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:
Nov. 03, 1987
Filed:
Sep. 24, 1986
Applicant:
Inventors:
Assignee:
Hitachi, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; B41J / ;
U.S. Cl.
CPC ...
346 / ; 400120 ;
Abstract
A signal-processing circuit of a heat-sensitive recording apparatus comprising a temperature detector for detecting the temperature near a heat-sensitive head is disclosed, in which an energization code train read from a ROM for storing the energization time-concentration characteristics corresponding to the .gamma. characteristic of the inking paper is corrected in accordance with the head temperature, and a print is produced in accordance with the energization code train thus corrected.