Seiko Epson Corporation

Saneyuki Imamura

Akio Tsutsumi

Hisahiro Ito

A circuit unit includes a first terminal functioning as a power supply terminal or a voltage input terminal, to which a first voltage is applied, a second terminal to which a second voltage is applied, an oscillation circuit oscillating a vibrator, a first switch electrically coupling or decoupling the first terminal and the oscillation circuit, a second switch electrically coupling or decoupling the second terminal and the oscillation circuit, and a selection circuit controlling the first switch and the second switch based on the first voltage and supplying one of the first voltage and the second voltage as a power supply voltage to the oscillation circuit.

Growing community of inventors

Suwa-shi, Nagano, Japan

Saneyuki Imamura