Color map wrappers and packets
AssigneeHewlett-Packard Development Company, L.P.
InventorsStephen J. Nichols, George Henry Kerby
Life of this patent
Estimating the term…
Abstract
A memory structure stores a plurality of color maps, the entity, when decompressed by a printer controller, comprising a plurality of first level wrappers, each first level wrapper including at least one characteristic to identify a corresponding color map, and a recipe to define and locate packets for constructing the color map, the recipe having at least one locator for each second level wrapper; and a plurality of second level wrappers of different types, each second level wrapper wrapping a corresponding packet.
Claims25
An integrated circuit for a replaceable print component associated with a print material of a predetermined color, the integrated circuit comprising
- a memory storing print data including wrappers and packets to construct a plurality of color maps, and
- interface contacts to, when connected to a printer controller, in response to a request from the printer controller, communicate the print data to the printer controller,
- the print data including
- a plurality of color map wrappers, different color map wrappers corresponding to different color maps, each color map wrapper including
- a first level tag indicating a media for a color map, and
- a color map recipe to construct the color map, the recipe identifying second level wrappers including a DCT (discrete cosine transform) wrapper and a residue wrapper, each, by at least one locator included in the recipe;
- a plurality of DCT wrappers, each DCT wrapper comprising
- at least one second level tag corresponding to the locator, and
- wrapping around a DCT packet of the color map;
- and
- a plurality of residue wrappers, each residue wrapper comprising
- at least one second level tag corresponding to the locator, and
- wrapping around a residue packet of the color map;
- wherein
- each DCT packet is associated with a corresponding residue packet through the color map recipe.
A print cartridge memory structure storing a single compressed data container including a plurality of color maps, the data container, when decompressed by a printer controller, comprising
- a plurality of first level wrappers, each first level wrapper associated with a color map of the plurality of color maps and including
- at least one characteristic to identify a corresponding color map, and
- a recipe to define and locate packets for constructing the color map, the recipe having at least one locator for each second level wrapper that pertains to one of the packets;
- a plurality of second level wrappers of different types, each second level wrapper
- including at least one tag to facilitate being located by the locator, and
- wrapping a packet to be decoded by the printer controller;
- and
- a plurality of said wrapped packets of different types, wherein packets of different types are to be combined to obtain a single selected color map based on the recipe, and
- the second level wrappers comprise DCT table wrappers and residue node table wrappers and their wrapped packets comprise DCT tables and residue node tables, respectively.
Dependencies are inferred from the claim text.