Directional speaker system and automatic set-up method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorSung-ho CHO
Life of this patent
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Abstract
A directional speaker system and an automatic set-up method thereof, whereby a steering angle of the directional speaker system is automatically set up. The method includes generating a plurality of signals, converting the plurality of signals into a plurality of sound beams that orient virtual speaker candidate positions using a directional speaker, extracting a physical value to determine directivity from each of the plurality of sound beams input to a microphone, and setting a steering angle of a relevant virtual speaker position by comparing the physical values of the sound beams to each other.
Claims23
An automatic set-up method of a directional speaker system, the method comprising:
- generating a plurality of signals;
- converting the plurality of signals into a plurality of sound beams that orient virtual speaker candidate positions using a directional speaker;
- extracting a physical value to determine directivity from each of the plurality of sound beams input to a microphone;
- and
- setting a steering angle of a relevant virtual speaker position by comparing the physical values of the sound beams to each other.
A directional speaker system comprising:
- a directional speaker to convert a plurality of signals, each having a different frequency, into a plurality of sound beams that orient virtual speaker candidate positions according to a plurality of set steering angles;
- a microphone module to receive the plurality of sound beams of the directional speaker reflected from a reflection wall;
- and
- a signal processing unit to generate a plurality of signals, each having a different frequency and a different steering angle, to extract beam-forming power of each sound beam by beam-forming processing the plurality of sound beams input to the microphone module, and to set a steering angle of a relevant virtual speaker position by comparing the beam-forming powers to each other.
A computer readable recording medium comprising computer readable codes to execute an automatic set-up method of a directional speaker system, the method comprising:
- generating a plurality of signals;
- converting the plurality of signals into a plurality of sound beams that orient virtual speaker candidate positions using a directional speaker;
- extracting a physical value to determine directivity from each of the plurality of sound beams input to a microphone;
- and
- setting a steering angle of a relevant virtual speaker position by comparing the physical values of the sound beams to each other.
A method to set-up a directional speaker system, the method comprising:
- generating a plurality of test signals;
- generating a plurality sound beam at pre-determined steering angles according to the plurality of test signals using a directional speaker;
- determining a directivity and magnitude of the plurality of sound beams;
- comparing the directivity and magnitude of the plurality of sound beams at relevant virtual speaker positions;
- and
- setting a steering angle for relevant virtual speaker positions according to the comparison.
A directional speaker system comprising:
- a directional speaker to convert a plurality of signals, each having a different frequency, into a plurality of sound beams that orient virtual speaker candidate positions according to a plurality of set steering angles;
- a microphone module to receive the plurality of sound beams of the directional speaker reflected from a reflection wall;
- and
- a signal processing unit to generate a plurality of signals, each having a different frequency and a different steering angle, to determine a sound intensity of each sound beam by measuring the sound intensity of the plurality of sound beams input to the microphone module, and to set a steering angle of a relevant virtual speaker position by comparing the sound intensities to each other.
Dependencies are inferred from the claim text.