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. 05, 1991
Filed:
Jan. 16, 1990
Applicant:
Inventor:
C Earle Theall, Jr, Weston, CT (US);
Assignee:
Plessey Electronic Systems Corp., Wayne, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H / ;
U.S. Cl.
CPC ...
333112 ; 333119 ; 375 36 ; 379443 ;
Abstract
A coupler for a balanced two wire data transmission line includes input and output ports as well as a forward coupled port and a reflected coupled port. The coupler is constructed of passive components including transformers and resistors to provide at the forward coupled port a signal proportional to the signal transmitted from a source to a load and provide at the reflected coupled port a signal proportional to the magnitude of the signal reflected from the load due to mismatch.