Patent
Storage medium having step count calculation program stored therein, step count calculation apparatus, and step count calculation system
Keizo Ohta,Kenta Sato +1 more
- 01 Feb 2008
9
TL;DR: In this article, a first step count in accordance with a change in the gravity direction acceleration is calculated and by using a second coefficient which is different from the first coefficient, a second step count is calculated in order to account for changes in the horizontal direction acceleration.
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Abstract: By repeatedly obtaining acceleration data, a gravity direction acceleration acting in a gravity direction of a housing and a horizontal direction acceleration acting in a horizontal direction perpendicular to the gravity direction are calculated. By using a first coefficient, a first step count in accordance with a change in the gravity direction acceleration is calculated and by using a second coefficient which is different from the first coefficient, a second step count in accordance with a change in the horizontal direction acceleration is calculated. Based on a predetermined condition, one of the first step count and the second step count is selected as a user's step count.
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Citations
Patent
Mobile device, step counting method, and gravity direction detecting method
Senoo Yoshinori
- 31 Jul 2012
TL;DR: In this paper, a mobile phone includes a three-axis acceleration sensor to detect accelerations in three directions of X axis, Y axis, and Z axis, which are different from each other.
34
Patent
Portable electronic device
Tanabe Shigeki
- 04 Mar 2011
TL;DR: In this paper, a pedometer with an acceleration-detecting unit is used to count the number of steps based on temporal changes in acceleration detected by the accelerometer and a correcting unit that corrects the count of steps by the counting unit.
18
Patent
Swing compensation in step detection
Sameera Poduri,Disha Ahuja,Victor Kulik,Payam Pakzad,Ravi Palanki +4 more
- 20 Nov 2013
TL;DR: In this paper, the authors used threshold detection, Eigen analysis, hybrid frequency analysis, and/or gyroscope-based analysis to detect whether a swing is taking place.
17
Patent
Systems and methods for control device including a movement detector
Steve Rabin,Keizo Ohta,Kenta Sato +2 more
- 02 Dec 2013
TL;DR: In this paper, an example image processing system and method using a control device including a movement detector are used for animation and gesture inputs corresponding to a gesture made by moving the control device are used.
17
Patent
Method and device capable of realizing accurate step counting in multi-mode multi-part manner
Deng Weiting
- 30 Sep 2015
TL;DR: In this paper, a multi-mode multi-part step counting system is presented, which consists of more than three acceleration sensors, an acceleration synthesis module, a waveform generating module, filtering marking module, waveform area marking module and a step counting module.
4
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