Adjustable video display window
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorMichael Kahn
Life of this patent
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Abstract
A method of generating an adjustable video display window from an on screen display (OSD) bitmap is provided. The adjustable video display window masks undesirable video artifacts from a video display. The method includes generating an image pattern, the image pattern being produced by a video display processor of the video display. Parameters of the video display processor are adjusted to vary the dimension of the generated image pattern to redefine the periphery of an active region of the video display so that users of the video display are not able to view undesirable artifacts.
Claims19
A method of providing an adjustable window for masking undesirable video artifacts of a displayed image that is produced from a video signal by a system having an on screen display (OSD) function, the method comprising the steps of:
- generating an overlay video signal representing at least one masking panel, the video signal being produced by the OSD function;
- using the OSD function, changing the overlay video signal to vary at least one dimension of the at least one masking panel, responsive to a control signal;
- and
- mixing the overlay video signal representing the masking panel with the video signal representing the displayed image to produce a composite display in which the at least one masking panel hides the artifact in the displayed image.
Apparatus which provides an adjustable window for masking undesirable video artifacts of a displayed image that is produced from a video signal by a system having an on screen display (OSD) function, the apparatus comprising:
- means for generating an overlay video signal representing at least one masking panel, the video signal being produced by the OSD function;
- means for using the OSD function, changing the overlay video signal to vary at least one dimension of the at least one masking panel, responsive to a control signal;
- and
- means for mixing the overlay video signal representing the masking panel with the video signal representing the displayed image to produce a composite display in which the at least one masking panel hides the artifact in the displayed image.
A computer readable carrier including computer program instructions that cause a computer to implement a method of providing an adjustable window for masking undesirable video artifacts of a displayed image that is produced from a video signal by a system having an on screen display (OSD) function for overlaying text and graphics onto the displayed image, the method comprising the steps of:
- generating an overlay video signal representing at least one masking panel, the video signal being produced by the OSD function;
- using the OSD function, changing the overlay video signal to vary at least one dimension of the at least one masking panel, responsive to a control signal;
- and
- mixing the overlay video signal representing the masking panel with the video signal representing the displayed image to produce a composite display in which the at least one masking panel hides the artifact in the displayed image.
Dependencies are inferred from the claim text.