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. 21, 2001
Filed:
Feb. 03, 2000
Timothy M. Croushore, Greensburg, PA (US);
William C. Guyker, Greensburg, PA (US);
Walter M. Curt, Harrisonburg, VA (US);
Glen K. Shomo, III, Harrisonburg, VA (US);
Chris F. Mullins, Harrisburg, VA (US);
James M. Childers, IV, Yorktown, VA (US);
Electric Power Research Institute, Inc., Palo Alto, CA (US);
Abstract
An apparatus to establish bi-directional digital communication over a power line network includes a signal launching circuit to impose a digital communication signal onto a power signal carried by a power line network and thereby form a digital communication power signal at a first point in the power line network. The signal launching circuit is configured to position a pulse of the digital communication signal at any phase location of each half cycle of the power signal. A receiver reads the digital communication power signal at a second point in the power line network. A signal processor is connected to the receiver to recover the digital communication signal from the digital communication power signal.