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. 15, 1985
Filed:
Nov. 15, 1984
Hans-Peter Baumeister, Churchville, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
In connecting a microprocessor to several condition-sensitive switches and several slow-reacting loads such as motors and solenoids, the input/output ports of the microprocessor may be simplified and reduced in number by incorporating a switch and a load on the same output port. Each load is connected to a separate output port. Each switch is also connected between an output port (which is also connected to a load) and a common input port. The switches are interrogated by a time-divided stream of pulses, each pulse being too short to noticeably affect the operation of any load. The closure of a switch is noted by detecting, at the input port, the presence of any pulses that passed through the closed switch.