Display processor for a wireless device
First Claim
1. A display processor for a wireless device, comprising. an interface unit operable to receive input image data and provide output image data for presentation on an electronic screen;
- and at least one processing unit operable to perform at least one post-processing function on the input image data to obtain the output image data, and wherein the display processor is operable to provide an interface between at least one processor providing the input image data for the electronic screen and a frame buffer used to store the output image data for the electronic screen.
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Abstract
A display processor includes an interface unit, an instruction processor, a synchronization unit, at least one processing unit, and a device buffer. The interface unit receives input image data (e.g., from a main memory) and provides output image data for a frame buffer. The instruction processor receives instructions (e.g., in a script or list) and directs the operation of the processing unit(s). The synchronization unit determines the location of a read pointer for the frame buffer and controls the writing of output image data to the frame buffer to avoid causing visual artifacts on an LCD screen. The processing unit(s) may perform various post-processing functions such as region flip, region rotation, color conversion between two video formats (e.g., from YCrCb to RGB), up/down image size rescaling, alpha-blending, transparency, text overlay, and so on.
219 Citations
33 Claims
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1. A display processor for a wireless device, comprising.
an interface unit operable to receive input image data and provide output image data for presentation on an electronic screen; - and
at least one processing unit operable to perform at least one post-processing function on the input image data to obtain the output image data, and wherein the display processor is operable to provide an interface between at least one processor providing the input image data for the electronic screen and a frame buffer used to store the output image data for the electronic screen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. An integrated circuit for a wireless device, comprising:
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an interface unit operable to receive input image data and provide output image data for presentation on an electronic screen; and
at least one processing unit operable to perform at least one post-processing function on the input image data to obtain the output image data, and wherein the interface unit and the at least one processing unit are operable to provide an interface between at least one processor providing the input image data for the electronic screen and a frame buffer used to store the output image data for the electronic screen. - View Dependent Claims (27, 28, 29, 30)
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31. An apparatus comprising:
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means for receiving input image data for an electronic screen;
means for performing at least one post-processing function on the input image data to obtain output image data; and
means for providing the output image data for presentation on the electronic screen, and wherein means for receiving input image, means for performing at least one post-processing function, and means for providing the output image data provide an interface between at least one processor providing the input image data for the electronic screen and a frame buffer used to store the output image data for the electronic screen. - View Dependent Claims (32, 33)
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Specification