[특허]Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system

Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04M-011/00 H04Q-007/00
출원번호	US-0088391 (1993-06-30)
발명자 / 주소	Cooper John R. (Tewksbury MA) Sonberg Kenneth W. (Medford MA)
출원인 / 주소	Electronic Data Systems Corporation (Plano TX 02)
인용정보	피인용 횟수 : 115 인용 특허 : 0

초록 ▼

This apparatus operates to discern temporal and spatial anomalies in the use of subscriber numbers in the cellular mobile telephone system. The detection of such anomalies is typically indicative of attempted fraudulent access to the cellular mobile telephone system via cloning of valid subscriber numbers. The detection of a bogus subscriber unit is accomplished by recording the call origination and termination patterns associated with the subscriber number. The cloning detection apparatus makes use of call origination data to identify concurrent call originations or receptions for a single subscriber number. However, such events represent only a small portion of the fraudulent calls and a more extensive analysis is typically required to identify subscriber number cloning. This further analysis includes a spatial analysis of successive call activity for a subscriber number. If two successive calls for a particular subscriber number are detected in a time interval that is too short to justify the geographic separation of the subscriber unit for the two successive calls, then this apparatus identifies these two call connections as including one subscriber unit having a cloned subscriber number.

대표청구항 ▼

In a cellular mobile telephone system, wherein a plurality of mobile telephone switching offices, each of which serves a plurality of cell sites for establishing cellular cell connections with mobile subscriber units located in a geographical area covered by said cell sites, are connected to a subscriber verification system which validates the authorization of subscriber units, each of which is identified by a unique subscriber identification code assigned to said subscriber unit, to receive service when roaming outside of the subscriber\s home mobile telephone switching office, apparatus in said subscriber verification system to detect subscriber identification code cloning comprising: means, responsive to a one of said subscriber units originating a cellular cell connection, for storing data indicative of a subscriber unit identification code assigned to said one subscriber unit and real time call data associated with said cellular call connection; and means for detecting a temporal anomaly indicative of subscriber number cloning in said stored call data.

이 특허를 인용한 특허 (115)

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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
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연합인증

Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system 원문보기

초록 ▼

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연구과제 타임라인

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Apparatus for detecting and preventing subscriber number cloning in a cellular mobile telephone system 원문보기

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이 특허를 인용한 특허 (115)

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