发明授权
- 专利标题： Method of communication in a radio frequency identification system
- 专利标题（中）： 射频识别系统中的通信方法
-
申请号： US09955345申请日： 2001-09-18
-
公开(公告)号： US06763996B2公开(公告)日： 2004-07-20
- 发明人: Patrick L. Rakers , Timothy James Collins , Richard Stanley Rachwalski , Michael L. Bushman
- 申请人： Patrick L. Rakers , Timothy James Collins , Richard Stanley Rachwalski , Michael L. Bushman
- 主分类号： G06F1700
- IPC分类号： G06F1700
摘要：
In accordance with the present invention, a radio frequency identification (RFID) device comprises a plurality of data fields. The RFID device transmits a data symbol from a data field, receives an acknowledgement symbol, and compares the transmitted data symbol to the received acknowledgement symbol. The RFID device repeats these steps until data transmission is complete as long as each transmitted data symbol is equivalent to a corresponding received acknowledgement symbol; otherwise, the RFID device maintains the data field from which the last data symbol was transmitted, and temporarily suspends data transmission. When the RFID receives a request for RFID devices temporarily suspended in a given data field to resume data transmission, if the given data field in the request is equivalent to the data field that was maintained, the RFID device repeats the steps above starting with the first symbol in the data field that was maintained.