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AssigneeResearch In Motion Limited
InventorsLizhong Zhu, Michael Corrigan, George Mankaruse
Estimating the term…
A portable audio device having reduced sensitivity to RF interference over a predetermined frequency range from an adjacent mobile wireless communications device may include a portable housing, a battery carried thereby, a recharging power input connected to the battery, a digital signal input, and an audio analog signal output. A digital-to-analog converter (DAC) may be carried by the portable housing and powered by the battery for converting a selected digital audio file from a memory into an analog audio signal. An audio analog amplifier may be connected between the DAC and the audio analog signal output. A first RF filter(s) may be connected to the recharging power input, and a second RF filter(s) may be connected to the audio analog signal output, both for reducing RF interference over the predetermined frequency range from the adjacent mobile wireless communications device.
A portable electronic device comprising:
A portable electronic device comprising:
A method for reducing sensitivity of a portable electronic device to RF interference, the portable electronic device comprising a portable housing, a battery carried by the portable housing, a recharging power input coupled to the battery, a signal input, an audio signal output, a memory carried by the portable housing and powered by the battery for storing audio files input thereto via the signal input, and an audio analog amplifier coupled between the memory and the audio signal output, the method comprising:
Dependencies are inferred from the claim text.