Patent ID: 7057609

Claim:
An electromagnetic interference prevention apparatus for a flat panel display comprising: clock generation means for generating a reference clock signal; spread spectrum clocking means for modulating the reference clock signal generated by said clock generation means such that the reference clock signal is frequency modulated between a nominal frequency (fnom) of the reference clock signal and a down-spreading frequency (1-δ)fnom, where δ represents a spreading magnitude as a percentage of the nominal frequency (fnom), a frequency of said clock signal generated by said clock generation means being modulated according to a modulation profile to reduce an amplitude thereof, said modulation profile having a predetermined frequency; and data processing means for synchronizing the clock signal modulated by said spread spectrum clocking means with an input clock signal at the predetermined frequency and outputting input data as a signal of the predetermined frequency, wherein said data processing means is a format converter being adapted to receive the modulated clock signal from said spread spectrum clocking means as a reference clock signal for a phase lock loop therein and output a modified clock signal synchronized with input data.