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Mobile communications equipment which detects and notifies when it is moved into or out of a service area 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/00
출원번호 US-0112801 (1993-08-27)
우선권정보 JP-0240976 (1992-09-09)
발명자 / 주소
  • Takahara Yasuaki (Yokohama JPX) Sudo Shigeyuki (Fujisawa JPX) Sekiguchi Shuuichi (Yokohama JPX)
출원인 / 주소
  • Hitachi, Ltd. (Tokyo JPX 03)
인용정보 피인용 횟수 : 131  인용 특허 : 0

초록

A mobile communications equipment which communicates with another equipment through a base station, and in which the state change of the mobile communications equipment based on the movement thereof, such as the movement from outside a service area into the service area, is detected and is notified

대표청구항

A mobile communications equipment for communicating with another equipment through a base station, comprising: a radio-frequency signal circuit which receives a signal sent from the base station, and which transmits a signal directed toward said base station; a demodulation circuit which demodulates

이 특허를 인용한 특허 (131)

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