Knowledge back pager with frequency control apparatus

Details Knowledge back pager with frequency control apparatus Knowledge back pager with frequency control apparatus

1988-01-07

1989-04-18

Brigance, Gerald L.

Communications: electrical

Continuously variable indicating

With meter reading

34082547, 3403111, 455 31, G08B 522

Patent

active

048231231

ABSTRACT:
An acknowledge back (ack-back) pager is provide for use in a paging system which includes a central station which transmits a group of message signals to a group of ack-back pagers which are addressed as a group. The users of the group of addressed ack-back pagers indicate a response to their respective pagers thus providing ack-back data. The pagers in the group of addressed ack-back pagers then simultaneously transmit back to the central station their ack-back data on different frequency sub-bands, a different frequency sub-band being allocated to each of the pagers in the group. The invention provides apparatus for controlling the frequency of the selected sub-band with very high accuracy.

REFERENCES:
patent: 3973200 (1976-08-01), Akerberg
patent: 4194153 (1980-03-01), Masaki et al.
patent: 4208630 (1980-06-01), Martinez
patent: 4352955 (1982-10-01), Kai et al.
patent: 4392242 (1983-07-01), Kai
patent: 4466001 (1984-08-01), Moore et al.
patent: 4590473 (1986-05-01), Burke et al.
patent: 4604583 (1986-08-01), Aoyagi et al.
patent: 4636741 (1987-01-01), Mitzlaff
patent: 4646082 (1987-02-01), Engel et al.
patent: 4654882 (1987-03-01), Ikeda
patent: 4713808 (1987-12-01), Gaskill et al.

Affiliated with

Also associated with

Rating

Knowledge back pager with frequency control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Knowledge back pager with frequency control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Knowledge back pager with frequency control apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2399046