AMPLIFYING ORIENTATION CHANGES FOR ENHANCED MOTION DETECTION BY A MOTION SENSOR
Techniques associated with amplifying orientation changes for enhanced motion detection by a motion sensor are described, including structures configured to enhance detection of motion, the structure having an articulator configured to amplify a motion and a pin configured to apply a force on a pivot point on the articulator, a motion sensor coupled to the structure and configured to detect motion of the structure, and circuitry configured to translate data associated with rotational motion of the articulator into a movement of an adjacent surface. In some embodiments, a method includes coupling a motion sensor to a skin surface using an articulator, the articulator configured to rotate in multiple planes, detecting rotational motion of the articulator using the motion sensor, and deriving data associated with movement on the skin surface.
1 . A device, comprising:
a structure configured to enhance detection of movement, the structure comprising an articulator configured to amplify a motion and a pin configured to apply a force on a pivot point on the articulator;
an accelerometer coupled to the structure and configured to detect motion of the structure; and
circuitry configured to translate data associated with rotational motion of the articulator to determine a movement of an adjacent surface.
2 . The device of claim 1 , wherein the force is configured to hold the articulator against the adjacent surface.
3 . The device of claim 1 , wherein the adjacent surface comprises skin and the movement is caused by a blood vessel residing beneath the skin.
4 . The device of claim 1 , wherein the articulator is configured to amplify the motion by translating the motion into a plurality of orientation changes in a plurality of planes.
5 . The device of claim 1 , wherein the circuitry is coupled to the accelerometer using a wire configured to carry an electrical signal.
6 . The device of claim 1 , further comprising a processor configured to distinguish between a plurality of types of motion data.
7 . The device of claim 1 , wherein the accelerometer is coupled to a post configured to extend outward from an edge of the articulator in a direction away from the pivot point.
8 . The device of claim 1 , wherein the articulator comprises a flat surface and a rounded surface, the rounded surface configured to be placed against the adjacent surface.
9 . The device of claim 1 , wherein the articulator is configured to be placed on a wrist such that the force is configured to occlude a blood vessel against a bone tissue.
10 . The device of claim 9 , wherein the articulator is configured to rotate about the pivot point in response to a radial force caused by a pulse running through a blood vessel.
11 . The device of claim 1 , further comprising another motion sensor configured to be placed in a second location on the adjacent surface different from a first location of the accelerometer, the another motion sensor configured to detect motion unrelated to the structure.
12 - 19 . (canceled)