Invention Grant
- Patent Title: Method and system for simultaneous playback of audio tracks from a plurality of digital devices
- Patent Title (中): 用于从多个数字设备同时重放音轨的方法和系统
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Application No.: US14038377Application Date: 2013-09-26
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Publication No.: US09286382B2Publication Date: 2016-03-15
- Inventor: Alessandro Morcelli , Marco Veneri
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Agency: Seed IP Law Group PLLC
- Priority: ITMI2012A1617 20120928
- Main IPC: G06F17/30
- IPC: G06F17/30 ; H04H60/92 ; H04H60/80 ; H04N21/414 ; H04N21/81 ; H04N21/41 ; H04N21/4367 ; H04N21/432 ; H04L7/00 ; H04J3/06 ; H04N21/8358

Abstract:
A method for simultaneous playback of audio tracks from digital transceiver devices, which are adapted to define a communication network. The digital devices store audio tracks to be played. One of the digital devices is actuated as a Master device (M) and the remaining N digital devices as Slave devices. The master device generates a pilot signal by selecting a pilot audio track to be played from among stored audio tracks and by adding a synchronization frequency (fS) to the pilot audio track, having an assigned value that falls out of the sound wave frequency range. The Slave devices receive a pilot portion of the pilot signal and extract the synchronization frequency and the received part of the pilot audio track. The slave devices use the pilot to identify a stored track to be played using the synchronization frequency as a sampling frequency.
Public/Granted literature
- US20140094944A1 METHOD AND SYSTEM FOR SIMULTANEOUS PLAYBACK OF AUDIO TRACKS FROM A PLURALITY OF DIGITAL DEVICES Public/Granted day:2014-04-03
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