System, apparatus, and method of speaker

• US 8,422,689 B2
• Filed: 12/04/2008
• Issued: 04/16/2013
• Est. Priority Date: 07/04/2008
• Status: Active Grant

• Current Assignee: Acer, Inc.
• Original Assignee: Acer, Inc.
• Inventors: Yeh, Neng-Wen, Li, Po-Yu, Shyu, Ruey-Ching, Huang, Lai-Shi
• Primary Examiner(s): Gurley, Lynne
• Assistant Examiner(s): Webb, Vernon P
• Application Number:
  US12/314,128
• Publication Number:
  US 20090252340A1
• Time in Patent Office: 1,594 Days
• Field of Search: 381/17, 381/18, 381/23, 704/E19.005
• US Class Current: 381/23
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

A system, and an apparatus of speaker, and a method for forming a virtual audio is provided. An audio source is processed by a second audio source processing program according to parameters which are entered by the user, and filtered to be a high frequency audio signal. The audio source with orientation is outputted by the orientation speaker.

Claims

1. A speaker system, comprising:

a source encoder/decoder for receiving an audio signal, performing a first audio source processing program and an encoding/decoding process on the audio signal to output a first signal and a second signal, and performing a second audio source processing program to filter out the audio signal with a frequency larger than a predetermined frequency to output a third signal and a fourth signal according to an inputting parameter;

a first main audio speaker unit and a second main audio speaker unit, for receiving the first signal and the second signal respectively;

a first orientation speaker unit and a second orientation speaker unit, for receiving the third signal and the fourth signal respectively, the first and second orientation speaker units being high frequency speaker units; and

first and second power amplifiers, wherein

the third signal is transmitted to the first orientation speaker unit from the source encoder/decoder through the first power amplifier and the fourth signal is transmitted to the second orientation speaker unit from the source encoder/decoder through the second power amplifier.

2. The speaker system of claim 1, wherein the first audio source processing program is a Dolby Digital audio processing program.

3. The speaker system of claim 1, further comprising a speaker box having a first surface, a second surface, a third surface, and a fourth surface, the first surface configured to accommodate a first main audio speaker unit, the second surface configured to accommodate a first orientation speaker unit, the third surface configured to accommodate the second main audio speaker unit, and the fourth surface configured to accommodate the second orientation speaker unit, wherein the inputting parameter is an angle between a normal line of the first surface and a normal line of the second surface, or between a normal line of the third surface and a normal line of the fourth surface.

4. The speaker system of claim 1, wherein the inputting parameter is a distance between the first main audio speaker unit and the second main audio speaker unit, or a distance between the first orientation speaker unit and the second orientation speaker unit.

5. The speaker system of claim 1, wherein the inputting parameter is an audio reflecting distance between the first orientation speaker unit and a reflecting object, or between the second orientation speaker unit and a reflecting object.

6. The speaker system of claim 1, wherein the second audio source processing program is configured to delay the audio signal by a predetermined time.

7. The speaker system of claim 1, further comprising a third power amplifier, and a fourth power amplifier, wherein the third power amplifier and the fourth power amplifier are respectively connected between the source encoder/decoder and the first main audio speaker unit and between the source encoder/decoder and the second main audio speaker unit.

8. The speaker system of claim 1, further comprising a central processor unit (CPU) configured to receive an inputting data to generate the audio signal.

9. A speaker device, comprising:

at least a main audio speaker unit configured to receive a first audio signal;

at least an orientation speaker unit configured to receive a second audio signal, wherein the second audio signal is a high frequency signal filtered out according to an inputting parameter; and

a speaker box having a first surface and a second surface, the first surface configured to accommodate at least a main audio speaker unit, and the second surface configured to accommodate at least an orientation speaker unit,

wherein there is an angle between a normal line of the first surface and a normal line of the second surface, and

the at least one orientation speaker unit is a high frequency speaker unit that includes a power amplifier configured to amplify the second audio signal.

10. The speaker device of claim 9, wherein the angle is 90 degree.

11. The speaker device of claim 9, wherein the first audio signal is a full-frequency range signal.

12. A method for forming a virtual audio, comprising:

inputting an audio signal;

inputting a parameter;

processing the audio signal by performing a second audio source processing program according to the parameter to filter out the audio signal with a frequency larger than a predetermined frequency to generate a third signal and a fourth signal; and

outputting the first signal and the second signal by two main audio speaker units respectively, and outputting the third signal and the fourth signal by two orientation speaker units respectively, the two orientation speaker units being high frequency speaker units, wherein

the step of processing the third and fourth signals includes amplifying the third and fourth signals before outputting the third and fourth signals via the two orientation speaker units respectively.

13. The speaker method of claim 12, wherein the first audio source processing program is a Dolby Digital audio processing program.

14. The speaker method of claim 12, further comprising a speaker box having two surfaces, the two surfaces configured to accommodate the main audio speaker unit and the orientation speaker unit respectively, wherein the parameter is an angle between a normal line of the main audio speaker unit and a normal line of the orientation speaker unit.

15. The speaker method of claim 12, wherein the parameter is a distance between the two main audio speaker unit or a distance between the two orientation speaker units.

16. The speaker method of claim 12, wherein the parameter is an audio reflecting distance between the orientation speaker unit and a reflecting object.

17. The speaker method of claim 12, wherein the second audio source processing program is configured to configured to delay the audio signal by a predetermined time.

18. The speaker method of claim 12, further comprises an audio signal generating step configured to process an inputting data to generate the audio signal.

19. The speaker method of claim 12, wherein the audio signal is a full-frequency range signal.