摘要:
A programmable display controller for use in a digital imaging system has a video control register, a data access controller and a programmable modulator. The programmable display control is designed to be used with a digital imaging systems, such as digital cameras, having a variety of display different devices that require respective different control signals, different image signal modulations, and so on. The video control register stores video mode bits indicating the type of video signal to output. The data access controller has a buffer for requesting image data and storing the requested image data in the buffer. The programmable modulator, in response to the video mode bits, generates a video signal from the image data stored in the buffer. In some embodiments, a decoder detects and decodes a link code in received image data. An address generator is responsive to the decoder and outputs a link address corresponding to the decoded link code for fetching image data that is stored at the link address.
摘要:
A softproofing system and method render an input document for display on a monitor to faithfully represent projected output from a target print engine, where the displayed document representation rendering is modeled to include internal print engine specific enhancements or characteristics of the target print engine. The system and method identify the target print engine and print engine specific rendering characteristics from the specified content, such as an input file, which may be a raster image or an electronic file in a PDL format. Specific print engine characteristics may include halftone screen identification, error diffusion identification, halftone dot shape, write white, write black, anti-aliasing, line width compensation and specific tone reproduction curves.
摘要:
A method and system for determining chromatic content of a page of an electronic document. Object level color analysis is performed on a page of the electronic document to determine whether the page is chromatic, achromatic or has highlight color, based on the object level color analysis. The page is then classified as chromatic, achromatic or highlight color, based on the results of the determination.
摘要:
A raster image target tracking method, the raster image being a binary raster image or a targeted contone raster image, may include determining target information that corresponds to a target device for the raster image, saving the target information in a memory, comprising the raster image target device to a processing device by which the document is to be processed, and providing a warning message when the document target device does not correspond to the processing device. Also, a compound document analysis and target tracking method may include providing a compound document, analyzing each object of the compound document to determine target information, saving the target information in a memory, comparing the target devices of the respective objects to each other, and providing a warning message to a user when the target devices of the respective objects do not correspond to each other.
摘要:
The invention generates a page description language compliant data stream, that has been pre-designed and pre-processed to create unique and predictable page element ordering, overlay layout, and for splitting large page elements into multiple independent elements. In this way, multiple processors can be used to render the document without merging the data stream.
摘要:
A softproofing system and method render an input document for display on a monitor to faithfully represent projected output from a target print engine, where the displayed document representation rendering is modeled to include internal print engine specific enhancements or characteristics of the target print engine. The system and method identify the target print engine and print engine specific rendering characteristics from the specified content, such as an input file, which may be a raster image or an electronic file in a PDL format. Specific print engine characteristics may include halftone screen identification, error diffusion identification, halftone dot shape, write white, write black, anti-aliasing, line width compensation and specific tone reproduction curves.
摘要:
A print controller which produces a device specific raster for its printer and also produces a rasterized output in portable and more editable form for export and re-use as an input by other printers which may have different parameters. If the input is in a device independent color space, the rasterized export also will be in a version in a device independent color space, typically CIELAB. If the input is in a printable device dependent color space such as CYMK, the output will be an more editable rasterized version in the same color space, with any printing hints that were in the original will be included in the output. In any case, an override can be provided to change the default selection to any other user-identified version. An example of a device independent color space is CIELAB, of a device dependent version applicable for a number of printers with similar parameters is SWOP CMYK, and of a device dependent version is a printer specific CMYK.
摘要:
A programmable timing generator for a digital imaging system has a first clock generator and a second clock generator. The first clock generator includes a programmable microsequencer and generates a plurality of first clock signals in response to the microsequencer. The second programmable clock generator is responsive to the microsequencer and generates second clock signals. The first clock signals have a lower frequency than the second clock signals. In a typical implementation, the second clock signals are called horizontal clock signals, which are used for clocking rows of pixel data out of a digital image sensor, while the first clock signals are called vertical clock signals that are used for shifting pixel data one position in vertical shift registers in the digital image sensor. The horizontal or vertical clock signals can also be used to control the image capture operation of the digital sensor, with the programmable microsequencer being used to control the image capture exposure time.
摘要:
A system and method for converting a first print file having embedded job ticket data generated in a first format into a second print file of a second format while preserving the embedded job-ticket data. A computer system and a computer program are configured to convert the first print file to the second print file by translating the first print file to the second print file, searching the first print file for the embedded job ticket data and associated page ranges, and inserting the embedded job ticket data and associated page ranges identified by the searching into the translated second print file. A printing system includes a digital frontend, an image output terminal, and an interpreter unit. The interpreter unit is configured to parse the second print file for the inserted job ticket data and program a print job based on the parsed job ticket data.
摘要:
A compressed I/O bus system for a general-purpose computer multiplexes 32 bit data and addresses on 32 of 42 dedicated parallel signal paths, and optimizes the bus structure by mapping bus requests made by peripheral devices to "high" memory portions of system RAM not dedicated to other purposes. In one aspect a bus controller is programmable to select translation routines stored in system RAM, allowing various models and types of CPUs to be supported. In this aspect, supported CPUs are interchangeable in the system. In another aspect a default interface attaches to the compressed I/O bus of the invention, and translates bus states between the optimized compressed bus and one of an ISA bus or an EISA bus.