Title:
Electronic equipment and impact detection method
Document Type and Number:
Japanese Patent JP6308788
Kind Code:
B2
Abstract:
In an electronic apparatus equipped with a mechanism for generating a sound and an oscillation, it is possible to detect an imparted shock with high sensitivity. The electronic apparatus includes: an oscillation unit; a piezoelectric element configured to impart an oscillation due to deformation in correspondence with an applied voltage to the oscillation unit, generating a voltage corresponding to deformation due to a shock imparted to the oscillation unit; an induction element for applying an increased voltage to the piezoelectric element; a first switch performing control as to whether or not to supply an electric current from a power source to the induction element; a second switch for effecting connection or disconnection between the induction element and the piezoelectric element; and a shock detection unit configured to detect a shock imparted to the oscillation unit based on the voltage generated in the piezoelectric element.
Inventors:
Tetsuya Nobe
Kazuo Kato
Keisuke Tsubata
Hiroshi Shimizu
Kazuo Kato
Keisuke Tsubata
Hiroshi Shimizu
Application Number:
JP2014012659A
Publication Date:
April 11, 2018
Filing Date:
January 27, 2014
Export Citation:
Assignee:
Seiko Instruments Inc.
International Classes:
G04G21/00; G04G13/02
Domestic Patent References:
| JP4003500U | ||||
| JP2002350573A | ||||
| JP9322298A | ||||
| JP58102189A |
Foreign References:
| EP1833103A1 |
Attorney, Agent or Firm:
Noriaki Uchino
Toru Tanikawa
Toru Tanikawa