|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||370/338; 455/404.2; 455/440|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 33|
Embodiments of the present invention include a wireless access point that acquires and processes radio frequency identification (RFID) information. The wireless access point may be coupled to a network of RFID readers over a wireless network. The RFID readers may read a plurality of RFID tags and transmit information to one or more readers. The readers may, in turn, transmit the RFID information to a wireless access point. The wireless access point may include a middleware layer for performing a variety of RFID data processing functions. In one embodimen...
1. A method of determining tag positions based on a double difference calculation of measured tag signals in a distributed tag processing system comprising a set of tag readers, the method comprising: at each of a plurality of tag readers in the set of tag readers, receiving tag signals comprising tag data from a same plurality of tags residing in an overlapping coverage area of the plurality of tag readers;at each particular tag reader in the plurality of tag readers, determining an initial position of each tag in the plurality of tags based on a first ...