System for optimizing bluetooth streaming and method therefor

• US 10,013,230 B2
• Filed: 07/24/2015
• Issued: 07/03/2018
• Est. Priority Date: 12/16/2014
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Woo, Keun Sang
• Primary Examiner(s): Flanders, Andrew C
• Application Number:
  US14/809,155
• Publication Number:
  US 20160170706A1
• Time in Patent Office: 1,075 Days
• CPC Class Codes: G06F 3/165 Management of the audio stream, e.g. setting of volume, audio stream path
• CPC Class Codes: H03G 3/32 the control being dependent upon ambient noise level or sound level
• CPC Class Codes: H03G 5/165 Equalizers; Volume or gain control in limited frequency bands
• CPC Class Codes: H04L 65/762 at the source reformatting of additional data in video distribution servers H04N21/2355
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

A system for optimizing Bluetooth streaming includes a head unit including a Bluetooth module for Bluetooth pairing with a mobile device. A logic module is configured to correct sound quality of a selected media file by optimizing the media file reproduced by the mobile device. The system can provide optimized sound quality of Bluetooth streaming to a plurality of drivers who use smartphones in a vehicle.

Claims

1. A system for optimizing Bluetooth streaming comprising:

a head unit comprising a Bluetooth module for Bluetooth pairing with a mobile device; and

a logic module configured to correct sound quality of a selected media file by optimizing the media file reproduced by the mobile device,

wherein the logic module corrects the sound quality of the selected media file by applying sound quality correction data to the media file reproduced from the mobile device, and

wherein the sound quality correction data is a correction value for each of a bass signal, a middle signal, and a treble signal by a decibel level for the bass signal, the middle signal, and the treble signal, and

wherein the logic module controls doors of a vehicle to remove noise generated from outside of the vehicle for sound quality optimization using a controller included in the head unit.

2. The system according to claim 1, wherein the head unit comprises a telematics center for acquiring type information of the mobile device and type information of the vehicle when the head unit is connected to the mobile device through Bluetooth pairing.

3. The system according to claim 2, wherein the telematics center comprises a storage for storing corrected sound quality data of the media file reproduced by the mobile device.

4. The system according to claim 3, wherein the telematics center transmits the corrected sound quality data of the media file to the head unit and the head unit uses the corrected sound quality data.

5. The system according to claim 2, wherein the telematics center calculates an average value or a standard deviation by processing corrected sound quality data of the media file and stores the average value or the standard deviation in the storage if the average value or the standard deviation is within a preset range.

6. The system according to claim 5, wherein, if the average value or the standard deviation of the corrected sound quality data of the media file is out of the preset range, the type information of the mobile device, the type information of the vehicle, and sound quality data analyzed through optimization analysis are transmitted to the telematics center.

7. The system according to claim 1, wherein the logic module comprises the controller for minimizing noise inside and outside the vehicle when the media file is reproduced by the mobile device.

8. The system according to claim 7, wherein the logic module comprises a measurer for measuring the noise inside and outside the vehicle and transmitting a sound quality optimization ready signal of the media file to the mobile device.

9. The system according to claim 8, wherein the logic module comprises an input for acquiring a sound quality level (decibel) of the media file reproduced through a speaker inside the vehicle.

10. The system according to claim 9, wherein the logic module comprises an analyzer for analyzing optimized sound quality by comparing the sound quality level acquired by the input with a sound quality level preset in the head unit.

11. The system according to claim 10, wherein the logic module comprises a tuner for calculating bass, middle, and treble volume correction values for reproduction information of the selected media file from the head unit, and changing setting values of the reproduction information of the media file of the head unit based on the correction values.

12. The system according to claim 4, wherein the telematics center calculates an average value or a standard deviation by processing the corrected sound quality data of the media file, and stores the average value or the standard deviation in the storage if the average value or the standard deviation is within a preset range.

13. A method for optimizing Bluetooth streaming comprising:

an information transmission step for transmitting information about a mobile device to a head unit to perform sound quality optimization of a selected media file after the mobile device and the head unit are connected to each other through Bluetooth pairing;

a noise minimization step for controlling doors of a vehicle to remove noise generated from outside of the vehicle for sound quality optimization using a controller included in the head unit;

a noise analysis step for acquiring noise inside the vehicle from an input unit, comparing the noise to a preset noise level, and transmitting a sound quality optimization ready signal to the mobile device if the noise is less than the preset noise level;

a sound quality measurement step for acquiring sound quality of the media file from the input unit and measuring a sound quality level when the media file is reproduced through an output unit included in the vehicle;

a sound quality comparison step for comparing the sound quality of the media file acquired in the sound quality measurement step, to a preset sound quality level;

a correction value calculation step for calculating bass, middle and treble volume correction values of the sound quality level if the sound quality level compared in the sound quality comparison step is within a preset comparative value; and

a setting value changing step for applying the correction values acquired in the correction value calculation step to the media file reproduced by the head unit.