Michael H. Perrott

Digitally-synthesized loop filter circuit particularly useful for a phase locked loop

Feedback system incorporating slow digital switching for glitch-free state changes

Offset correction and slicing level adjustment for amplifier circuits

Method and apparatus for acquiring a frequency without a reference clock

Apparatus and method for decimating a digital input signal

Digital phase detector circuit and method therefor

Method and apparatus for switching between input clocks in a phase-locked loop

Auto-detection between referenceless and reference clock mode of operation

Digitally-synthesized loop filter method and circuit particularly useful for a phase locked loop

Method and apparatus for bit error rate detection