Voice activity detection with capacitive touch sense
First Claim
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1. A head worn device comprising:
- a capacitive sensor disposed at a head worn device configured to provide a capacitive sensor output signal, wherein the capacitive sensor is configured to detect whether the capacitive sensor is in contact with a user skin of a user head;
a voice activity detector sensor disposed at the head worn device arranged to contact a user skin of the user head, the voice activity detector sensor configured to provide a voice activity detector sensor output signal, wherein the voice activity detector sensor is configured to detect vibration of human tissue associated with user speech, and wherein the capacitive sensor is arranged adjacent to the voice activity detector sensor on a same surface of the head worn device such that the voice activity detector sensor is positioned to contact the user skin of the user head whenever the capacitive sensor is in contact with the user skin of the user head; and
a processor configured to receive the capacitive sensor output signal and the voice activity detector sensor output signal, wherein the voice activity detector sensor output signal is processed to determine a voice activity status only if the capacitive sensor output signal indicates that the capacitive sensor is in contact with the user skin of the user head.
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Abstract
A voice activity detection apparatus having a capacitive sensor and a voice activity detector sensor. The voice activity detector sensor detects vibration of human tissue associated with user speech. Utilization of the voice activity detector sensor output is tied to the output of the capacitive sensor, where the capacitive sensor detects whether it is in contact with user skin.
39 Citations
16 Claims
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1. A head worn device comprising:
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a capacitive sensor disposed at a head worn device configured to provide a capacitive sensor output signal, wherein the capacitive sensor is configured to detect whether the capacitive sensor is in contact with a user skin of a user head; a voice activity detector sensor disposed at the head worn device arranged to contact a user skin of the user head, the voice activity detector sensor configured to provide a voice activity detector sensor output signal, wherein the voice activity detector sensor is configured to detect vibration of human tissue associated with user speech, and wherein the capacitive sensor is arranged adjacent to the voice activity detector sensor on a same surface of the head worn device such that the voice activity detector sensor is positioned to contact the user skin of the user head whenever the capacitive sensor is in contact with the user skin of the user head; and a processor configured to receive the capacitive sensor output signal and the voice activity detector sensor output signal, wherein the voice activity detector sensor output signal is processed to determine a voice activity status only if the capacitive sensor output signal indicates that the capacitive sensor is in contact with the user skin of the user head. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A head worn device comprising:
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a first capacitive sensor disposed at a head worn device configured to provide a first capacitive sensor output signal, wherein the first capacitive sensor is configured to detect whether the first capacitive sensor is in contact with a user skin of a user head; a second capacitive sensor disposed at the head worn device configured to provide a second capacitive sensor output signal, wherein the second capacitive sensor is configured to detect whether the second capacitive sensor is in contact with a user skin of a user head; a voice activity detector sensor disposed at the head worn device arranged to contact a user skin of the user head, the voice activity detector sensor configured to provide a voice activity detector sensor output signal, wherein the voice activity detector sensor is configured to detect vibration of human tissue associated with user speech, and wherein the first capacitive sensor and the second capacitive sensor are arranged adjacent to and on opposite sides of the voice activity detector sensor on a same surface of the head worn device such that the voice activity detector sensor is positioned to contact the user skin of the user head whenever both the first capacitive sensor and the second capacitive sensor are in contact with the user skin of the user head; a processor configured to receive the first capacitive sensor output signal, the second capacitive sensor output signal and the voice activity detector sensor output signal, wherein the voice activity detector sensor output signal is processed to determine a voice activity status only if both the first capacitive sensor output signal indicates that the first capacitive sensor is in contact with the user skin of the user head and the second capacitive sensor output signal indicates that the second capacitive sensor is in contact with the user skin of the user head. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A head worn device comprising:
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a skin contact sensing means disposed at a head worn device for determining contact with a user skin of a user head; a tissue vibration sensing means disposed at the head worn device for detecting vibration of human tissue associated with user speech, the tissue vibration sensing means arranged to contact a user skin of the user head, wherein the skin contact sensing means is arranged adjacent to the tissue vibration sensing means on a same surface of the head worn device such that the tissue vibration sensing means is positioned to contact the user skin of the user head whenever the skin contact sensing means is in contact with the user skin of the user head; and a processing means for processing an output of the tissue vibration sensing means to determine a voice activity status only if the skin contact sensing means is in contact with the user skin of the user head. - View Dependent Claims (16)
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Specification