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US 2019/0240449 A1Published application
Grip detection sensor
AssigneeMurata Manufacturing Co., Ltd.
InventorYoshihiko Nishizawa
Life of this patent
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Abstract
A grip detection sensor that includes: a piezoelectric film having a first main surface and a second main surface, either one of the first main surface and the second main surface being disposed at least partly on a periphery of a linearly shaped flexible object, a first electrode on the first main surface, a second electrode on the second main surface, and a spacer configured to maintain a space between the object and the piezoelectric film.
Claims20
A grip detection sensor comprising:
- a piezoelectric film having a first main surface and a second main surface, one of the first main surface and the second main surface being disposed at least partly on a periphery of a linearly shaped flexible object;
- a first electrode on the first main surface;
- a second electrode on the second main surface;
- and
- a spacer configured to maintain a space between the object and the piezoelectric film.
2 more elements
A grip detection sensor comprising:
- a piezoelectric film composed of a polymer having a piezoelectric constant greater than a predetermined threshold, the piezoelectric film comprising a first main surface and a second main surface, one of the first main surface and the second main surface being disposed at least partly on a periphery of a linearly shaped flexible object;
- a first electrode on the first main surface;
- a second electrode on the second main surface;
- and
- a spacer configured to maintain a space between the object and the piezoelectric film.
2 more elements
A grip detection sensor comprising:
- a piezoelectric element disposed at least partly on a periphery of a linearly shaped flexible object;
- a spacer configured to maintain a space between the object and the piezoelectric film;
- and
- a processing unit configured to:
- monitor voltage of an output of the piezoelectric element;
- determine that the voltage has exceeded a predetermined threshold;
- and
- issue a notification to a call system.
5 more elements
Dependencies are inferred from the claim text.