Transmission and reception of pager signals without useless sampling operation

摘要

In a pager receiver for receiving first through N-th pager signals successively at a first predetermined period (T)) and comprising a battery saving switch and a receiving circuit connected to the switch and enabled while the switch is in an on state, a controller puts the switch in the on state repeatedly at a second predetermined period (T2) to make the receiving circuit receive at least a portion of a preamble signal (PA) and whole of a synchronization (SS) and an address (AS) signals of the first pager signal (RS1) and detect an address signal end of the first pager signal. The controller keeps the switch in the on state to make the receiving circuit receive at least a part of the preamble signal and whole of the synchronization and the address signals of each of the second (RS2) through the N-th pager signals and detect the address signal end of each of the second through the N-th pager signals. The controller puts the switch in the off state from detection of the address signal end of each signal of the first through the N-th pager signals until lapse of a preselected duration (D3) from reception of the synchronization signal of the each signal.