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US 9,872,117 B2Granted
Device and method for adjusting an output to an audio port based on a determined sensitivity
AssigneeBlackBerry Limited
InventorsRobert William Lowles, Christian Lorenz
Life of this patent
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Abstract
A device and method for adjusting an output to an audio port based on a determined sensitivity is provided. The device comprises a processor, an audio port, and an electrical measurement device configured to measure electrical properties of an external device plugged into the audio port over a range of frequencies. Using the electrical measurement device, one or more electrical properties of the external device plugged into the audio port are measured at a plurality of frequencies. A sensitivity of the external device is determined using the one or more electrical properties of the external device measured using the electrical measurement device. An output to the audio port is adjusted based on the sensitivity.
Claims14
A device comprising:
- a processor, an audio port, and an electrical measurement device configured to measure one or more electrical properties of an external device plugged into the audio port over a range of frequencies, the processor configured to:
- measure, using the electrical measurement device, the one or more electrical properties of the external device plugged into the audio port at a plurality of frequencies by:
- playing a first frequency tone at the audio port that is lower than a frequency range of a human hearing system, and measuring a resistance of the external device at first frequency tone;
- playing a second frequency tone at the audio port that is higher than the frequency range of the human hearing system, and measuring an inductance of the external device at second frequency tone;
- and
- playing audio data at the audio port in the frequency range of the human hearing system, and measuring a resonance frequency of the external device in the frequency range of the human hearing system;
- determine a sensitivity of the external device using:
- the resistance, the inductance and the resonance frequency of the external device;
- and a predetermined function that relates the sensitivity to the resistance, the inductance and the resonance frequency of the external device;
- and,
- adjust an output to the audio port based on the sensitivity.
8 more elements
A method comprising:
- at a device comprising:
- processor, an audio port, and an electrical measurement device configured to measure one or more electrical properties of an external device plugged into the audio port over a range of frequencies, measuring, using the electrical measurement device, the one or more electrical properties of the external device plugged into the audio port at a plurality of frequencies by:
- playing a first frequency tone at the audio port that is lower than a frequency range of a human hearing system, and measuring a resistance of the external device at first frequency tone;
- playing a second frequency tone at the audio port that is higher than the frequency range of the human hearing system, and measuring an inductance of the external device at second frequency tone;
- and
- playing audio data at the audio port in the frequency range of the human hearing system, and measuring a resonance frequency of the external device in the frequency range of the human hearing system;
- determining, using the processor, a sensitivity of the external device using:
- the resistance, the inductance and the resonance frequency of the external device, measured using the electrical measurement device;
- and a predetermined function that relates the sensitivity to the resistance, the inductance and the resonance frequency of the external device;
- and,
- adjusting, using the processor, an output to the audio port based on the sensitivity.
8 more elements
A non-transitory computer-readable medium storing a computer program, wherein execution of the computer program is for:
- at a device comprising:
- processor, an audio port, and an electrical measurement device configured to measure electrical properties of an external device plugged into the audio port over a range of frequencies, measuring, using the electrical measurement device, one or more electrical properties of the external device plugged into the audio port at a plurality of frequencies by:
- playing a first frequency tone at the audio port that is lower than a frequency range of a human hearing system, and measuring a resistance of the external device at first frequency tone;
- playing a second frequency tone at the audio port that is higher than the frequency range of the human hearing system, and measuring an inductance of the external device at second frequency tone;
- and
- playing audio data at the audio port in the frequency range of the human hearing system, and measuring a resonance frequency of the external device in the frequency range of the human hearing system;
- determining, using the processor, a sensitivity of the external device using:
- the resistance, the inductance and the resonance frequency of the external device measured using the electrical measurement device;
- and a predetermined function that relates the sensitivity to the resistance, the inductance and the resonance frequency of the external device;
- and,
- adjusting, using the processor, an output to the audio port based on the sensitivity.
8 more elements
Dependencies are inferred from the claim text.