The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2008
Filed:
Sep. 28, 2005
Woong Kwon, Seongnam-si, KR;
Kyung-shik Roh, Seongnam-si, KR;
Woo-sup Han, Yongin-si, KR;
Young-bo Shim, Seoul, KR;
Sang-min Suh, Seoul, KR;
Woong Kwon, Seongnam-si, KR;
Kyung-shik Roh, Seongnam-si, KR;
Woo-sup Han, Yongin-si, KR;
Young-bo Shim, Seoul, KR;
Sang-min Suh, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A method and apparatus for detecting a free fall of an electronic device. The method includes: sensing a falling acceleration of the electronic device using an acceleration sensor; determining whether the sensed falling acceleration is less than a predetermined threshold; when the sensed falling acceleration is less than the predetermined threshold, determining whether the falling acceleration is a statistical constant, which has a statistical significance, and is maintained for a predetermined time; and when the falling acceleration is a statistical constant and maintained for a predetermined time, determining that the electronic device falls freely. Accordingly, it is possible to exactly detect a free fall of an electronic device, irrespective of an error of the acceleration of gravity generated when a falling acceleration of the electronic device is measured, due to ambient conditions, e.g., a temperature change and a rotation acceleration generated when the electronic device rotates.