Patent ID: 8275849
Filing Date: 2012-09-25
Classification: H04L,H04W

Abstract:
1. A wireless network comprising a master, a plurality of slaves belonging to the master, and a shared channel connecting the master with the slaves; wherein the master periodically and wirelessly sends identifier information for first data that the network contains to at least one slave, receives at least one request for data from at least one slave, finds the requested data, and wirelessly sends the requested data to the corresponding slave through the shared channel; wherein a slave detects identifier information for second data that the slave itself does not contain and which excludes identifier information for third data that the slave itself contains from the identifier information for first data received from the master, requests the master to send the second data, wirelessly receives the data through the shared channel, determines whether the received data is contained in its second data, updates identifier information for the received data in addition to identifier information for the third data; and stores the received data in addition to the third data when the received data is contained in the second data, and requests the master to again send the second data when the received data is not contained in the second data; and whereby the data requested by the slave is received and stored by other slaves that need it simultaneously so flexible data between the master and the slaves are shared in real time.