Patent ID: 9195676
Filing Date: 2015-11-24
Classification: G06F,G11B

Abstract:
1. A method of synchronizing content state lists between a portable content player and a content storage device having a content reproduction function, the method comprising: generating a first content state list for contents stored in the content storage device and a second content state list for contents stored in the portable content player; generating an execution list by comparing the first content state list and the second content state list if the portable content player and the content storage device are connected to each other, wherein the execution list including synchronization command for at least one content if the content state in the first content list for the at least one content does not match the content state in the second content list for the at least one content; and synchronizing the at least one content between the portable content player and the content storage device to match the first content state list with the second content state list by executing the synchronization command included in the execution list on the at least one content, wherein the synchronization command included in the execution list is one of an update command of the at least one content on the first content state list or the second content state list, a transmission command of a whole or a portion of the at least one content, and a delete command of the at least one content.