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US 2014/0233741 A1Published application
System and method of detecting a plug-in type based on impedance comparison
AssigneeQUALCOMM Incorporated
InventorBengt Stefan Gustavsson
Life of this patent
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Abstract
A particular method includes determining, at an electronic device having a plug-in port, a plug-in type of an accessory connected to the plug-in port based on a comparison of an alternating current (AC) impedance at the plug-in port to a direct current (DC) impedance at the plug-in port.
Claims31
A method comprising:
- determining, at an electronic device having a plug-in port, a plug-in type of an accessory connected to the plug-in port based on a comparison of an alternating current (AC) impedance at the plug-in port to a direct current (DC) impedance at the plug-in port.
A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to:
- determine maximum audio signal level based on a comparison of an alternating current (AC) impedance at a plug-in port to a direct current (DC) impedance at the plug-in port.
An apparatus comprising:
- a plug-in type detector configured to determine a plug-in type of an accessory connected to a plug-in port based on a comparison of an alternating current (AC) impedance at the plug-in port to a direct current (DC) impedance at the plug-in port.
An apparatus comprising:
- means for comparing an alternating current (AC) impedance at a plug-in port to a direct current (DC) impedance at the plug-in port;
- and
- means for determining a plug-in type of an accessory connected to the plug-in port based on the comparison.
An apparatus comprising:
- a plug-in port;
- a plug-in type detector configured to determine a plug-in type of an accessory connected to the plug-in port based on a comparison of an alternating current (AC) impedance at the plug-in port to a direct current (DC) impedance at the plug-in port;
- and
- an impedance comparator configured to:
- receive an AC impedance value representative of the AC impedance at the plug-in port;
- receive a DC impedance value representative of the DC impedance at the plug-in port;
- compare the AC impedance value to the DC impedance value;
- and
- provide a result of the comparison to the plug-in type detector.
6 more elements
Dependencies are inferred from the claim text.