A phase-locked loop system and method are provided. The system may include an error detector configured to receive a reference signal, and a voltage-controlled oscillator subsystem coupled to the error detector. The voltage-controlled oscillator subsystem is typically configured to produce a primary...http://www.google.fr/patents/US6788154?utm_source=gb-gplus-shareBrevet US6788154 - Phase-locked loop with composite feedback signal formed from phase-shifted variants of output signal
Phase-locked loop with composite feedback signal formed from phase-shifted ...