ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

특허 검색
구분 출원국
출원년도 ~ 키워드

상세정보

등록 타임스탬프 예측 장치 및 방법

타임스탬프 예측 장치 및 방법
이미지 확대
발명자
이승우, 이정희, 이범철, 백동명, 최강일, 박영호, 오상윤
출원번호
13328269 (2011.12.16)
공개번호
20120155497 (2012.06.21)
등록번호
8934506 (2015.01.13)
출원국
미국
협약과제
10MI2800, Scalable 마이크로 플로우 처리기술개발, 이범철
초록
An apparatus includes a difference extraction unit to extract a difference between a second time stamp value, which is obtained by adjusting a first time stamp value that is measured at a time of arrival of a synchronization message transmitted by the master at a Layer 3 to be synchronized in frequency with a clock of the master, and a third time stamp value, which is measured at a time of departure of the synchronization message from the master; a minimum filter to select a minimum from one or more difference values extracted by the difference extraction unit; and a delay variation calculation unit to estimate a time of arrival of a current synchronization message at the Layer 3 based on the selected minimum and calculate a delay variation.
KSP 제안 키워드
Calculation unit, Difference extraction, Extraction unit, Minimum filter, Time Stamp, delay variation, time of arrival(TOA)