, and a ground input, which are electrically isolated coupled to at least three pins of the second USB port according to a connection between the audio jack and the first USB port; the plug switcher is connected to the jack switcher by a USB cable.

### Claim 2 (depends on 1)

The audio signal switcher according to claim 1, wherein the first USB port is a standard male connector for coupling to a first connector of a USB cable; the first connector is a standard female connector for coupling to the first USB port.

### Claim 3 (depends on 1)

The audio signal switcher according to claim 1, wherein the first USB port is a standard female connector for coupling to a first connector of a USB cable;
the first connector is a standard male connector for coupling to the first USB port.

### Claim 4 (depends on 1)

The audio signal switcher according to claim 1, wherein the jack switcher comprises two or more audio jacks, the two or more audio jacks are parallelly connected to the first USB port.

### Claim 5 (depends on 1)

The audio signal switcher according to claim 1, wherein the audio jack is a standard 3.5 mm audio jack.

### Claim 6 (depends on 3)

The audio signal switcher according to claim 3, wherein the audio jack is a standard RCA jack, the left track segment is a left port, the right track segment is a right port, the ground segment is divided into a left ground ring and a right ground ring, the left ground ring is around the left port, and the right ground ring is around the right port.

### Claim 7 (depends on 1)

The audio signal switcher according to claim 1, wherein the second USB port is a standard male connector for coupling to a second connector of a USB cable; the second connector is a standard female connector for coupling to the second USB port.

### Claim 8 (depends on 1)

The audio signal switcher according to claim 1, wherein the audio plug is a standard 3.5 mm audio plug.

### Claim 9 (depends on 1)

The audio signal switcher according to claim 1, wherein the second USB port is a standard female connectors for coupling to a second connector of a USB cable; the second USB port is a standard male connector for coupling to a second connector of a USB cable.

### Claim 10 (depends on 9)

The audio signal switcher according to claim 9, wherein the audio plug is a standard RCA plug, the left track segment is a left pin, the right track segment is a right pin, the ground segment is divided into a left ground ring and a right ground ring, the left ground ring is around the left pin, and the right ground ring is around the right pin.