A communications protocol that is used in a network having a hub device connected to a plurality of peripheral devices includes a synchronization beacon frame that is broadcast by the hub device to the peripheral devices for permitting the peripheral devices to synchronize to the network, a token frame...http://www.google.fr/patents/US6351468?utm_source=gb-gplus-shareBrevet US6351468 - Communications protocol in a wireless personal area network
Communications protocol in a wireless personal area network
