[특허]Object identifier generator for distributed computer system

Object identifier generator for distributed computer system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-001/02
출원번호	US-0260908 (1988-10-21)
발명자 / 주소	Miller Steven (Newton MA)
출원인 / 주소	Digital Equipment Corporation (Maynard MA 02)
인용정보	피인용 횟수 : 27 인용 특허 : 0

초록 ▼

An identifier generator produces unique identifiers for objects in a distributed computer system by concatenating (i) the identifier of the node associated with the object－a unique space component; (ii) the current time read from an associated clock, adjusted such that no two identifiers created by the same generator have the same current time, regardless of the resolution of the associated clock－a unique time component; and (iii) a random name-sequence; and (iv) a (software/hardware) version number. The generator stores the time and the random name-sequence components. When the next identifier is generated, the generator compares the then current time with the stored time component. If the times are equal, the current time is adjusted and the adjusted time is used as the new identifier time component. If the current time is less than the stored time, the generator changes the stored random name-sequence component and uses it and the current time as identifier components. If the random name sequence component used in the previous identifier is lost, the generator generates a new random name sequence and uses the new sequence and the then current time as identifier components. If the time component used in the previous identifier is lost, the generator changes the random name-sequence is a predetermined manner and uses it and the then current time as identifier components.

대표청구항 ▼

A device for generating identifiers for objects in a computer system, said device comprising: A. a clock for designating the current time; B. means for generating a random number sequence; C. a first storage means for storing the time and the random number sequence components of a generated identifier, the contents of said storage means being updated after each identifier is generated; D. a comparator for comparing the current time read from said clock and the time stored in said storage means; E. time adjusting means connected to receive the current time from said clock and responsive to the output of said comparator for adjusting the current time if the current time and the stored time are equal; F. sequence adjusting means connected to receive the random number sequence from said first storage means and responsive to the output of said comparator for adjusting said stored random number sequence if the current time is less than the stored time; and G. a second storage means responsive to the output of said time adjusting means and the output of said sequence adjusting means for storing said outputs as components of the current identifier wherein said current time represents days, months, years, hours, minutes, seconds and fractions of seconds.

이 특허를 인용한 특허 (27)

Farber, David A.; Lachman, Ronald D., Accessing data in a data processing system.
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Farber, David A.; Lachman, Ronald D., Computer file system using content-dependent file identifiers.
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Farber, David A.; Lachman, Ronald D., Controlling access to data in a data processing system.
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Rose, Anthony, Filter for a distributed network.
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Rose, Anthony, Filter for a distributed network.
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Chen, Wen-Yu; Ho, Kun-Hsin, I/O module expansion unit and distributed automation system.
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Cohen, Norman Howard, Method and apparatus for decentralized, invertible generation of bounded-length globally unique replica identifiers.
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Martin, Bruce E.; Dinkins, Jefferson A.; Hapner, Mark W., Method and apparatus for determining equality of objects in a distributed object environment.
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Boxley, Jr., Don; Ernst, Peter H., Method and apparatus for linking non-geometric data to geometric elements of a CAD file independent of the proprietary CAD file format.
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Shorter David Uel, Method and system for the determination of a particular data object utilizing attributes associated with the object.
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Wortmann,Joseph P.; York,Gary, Methods and apparatus for streaming DICOM images through data element sources and sinks.
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Dockter Michael Jon (Hollister CA) Farber Joel Frank (San Jose CA) Pauser Michael Leon (San Jose CA) Seppi Kevin Darrell (Austin TX) Tolleson David Wayne (San Jose CA), System and method for block generation of monotonic globally unique tag values, where restart tag value due to failure s.
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Link,Craig A.; Berry,Nicholas; Pachosa,Dean M., System and method for producing unique account names.
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Huang, Andrew J., System and method for state synchronization.
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Belov, Mikhail Vladimirovich; Zagoskin, Danil Aleksandrovich, System and method of request processing in a distributed data processing network.
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Thomas S. Lee, Technique for creating a unique item identification number in a multi-threaded/multi-process environment.
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Lal, Reshma; Martin, Jason; Nemiroff, Daniel, Trusted time service for offline mode.
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Merrells,John; Natkovich,Olga; Good,Gordon; Smith,Mark C., UniqueID-based addressing in a directory server.
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Tso, Theodore Y., Use of a UUID as a time epoch to determine if the system clock has been reset backwards in time.
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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

연합인증

Object identifier generator for distributed computer system 원문보기

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이 특허를 인용한 특허 (27)

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Object identifier generator for distributed computer system 원문보기

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이 특허를 인용한 특허 (27)

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