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Patent Searching and Data


Title:
RESTRICTED AREA TYPE BROADCAST COMMUNICATION SYSTEM FOR PERSONAL HANDY PHONE SYSTEM(PHS)
Document Type and Number:
Japanese Patent JP2001144679
Kind Code:
A
Abstract:

To solve problems of a conventional system where a conventional service utilizing position information of a PHS has been based on it that a terminal is converted into the position information and the PHS service has had no broadcasting communication service with a limited area.

The communication system is newly provided with a function of converting a connection number of a designated area (base station) into a PHS terminal number of a PHS resident in the base station area so as to attain broadcasting communication with a restricted area. This function may provide services of delivering district administration information, warning notice within a restricted area and contact from a school to pupils and parents or the like. Furthermore, shops or the like can inform possessors of PHS terminal resident in the vicinity of the shops about event information or the like. The communication system can widely be utilized for the district administration, safety of districts, and commercial activities and can considerably contribute to the society.


Inventors:
SATO JUN
Application Number:
JP36317899A
Publication Date:
May 25, 2001
Filing Date:
November 17, 1999
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H04B7/26; H04H20/00; H04H20/57; H04H20/61; H04H60/42; (IPC1-7): H04B7/26; H04H1/00
Attorney, Agent or Firm:
三好 秀和