[특허]Real time digital scan converter

Real time digital scan converter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H03K-013/24
출원번호	US-0264108 (1981-05-15)
발명자 / 주소	Berry Raymond J. (Bellevue WA) Linkhart Ken R. (Seattle WA) Parker Edward J. (Seattle WA)
출원인 / 주소	Advanced Technology Laboratories, Inc. (Bellevue WA 02)
인용정보	피인용 횟수 : 30 인용 특허 : 6

초록 ▼

A digital scan converter is disclosed wherein signal information supplied by a sector scanning surveillance system relative to a polar coordinate system is converted to a signal for driving a television-type display or other Cartesian coordinate device by: (a) sampling the signal associated with each consecutive scanning path of the surveillance system at a rate determined by the azimuthal angle that defines the scanning path of interest; (b) storing each set of signal samples as a column of data in a rectangular memory array; (c) accessing the stored data on a row-by-row basis; and (d) utilizing a previously determined mapping strategy to cause each accessed signal sample to form a segment of a line of display within the Cartesian-formulated display devices so that the length of the segment formed by each signal sample is determined by the row and column address of the storage location that is associated therewith when forming a television compatible signal, each signal sample dictates video signal level during a portion of a corresponding horizontal sweep period that is determined by the mapping strategy.

대표청구항 ▼

A digital scan converter for use with a scanning system which supplies a sequence of n return signals having a one-to-one correspondence with n radially extending scanning paths that are angularly spaced apart from one another about the azimuthal axis of a polar coordinate system to define a sectorial surveillance region, each of said return signals representing signal reflection occurring along said corresponding scanning path, said digital scan converter for supplying output signal information representative of at least a portion of said sectorial surveillance region relative to a Cartesian coordinate system wherein the first axis thereof is substantially parallel to said azimuthal axis of said polar coordinate system and the second axis of said Cartesian coordinate system is perpendicular to the first axis thereof, said digital scan converter comprising: signal sampling means connected for receiving said sequence of n return signals, said signal sampling means including means for sampling each of said return signals at a rate proportional to the cosine of the angle between said corresponding scanning path and said azimuthal axis of said polar coordinate system to supply n ordered sets of signal values, the successive signal values of each said ordered set of signal values representing signal reflection occurring from incremental regions of said surveillance region that are located along said corresponding scanning path at equally spaced apart positions relative to said first axis of said Cartesian coordinate system; memory means connected for receiving and storing said n ordered sets of signal values, said memory means being addressable for accessing those ones of said signal values that are associated incremental regions of said surveillance region that lie along m equally spaced apart traces that are substantially parallel to said second axis of said Cartesian coordinate system to form m ordered sets of signal values in which successive signal values of each ordered set are associated with the successive scanning paths of said surveillance system; output processor means for sequentially receiving a first sequence of signal values that is formed from an associated one of said m ordered sets of signal values, and for supplying a second sequence of digital signals that represents signal reflection occurring at substantially equally spaced apart locations along that one of said m traces that is associated with the sequence being receiving by said output processor means; and mapping means for controlling said output processor means, said mapping means including addressing means for sequentially accessing the sets of said m ordered sets of signal values, means for sequentially accessing the n signal values within each of said m ordered sets and individually supplying the sequentially accessed n signal values to said output means as said first sequence of signal values, said mapping means further including means for operating said output processor means to establish a predetermined number of consecutive elements within said second sequence of digital signals equal to that one of said n signal values currently being supplied to said output processor means, the predetermined number associated with each of said stored signal values being determined on the basis of the location of the associated one of said m traces and the associated one of said n scanning paths.

이 특허에 인용된 특허 (6)

Miller ; Jr. Monroe A. (N. Lauderdale FL), Digital rq 상세보기

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

연합인증

Real time digital scan converter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 (30)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Real time digital scan converter 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 (30)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트