초록 ▼

An acknowledge back (ack-back) paging system is provided which includes a central station which transmits a group of message signals to an 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

An acknowledge back (ack-back) paging system is provided which includes a central station which transmits a group of message signals to an 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 signals using different respective pseudorandom codes, a different pseudorandom code being dynamically allocated to each of the pagers in the group.

대표청구항 ▼

An acknowledge back pager having a unique address associated therewith, said pager comprising; receiving means for receiving paging signals from a central station, said paging signals including a batch of M pager addresses transmitted in a sequential order during a first time period, wherein M is th

An acknowledge back pager having a unique address associated therewith, said pager comprising; receiving means for receiving paging signals from a central station, said paging signals including a batch of M pager addresses transmitted in a sequential order during a first time period, wherein M is the number of pager addresses in said batch; decoding means, coupled to said receiving means, for detecting the presence of said pager\s address within said batch of M addresses; address order determining means, coupled to said decoding means, for determining the order of said pager\s address within said batch of M addresses, and pseudorandom code transmitting means for transmitting an acknowledge back signal at a selected frequency, said acknowledge back signal including a selected one of a plurality of M substantially orthogonal pseudorandom codes, said selected one of said codes exhibiting a predetermined relationship to the order of the address of said pager within said batch of M addresses.