Application specific integrated circuit (ASIC) in the form of a printer processor
First Claim
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1. A processor for a printer, the processor comprising:
- an address, data and control bus;
an expander unit coupled to the bus and configured to decompress a bi-level black layer of a page to be printed;
a decoder unit coupled to the bus and configured to decompress a contone layer of the page to be printed; and
a halftoner/compositor unit which is coupled to the bus, and is configured to halftone the decompressed contone layer to form a bi-level cyan, yellow, magenta, and black (CYMK) layer and then composite the decompressed bi-level black layer over the bi-level CYMK layer to form a bi-level CYMK image of the page to be printed.
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Abstract
A processor is provided for a printer. The processor includes an address, data and control bus. An expander unit is coupled to the bus and is configured to decompress a bi-level black layer of a page to be printed. A decoder unit is coupled to the bus and is configured to decompress a contone layer of the page to be printed. A halftoner/compositor unit is coupled to the bus. The halftoner/compositor unit is configured to halftone the decompressed contone layer to form a bi-level cyan, yellow, magenta, and black (CYMK) layer and then composite the decompressed bi-level black layer over the bi-level CYMK layer to form a bi-level CYMK image of the page to be printed.
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Citations
7 Claims
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1. A processor for a printer, the processor comprising:
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an address, data and control bus; an expander unit coupled to the bus and configured to decompress a bi-level black layer of a page to be printed; a decoder unit coupled to the bus and configured to decompress a contone layer of the page to be printed; and a halftoner/compositor unit which is coupled to the bus, and is configured to halftone the decompressed contone layer to form a bi-level cyan, yellow, magenta, and black (CYMK) layer and then composite the decompressed bi-level black layer over the bi-level CYMK layer to form a bi-level CYMK image of the page to be printed. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification