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A means for providing two user push-buttons connected to a differential microphone headset without requiring additional connections at the headset jack

IP.com Disclosure Number: IPCOM000126174D
Publication Date: 2005-Jul-22
Document File: 2 page(s) / 153K

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention addresses the problem of having to add an additional push-button to a headset without having to add an additional connector to the jack.

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   A means for providing two user push-buttons connected to a differential microphone headset without requiring additional connections at the headset jack

Disclosed Anonymously

    This invention addresses the problem of having to add an additional push-button to a headset without having to add an additional connector to the jack.

    The first push-button, attached in parallel to the microphone is the traditional answer/hang-up button. This invention, the second push-button, is the novel configuration. By using the microphone temporarily in a single-ended configuration while the second push-button is depressed, the headset does not require an additional connection. Sensing this closed condition is achieved by evaluating the DC values of MicP and MicN, in similar fashion to the answer/hang-up button in the traditional microphone.

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