로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0304340 (1994-09-12) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 288 인용 특허 : 0 |
The present invention uses a novel adaptation of a tree splitting algorithm applied to Radio Frequency (RF) tagging technology to identify many tags in the RF field of a base station. The invention uses the tree splitting algorithm to identify a single tag in a field of a plurality of radio frequenc
The present invention uses a novel adaptation of a tree splitting algorithm applied to Radio Frequency (RF) tagging technology to identify many tags in the RF field of a base station. The invention uses the tree splitting algorithm to identify a single tag in a field of a plurality of radio frequency tags. Once the single tag is identified, the identified tag is placed in a Data－Exchange state where the base station can access data from the tag memory by using information that identifies the tag.
a radio frequency tag for communicating with a base station, comprising: a. an antenna and tag radio frequency circuit for sending and receiving radio frequency signals to and from the base station; b. a tag memory for storing tag data; c. a tag logic circuit connected to the tag radio frequency cir
a radio frequency tag for communicating with a base station, comprising: a. an antenna and tag radio frequency circuit for sending and receiving radio frequency signals to and from the base station; b. a tag memory for storing tag data; c. a tag logic circuit connected to the tag radio frequency circuit and the tag memory, the tag logic circuit having a tag state register that indicates the tag is in a state that is one of the states including an ID and Data Exchange, the tag logic further having a state counter and a random number generator; and d. a tag state selector run by the tag logic placing the tag in the ID state by setting the state register to ID when the base station sends the tag an identification command and the tag state selector upon receiving a Fail command from the base station causing a state counter value to increase in the state counter if: a. the state counter has a value not equal to a predetermined value, or b. the state counter has a value equal to the predetermined value and the random number generator has a given value, the tag not transmitting the tag identification information while the state counter value is not equal to the predetermined value and the tag state selector further causing the random number generator to generate a new random value.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.