Method and device for displaying at least two images within one combined picture
First Claim
1. A method for displaying a first image and a second image which at least partially overlap within one combined picture, said method comprising:
- receiving a first video signal to display the first image within a first active region of the combined picture, the first video signal containing the video information for adjacent pixels of the first image in temporally sequential form;
receiving a second video signal to display the second image within a second active area of the combined picture, the second video signal containing the video information for adjacent pixels of the first image in temporally sequential form;
generating a third video signal from the first and second video signals to display a third image in an overlap region of the first and second active regions; and
for each pixel location within the combined picture, generating an output signal by assigning video information associated with the pixel location from the first video signal to the output signal whenever the pixel location within the combined picture lies within the first active region, and assigning video information from the second video signal to the output signal whenever the pixel location within the combined picture lies within the second active region, and wherein the video information from the third video signal is assigned to the output signal whenever the pixel location of the combined picture lies within the overlap region.
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Accused Products
Abstract
A device for processing a first video signal and a second video signal that contain image data which overlap within a combined picture includes a processing element and a controller. The processing element receives the first video signal containing first image pixel data and receives the second video signal containing second image pixel data, and processes the first video signal and the second video signal to generate a third video signal indicative of an overlap region of images formed by the first and second video signals. The controller receives the first video signal, the second video signal, and the third video signal, and in response to a plurality of control signals selectively outputs one of the first, second and third video signals, wherein the third video signal is a weighted sum of the first and second video signals, wherein the control signals comprise a first control signal indicative of the location and size of a first image associated with the first video signal within a picture and a second control signal indicative of the location and size of a second image associated with the second video signal within the picture.
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Citations
14 Claims
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1. A method for displaying a first image and a second image which at least partially overlap within one combined picture, said method comprising:
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receiving a first video signal to display the first image within a first active region of the combined picture, the first video signal containing the video information for adjacent pixels of the first image in temporally sequential form; receiving a second video signal to display the second image within a second active area of the combined picture, the second video signal containing the video information for adjacent pixels of the first image in temporally sequential form; generating a third video signal from the first and second video signals to display a third image in an overlap region of the first and second active regions; and for each pixel location within the combined picture, generating an output signal by assigning video information associated with the pixel location from the first video signal to the output signal whenever the pixel location within the combined picture lies within the first active region, and assigning video information from the second video signal to the output signal whenever the pixel location within the combined picture lies within the second active region, and wherein the video information from the third video signal is assigned to the output signal whenever the pixel location of the combined picture lies within the overlap region. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. Device for displaying a first image and a second image which at least partially overlap within a combined picture said device comprising:
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a first input to feed a first video signal to display the first image within a first active region of the combined picture, wherein the first video signal contains video information for adjacent pixels of the first image in temporally sequential form; a second input to feed a second video signal to display the second image within a second active region of the combined picture, wherein the second video signal contains video information for adjacent pixels of the second image in temporally sequential form; a logic circuit that is responsive to the first and second video signals to generate a third video signal from the first and second video signals to display a third image within an overlap region of the first and second active regions; a multiplexing device that receives the first, second, and third video signals and generates an output signal to display the combined picture, wherein the multiplexing device assigns the video information from the first video signal to the output signal whenever the associated pixel of the combined picture lies within the first active region, wherein the multiplexing device assigns the video information from the second video signal to the output signal whenever the associated pixel of the combined picture lies within the second active region, and wherein the multiplexing device assigns the video information from the third video signal to the output signal whenever the associated pixel of the combined picture lies within an overlap region of the first and second active regions. - View Dependent Claims (9, 10, 11)
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12. A device for processing a first video signal and a second video signal that contain image data which overlap within a combined picture, said device comprising:
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a processing element that receives the first video signal containing first image pixel data and receives the second video signal containing second image pixel data, and processes the first video signal and the second video signal to generate a third video signal indicative of an overlap region of images formed by the first and second video signals; a controller that receives the first video signal, the second video signal, and the third video signal, and in response to a plurality of control signals selectively outputs one of the first, second and third video signals, wherein the third video signal is a weighted sum of the first and second video signals, wherein the control signals comprise a first control signal indicative of the location and size of a first image associated with the first video signal within a picture and a second control signal indicative of the location and size of a second image associated with the second video signal within the picture; a first multiplier that multiplies the first video signal by a first scaling factor to provide a first weighted video signal; a second multiplier that multiplies the second video signal by a second scaling factor to provide a second weighted video signal; and a summer that sums the first and second weighted video signal to provide the third video signal. - View Dependent Claims (13, 14)
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Specification