System for processing graphic patterns
AssigneeKoninklijke Philips Electronics N.V.
InventorLaurent Charles Pasquier
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Abstract
The present invention relates to an integrated circuit and a method of processing graphic patterns comprising pixels. The circuit (CH) is integrated in a video output co-processor. The circuit comprises, on the one hand, a random access memory (RAM) intended to save the patterns and, on the other hand, extraction means (PE) intended to extract pixels as a function of an indication of the number of bits per pixel from the selected pattern and apply them to encoding means (CM). The pixels are then color-characterized by encoding means (CM) for display on a video screen. The circuit avoids the use of an external memory (SDRAM) and thus cluttering of the passband of the video bus.
Claims17
An integrated circuit (CH) for processing sets of data, said sets of data comprising pixels, characterized in that the integrated circuit comprises:
- an only one memory (RAM) suitable for saving at least a set of data comprising a number of pixels having a size varying from one type of set to another,
- means (CNTRL) for controlling pixels, suitable for giving an indication of the type of a set of data,
- means (PE) for extracting pixels, suitable for selecting and reading said set of data, extracting at least a pixel of said set of data at the output of said memory (RAM) as a function of said indication, and dispatching said at least one pixel to encoding means (CM).
A method of processing sets of data, the different sets of data comprising pixels, characterized in that the method comprising the steps of:
- saving in an only one memory (RAM) at least a set of data comprising a number of pixels having a size varying from one type of set to another,
- giving an indication of the type of a set of data,
- selecting and reading said set of data,
- extracting at least a pixel of said set of data at the output of said memory as a function of said indication,
- dispatching said at least one pixel to encoding means (CM).
Dependencies are inferred from the claim text.