Patents Assigned to ACP Advanced Circuit Purcuit AG
  • Electronically variable oscillator
    Patent number: 8253504
    Abstract: A variable simulated inductor comprises an integrator connected to receive the voltage across the input to the circuit. The output of the inductor is connected to a control terminal of a transconductor connected across the input of the circuit. The gain of the transconductor is electronically controllable in order to control the inductance of the circuit. An oscillator using a variable simulated inductor and a piezoelectric resonator connected in parallel is also provided.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: August 28, 2012
    Assignee: ACP Advanced Circuit Purcuit AG
    Inventor: Qiuting Huang