Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2000-05-23
2004-10-12
Evans, Arthur G. (Department: 2622)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S523000
Reexamination Certificate
active
06804026
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to a compact printer system able to print full-color, business card size documents from a device about the size of a pen. The system includes various hot-connectable modules that provide a range of functions. In particular the invention relates to a color conversion method for a compact printer system.
Reference may be had to co-pending applications claiming priority from Australian Provisional Patent Application number PQ0560 dated 25 May 1999. The co-pending applications describe related modules and methods for implementing the compact printer system. The co-pending applications are as follows:
Our
Docket
USSN
Number
Our Title
09/575,182
PP01
Compact Color Printer Module
6,712,452
PP02
Modular Compact Printer System
6,416,160
PP03
Nozzle Capping Mechanism
6,238,043
PP04
Ink Cartridge for Compact Printer System
09/575,119
PP07
Controller for Printer Module
09/575,135
PP08
Camera Module for Compact Printer System
09/575,157
PP09
Image Processor for Camera Module
6,554,459
PP10
Memory Module for Compact Printer System
09/575,134
PP11
Effects Module for Compact Printer System
09/575,121
PP12
Effects Processor for Effects Module
09/575,137
PP13
Timer Module for Compact Printer System
09/575,120
PP16
Method and Apparatus of Dithering
09/575,122
PP17
Method and Apparatus of Image Conversion
BACKGROUND OF THE INVENTION
Microelectronic manufacturing techniques have led to the miniaturization of numerous devices. Mobile phones, personal digital assistant devices, and digital cameras are very common examples of the miniaturization trend.
One device that has not seen the advantage of microelectronic manufacturing techniques is the printer. Commercially available printers are large compared to many of the devices they could support. For instance, it is impractical to carry a color printer for the purpose of instantly printing photographs taken with known compact digital cameras.
A compact printhead has been described in co-pending United States Patent Applications filed simultaneously to the present application and hereby incorporated by cross reference:
Our Docket
USSN
Number
Our Title
09/575,152
MJ62
Fluidic seal for an inkjet nozzle assembly
6,428,133
IJ52
Ink jet printhead having a moving nozzle
with an externally arranged actuator
6,526,658
IJMS2
Method of manufacture of an inkjet
printhead having a moving nozzle with an
externally arranged actuator
09/575,176
MJ363
Ink jet printhead nozzle array
6,390,591
MJ58
Nozzle guard for an inkjet printhead
SUMMARY OF THE INVENTION
In one form, the invention resides in a method of converting, in an image processor, from a first tri-color space to a second tri-color space, said method comprising the steps of:
reading color components of pixels of an image stored in a first tri-color space;
performing tri-linear conversion of said color components from said first color space to said second color space by executing a single interpolation in each cycle; and
storing said converted color components in a specific storage location.
Further features of the invention will be evident from the following description.
REFERENCES:
patent: 4275413 (1981-06-01), Sakamoto et al.
patent: 5471324 (1995-11-01), Rolleston
patent: 5592312 (1997-01-01), Noguchi
patent: 5592591 (1997-01-01), Rolleston
patent: 5699491 (1997-12-01), Barzel
patent: 5809181 (1998-09-01), Metcalfe
Evans Arthur G.
Silverbrook Research Pty LTD
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