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:
Sep. 25, 1990
Filed:
Oct. 19, 1987
Applicant:
Inventors:
Ronald J Kern, Noblesville, IN (US);
Alan D Michel, Noblesville, IN (US);
William V Powell, Jr, Indianapolis, IN (US);
Assignee:
AT&T Information Systems Inc., Morristown, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 70 ; 379 88 ;
Abstract
A telephone answering machine having solid state storage of an outgoing announcement (OGA) is improved by magnetic tape apparatus 120 for providing backup protection of the OGA in the event of a power failure. Also stored on the magnetic tape is the time duration of the OGA. Analog to digital conversion of the OGA, for storage in Dynamic Random Access Memories 210, 220 and 230, proceeds at a sampling rate that is inversely proportional to the time duration of the OGA to assure that the available memory space is fully utilized.