Patent ID: 6310558
Filing Date: 2001-10-30
Classification: H04W

Abstract:
A method for transmitting data from a transmitter to a plurality of receivers, the method comprising the steps of:at the transmitter,(a) transmitting first signals each having a first time period which is divided into a plurality of frames,each of the frames comprising:a synchronization field;an address field comprising a plurality of addresses associated with the receivers, respectively; anda message field comprising a plurality of messages corresponding to the addresses, respectively, each of the messages comprising a message and a message header which includes an address transmission number of an address corresponding to the message, said address transmission number indicating a transmission order of each of the addresses within said address field, andat each of the receivers,(b) receiving a frame of at least one of the first signals;(c) sequentially searching the address field for an address of the receiver itself while incrementing an address count at each address searched;(d) storing the address count when the address of the receiver itself is found; and(e) selecting a message addressed to the receiver itself from the message field by comparing the address count stored with the address transmission number included in the message header.