US 2015/0319556 A1Published application

Audio player with bluetooth function and audio playing method thereof

AssigneeISSC Technologies Corp.

InventorsGUAN-CHIUN CHEN, CHUNG-I LEE

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Abstract

An audio player with a Bluetooth function and an audio playing method thereof are provided. The audio player includes a master Bluetooth speaker and a plurality of slave Bluetooth speakers. The master Bluetooth speaker receives and decodes a compressed digital audio to generate a decoded time. The slave Bluetooth speakers receive and decode the compressed digital audio to generate another decoded time. After the slave Bluetooth speakers receive the decoded time from master Bluetooth speaker and determine a time difference between the master Bluetooth speaker and the slave Bluetooth speakers, the slave Bluetooth speakers adjust timing for playing an audio from each of the slave Bluetooth speakers. Therefore, the timing for playing the audio from each of the slave Bluetooth speakers can synchronize timing for playing audio from the master Bluetooth speaker.

Claims20

Dependent claims

An audio player with a Bluetooth function, comprising:

a master Bluetooth speaker, configured for having a Bluetooth field, receiving a digital compression audio, and decoding the digital compression audio to generate a master decoded audio and a master decoded time corresponding to the master decoded audio;
a plurality of slave Bluetooth speakers, disposed in the Bluetooth field to receive the digital compression audio transmitted from the master Bluetooth speaker and receiving the master decoded time after the master Bluetooth speaker generating the master decoded time, wherein each slave Bluetooth speaker decodes the digital compression audio to generate a slave decoded audio and a slave decoded time corresponding to the slave decoded audio, and each slave Bluetooth speaker comprises:
a processor, configured for receiving the master decoded time and the slave decoded time and determining a time difference between the master decoded time and the slave decoded time to generate a compensated signal indicating the time difference;
and
a compensation element, electrically connected to the processor and configured for receiving the compensated signal and the slave decoded audio, wherein the compensation element adjusts the slave decoded audio based on the compensated signal to synchronize the slave decoded audio and the master decoded audio and accordingly generates a compensated audio;
wherein when the master Bluetooth speaker analogizes the master decoded audio to play the analog master decoded audio, the slave Bluetooth speaker analogizes the compensated audio to synchronously play the analog compensated audio.

3 more elements

An audio playing method with a Bluetooth function, adapted for an audio player with the Bluetooth function, which has a master Bluetooth speaker and a plurality of slave Bluetooth speakers, the master Bluetooth speaker having a Bluetooth field and the slave Bluetooth speakers disposed in the Bluetooth field, and the audio playing method comprising:

receiving a digital compression audio and transmitting the digital compression audio to the slave Bluetooth speakers in the master Bluetooth speaker;
decoding the digital compression audio to generate a master decoded audio and a master decoded time corresponding to the master decoded audio in the master Bluetooth speaker;
receiving the digital compression audio transmitted from the master Bluetooth speaker and receiving the master decoded time after the master Bluetooth speaker generating the master decoded time in each slave Bluetooth speaker;
decoding the digital compression audio to generate a slave decoded audio and a slave decoded time corresponding to the slave decoded audio in each slave Bluetooth speaker;
determining a time difference between the master decoded time and the slave decoded time to generate a compensated signal indicating the time difference in each slave Bluetooth speaker;
and
adjusting the slave decoded audio based on the compensated signal to synchronize the slave decoded audio and the master decoded audio, and accordingly generating a compensated audio in each slave Bluetooth speaker;
wherein when the master Bluetooth speaker analogizes the master decoded audio to play the analog master decoded audio, the slave Bluetooth speaker analogizes the compensated audio to synchronously play the analog compensated audio.

5 more elements

Dependencies are inferred from the claim text.