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Method of Generating Soft Font Results in Electrolytic Printing

IP.com Disclosure Number: IPCOM000052325D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Kuntzleman, HC: AUTHOR [+2]

Abstract

Dynamic character formation based, for example, on dot matrix manipulations usually yields a normal character 10, as shown in Fig. 1. It would, however, be advantageous to form an enhanced character 12, as shown in Fig. 2, for use in word processing or a like application. Enhancement of characters formed by dot matrix write electrodes or print heads has typically been achieved through the use of grey scale schemes and multiple pass techniques, both of which utilize rather sophisticated algorithms that are costly to implement or time consuming to run.

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Method of Generating Soft Font Results in Electrolytic Printing

Dynamic character formation based, for example, on dot matrix manipulations usually yields a normal character 10, as shown in Fig. 1. It would, however, be advantageous to form an enhanced character 12, as shown in Fig. 2, for use in word processing or a like application. Enhancement of characters formed by dot matrix write electrodes or print heads has typically been achieved through the use of grey scale schemes and multiple pass techniques, both of which utilize rather sophisticated algorithms that are costly to implement or time consuming to run.

It has been found that soft font can be utilized to improve the readability of and thereby enhance dot-generated information. By removing the jaggedness and thereby improving the visual smoothness of all line segments or dots used to form characters and graphic information, scintillation has a tendency to diminish. As a result, image quality is considerably improved.

This result, as noted above, is usually achieved through the utilization of sophisticated techniques. It has been found that a similar but more cost effective result can be achieved by electromechanical means. A print or write head 14 is mechanically coupled to a voice coil 16 that is driven at 20 to 30 KHz. As shown in Fig. 3, the coil 16, when excited, imparts a motion of +/- .001" to the head 14 and thereby actually creates a dot of .002" increased width, assuming a write time of 500 micr...