Method and system for activating a touchless control
First Claim
1. A non-scanning ultrasonic system for touchless control comprising:
- an ultrasonic touchless sensing unit, wherein said ultrasonic touchless sensing unit detects at least one activation cue from a finger in a three-dimensional ultrasonic touchless sensing space; and
a controller communicatively coupled to said sensing unit, wherein said controller activates and adjusts a touchless control according to the finger'"'"'s location and acceleration in one of a plurality of elliptic banded boundary regions of the three-dimensional ultrasonic touchless sensing space in response to said activation cue;
where the ultrasonic touchless sensing unit;
acquires the touchless control responsive to detecting a first pause or first accelerated finger movement in a first inner banded elliptical boundary region of the three-dimensional ultrasonic touchless sensing space, andreleases the touchless control responsive to detecting a second pause or second accelerated finger movement in a second outer banded elliptical boundary region of the three-dimensional ultrasonic touchless sensing space.
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Accused Products
Abstract
A system (100) and method (160) for activating a touchless control is provided. The method can include detecting (162) a movement of a finger in a touchless sensing field, identifying (164) an activation cue in response to the finger movement, and activating (166) a touchless control of an object in response the activation cue. The method can include focusing the touchless sensing field (210) to produce a touchless projection space (220). An activation cue can be a positioning of a finger (302) within a bounded region (304) of the touchless projection space for a pre-determined amount of time. In one arrangement, cursor (124) navigation and control can be provided in accordance with touchless finger movements.
111 Citations
20 Claims
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1. A non-scanning ultrasonic system for touchless control comprising:
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an ultrasonic touchless sensing unit, wherein said ultrasonic touchless sensing unit detects at least one activation cue from a finger in a three-dimensional ultrasonic touchless sensing space; and a controller communicatively coupled to said sensing unit, wherein said controller activates and adjusts a touchless control according to the finger'"'"'s location and acceleration in one of a plurality of elliptic banded boundary regions of the three-dimensional ultrasonic touchless sensing space in response to said activation cue; where the ultrasonic touchless sensing unit; acquires the touchless control responsive to detecting a first pause or first accelerated finger movement in a first inner banded elliptical boundary region of the three-dimensional ultrasonic touchless sensing space, and releases the touchless control responsive to detecting a second pause or second accelerated finger movement in a second outer banded elliptical boundary region of the three-dimensional ultrasonic touchless sensing space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A non-scanning method for touchless control comprising the steps of:
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detecting a finger in a three-dimensional ultrasonic touchless sensing space having a plurality of inner and outer banded elliptical boundary regions; identifying a first pause in a first inner banded elliptical boundary region of the three-dimensional ultrasonic touchless sensing space as an activation cue to acquire touchless control; identifying a second pause in a second outer banded elliptical boundary region of the ultrasonic three-dimensional touchless sensing space as a second activation cue to release the touchless control; and activating or deactivating the touchless control of an object in response to the activation cue, where a banded elliptical boundary region is associated with a unique mapping of the finger'"'"'s acceleration to a dynamic range of the touchless control in that banded elliptical boundary region. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 18, 19, 20)
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17. A method for ultrasonic navigation control, the method comprising the steps of:
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generating a three-dimensional ultrasonic touchless sensing space having a plurality of elliptic banded boundary regions; enabling a navigation control when a finger is within a first inner banded elliptical boundary region of the three-dimensional ultrasonic touchless space; controlling an object in accordance with a movement of at least one finger, when said finger is within a banded elliptical boundary region; compressing or expanding the control of the object according to the finger'"'"'s acceleration in a banded boundary region; disabling said navigation control when said finger is outside a second outer banded boundary region of said three-dimensional ultrasonic touchless space; and re-enabling said navigation control when said finger returns to a region within said first inner banded elliptical boundary, for controlling said object in accordance with said movement when said finger is within said touchless projection space; wherein said object remains at a position where navigation control is disabled and resumes movement when said finger returns to said first elliptical boundary region.
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Specification