The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 1979
Filed:
Jul. 08, 1977
Riccardo Brescia, Ivrea, IT;
Ing. C. Olivetti & C., , IT;
Abstract
The printer is provided with a single tracing element for tracing characters under the control of stored digital instructions corresponding to a set of segments of the character. The tracing element is moved on the printing surface according to a pair of coordinates, within the limits of each character. To this end it is carried by a frame including a pair of hinged elements directed according to the two coordinates and moved by a pair of electromagnets. These latter are controlled by feed back circuits including a pair of position sensors. The frame is mounted on a carriage transversely movable according to other instruction for letter spacing. A movement of the printing element according to a third coordinate causes the tracing element to press the paper with a pressure corresponding to the thickness of the sign. The instructions of each segment include the speed of the tracing element along the two coordinates, whereby by altering either the time interval of operation or the amplitude of signals, the character can be altered in sizes along one or two coordinates. The instructions of one or more alphabets or type fonts are stored in a pluggable ROM addressable by input signals. The printer is particularly adapted for electronic typewriters, word processing apparatus, as well as for running hand and ideographic characters, for example, characters of Arabic, Urdu, Chinese, Kanji etc. languages.