Nokia Corporation

Nokia Technologies Oy

Peng Xie

Lance Williams

Leo Karkkainen

Sean M White

Kantapon Kaewtip

A platform that is configured to be removably placed symmetrically on or about a user's head has at least a first transducer configured to capture vibration of the user's skull or facial movement generated by the user's voice activity and to detect the user's speaking activity. This first transducer converts the vibration or facial movement into a first electrical audio signal. The electrical audio signal from the first transducer is processed by circuitry or embodied software as voiced frames and/or as unvoiced frames, in which the voiced frames and/or the unvoiced frames are defined based at least on the first electrical audio signal. Multiple embodiments follow from this: where the first transducer is a vibration sensor; where voice is captured by an air microphone and filtering adaptation differs for the voiced versus unvoiced frames as defined by the first transducer, and another with at least three air microphones.

Head-mounted sound capture device

An apparatus including an air-conduction transducer and a bone conduction transducer. The air-conduction transducer is configured to convert a first frequency band component of an electrical audio signal into acoustic energy to be delivered to an ear canal of a user. The bone conduction transducer is configured to convert a second, at least partially different, frequency band component of the electrical audio signal into mechanical energy to be delivered to a skull of the user. The apparatus is configured to deliver both forms of the energies to the user at a substantially same time to provide a combined audio delivery result to the user.

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Santa Clara, CA, United States of America

Peng Xie