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:
Jul. 07, 1987
Filed:
Dec. 06, 1985
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Abstract
A recording system for driving heating elements of a thermal printing head such that the recording intensity is substantially the same at two different recording speeds. One of at least two given recording character modes is selectively set, each of the recording character modes setting a given different recording speed. At least the pulse amplitude of a driving electric power signal, which is selectively applied to the heating elements of the thermal head, is varied in accordance with the set recording character mode while keeping the pulse cycle of the driving electric power signal at a predetermined substantially constant period. The pulse amplitude of the driving electric power signal has a higher value when recording at a higher speed and a lower value when recording at a lower speed. In addition to controlling the amplitude of the driving electric power signal, it is possible to further control the pulse widths of the pulses forming the driving electric power signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile