[특허]Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques

Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-005/12 A63B-057/00
출원번호	US-0561579 (1990-08-02)
발명자 / 주소	Wang James J. (2625 Monterey Rd. San Marino CA 91108) Grayson Robert M. (3082 Inverness Dr. Los Alamitos CA 90720)
인용정보	피인용 횟수 : 153 인용 특허 : 0

초록 ▼

The invention disclosed herein is directed to a method and apparatus which employs a spread-spectrum based radiolocation system, using hand-held receiver units and fixed-position reference transmitters, to determine distance and direction between a golfer and key locations on a golf course, such as the distance and direction to a particular pin. The plurality of timing reference transmitters which are located throughout the vicinity of the golf course broadcast a spread-spectrum ranging signal consisting of a radio-frequency carrier directly modulated by a periodic pseudo-noise (PN) coded or similar sequence. Each transmitter broadcasts at the same RF signal but a unique PN-coded sequence is assigned to each transmitter. Golfers are provided with the hand-held receiving unit which receives the transmitter spread-spectrum signals and which synchronizes to the spread-spectrum signals in order to obtain range estimates to a selected set of reference transmitters. The hand-held receivers also include memory to store the coordinates of the reference transmitters and the pin positions and other reference points for each hole on the golf course, which are either pre-loaded into memory or transmitted (as modulating data) with the ranging signal. Each hand-held unit also includes a digital processor which incorporates a hyperbolic location algorithm to compute the hand-held unit position based on the estimated ranges to the selected transmitters and the reference transmitter coordinates. The distance and direction from the current position to the pin or other selected reference points is then displayed via an appropriate medium on the hand-held unit.

대표청구항 ▼

A system for determining the distance from a first point on a golf course to a second point on the golf course, comprising: a plurality of transmitters provided within or proximate to the boundaries of the golf course, each of said transmitters provided with a means for transmitting the same RF signal as all of the transmitters, said RF signal modulated by a spread-spectrum pseudo-noise (PN) coded sequence unique to each of said transmitters; at least one portable receiver unit capable of receiving the signals transmitted by said transmitters, said receiver provided with the PN codes for each of said transmitters and including a means for acquiring the reference coordinate with respect to a reference point for each of said transmitters as well as the coordinates of various features on the golf course, including the position of each of the holes on the golf course, said receiver also provided with a processor for determining the position of said receiver based upon time differences of the epochs of each of said transmitter\s PN code and the PN code for each of said transmitters provided in said receiver, said receiver provided with a means for determining the distance between said receiver and a specified second point based upon the determined position of said receiver and a second point, said receiver provided with an input means for inputting the second specified point and a display means for displaying the distance and direction to the second specified point.

이 특허를 인용한 특허 (153)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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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Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques 원문보기

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Golf course ranging and direction-finding system using spread-spectrum radiolocation techniques 원문보기

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