Patent ID: 6229359
Filing Date: 2001-05-08
Classification: H03K

Abstract:
A frequency multiplier having an input and an output, said frequency multiplier comprising:said frequency multiplier input for coupling to a frequency source having a period T, said frequency multiplier input splitting into a normal signal and a delay signal;a delay element having an input and an output, said frequency multiplier delay signal coupled to said delay element input, said delay element producing an output which is delayed in time from said delay element input by a value from T/10 to 9T/10;a switching element having at least two inputs and an output, said inputs including a normal input coupled to said multiplier normal signal, and a delayed input coupled to said delay element output, the output of said switching element having a period T;a filter having an input and an output, said filter input coupled to said switching element output, said filter output removing at least 50% of energy at frequency 1/T, and passing remaining said energy to said filter output;said filter output coupled to said multiplier output.