Patent ID: 8018293

Claim:
An apparatus, comprising: a resonator having a first terminal and a second terminal; a first p-type transistor having a first source, a first gate, and a first drain, the first gate electrically connected to the second terminal, and the first drain electrically connected to the first terminal through a first switch; a second p-type transistor having a second source, a second gate, and a second drain, the second source electrically connected to the first source, the second gate electrically connected to the first terminal, and the second drain electrically connected to the second terminal through a second switch; a first n-type transistor having a third source, a third gate, and a third drain, the third gate electrically connected to the second terminal, the third drain electrically connected to the first terminal through a first connection that does not include a switch; and a second n-type transistor having a fourth source, a fourth gate, and a fourth drain, the fourth gate electrically connected to the first terminal, the fourth drain electrically connected to the second terminal through a second connection that does not include a switch, the fourth source electrically connected to the third source, and the third source and the fourth source electrically connected to ground through an inductor.