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:
Jun. 26, 1990
Filed:
Sep. 14, 1988
Mark W Pocock, Ottawa, CA;
Bradley P Basnett, Ottawa, CA;
Michael K Eldershaw, Nepean, CA;
Peter Fatovic, Ottawa, CA;
Jacques Gagnon, Kanata, CA;
Nahum Goldmann, Nepean, CA;
Conrad D Lafrance, Aylmer, CA;
Anthony J Langenberg, Kanata, CA;
W John McKeen, Ottawa, CA;
Northern Telecom Limited, Montreal, CA;
Abstract
A modular microphone assembly housed in a handsfree telephone apparatus provides an environment that is isolated from a loudspeaker installed within the apparatus and through which environment the directional and frequency response characteristics of a directional microphone capsule contained within a closable cavity of a microphone mounting receptacle in the assembly are altered via a predetermined internal surface configuration of the receptacle to improve the performance of the apparatus.