Radio-pager and method of radio-paging

Details Radio-pager and method of radio-paging Radio-pager and method of radio-paging

1995-03-03

1998-04-07

Bost, Dwayne

Telecommunications

Transmitter and receiver at separate stations

455426, 455458, 34082544, H04Q 706, H04Q 710

Patent

active

057376883

ABSTRACT:
The purpose of the invention is to provide a radio-pager that allows a user to set any desired call-sign therein and method of radio-paging that not only conducts person-to-person communication but easily realizes transmission from one person to a plurality (N) of persons such as simultaneous transmission of the same message or commercial massage to a number of pagers. The pager receives radio waves by an antenna, demodulates the received signal into digital data by a radio demodulator and transfers the data to a digital circuit that corrects the data for code transmission error caused by affection of fading. A CPU of the pager examines the correctly reproduced data and extracts a call-sign from the data stream. The CPU 25 reads a call-sign stored in a RAM and examines whether the extracted call-sign corrsponds to the stored call-sign. The pager drives an electronic speaker when the CPU detects that both call-signs are identiacal with each other.

REFERENCES:
patent: 5473667 (1995-12-01), Neustein
patent: 5583921 (1996-12-01), Hidaka
"Integrated and Varied Pocket Bells", Wada, Technical Journal of NTT, pp. 27-35, Apr. 1989.

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