Circuit arrangement for protecting a control channel from jammin

Details Circuit arrangement for protecting a control channel from jammin Circuit arrangement for protecting a control channel from jammin

1981-12-21

1984-02-28

Ng, Jin F.

Telecommunications

Transmitter and receiver at separate stations

Single message via plural carrier wave transmission

455 33, 455 56, 455 67, 179 2EB, H04B 100, H04B 700

Patent

active

044345062

ABSTRACT:
In a circuit arrangement of a control station in a radio communication system comprising a plurality of substations, such as a land mobile telephone system, a measuring circuit measures an intensity of electric field in an up control channel to the control station during each quiescent period of signals in the up channel to detect jamming waves. Each quiescent period preferably appears in the up control channel in response to selected control signals of a down control channel to the substations. On detection of the jamming waves, the control channel is switched to a preselected one of speech channels between the control station and substations by switching circuits to use the preselected speech channel as a new control channel.

REFERENCES:
patent: 4096440 (1978-06-01), Okasaka
patent: 4145657 (1979-03-01), Hanni
patent: 4352955 (1982-10-01), Kai et al.

Affiliated with

Also associated with

Rating

Circuit arrangement for protecting a control channel from jammin does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for protecting a control channel from jammin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for protecting a control channel from jammin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-762341