Unlock instant, AI-driven research and patent intelligence for your innovation.

Device for converting data using look-up tables

Inactive Publication Date: 2005-11-22
SAMSUNG ELECTRONICS CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accordingly, device miniaturization is restricted and the volume of the required hardware and manufacturing cost are increased since memory devices are needed in accordance with the number of LUTs according to the kinds of converting modes.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for converting data using look-up tables
  • Device for converting data using look-up tables
  • Device for converting data using look-up tables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022]FIG. 3 is a data structure diagram of a ROM applied to the present invention.

[0023]The entire memory capacity of a memory device is divided into blocks corresponding to the number of LUTs required for the kinds of converting modes, and a memory capacity of each divided block is divided into sub-blocks corresponding to the number of conversion levels of the corresponding LUT. Converting data is stored in the divided blocks and sub-blocks according to the corresponding converting mode and conversion level.

[0024]An embodiment of the present invention governs the case where the input data is image data consisting of eight bits, and each LUT is defined by a converting mode (for example, brightness, contrast, etc.) for controlling image quality, and the image quality can be controlled by four conversion levels in each converting mode.

[0025]In applying the present invention, if the number of bits of input data, the kinds of converting modes and the number of conversion levels are dif...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A data converting device for converting data by employing a plurality of LUTs stored in a single memory device. The device generates, with reference to two or more LUTs sequentially, a converted output data corresponding to input data and converting level selected by each LUT. The data converting device has a single memory device for storing two or more LUTs corresponding to the number of data converting modes by block units, each block including a plurality of sub-LUTs corresponding to the number of converting levels defined in each corresponding converting mode. The device also has an address generator for generating an address for accessing the memory device by an input data, by the data selected among the output data read from the memory device and by the data for selecting a converting level in each converting mode, the address being generated repeatedly a number of times which corresponds to the number of LUTs stored in the memory device, to thereby minimize the bulk of the memory device, and thus enable the miniaturization of the data converting device.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a data converting device for converting input data such as image data or voice data according to a user's request, and more particularly, to a data converting device for converting data by employing a multitude of look-up-tables (LUTs) composed of converting data corresponding to input data.[0002]In the conventional image output apparatus such as a color printer or facsimile, when image quality is compensated for brightness, contrast or tint by employing LUTs, an LUT for compensating each image characteristic, defined by each compensation mode, has to be stored in a discrete ROM. For example, when image quality is compensated by three kinds of compensation modes, three memory devices are needed for storing three kinds of LUTs.[0003]FIG. 1 is a block diagram showing a data converting device using LUTs in a conventional color printer. First, second and third ROMs 12, 14 and 16 are memory devices for storing LUT data for...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F3/00G09G5/00G06F12/02G06F3/14G06T5/00G06T5/40H04N1/60
CPCH04N1/6019G06T5/92
Inventor JUNG, LEE-WHA
Owner SAMSUNG ELECTRONICS CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com