Patent ID: 6034742
Filing Date: 2000-03-07
Classification: G09G,H04N

Abstract:
A multi-frequency display system for providing sharpness enhancement, comprising:a sharpness enhancement circuit that is configured to receive a first and a second input video signal, said first input video signal operating at a first frequency, said second input video signal operating at a second frequency;a controller circuit coupled to the sharpness enhancement circuit, that is configured to generate a first sharpness enhancement signal corresponding to the first frequency and a second sharpness enhancement signal corresponding to the second frequency, said sharpness enhancement circuit generating a first control signal in response to said first input video signal and said first enhancement signal, said sharpness enhancement circuit generating a second control signal based on said second input video signal and said second enhancement signal; andan electron gun coupled to the sharpness enhancement circuit, said electron gun being configured to provide a first image having a sharpness level at the first frequency based on said first control signal, and to provide a second image having the sharpness level at the second frequency based on the second control signal.