Patent ID: 7849222

Claim:
A method of synchronizing a plurality of content directory service (CDS) devices in a home network that includes N CDS devices that provide metadata of multimedia content existing in the home network, and a control point (CP) that receives the metadata from the N CDS devices and requests a replay to a media renderer, the method comprising: retrieving and discovering the N CDS devices in a home network, by a CP; transmitting a first message that requests synchronization, to a first CDS device of the N CDS devices, by the CP; forwarding a second message from the first CDS device to other CDS devices of the N CDS devices that informs the other CDS devices that the synchronization will be started by the first CDS device that has received the first message; and synchronizing each of the N CDS devices with each other; wherein the home network uses an UPnP AV architecture.