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:
Aug. 24, 1982
Filed:
Dec. 17, 1979
Applicant:
Inventors:
Kenneth G Buss, Dallas, TX (US);
Norman L Culp, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 357 15 ;
Abstract
An annunciator is disclosed which has an improved charging circuit for storing the energy of a ring signal received via an improved Schottky diode bridge rectifier, and an oscillator-driven variable divider which actuates an audible output device when the stored charge exceeds a threshold level.
Quick Actions:
Buss, Kenneth. (1982). Annunciator (U.S. Patent No. 4346265). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4346265
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