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:
Oct. 19, 1993
Filed:
Nov. 07, 1990
Eastman Kodak Company, Rochester, NY (US);
Abstract
An LED Printhead having a row of LED's includes a binary architectured driver that drives each LED on for a series of sub-intervals related to a series of binary weighted recording clocking pulses to record a grey level pixel in accordance with an appropriate series of data bits latched in the driver. The series of data bits are formatted for presentation to the driver by a retransmit line buffer which transmits n times the data of one line of grey level pixels represented by n bits each to a process correction look-up table. Another look-up table provides a signal to the process look-up table as to the intensity characteristics of the particular LED which is to print the pixel. The corrected grey level data is then input to a multiplexer which selects one of the n bits for printing in accordance with count signals related to the binary weight of the recording clock pulses.