Headset microphone type detect

摘要

Embodiments of the invention include methods, apparatus, systems and means for determining a type of microphone button of a headset plugged into a device jack are described. In some embodiments, a type of microphone button or headset is determined from a plurality of button or headset types based on whether or not a headset plug is detected in a headset jack of a device and whether or not a signal received at a first contact of the headset jack includes overcurrent or an undercurrent. In some embodiments, the behavior of the device may be controlled based on the type of microphone button or headset determined. For example, a predetermined circuit, a predetermined algorithm, or a predetermined process may be selected to signal process the audio signal of the microphone, based on the type of microphone button or headset. Other embodiments are also described and claimed.

主权项

1. A machine implemented method of detecting a type of microphone button comprising:
determining whether or not a headset plug is inserted into a headset jack of a device; detecting that a first signal received at a first contact of the headset jack comprises a normal current, based on detecting that a voltage of the first signal is between a lower voltage threshold and an upper voltage threshold; determining that a headset microphone button is released based on detecting that the first signal comprises the normal current; detecting that the first signal comprises an overcurrent or an undercurrent; determining a type of microphone button from a plurality of button types based on (a) having determined that the first signal comprises the overcurrent or the undercurrent, and (b) having determined that the headset plug is inserted into the headset jack; and controlling a behavior of the device based on the type of microphone button determined, wherein determining whether or not a headset plug is inserted comprises: using a second signal received at a second contact of the headset jack, the second signal being different than the first signal and the second contact being different than the first contact.