Apparatus and method for correcting keyston distortion
AssigneeLC Electronics Inc.
InventorDong Il Han
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Abstract
An apparatus and a method for correcting keystone distortions in a display system are disclosed. A horizontal size generator first receives N horizontal sync signals of an input image and generates N corresponding horizontal output sizes. Each of the output sizes is generated at each sync signal based on a horizontal input size, a vertical size, and a desired keystone factor or each of horizontal keystone offsets of the input image. A format converter then receives said input image and generates an output image. Each line of the output image now has the corresponding horizontal output size.
Claims20
An apparatus for correcting keystone distortions in a display system comprising:
- a horizontal size generator that receives N horizontal sync signals of an input image and generates N corresponding horizontal output sizes, each of said output sizes being generated at each of said sync signals based on a horizontal input size, a vertical size, and a desired keystone factor of said input image;
- and
- a format converter that receives said input image and generates an output image, each line of said output image now having said corresponding horizontal output size, where N represents a total number of lines of said output image.
An apparatus for correcting keystone distortions in a display system comprising:
- a horizontal size generator that receives N horizontal sync signals of an input image and generates N corresponding horizontal output sizes, each of said output sizes being generated at each of said sync signals based on a horizontal input size and each of horizontal keystone offsets of said input image;
- and
- a format converter that receives said input image and generates an output image, each line of said output image now having said corresponding horizontal output size, where N represents a total number of lines of said output image.
A method for correcting keystone distortions in a display system comprising:
- receiving horizontal sync signals of an input image;
- generating corresponding horizontal output sizes, each of said output sizes being generated at each of sync signals based on a horizontal input size, a vertical size, and a desired keystone factor of said input image;
- and
- receiving said input image and generating an output image by a format converter, each line of said output image now having said corresponding horizontal output size.
A method for correcting keystone distortions in a display system comprising:
- receiving horizontal sync signals of an input image;
- generating corresponding horizontal output sizes, each of said horizontal output sizes being generated at each of sync signals based on a horizontal input size and each of horizontal keystone offsets of an input image;
- and
- receiving said input image and generating an output image by a format converter, each line of said output image now having said corresponding horizontal output size.
Dependencies are inferred from the claim text.