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:
May. 25, 1999
Filed:
Jun. 03, 1993
Daniel Lee Heflin, Front Royal, VA (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
In a control system for controlling a very large number of remotely located input and output devices there is provided a novel control system having a single CPU coupled through a host interface module to a data and control transmission line. The host interface module on the transmission line receives information from and transmits information to a plurality of secondary interface modules having node addresses. The information being transmitted on the control and data transmission line is formatted to comprise one or two data bytes, an address and command byte, and an error checking byte to permit operation in a noisy electrical environment. Each said interface modules is further provided with high speed logic and an address counter for identifying node addresses and carrying out the commands and transmission of data without the requirement for software or firmware.