Audio system of a tablet personal computer and the speaker orientating method thereof

• US 20070098191A1
• Filed: 03/14/2006
• Published: 05/03/2007
• Est. Priority Date: 10/28/2005
• Status: Abandoned Application

• Current Assignee: Quanta Computer
• Original Assignee: Quanta Computer
• Inventors: Tsai, Hsin-Feng, Wan, Tai-Shing, Liu, Ming-Yang
• Application Number:
  US11/374,212
• Publication Number:
  US 20070098191A1
• Time in Patent Office: Days
• US Class Current: 381/306
• CPC Class Codes: H04R 2499/11 Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
• CPC Class Codes: H04R 2499/15 Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407
• CPC Class Codes: H04R 5/04 Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments combinations of amplifiers H03F3/68; stereophonic systems H04S
• CPC Class Codes: H04S 1/002 Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution control circuits for electronic adaptation of the sound field H04S7/30
• CPC Class Codes: H04S 2400/13 Aspects of volume control, not necessarily automatic, in stereophonic sound systems
• CPC Class Codes: H04S 7/302 Electronic adaptation of stereophonic sound system to listener position or orientation H04S7/301 takes precedence

Abstract

An audio system of a tablet personal computer and the speaker orientating method thereof are provided, wherein the audio system comprises at least two speakers mounted on a frame of the tablet personal computer, an angle detector mounted on the frame, an audio driver used to drive the speakers, and an audio-adjusting device. The audio driver can adjust the sound field of each speaker in accordance with a set of audio parameters. The angle detector is used to generate positional data as the frame is rotated relative to the ground. The audio adjusting device is used to renew the audio setting in accordance with the positional data to make the speakers provide an audio stereophony substantially equal to the predetermined stereophony.

Claims

1. An audio system, set in a tablet personal computer to provide a predetermined stereophony comprising:

at least two speakers, set on a frame of the tablet personal computer, wherein each of the speakers has a distance apart from another;

an audio driver, used to drive the speakers and adjust the sound field outputted by each of the speakers in accordance with a set of audio parameters that can assign each of the speakers to provide a left sound field, to provide a right sound field or to mute;

an angle detector, set on the frame of the tablet personal computer used for generating a positional data as the frame is rotated relative to the ground; and

an audio-adjusting device, used to renew the set of audio parameters to make the speakers output a stereophony substantially equal to the predetermined stereophony.

2. The audio system in accordance with claim 1, wherein the angle detector comprises an accelerometer used to measure the rotating angles and the rotating direction of the frame to calculate the relative position of the speakers and the frame to the ground for providing the positional data.

3. The audio system in accordance with claim 1, wherein the set of audio parameters can further control the outputting volume and frequency of each speaker.

4. The audio system in accordance with claim 1, wherein the audio driver comprises a single chip, chipset, software, and the arbitrary combination thereof.

5. The audio system in accordance with claim 1, wherein the audio adjusting device comprises an indicator used to display the positional data.

6. The audio system in accordance with claim 5, wherein the audio adjusting device comprises a manual controller by which a user can renew the set of audio parameters in accordance with the positional data displayed on the indicator.

7. The audio system in accordance with claim 1, wherein the audio adjusting device comprises a register used to store the positional data, wherein when the positional data is varied, the audio-adjusting device can renew the set of audio parameters automatically.

8. The audio system in accordance with claim 1, wherein the audio adjusting device comprises an application program by which to call an application-programming interface (API) system to renew the audio parameters

9. The audio system in accordance with claim 1, wherein when the audio system comprises more than three speakers, these speakers are coplanar.

10. An orientating method of an audio system set in a tablet personal computer to provide a predetermined stereophony, comprising the steps of:

setting at least two speakers on a frame of the tablet personal computer, wherein each of the speakers has a distance apart from another;

providing an audio driver, used to drive the speakers and adjust the sound field outputted by each of the speakers in accordance with a set of audio parameters that can assign each of the speakers to provide a left sound field, to provide a right sound field, or to mute;

setting an angle detector on the frame of the tablet personal computer for generating a positional data as the frame is rotated relative to the ground; and

renewing the set of audio parameters to make the speakers output a stereophony substantially equal to the predetermined stereophony.

11. The orientating method in accordance with claim 10, wherein the step of renewing the set of audio parameters comprises controlling the outputting volume and frequency of each speaker.

12. The orientating method in accordance with claim 10, wherein an application program is used to call an API system for renewing the set of audio parameters.

13. The orientating method in accordance with claim 10, wherein an API system is used for renewing the set of audio parameters automatically.

14. The orientating method in accordance with claim 10, wherein a manual controller is used for renewing the set of audio parameters.