LOW AVERAGE VELOCITY PEDESTRIAL MOTION IDENTIFICATION
First Claim
1. A method of identifying a motion state of a mobile device using acceleration signals from one or more accelerometers, comprising:
- detecting any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals;
determining a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps; and
declaring a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps.
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Abstract
Systems and methods for identifying a motion state of a mobile device are disclosed. In one embodiment, identifying a motion state of a mobile device using acceleration signals from one or more accelerometers comprises: detecting any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals; determining a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps; and declaring a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps.
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Citations
52 Claims
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1. A method of identifying a motion state of a mobile device using acceleration signals from one or more accelerometers, comprising:
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detecting any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals; determining a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps; and declaring a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for identifying a motion state of a mobile device using acceleration signals from one or more accelerometers, comprising:
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a step detector configured to detect any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals; and a processor configured to determine a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps, and to declare a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for identifying a motion state of a mobile device using acceleration signals from one or more accelerometers, comprising:
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means for detecting any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals; means for determining a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps; and means for declaring a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A computer-readable medium comprising code, which, when executed by a processor, causes the processor to perform operations for identifying a motion state of a mobile device using acceleration signals from one or more accelerometers, the computer-readable medium comprising:
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code for detecting any pedestrial steps associated with a user of the mobile device during an observation period based on the acceleration signals; code for determining a maximum number of consecutive pedestrial steps taken during the observation period from the detected pedestrial steps; and code for declaring a high average velocity motion state or a low average velocity motion state for the observation period based on the determined maximum number of consecutive pedestrial steps. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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Specification