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. 06, 2002
Filed:
Jan. 08, 1999
Paul M. Griffin, Charlotte, NC (US);
Guy H. Berthiaume, Charlotte, NC (US);
Siemens Power Transmission & Distribution Inc., Wendell, NC (US);
Abstract
An electrical energy meter includes a voltage digitizing circuit, a current digitizing circuit, a metering circuit, a clock circuit, and a source of externally-generated time standard information. The voltage digitizing circuit is operable to obtain analog line voltage information and generated digital line voltage information therefrom. Similarly, the current digitizing circuit is operable to obtain analog line current information and generate digital line current information therefrom. The metering circuit is operable to receive the digital line voltage information and the digital line current information and generate metering information therefrom. The clock circuit is operable to generate calendar/clock information, said clock circuit having a calibration input for receiving precision time calibration information. The source of externally-generated time standard information is operably coupled to provide precision time calibration information to the calibration input of the clock circuit.