Plantronics, Inc.

John F Gerhardt

Robert M Khamashta

Timothy Paul Johnston

Edward Lester Reuss

Iain McNeill

J Stephen Graham

An apparatus and method are provided for determining the donned or doffed state of a headset. In one example, a headset includes a processor, an acoustic transducer, and a detector operably coupled to the processor, the detector providing an output charge pattern corresponding to a state selected from the group consisting of the headset being donned and doffed. Advantageously, the present disclosure provides for reliably determining a donned or doffed state of a headset for efficiently routing calls, text messages, and/or otherwise being used for notifications and requests in a system.

Donned and doffed headset state detection

The present invention provides an echo reduction apparatus, system, and method that advantageously reduces echo when communicating over packet-switched networks. An echo reduction apparatus, including echo reduction circuit, operably couples a headset or handset device to an audio source that is capable of transmitting a sound signal. The echo reduction circuit receives the sound signal from the audio source and a transmit signal from the headset or handset device and provides an adjusted sound signal to the audio source. Advantageously, a variety of headsets and handsets may be used in accordance with the present invention with reduced caller echo and without the need to purchase new headsets or handsets.

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Los Gatos, CA, United States of America

John F Gerhardt