Don and doff sensing using capacitive sensors
First Claim
1. A method comprising:
- receiving, by a head-mountable computing device, data from at least one capacitive sensor indicating a rate of change of capacitance, wherein the at least one capacitive sensor is arranged on the head-mountable computing device so as to detect contact or proximity to an inner surface of a frame of the head-mountable computing device;
making, by the head-mountable computing device, a comparison of the rate of change of capacitance and a threshold rate of change of capacitance;
based on the comparison, determining, by the head-mountable computing device, whether the head-mountable computing device is donned or doffed;
if the head-mountable computing device is donned, causing the head-mountable computing device to operate in a first state;
if the head-mountable computing device is doffed, causing the head-mountable computing device to operate in a second state, wherein the head-mountable computing device consumes less power in the second state than in the first state; and
during operation of the head-mountable computing device in the second state;
(a) detecting, by the head-mountable computing device, input data from the at least one capacitive sensor that corresponds to an input movement on the inner surface; and
(b) in response to receipt of the input data corresponding to the input movement, causing the head-mountable computing device to operate in a third state, wherein the head-mountable computing device consumes less power in the second state than in the third state.
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Accused Products
Abstract
Methods and devices for determining whether a head-mountable computing device is donned or doffed are disclosed. In one embodiment, a method is disclosed that includes receiving from at least one capacitive sensor data indicating a rate of change of capacitance, making a comparison of the rate of change of capacitance to a threshold rate of change of capacitance and, based on the comparison, determining whether the head-mountable computing device is donned or doffed. The method further includes, if the head-mountable computing device is donned, causing the head-mountable computing device to operate in a first state, and if the head-mountable computing device is doffed, causing the head-mountable computing device to operate in a second state, where the head-mountable computing device consumes less power in the second state than in the first state.
100 Citations
19 Claims
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1. A method comprising:
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receiving, by a head-mountable computing device, data from at least one capacitive sensor indicating a rate of change of capacitance, wherein the at least one capacitive sensor is arranged on the head-mountable computing device so as to detect contact or proximity to an inner surface of a frame of the head-mountable computing device; making, by the head-mountable computing device, a comparison of the rate of change of capacitance and a threshold rate of change of capacitance; based on the comparison, determining, by the head-mountable computing device, whether the head-mountable computing device is donned or doffed; if the head-mountable computing device is donned, causing the head-mountable computing device to operate in a first state; if the head-mountable computing device is doffed, causing the head-mountable computing device to operate in a second state, wherein the head-mountable computing device consumes less power in the second state than in the first state; and during operation of the head-mountable computing device in the second state; (a) detecting, by the head-mountable computing device, input data from the at least one capacitive sensor that corresponds to an input movement on the inner surface; and (b) in response to receipt of the input data corresponding to the input movement, causing the head-mountable computing device to operate in a third state, wherein the head-mountable computing device consumes less power in the second state than in the third state. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method comprising:
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receiving, by a computing device, data from at least one capacitive sensor indicating a change of capacitance, wherein the at least one capacitive sensor is arranged on a head-mountable computing device so as to detect contact or proximity to an inner surface of a frame of the head-mountable computing device; making, by the computing device, a comparison of the change of capacitance and a threshold change of capacitance; based on the comparison, determining, by the computing device, whether the head-mountable computing device is donned or doffed; if the head-mountable computing device is donned, causing the head-mountable computing device to operate in a first state; if the head-mountable computing device is doffed, causing the head-mountable computing device to operate in a second state, wherein the head-mountable computing device consumes less power in the second state than in the first state; and during operation of the head-mountable computing device in the second state; (a) receiving, by the computing device, second data from the at least one capacitive sensor, wherein the second data corresponds to an input movement on the inner surface; and (b) in response to receipt of the second data corresponding to the input movement, causing the head-mountable computing device to operate in a third state, wherein the head-mountable computing device consumes less power in the second state than in the third state. - View Dependent Claims (8, 9, 10, 11)
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12. A head-mountable computing device comprising:
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at least one capacitive sensor operable to detect contact or proximity to an inner surface of a frame of the head-mountable computing device; at least one processor; and data storage comprising instructions executable by the at least one processor to; receive from the at least one capacitive sensor data indicating a rate of change of capacitance; make a comparison of the rate of change of capacitance and a threshold rate of change of capacitance; based on the comparison, determine whether the head-mountable computing device is donned or doffed; if the head-mountable computing device is donned, cause the head-mountable computing device to operate in a first state; if the head-mountable computing device is doffed, cause the head-mountable computing device to operate in a second state, wherein the head-mountable computing device consumes less power in the second state than in the first state; and during operation of the head-mountable computing device in the second state; (a) detect input data from the at least one capacitive sensor that corresponds to an input movement on the inner surface; and (b) in response to receipt of the input data corresponding to the input movement, cause the head-mountable computing device to operate in a third state, wherein the head-mountable computing device consumes less power in the second state than in the third state. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification