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특허 상세정보

Method and apparatus for automatic lap counting

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01C-022/00   
미국특허분류(USC) 377/242 ; 377/5 ; 455/344 ; 340/556
출원번호 US-0083514 (1987-08-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 65  인용 특허 : 2
초록

The present invention provides a method and apparatus for counting the number of occurrences that a mobile unit comes within range of a stationary unit. The invention is useful in counting the number of laps which a runner or swimmer completes through a course. In one aspect, the present invention includes a timer which, in cooperation with the information generated by the lap counter, produces information corresponding to the lap time, average minutes per mile and other such data. In a preferred embodiment, a stationary transmitter emits an infrared sig...

대표
청구항

A device which allows an individual in a recurring event to automatically count the number of times that said person passes within range of a stationary point on a recurring event path such that each pass by said person is counted as one event, said device comprising: a receiver having means for attaching said receiver to a person, said receiver further having photoelectric detector means for detecting an infrared light beam and means for counting discrete detection signals; an infrared light beam transmitter for placement at said stationary point, said ...

이 특허를 인용한 특허 피인용횟수: 65

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