PERSONAL EMERGENCY RESPONSE (PER) SYSTEM
First Claim
1. A method of operating a base unit in a building indoor location determination system, comprising:
- communicating with a wearable tag through the base unit;
estimating a location of the wearable tag based on times of arrival of signals; and
determining if a fall has occurred and requesting help through the base unit.
4 Assignments
0 Petitions
Accused Products
Abstract
A personal emergency system includes a motion sensor wearable by a human being to sense motion of the human being; a processor; wireless communications circuitry; computer code to match the acceleration signature with at least one of a plurality of stored acceleration signatures, wherein each stored acceleration signatures corresponds with one or more types of motion; and computer code to identify the type of motion of the object based on the matching of the acceleration signature. An optional positioning system can be included where the location of the user is determined based on times of arrival of signals.
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Citations
21 Claims
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1. A method of operating a base unit in a building indoor location determination system, comprising:
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communicating with a wearable tag through the base unit; estimating a location of the wearable tag based on times of arrival of signals; and determining if a fall has occurred and requesting help through the base unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A personal emergency system, comprising:
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a motion sensor wearable by a human being to sense motion of the human being; a processor; wireless communications circuitry; computer code to match the acceleration signature with at least one of a plurality of stored acceleration signatures, wherein each stored acceleration signatures corresponds with one or more types of motion; and computer code to identify the type of motion of the object based on the matching of the acceleration signature. - View Dependent Claims (18, 19, 20, 21)
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Specification