External user interface for head worn computing
First Claim
Patent Images
1. A method, comprising:
- capturing an image from a writing surface end of a hand-held device;
determining, based at least in part on the image, that the writing surface end of the hand-held device is on a writing surface;
monitoring forces exerted on a writing surface end of the hand-held device over a period of time;
identifying a discrete force event during the period of time based on the monitored forces, the discrete force event including a sudden and substantial increase in force;
causing a graphic user interface element to appear in a display of a head-worn computer in the event that the discrete force event substantially matches a predetermined force signature;
wherein the hand-held device includes an inertial movement unit (IMU) to determine motion of the hand-held device, andwherein the motion is used in coordination with an image of a writing surface to determine a stroke pattern.
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Abstract
Aspects of the present invention relate to external user interfaces used in connection with head worn computers (HWC). Embodiments relate to an external user interface that has a physical form intended to be hand held. The hand held user interface may be in the form similar to that of a writing instrument, such as a pen. In embodiments, the hand held user interface includes technologies relating to writing surface tip pressure monitoring, lens configurations setting a predetermined imaging distance, user interface software mode selection, quick software application launching, and other interface technologies.
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Citations
9 Claims
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1. A method, comprising:
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capturing an image from a writing surface end of a hand-held device; determining, based at least in part on the image, that the writing surface end of the hand-held device is on a writing surface; monitoring forces exerted on a writing surface end of the hand-held device over a period of time; identifying a discrete force event during the period of time based on the monitored forces, the discrete force event including a sudden and substantial increase in force; causing a graphic user interface element to appear in a display of a head-worn computer in the event that the discrete force event substantially matches a predetermined force signature; wherein the hand-held device includes an inertial movement unit (IMU) to determine motion of the hand-held device, and wherein the motion is used in coordination with an image of a writing surface to determine a stroke pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A hand-held user interface device for a head-worn computer, comprising:
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a force monitor adapted to measure forces exerted on a writing surface end of a hand-held device over a period of time; a camera adapted to capture an image from the writing surface end of the hand-held device; and a processor adapted to determine that the writing surface end of the hand-held device is on a writing surface based, at least in part, on the image, the processor further adapted to identify a discrete force event during the period of time based on the measured forces, the discrete force event including a sudden and substantial increase in force, wherein the processor is adapted to communicate with the head-worn computer to cause a graphical user interface element to appear in a display of the head-worn computer in the event the discrete force event exceeds a predetermined threshold; and wherein the hand-held device includes an inertial movement unit (IMU) to determine motion of the hand-held device, and wherein the motion is used in coordination with an image of a writing surface to determine a stroke pattern.
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Specification