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:
Jul. 14, 1987
Filed:
May. 09, 1986
William M Rucki, Euclid, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
An electrical load controller includes a combination of switches for selecting a desired load output level, an electronic custom gate array for converting the switch signals to a parallel binary number, a parallel to serial data encoder for converting the multi-bit parallel data signal into a multi-bit serial data signal, a frequency shift key connected to a resonant circuit generating a controllable high frequency signal and for shifting the high frequency either up or down from the center frequency coupled to a power line to transmit the binary serial data onto the power line. The system also includes a fail-safe construction so that, should the control system fail, the load will be operable. The system provides continuous communication from the controller to the power line, so that should noise interfere with one data transmission, subsequent data transmission will provide correct data to the load, thereby making load control nearly immune to extraneous noise on the power line.