[특허]Locating and authentication system

[미국특허] Locating and authentication system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/00
출원번호	US-0339643 (1994-11-14)
발명자 / 주소	Hopper Andrew (Cambridge GB3) Want Roy (Cambridge GB3) Needham Roger M. (Cambridge GB3) Wheeler David J. (Cambridge GB3)
출원인 / 주소	Olivetti Research Limited (Cambridge GBX 03)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

A system for locating any mobile body of a plurality thereof within a predetermined environment, wherein each mobile body carries a transmitter (10 to 18), each transmitter producing a unique identifying signal, and a plurality of receivers (20 to 32) located in a corresponding plurality of defined regions in the environment, each receiver incorporating a FIFO buffer memory (28) into which carrier identifying data is inserted and a controller for interrogating the receiver means in turn to link the identification data with location data. (FIG. 1 ). A carrier authentication system is also described.

대표청구항 ▼

An authentication system for verifying the identity of a mobile carder comprising a static base station comprising: a processor unit for generating a random number; memory means for storing said random number and a plurality of identification numbers: and an infra-red PPM transmitter for transmitting said random number in the form of a PPM signal; wherein said mobile carrier comprises: an infra-red PPM signal detector for detecting said PPM signal when said mobile carrier is within the vicinity of said static base station; a signal amplifier connected to said infra-red PPM signal detector for amplifying said PPM signal; a PPM signal decoder connected to said signal amplifier for decoding said PPM signal in the form of said random number; a first latch for receiving said random number; a memory wherein is stored a predetermined secret password; a first encryption table connected to said memory and to said latch for generating a first encrypted number in response to said predetermined secret password and to said random number; a second encryption table connected to said first encryption table for generating a second encrypted number in response to said first encrypted number; a second latch for receiving said second encrypted number; a PPM encoder connected to said second latch for combining said second encryption number with an identification number of said mobile carder and for generating a corresponding serial number in the form of an identification signal; a buffer amplifier connected to said PPM encoder for amplifying said identification signal; and an infra-red PPM signal transmitter connected to said buffer amplifier for transmitting said identification signal to said static base station, said buffer amplifier being connected also to said signal,amplifier for inhibiting said signal amplifier whilst said infra-red PPM signal transmitter is transmitting said identification signal; wherein said static base station further comprises: an infra-red PPM detector for detecting said identification signal from said mobile carrier; a look-up table wherein all the enabled secret passwords are stored; a first and a second static encryption tables, having the same configuration of said first and second encryption tables of said mobile carrier, for generating a response signal in response of said random number and of a corresponding secret password stored in said look-up table; and comparison means for comparing said identification signal received from said mobile carrier with said response signal and generating a consequent authentication signal, said comparison means generates said authentication signal solely when said identification signal and said response signal are identical.

이 특허를 인용한 특허 (45) 인용/피인용 타임라인 분석

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Wildman,Timothy D., Article locating and tracking system.
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Morper, Hans-Jochen, Method and device for authenticated access of a station to local data networks in particular radio data networks.
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Ulrich, Daniel J.; Wagener, Michael Edward; Patel, Sanjeev; Schmid, Joseph James; Jennings, Robert J., Personnel and asset tracking method and apparatus.
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Bush,Ronald Roscoe, Secure encryption of data packets for transmission over unsecured networks.
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Lai, Yu Sheng; Wang, Wen Yang, System and method for location determination using time differences.
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Dempsey,Michael K., System and method for performing object association using a location tracking system.
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Stephen Michael Cole ; Jeffrey Alan Schanhals ; George William Vallillee, IV, System and method for supporting a worker in a distributed work environment.
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Wildman, Timothy D.; Riley, Carl W.; McNeely, Craig A.; Fleck, Thomas M.; Gallant, Dennis J.; Huster, Keith A., Universal communications, monitoring, tracking, and control system for a healthcare facility.
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Mynatt, Elizabeth D.; Back, Maribeth; Want, Roy; Ellis, Jason; Edwards, W. Keith; Stone, Maureen C., Virtual interface for configuring an audio augmentation system.
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Wildman, Timothy D., Waste segregation compliance system.
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Wildman,Timothy D., Waste segregation compliance system.
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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

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[미국특허] Locating and authentication system 원문보기