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. 19, 1991
Filed:
Jan. 10, 1990
Applicant:
Inventor:
George V Lenaerts, London, CA;
Assignee:
Northern Telecom Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04M / ;
U.S. Cl.
CPC ...
379 67 ; 379 82 ; 379387 ;
Abstract
A control circuit for a telephone answering device provides the capability of disconnecting the telephone answering device from a telephone line and powering a microphone contained within a telephone handset connected to the telephone answering device. Recording of outgoing messages can then be done through the telephone set thus reducing background and tape noise. The control circuit also provides the capability of disabling the functions of the telephone answering device when any telephone set, connected to the same telephone line as the telephone answering device, is taken off-hook.