04680785 is referenced by 246 patents and cites 11 patents.

A personal-call communication system wherein a personal identification number is assigned to each telephone user, and an arbitrary person is called by wireless by dialing a corresponding personal calling number. The called person sets an ID-card-type portable device memorizing one's own personal identification information in a card reader of a telephone set, and communicates with the calling party over the wire system via an exchange. The system allows a direct call of an individual person, who in turn has a choice as to whether or not a response should be taken depending on the calling party whose name is indicated to the called party.

Title
Personal-signaling communication system
Application Number
6/657199
Publication Number
4680785
Application Date
October 3, 1984
Publication Date
July 14, 1987
Inventor
Yoshio Otsuka
Koriyama
JP
Tadahiko Akiyama
Koriyama
JP
Agent
Antonelli Terry & Wands
Assignee
Nippo Communication Industrial
JP
IPC
H04Q 7/04
H04M 1/57
H04M 1/276
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