Patent ID: 7769963

Claim:
A radio frequency tag that is one of a plurality of radio frequency tags in radio frequency communications range of a base station, comprising: a memory having a first memory location retaining a tag group identifier, a second memory location retaining a tag identification code, and a third memory location retaining page data; and a processor for receiving from the base station a write signal having an address field identifying the first memory location, a byte data field having byte data, a page address field having a page address, and a page data field having page data comprising a plurality of bytes, said processor retrieving the tag group identifier from the first memory location of said memory in response to the address field, comparing the tag group identifier with the byte data from the byte data field, and comparing the page data from the page data field of said write signal to the page data retained at the third memory location: wherein if the byte data matches the tag group identifier from the first data location, and if the page data retained at the third memory location matches the page data from the page data field of the write signal, then sending a response signal to the base station including a verification message indicating a successful write, and if the byte data matches the tag group identifier from the first data location, and if the page data retained at the third memory location does not match the page data from the page data field of the write signal, then said processor writes the page data from the page data field of the write signal to the third memory location of said memory, said third memory location being identified by said page address, and indicating an unsuccessful write to the base station.