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:
Jun. 24, 1986
Filed:
Nov. 29, 1984
Irving Erlichman, Wayland, MA (US);
Polaroid Corporation, Cambridge, MA (US);
Abstract
A closed loop thermal recording system and method are provided for recording an image represented by pixel areas of varied density on a thermally sensitive recording medium. The system receives electronic image information defining a desired density for each pixel area and applies thermal energy to selected pixel areas to record in each a dot having an initial size that is smaller than necessary to achieve its desired density. The density levels provided by the initial dots are measured and compared to desired density. Based on these comparisons, additional thermal energy is applied to progressively to increase dot size until a predetermined density comparison value is achieved for each selected pixel area.