Electromagnetic interference prevention apparatus for flat panel display
AssigneeLG Electronics Inc.
InventorsSang Kyu Hwangbo, Joon Young Kim
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Abstract
An electromagnetic interference (EMI) prevention apparatus for a flat panel display which is capable of modulating the frequency of an input clock signal using a spread spectrum clocking method to increase the frequency of the clock signal and reduce the amplitude thereof so as to reduce EMI by a clock signal generated from a format converter of the flat panel display. The amount of electromagnetic energy radiated from a signal source of the flat panel display can be reduced to eradicate the root of an EMI problem, thus excluding the use of a conventional shielding plate or device.
Claims11
An electromagnetic interference prevention apparatus for a flat panel display comprising:
- clock generation means for generating a clock signal;
- spread spectrum clocking means for modulating the clock signal generated by said clock generation means;
- and
- data processing means for synchronizing the clock signal modulated by said spread spectrum clocking means with an input clock signal at a predetermined frequency and outputting input data as a signal of the predetermined frequency.
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 receiving the reference clock signal generated by said clock generation means and modulating a frequency of the received reference clock signal according to a modulation profile of a predetermined frequency;
- and
- data processing means for receiving an output clock signal from said spread spectrum clocking means and performing a predetermined data, process in response to the received clock signal.
An electromagnetic interference prevention apparatus for a flat panel display comprising:
- clock generation means for generating a clock signal;
- spread spectrum clocking means for modulating the clock signal generated by said clock generation means;
- and
- data processing means for receiving the clock signal modulated by said spread spectrum clocking means and performing a predetermined data process in response to the received clock signal.
Dependencies are inferred from the claim text.