Abstract: A page scanning device configured to generate a sequence mask for an expected frequency hopping sequence, select a first tone among a plurality of detected tones, first determine whether the first tone is included within an expected hop sequence, generate a first tone template in response to determining that the first tone is included within the expected hop sequence, align the first tone template with the plurality of detected tones based on the first tone, second determine whether the first tone template matches the plurality of detected tones, and detect a valid frequency hopping sequence in response to determining that the first tone template matches the plurality of detected tones.

Abstract: Methods and apparatuses are provided for adjusting a transmission gain in a transmitter of an electronic device. A transmitted signal is received at a digital signal processor (DSP) of the transmitter. The transmitted signal is also transmitted through a transmission path of the transmitter resulting in a load impedance. A looped-back signal is received at the DSP via a loop-back path of the transmitter that returns from the transmission path. The DSP estimates the load impedance from the transmitted signal and the looped-back signal. The DSP sets the transmission gain of the transmission path based on the load impedance and saturation values for a load current and a load voltage.

Abstract: A communications apparatus which operates using a multi-layer protocol stack, the communications apparatus comprising an application processor and a communications processor, wherein the communications processor is configured to handle all functionality related to paging of the communications apparatus without intervention from the application processor.

Abstract: A control signal (66, 70) for an amplifier (42, FIG. 6) can be switched between a high and a low level to control the shape of the pulse envelope (64, 68) of the amplifier output signal. The duration over which the control signal attains its high level is varied to control the shape of the envelope.