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:
Feb. 15, 1983
Filed:
Dec. 23, 1980
Applicant:
Inventors:
Richard F Lach, Hartford, CT (US);
Richard W Calcasola, Longmeadow, MA (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370 13 ; 370 15 ; 179 / ; 1791 / ;
Abstract
Common seat group transducer BITE circuitry located within the seat group SEB is responsive to the audio signal output of each transducer driver amplifier, the transducer BITE circuitry sensing the peak-to-peak voltage amplitude of the output signal to determine the operability of each driver, and sensing the current amplitude and frequency of the output signal to determine the transducer operability.