Patent ID: 8694613
Filing Date: 2014-04-08
Classification: H04L

Abstract:
1. A client device comprising: storage circuitry which stores audio content data; control circuitry which acquires content identification information for identifying the audio content data stored in the storage circuitry; and transmission circuitry which transmits, to a server device, a registration request including user identification information for identifying a user who uses the client device and the content identification information acquired by the control circuitry, and which, when the server device holds the audio content data identified by the content identification information, causes the server device to associate the user identification information with the content identification information as user-specific registration information, wherein when the server device does not hold the audio content data identified by the content identification information, the transmission circuitry causes the server device to hold the user-specific registration information, and also transmits the audio content data stored in the storage circuitry to the server device and causes the server device to hold the audio content data.