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:
Aug. 24, 1993
Filed:
Mar. 26, 1991
James L Beck, Versailles, KY (US);
James R Booth, Nicholasville, KY (US);
James C Buchanan, Lexington, KY (US);
Margaret E Claffey-Cohen, Jupiter, FL (US);
Carl P Cole, Lexington, KY (US);
Timothy J Louie, Boca Raton, FL (US);
Alan F Neel, II, Boca Raton, FL (US);
Lynn M Oliver, Lexington, KY (US);
James P, Ward, Boca Raton, FL (US);
James F Webb, Lexington, KY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A parallel interface connects a data processor and a printer so that each may transmit information to the other or receive information from the other. The transmitted information from the data processor can be data or status signals. The data or status signals are transmitted over the same eight information lines between the data processor and the printer with a predetermined signal being sent over another line from the data processor to the printer prior to transmission over the eight lines to identify whether the transmitted information is data or status signals. The printer sends status signals to the data processor over the same eight information lines after sending a predetermined signal to the data processor over a further line that it is going to transmit.