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1. US20130293560 - RENDERING DEVICE AND RENDERING METHOD

Office United States of America
Application Number 13882532
Application Date 27.01.2011
Publication Number 20130293560
Publication Date 07.11.2013
Publication Kind A1
IPC
G09G 3/36
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G09G 3/3611
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3611Control of matrices with row and column drivers
Applicants Nakata Masanori
MITSUBISHI ELECTRIC CORPORATION
Kushiro Noriyuki
Katsukura Makoto
Koizumi Yoshiaki
Inventors Nakata Masanori
Kushiro Noriyuki
Katsukura Makoto
Koizumi Yoshiaki
Priority Data 2010-245743 01.11.2010 JP
Title
(EN) RENDERING DEVICE AND RENDERING METHOD
Abstract
(EN)

A DMA controller operates independently from a CPU, reads image data stored on an ROM sequentially in given units from the first reading start position of the image data and writes the image data into a buffer. A DMA controller operates independently from the CPU, writes the data read into the buffer to a VRAM one byte at a time from the writing start position. The controller of a companion chip updates the writing start position in the VRAM to the position of the same column in the next row each time writing the data string in each row is completed.