Method for random-access radio-frequency data communications

Details Method for random-access radio-frequency data communications Method for random-access radio-frequency data communications

1982-06-18

1984-10-16

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

455 54, 3408255, 34082507, 34082536, H04B 360, H04B 1700, H04Q 700

Patent

active

044778090

ABSTRACT:
A method for random-access data communications to and from a central controller, from and to at least one of a plurality of remote stations, by providing at least one radio-frequency channel having the bandwidth thereof allocated into at least a message channel and an acknowledgment channel. The message channel fractional bandwidth is greater than the acknowledgment channel fractional bandwidth. Status data is transmitted from each of the remote stations to the central controller, with the central controller acknowledging receipt thereof. In the event of a change of status message being received by the central controller, the central controller decides upon a course of action for the system and broadcasts system action messages, each addressed to a particular remote station at which the action is to be carried out. The operational system modes include a link-monitoring mode for checking the radio-frequency link paths between each of the remote stations and the central controller and a polling mode to sequentially request status from each of the remote stations.

REFERENCES:
patent: 3805242 (1974-04-01), Matsumoto et al.
patent: 3806804 (1974-04-01), Mills et al.
patent: 3973200 (1976-08-01), Akerberg
patent: 4369443 (1983-01-01), Giallanza et al.
patent: 4414661 (1983-11-01), Karlstrom
patent: 4415770 (1983-11-01), Kai et al.

Affiliated with

Also associated with

Rating

Method for random-access radio-frequency data communications does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for random-access radio-frequency data communications, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for random-access radio-frequency data communications will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947632