Personal mobile communications system having central station for paging mobile users via base stations

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5463672
SERIAL NO

07989695

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A personal mobile communications system comprises base stations (4-1.about.4-4) located in respective zones and a paging station (8) covering an area including the zones, or cells (5-1.about.5-4). The paging station and all base stations are connected to a public switched telephone network (PSTN). When a call is originated from a PSTN user (2) to a mobile user (10), the paging station receives a call-setup request from the PSTN containing the address codes of both PSTN and mobile users, and broadcasts the call-setup signal over the covered cells. One or more base stations (4-1.about.4-3) receive the call-setup signal and, in response, broadcast an alert signal. One of the base stations (4-2) receives an off-hook signal from the alerted mobile station (10) and dials the PSTN user address code contained in the call-setup signal to the PSTN to establish a connection (15; 147.about.149; 176.about.178) between the calling and called parties (2,10).

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Patent Owner(s)

  • NEC CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kage, Kouzou Tokyo, JP 25 616

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