Apparatus and method for counting pixels in print data

Details Apparatus and method for counting pixels in print data Apparatus and method for counting pixels in print data

2005-05-24

2005-05-24

Coles, Edward (Department: 2622)

Facsimile and static presentation processing

Static presentation processing

C358S426090, C382S194000

Reexamination Certificate

active

06897968

ABSTRACT:
An independent hardware pixel counter counts bits of print data in regions of interest. The independent pixel counter can be an application specific integrated circuit (ASIC), and is separate from a control processor. The independent hardware pixel counter selectively monitors a data bus carrying image data to or from a memory. Once the pixels of the image data have been counted, the count data can be sent to the control processor in order to implement a print strategy. The pixel counter counts the print data at a point when image data is being sent to the memory, since at that point the image data is both uncompressed and in a raster format, and thus can be easily analyzed. Additionally, because the image data is stored in the memory until enough print data has accumulated for printing, the processor is provided with sufficient time to gather and use print information before the counted image data is printed.

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