Capacitive gesture detection system and methods thereof
First Claim
1. A method for detecting and controlling propagated electromagnetic radiation on a hand-held device using environmental capacitive sensing, the steps comprising:
- measuring a capacitance of an object proximate to the hand-held device using a plurality of capacitive sensors;
receiving data from the plurality of capacitive sensors;
determining at least one of;
a dielectric constant of the object based on the measured capacitance;
a material of the object based on the dielectric constant of the object based on measured capacitance; and
a spatial profile of the object based upon an electrostatic charge distribution represented in the received data;
calculating the imposed impedance produced from the proximity and material of the object;
compensating the propagated electromagnetic radiation based on the imposed impedance;
altering the transmitted electromagnetic power distribution using a phased antenna array disposed in the hand-held device; and
distributing transmitted electromagnetic power distribution such that the electromagnetic radiation is directed substantially away from the object.
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Accused Products
Abstract
Apparatus and methods are disclosed related to managing characteristics of a mobile device based upon capacitive detection of materials proximate the mobile device, a capacitive gesture system that can allow the same gestures be used in arbitrary locations within range of a mobile device. One such method includes receiving a first capacitive sensor measurement with a first capacitive sensor of the mobile device. The method further includes determining a value indicative of a material adjacent to the mobile device based on a correspondence between the first capacitive sensor measurement and stored values corresponding to different materials. The method further includes sending instructions to adjust a characteristic of the mobile device based on the determined value indicative of the material adjacent to the mobile device. In certain examples, gesture sensing can be performed using capacitive measurements from the capacitive sensors.
69 Citations
17 Claims
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1. A method for detecting and controlling propagated electromagnetic radiation on a hand-held device using environmental capacitive sensing, the steps comprising:
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measuring a capacitance of an object proximate to the hand-held device using a plurality of capacitive sensors; receiving data from the plurality of capacitive sensors; determining at least one of;
a dielectric constant of the object based on the measured capacitance;
a material of the object based on the dielectric constant of the object based on measured capacitance; and
a spatial profile of the object based upon an electrostatic charge distribution represented in the received data;calculating the imposed impedance produced from the proximity and material of the object; compensating the propagated electromagnetic radiation based on the imposed impedance; altering the transmitted electromagnetic power distribution using a phased antenna array disposed in the hand-held device; and distributing transmitted electromagnetic power distribution such that the electromagnetic radiation is directed substantially away from the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory computer-readable medium comprising code that, when executed by a processor, causes an apparatus to:
- receive capacitance measurements measured by at least two capacitive sensors of the hand-held device, including;
(1) a left capacitive sensor configured to provide capacitance measurements related to a first portion of a hand adjacent to the left side of hand-held device and (2) a right capacitive sensor configured to provide capacitance measurements related to a second portion of the hand adjacent to the right side of hand-held device; and
determine a type of grip of the hand on the hand-held device based on the capacitance measurements, wherein the capacitance measurements include a differential capacitance measurement between the left capacitive sensor and the right capacitive sensor, a single-ended capacitance measurement of the left capacitive sensor, and a single-ended capacitance measurement of the right capacitive sensor; and
access a two-dimensional lookup table, wherein accessing the two-dimensional lookup table comprises;
looking up a magnitude of the differential capacitance measurement between the left capacitive sensor and the right capacitive sensor; and
looking up the sum of (1) the single-ended capacitance measurement of the left capacitive sensor, and (2) the single-ended capacitance measurement of the right capacitive sensor, wherein the intersection of the two-indexed look-ups includes information indicating the type of grip, and wherein the type of grip specifies placements of the palm, digits, and thumb on the hand-held device in a particular configuration,wherein;
determining the type of grip of the hand comprises accessing a multi-dimensional lookup table stored on a memory using the capacitance measurements.
- receive capacitance measurements measured by at least two capacitive sensors of the hand-held device, including;
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12. A system for detecting dynamic motion proximate to a hand-held device using environmental capacitive sensing, the system comprising:
- means for measuring a dielectric constant of an object proximate to the hand-held device using a first and second capacitive sensor;
means for receiving data from the first and second capacitive sensors;
means for determining the material of the object based on the dielectric constant;
means for developing a dynamic spatial profile of the object based upon a plurality of electrostatic charge distributions represented in the received data over a predetermine time period;
means for receiving data from one or more accelerometers disposed in the hand-held device;
means for interpreting the dynamic spatial profile as object motion relative to hand-held device in view of data received from one or more accelerometers;
means for altering the transmitted electromagnetic power distribution using a phased antenna array disposed in the hand-held device; andmeans for distributing transmitted electromagnetic power distribution such that the electromagnetic radiation is directed substantially away from the object. - View Dependent Claims (13, 14, 15, 16, 17)
- means for measuring a dielectric constant of an object proximate to the hand-held device using a first and second capacitive sensor;
Specification