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:
Nov. 03, 1998
Filed:
Apr. 23, 1997
Applicant:
Inventor:
Ed Gancarcik, Ottawa, CA;
Assignee:
Mitel Corporation, Kanata, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379377 ; 379387 ;
Abstract
An event detector for a headset connected to a telephone, comprising a switch for short circuiting a microphone of the headset and a circuit for detecting a hookswitch flash in the event the duration of the short circuiting of the microphone is greater than a predetermined minimum and less than a predetermined maximum duration.