Communication system with repeatedly allocated channel ID number

Details Communication system with repeatedly allocated channel ID number Communication system with repeatedly allocated channel ID number

1996-05-31

1997-11-25

Kizou, Hassan

Multiplex communications

Communication over free space

Combining or distributing information via frequency channels

370496, 455 341, H04J 102, H04Q 700

Patent

active

056919832

ABSTRACT:
An available frequency range previously assigned to the communication system is divided into a plurality of subranges each including a plurality of frequency channels to which channel identifiers are assigned, respectively. The channel identifiers are repeatedly assigned to all the frequency channels in the subranges. In such a channel assignment, a transmitting side transmits a signal including a desired channel identifier corresponding to a desired frequency channel. At a receiving side, after detecting a frequency acquisition of the demodulator, the desired channel identifier is detected based on the received signal when the frequency acquisition of the demodulator is detected. When the frequency acquisition of the demodulator is detected and the desired channel identifier is detected, a local oscillation frequency sweeping for demodulator is locked to receive the signal from the transmitting side.

REFERENCES:
patent: 4317215 (1982-02-01), Tabata et al.
patent: 5077828 (1991-12-01), Waldroup
patent: 5093924 (1992-03-01), Toshiyuki et al.
patent: 5263176 (1993-11-01), Kojima et al.
Patent Abstracts of Japan, vol. 18, No. 165 (E-1527), Mar. 18, 1994.

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