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. 30, 1999
Filed:
Jul. 03, 1996
Applicant:
Inventors:
Edward P Gancarcik, Ottawa, CA;
Chuk Wally Seto, Almonte, CA;
Assignee:
Mitel Corporation, Kanata, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379413 ; 379377 ; 379422 ;
Abstract
A standby feed circuit for a subscriber line comprising a constant current power feeding circuit for a subscriber line for supplying a voltage to a subscriber line at a voltage less than a standard central office power feeding circuit, a voltage source for providing the standard voltage, apparatus for applying the standard voltage when a station apparatus connected to the subscriber line is in an on-hook condition, and apparatus for applying said voltage less than the standard voltage in place of the standard voltage when the station apparatus is in an off-hook condition.