METHOD FOR SYNCHRONIZING AUDIO PLAYBACK OF PLURAL PLAYING DEVICES AND AUDIO PLAYBACK SYSTEM
First Claim
1. A method for synchronizing audio playback of plural playing devices, the plural playing devices comprise a first playing device and a second playing device, the method comprising steps of:
- (A) setting the first playing device as a master playing device, wherein the first playing device is in a first operation status, and the second playing device is in a second operation status;
(B) allowing the first playing device to transmit the first operation status to the second playing device, so that the second operation status of the second playing device is switched to the first operation status;
(C) using a digital media controller to transmit an action command;
(D) transmitting a first time information of the first playing device to the second playing device after the playback command is received by the first playing device;
(E) the second playing device comparing the first time information of the first playing device with a second time information of the second playing device, thereby controlling the second playing device and the first playing device to start the audio playback in response to the action command; and
(F) allowing the second playing device to continuously receive the first time information of the first playing device and compare the first time information with the second time information after the first playing device and the second playing device start the audio playback, so that a playback progress of the second playing device is adjusted and the audio playback of the second playing device is synchronized with the audio playback of the first playing device.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for synchronizing audio playback includes following steps. Firstly, a first playing device is set as a master playing device. Then, a second operation status of a second playing device is switched to a first operation status of the first playing device. In response to an action command, a first time information of the first playing device is transmitted to the second playing device. By comparing the first time information with a second time information of the second playing device, the second playing device and the first playing device start the audio playback. The first time information and the second time information are continuously compared with each other, and a playback progress of the second playing device is correspondingly adjusted. Consequently, the audio playback of the second playing device and the first playing device are synchronized.
-
Citations
27 Claims
-
1. A method for synchronizing audio playback of plural playing devices, the plural playing devices comprise a first playing device and a second playing device, the method comprising steps of:
-
(A) setting the first playing device as a master playing device, wherein the first playing device is in a first operation status, and the second playing device is in a second operation status; (B) allowing the first playing device to transmit the first operation status to the second playing device, so that the second operation status of the second playing device is switched to the first operation status; (C) using a digital media controller to transmit an action command; (D) transmitting a first time information of the first playing device to the second playing device after the playback command is received by the first playing device; (E) the second playing device comparing the first time information of the first playing device with a second time information of the second playing device, thereby controlling the second playing device and the first playing device to start the audio playback in response to the action command; and (F) allowing the second playing device to continuously receive the first time information of the first playing device and compare the first time information with the second time information after the first playing device and the second playing device start the audio playback, so that a playback progress of the second playing device is adjusted and the audio playback of the second playing device is synchronized with the audio playback of the first playing device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An audio playback system comprises:
-
a digital media controller setting a first playing device as a master playing device and issuing an action command; the first playing device comprising a first digital media renderer control module and a first digital media controller control module, wherein a first operation status and a first time information of the first playing device are transmitted from the first digital media renderer control module to a second playing device; and the second playing device comprising a second digital media renderer control module and a second digital media controller control module, wherein the second digital media controller control module comprises; a synchronizing unit receiving the first operation status of the first playing device and switching a second operation status of the second playing device into the first operation status, and comparing the first time information of the first playing device with a second time information of the second playing device, thereby controlling audio playback of the first playing device and audio playback of the second playing device to be synchronously started in response to an action command; and a locked phase loop unit continuously receiving the first time information of the first playing device and comparing the first time information with the second time information after the first playing device and the second playing device start the audio playback, so that a playback progress of the second playing device is adjusted and the audio playback of the second playing device is synchronized with the audio playback of the first playing device. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
-
Specification