Communications: electrical – Continuously variable indicating – With meter reading
Patent
1988-01-07
1989-10-17
Brigance, Gerald
Communications: electrical
Continuously variable indicating
With meter reading
34082547, 379 57, 370 76, H04Q 900
Patent
active
048750387
ABSTRACT:
An acknowledge back (ack-back) paging system is provided 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.
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Jasinski Leon
Siwiak Kazimierz
Steel Francis R.
Brigance Gerald
Ingrassia Vincent B.
Motorola Inc.
Zitelli William E.
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