# US 9,520,122 B2 · Audio apparatus and controlling method thereof

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- Number: US 9,520,122 B2
- Document ID: US9520122B2
- Status: Granted
- Kind: B2
- Application number: 14/313,391
- Filed: 2014-06-24
- Published: 2015-06-04
- Granted: 2016-12-13
- Earliest claimed: 2013-12-03
- Assignees: Hyundai Motor Company
- Applicants: Hyundai Motor Company
- Inventors: Hyo Sup Kang; Jin Ook Yoo
- Web page: https://patentgrep.com/patent/US9520122B2

## CPC

- G10K 11/17857: {Geometric disposition, e.g. placement of microphones}
- G10K 11/17873: {using a reference signal without an error signal, e.g. pure feedforward}
- G10K 11/17885: {additionally using a desired external signal, e.g. pass-through audio such as music or speech}
- G10K 2210/12: Rooms, e.g. ANC inside a room, office, concert hall or automobile cabin
- G10K 2210/1282: Automobiles
- G10K 2210/3019: Cross-terms between multiple in's and out's
- G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR

## Abstract

An audio apparatus and method are provided. The method includes receiving, by a controller, first audio data and second audio data and processing the first audio data and the second audio data to generate first audio signals and second audio signals. Further, reverse phase signals of the first audio signals are generated by the controller. A first group of the plurality of audio outputting units output the first audio signals and a second group of the plurality of audio outputting units output the second audio signals and the reverse phase signals of the first audio signals.

## Claims

### Claim 1

An audio apparatus comprising:
a memory configured to store program instructions; and
a processor configured to execute the program instructions, which when executed cause the processor to:
receive first audio data and second audio data;
process the first audio data and the second audio data to generate first audio signals and second audio signals;
generate reverse phase signals of the first audio signals;
generate reverse phase signals of the second audio signals;
output the first audio signals and the reverse phase signals of the second audio signals together through a first group of audio outputting units; and
output the second audio signals and the reverse phase signals of the first audio signals through a second group of audio outputting units,
wherein output levels of the reverse phase signals of the first audio signals are different from each other based on positions of the audio outputting units that output the reverse phase signals of the first audio signals.

### Claim 2 (depends on 1)

The audio apparatus according to claim 1, wherein the output levels of the reverse phase signals of the first audio signals are lower than those of the first audio signals.

### Claim 3 (depends on 1)

The audio apparatus according to claim 1, wherein the program instructions when executed are further configured to:
display types of audio signals output from each of the plurality of audio outputting units using a display unit.

### Claim 4 (depends on 1)

The audio apparatus according to claim 1, wherein the program instructions when executed are further configured to:
receive a user command for changing audio signals output from the plurality of audio outputting units using an inputting unit.

### Claim 5 (depends on 1)

The audio apparatus according to claim 1, wherein the program instructions when executed are further configured to:
store set information in which types and output levels of audio signals output from each of the plurality of audio outputting units are set.

### Claim 6

A controlling method of an audio apparatus, comprising:
receiving, by a controller, first audio data;
processing, by the controller, the first audio data to generate first audio signals;
outputting, by the controller, the first audio signals to a plurality of audio outputting units;
receiving, by the controller, second audio data;
processing, by the controller, the second audio data to generate second audio signals;
generating, by the controller, reverse phase signals of the first audio signals;
generating, by the controller, reverse phase signals of the second audio signals;
outputting, by the controller, the first audio signals and the reverse phase signals of the second audio signals together to a first group of the plurality of audio outputting units; and
outputting, by the controller, the second audio signals and the reverse phase signals of the first audio signals to a second group of the plurality of audio outputting units,
wherein output levels of the reverse phase signals of the first audio signals are different from each other based on positions of the audio outputting units that output the reverse phase signals of the first audio signals.

### Claim 7 (depends on 6)

The controlling method of an audio apparatus according to claim 6, wherein in the outputting of the reverse phase signals of the first audio signals, the reverse phase signals of the first audio signals are output at output levels lower than those of the first audio signals.

### Claim 8 (depends on 6)

The controlling method of an audio apparatus according to claim 6, further comprising:
receiving, by the controller, a user command for changing audio signals output from the plurality of audio outputting units; and
changing, by the controller, the audio signals output from the plurality of audio outputting units based on the user command.

### Claim 9 (depends on 6)

The controlling method of an audio apparatus according to claim 6, further comprising:
receiving, by the controller, a user command for selecting an output mode in which types and output levels of audio signals output from each of the plurality of audio outputting units are set; and
changing, by the controller, the audio signals output from the plurality of audio outputting units based on the output mode.

### Claim 10

A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
program instructions that receive first audio data;
program instructions that process the first audio data to generate first audio signals;
program instructions that output the first audio signals to a plurality of audio outputting units;
program instructions that receive second audio data;
program instructions that process the second audio data to generate second audio signals;
program instructions that generate reverse phase signals of the first audio signals;
program instructions that generate reverse phase signals of the second audio signals;
program instructions that output the first audio signals and the reverse phase signals of the second audio signals together to a first group of the plurality of audio outputting units; and
program instructions that output the second audio signals and the reverse phase signals of the first audio signals to a second group of the plurality of audio outputting units,
wherein output levels of the reverse phase signals of the first audio signals are different from each other based on positions of the audio outputting units that output the reverse phase signals of the first audio signals.

### Claim 11 (depends on 10)

The non-transitory computer readable medium of claim 10, wherein in the outputting of the reverse phase signals of the first audio signals, the reverse phase signals of the first audio signals are output at output levels lower than those of the first audio signals.

### Claim 12 (depends on 10)

The non-transitory computer readable medium of claim 10, further comprising:
program instructions that receive a user command for changing audio signals output from the plurality of audio outputting units; and
program instructions that change the audio signals output from the plurality of audio outputting units based on the user command.

### Claim 13 (depends on 10)

The non-transitory computer readable medium of claim 10, further comprising:
program instructions that receive a user command for selecting an output mode in which types and output levels of audio signals output from each of the plurality of audio outputting units are set; and
program instructions that change the audio signals output from the plurality of audio outputting units based on the output mode.