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Application specific integrated circuit (ASIC) in the form of a printer processor

  • US 7,349,125 B2
  • Filed: 04/19/2007
  • Issued: 03/25/2008
  • Est. Priority Date: 11/09/1998
  • Status: Expired due to Fees
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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