초록 ▼

A radio receiver with improved accuracy of phase-locked loop is disclosed. In addition to a detector for detecting a detected signal from a received radio signal, the receiver includes a monitor for monitoring an amplitude change of the detected signal to detect timing where the amplitude change occ

A radio receiver with improved accuracy of phase-locked loop is disclosed. In addition to a detector for detecting a detected signal from a received radio signal, the receiver includes a monitor for monitoring an amplitude change of the detected signal to detect timing where the amplitude change occurs over a predetermined range. The phase-locked control of the timing clock signal with respect to the detected signal is performed only when the timing is detected by the monitor.

대표청구항 ▼

1. A radio receiver comprising:a detector for detecting a detected signal from a received radio signal; a monitor for monitoring an amplitude change of the detected signal to detect timing where the amplitude change occurs over a predetermined range; a clock generator for generating a timing clock s

1. A radio receiver comprising:a detector for detecting a detected signal from a received radio signal; a monitor for monitoring an amplitude change of the detected signal to detect timing where the amplitude change occurs over a predetermined range; a clock generator for generating a timing clock signal; and a controller performing a phase-locked control of the timing clock signal with respect to the detected signal only when the timing is detected by the monitor, wherein the controller comprises: a comparator for comparing the detected signal to a reference level to produce a comparison signal; a phase error detector for detecting a phase error between the comparison signal and the timing clock signal; and an error adjuster for adjusting a phase of the timing clock signal so as to reduce the phase error only when the timing is detected by the monitor.