On head detection by capacitive sensing BCT
First Claim
1. A wearable computing device comprising:
- a bone conduction transducer (BCT) comprising a transducer coupled to a BCT frame, wherein the BCT is configured to receive and be driven by an audio signal, wherein the BCT frame couples the BCT to a component of the wearable computing device, wherein the BCT frame is rigid and holds the transducer such that when the transducer is driven by the audio signal, vibration of the transducer is transferred to a wearer when the wearable computing device is worn, and wherein at least a portion of the BCT frame that holds the transducer is conductive so as to capacitively couple the BCT to a wearer when the wearable computing device is worn;
a capacitive sensor controller; and
at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller, wherein the BCT coupled to the conductive portion of the BCT frame detects a level of capacitance between the BCT and a surrounding medium.
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Accused Products
Abstract
The present application describes on-head detection by a capacitive sensing bone conduction transducer (BCT) system and applications thereof. An example apparatus includes a wearable computing device comprising: (1) the BCT comprising a transducer coupled to a BCT frame, wherein (a) the BCT frame couples the BCT to a component of the wearable computing device, (b) at least a portion of the BCT frame is conductive, wherein the conductive portion of the BCT frame is arranged to capacitively couple the BCT to a wearer when the wearable computing device is worn, and (c) the BCT is configured to receive and be driven by an audio signal; (2) a capacitive sensor controller; and (3) at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller.
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Citations
20 Claims
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1. A wearable computing device comprising:
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a bone conduction transducer (BCT) comprising a transducer coupled to a BCT frame, wherein the BCT is configured to receive and be driven by an audio signal, wherein the BCT frame couples the BCT to a component of the wearable computing device, wherein the BCT frame is rigid and holds the transducer such that when the transducer is driven by the audio signal, vibration of the transducer is transferred to a wearer when the wearable computing device is worn, and wherein at least a portion of the BCT frame that holds the transducer is conductive so as to capacitively couple the BCT to a wearer when the wearable computing device is worn; a capacitive sensor controller; and at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller, wherein the BCT coupled to the conductive portion of the BCT frame detects a level of capacitance between the BCT and a surrounding medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method comprising:
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detecting, via a wearable computing device, data indicating a level of capacitance between a bone conduction transducer (BCT) and a surrounding medium, wherein the wearable computing device comprises; (1) the BCT comprising a transducer coupled to a BCT frame, wherein the BCT is configured to receive and be driven by an audio signal, wherein the BCT frame couples the BCT to a component of the wearable computing device, wherein the BCT frame is rigid and holds the transducer such that vibration of the transducer when driven by the audio signal is transferred to a wearer when the wearable computing device is worn, and wherein at least a portion of the BCT frame that holds the transducer is conductive so as to capacitively couple the BCT to a wearer when the wearable computing device is worn; (2) a capacitive sensor controller; and (3) at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller; receiving data indicating the detected level of capacitance between the BCT and the surrounding medium; comparing the received data with a threshold capacitance level; and based on the comparison, providing an indication. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A non-transitory computer readable storage medium having stored therein instructions, that when executed by a wearable computing device, cause the wearable computing device to perform functions comprising:
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detecting data indicating a level of capacitance between a bone conduction transducer (BCT) and a surrounding medium, wherein the wearable computing device comprises; (1) the BCT comprising a transducer coupled to a BCT frame, wherein the BCT is configured to receive and be driven by an audio signal, wherein the BCT frame couples the BCT to a component of the wearable computing device, wherein the BCT frame is rigid and holds the transducer such that vibration of the transducer when driven by the audio signal is transferred to a wearer when the wearable computing device is worn, and wherein at least a portion of the BCT frame that holds the transducer is conductive so as to capacitively couple the BCT to a wearer when the wearable computing device is worn; (2) a capacitive sensor controller; and (3) at least one connective component that further couples the conductive portion of the BCT frame to the capacitive sensor controller; receiving data indicating the detected level of capacitance between the BCT and the surrounding medium; comparing the received data with a threshold capacitance level; and based on the comparison, providing an indication. - View Dependent Claims (19, 20)
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Specification