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:
Mar. 02, 2004
Filed:
Oct. 19, 2000
Stanley S. Hirshi, El Paso, TX (US);
David C. Nemir, El Paso, TX (US);
X-L Synergy, LLC, El Paso, TX (US);
Abstract
A power level controller and method for an AC electrical appliance that can be implemented in the plug of the appliance, controlling power in response to switch closures on the appliance and/or remotely located switches, or alternatively, may be implemented as a module into which an existing appliance is inserted, thereby providing a retrofit solution for appliance control. By using multifunction switches having steering diodes, multiple commands can be transmitted to the controller, all without the need for additional control wires, since all commands are superimposed on the two conductors that deliver power to the appliance. In addition, the independent control of two polarity sensitivity loads may be implemented. With implementations using integrated circuits, the internal electrostatic discharge diodes within the integrated circuit may be used for the power supply to yield a very low parts count system.