Two way paging system with answer-back function

Details Two way paging system with answer-back function Two way paging system with answer-back function

1995-02-03

1996-10-01

Eisenzopf, Reinhard J.

Telecommunications

Transmitter and receiver at separate stations

455 84, 34082544, H04B 708

Patent

active

055618480

ABSTRACT:
After bit synchronization and frame synchronization are established in accordance with a transmission signal from a transmission office, reception RX is stopped until a reception timing assigned to a group of a portable radio unit comes. A receiving operation is performed again at the reception timing assigned to the group of the unit. If the ID code of the received signal coincides with the ID of the unit, an informing operation is performed. At the same time, transmission TX is performed. A transmitting operation is performed during a transmission signal stop period TXOF upon completion of transmission of data corresponding to all the eight groups. The transmission timing of the portable radio unit is based on the fact that frame synchronization is established in the reception RX, so that transmission TX is performed at a timing assigned to the group of the unit in the reception RX. The above-described timings prevent the transmission office and the portable radio unit from performing simultaneous transmission.

REFERENCES:
patent: 4430756 (1984-02-01), Dolman et al.
patent: 4542531 (1985-09-01), Fukumura
patent: 4758834 (1988-07-01), Sato et al.
patent: 4882579 (1989-11-01), Siwiak
patent: 4951044 (1990-08-01), Nelson et al.
Vance et al., IEE Proceedings F. Communications, Radar and Signal Processing, vol. 129, No. 1. Feb. 1982, pp. 2-6.

Affiliated with

Also associated with

Rating

Two way paging system with answer-back function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two way paging system with answer-back function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two way paging system with answer-back function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1510119