System and method for processing a television picture-out-picture
First Claim
1. A system for processing a television picture-out-picture, comprising:
- a line buffer for receiving partial pixels of a first picture and partial pixels of a second picture for output;
an image processing engine connected to the line buffer for performing an image processing on the partial pixels output by the line buffer to produce processed pixels corresponding to the partial pixels of the first or second picture;
a scaling engine connected to the image processing engine for performing a scaling operation on the processed pixels to produce scaled pixels; and
a timing generator connected to the image processing engine and the scaling engine for producing a timing signal for the image processing engine and the scaling engine and producing enable signals respectively for the first picture and the second picture;
wherein the image processing engine and the scaling engine process the partial pixels of the first picture or the partial pixels of the second picture in multiplexing.
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Accused Products
Abstract
A system for processing a television (TV) picture-out-picture (POP) includes a line buffer, a first multiplexer, an image processing engine, a scaling engine and a timing generator. The line buffer receives partial pixels of a first picture and partial pixels of a second picture. The first multiplexer selects the partial pixels of the first and second picture as an output. The image processing engine performs an image processing on the partial pixels output by the first multiplexer to thereby produce processed pixels. The scaling engine performs a scaling operation on the processed pixels to thereby produce scaled pixels. The timing generator produces a timing signal for the image processing engine and the scaling engine and produces enable signals respectively for the first picture and the second picture. The image processing engine and the scaling engine process the partial pixels of the first or second picture in multiplexing.
14 Citations
8 Claims
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1. A system for processing a television picture-out-picture, comprising:
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a line buffer for receiving partial pixels of a first picture and partial pixels of a second picture for output; an image processing engine connected to the line buffer for performing an image processing on the partial pixels output by the line buffer to produce processed pixels corresponding to the partial pixels of the first or second picture; a scaling engine connected to the image processing engine for performing a scaling operation on the processed pixels to produce scaled pixels; and a timing generator connected to the image processing engine and the scaling engine for producing a timing signal for the image processing engine and the scaling engine and producing enable signals respectively for the first picture and the second picture; wherein the image processing engine and the scaling engine process the partial pixels of the first picture or the partial pixels of the second picture in multiplexing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for processing a television picture-out-picture, comprising the steps of:
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(A) outputting an n-th line of data of a first picture at a first time; (B) outputting an n-th line of data of a second picture at a second time; (C) performing scaling operations on the n-th lines of data of the first and the second pictures respectively to thereby produce scaled pixels corresponding to the n-th line of data of the first picture and scaled pixels corresponding to the n-th line of data of the second picture; and (D) synthesizing the scaled pixels of the first picture and the scaled pixels of the second picture to thereby produce a combined frame with the first and the second pictures.
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Specification