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:
May. 20, 2025
Filed:
Feb. 17, 2023
Omron Corporation, Kyoto, JP;
Akinori Narumiya, Kyoto, JP;
Hideyuki Urata, Kyoto, JP;
OMRON CORPORATION, Kyoto, JP;
Abstract
A seismic sensorcomprises an acceleration acquisition unit, an acceleration waveform generation unit, a frequency sensing unit, and an earthquake determination unit. The acceleration acquisition unitdetects vibration and measures the acceleration of the vibration. The acceleration waveform generation unitgenerates an acceleration waveform that indicates the relation between the elapsed time and the acceleration measured by the acceleration acquisition unit. The frequency sensing unitsenses the frequency of the acceleration waveform generated by the acceleration waveform generation unitusing a zero-crossing method. The earthquake determination unitdetermines whether or not there is an earthquake on the basis of the frequency sensed by the frequency sensing unit