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. 23, 2004
Filed:
Sep. 18, 2000
Applicant:
Inventors:
John Albert Piunno, Jr., Wickliffe, OH (US);
Thomas Richard Heilman, Wickliffe, OH (US);
Assignee:
ABB Automation Inc., Wickliffe, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 7/00 ; H03D 3/24 ;
U.S. Cl.
CPC ...
H04L 7/00 ; H03D 3/24 ;
Abstract
A method and apparatus for performing frequency synthesis in a communication system. A fiber optic repeater connected between a copper bus and a fiber optic cable includes a voltage controlled oscillator and associated circuitry to adjust the frequency at which the repeater operates to match the frequency of the device that generated the incoming data stream. This adjustment is performed on-both data received from the copper bus or the fiber optic cable on a message by message basis.