Patent ID: 6160490
Filing Date: 2000-12-12
Classification: G05F,H02J,H04W,Y02D

Abstract:
A selective call receiver operating from a battery, comprising:a battery monitor coupled to the battery;a radio receiver;a regulator coupled to the battery and the radio receiver;a capacitor coupled to the regulator and the radio receiver; anda processor coupled to the battery monitor, the radio receiver and the regulator, the processor:determine from the battery monitor an energy level of the battery,configures the regulator to supply a first limited current to the radio receiver and the capacitor for a first predetermined time when the energy level is above a predetermined threshold,configures the regulator to supply a second limited current to the radio receiver and the capacitor for a second predetermined time when the energy level is at or below the predetermined threshold, wherein the first and second limited currents, and the first and second predetermined times are not the same, andenables the regulator to charge the capacitor and to power the radio receiver.