Browse Prior Art Database

Compressed Hangeul Composing Device Upon Gestalt Recognition

IP.com Disclosure Number: IPCOM000113724D
Original Publication Date: 1994-Sep-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 6 page(s) / 240K

Publishing Venue

IBM

Related People

Koyanagi, T: AUTHOR [+2]

Abstract

Disclosed is a Hangeul composition device with vertical 8 or 9 dots upon a newly designed Hangeul component (Jamo) division, turning the human recognition process to our advantage.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 47% of the total text.

Compressed Hangeul Composing Device Upon Gestalt Recognition

      Disclosed is a Hangeul composition device with vertical 8 or 9
dots upon a newly designed Hangeul component (Jamo) division, turning
the human recognition process to our advantage.

      A precisely composed Hangeul character  requires  vertical 13
to 15 dots in minimum to be displayed or printed on the output
devices.

      This invention realizes  low cost output devices  for Hangeul
characters in correct proportion with a minimum dot matrix with which
they composed Hangeul characters in distorted proportion.

      A Hangeul character exresses a syllable by composing Hangeul
components (Jamo).  A Hangeul component is a equivalent unit to a
alphabet character, which expresses a consonant or a vowel.  There
are two types of Hangeul font handling method among the exsisting
Hangeul character output devices.
  1.  the device loaded with already composed Hangeul font
  2.  the device loaded with Hangeul components before composition

      The advantage of the method (1) is a quality output, since a
font designer can freely design each composed Hangeul characters in
the dot matrix.  This method is usually adopted to  medium or high
cost output devices that are designed for high quality output, since
a
full set of composed Hangeul font requires a large space of the
storage.

      On the other hand, the method (2) utilizes a Hangeul component
for various Hangeul characters in similar proportion.  This feature
makes restrictions in designing a composed Hangeul character,
therefore,  high quality output cannot be expected by this method.
Low cost is the advantage of this method  and  this method is quite
common in designing low cost output devices.

This invention stands on the method (2).

      The existing output devices with such small number of vertical
dots distort the proportion of composed Hangeul characters to express
every Hangeul component in the limitted dot matrix.

      In the case of IBM 4690 POS Workstation, its Receipt/Journal
Printer distorts complex Hangeul characters in this manner.  The
followings are the examples of this distortion.  The left characters
are in the correct proportion and the right characters are in the
distorted proportion.

      Though these distorted characters are not correct Hangeul
characters, similar distortion methods are generally adopted for low
cost output devices with around 10 vertical dots by various makers.
This distortion method brings users some difficulties to
intuitionally read the output characters.  Since the composed
characters do not show correct proportion, users have to interpret
the characters after recognizing individual compornents in each
composed character.

      The human recognition process was studied to achieve better
legibility with low cost output devices for Hangeul characters.

      Here is a example of the recognition process on English wor...