[특허]Time-of-flight radio location system

[미국특허] Time-of-flight radio location system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-001/24
출원번호	US-0300909 (1994-09-06)
발명자 / 주소	McEwan Thomas E. (Livermore CA)
출원인 / 주소	The Regents of the University of California (Oakland CA 02)
인용정보	피인용 횟수 : 148 인용 특허 : 0

초록 ▼

A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver samples the sequence of electromagnetic pulses with controlled timing in response to a receive timing signal, and generates a sample signal in response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays. The receive timing signal sweeps over the range of delays in a sweep cycle such that pulses in the sequence are sampled at the pulse repetition rate, and with different delays in the range of delays to produce a sample signal representing magnitude of a received pulse in equivalent time. Automatic gain control circuitry in the receiver controls the magnitude of the equivalent time sample signal. A signal processor analyzes the sample signal to indicate the time-of-flight of the electromagnetic pulses in the sequence.

대표청구항 ▼

A method for detecting position of an object at a range of less than 10 feet, comprising: mounting a transmitter on the object; transmitting from the transmitter a sequence of electromagnetic pulses; detecting time-of-flight of the electromagnetic pulses from the transmitter to a receiver by sampling the sequence of pulses with controlled timing to produce an equivalent time representation of a transmitted pulse at the receiver and processing the equivalent time signal to indicate the time-of-flight; and processing the time-of-flight to indicate position of the object.

이 특허를 인용한 특허 (148) 인용/피인용 타임라인 분석

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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Time-of-flight radio location system 원문보기

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[미국특허] Time-of-flight radio location system 원문보기

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이 특허를 인용한 특허 (148) 인용/피인용 타임라인 분석

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