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. 22, 2023
Filed:
Nov. 18, 2021
U.e. Systems, Inc., Elmsford, NY (US);
William Bishop, Pleasantville, NY (US);
Gary Mohr, Cortlandt Manor, NY (US);
U.E. SYSTEMS, INC., Elmsford, NY (US);
Abstract
An automatic sensitivity adjusting analog ultrasonic sensor includes an ultrasonic transducer, and a front end adjustable gain amplifier that amplifies the received ultrasonic signal from the transducer. A processor generates a carrier signal and a heterodyning circuit combines the carrier signal and the amplified ultrasonic signal to form a modulated signal spectrum from which an audio spectrum signal is generated. The processor further monitors the amplitude level of the audio spectrum signal and executes an auto sensitivity adjustment algorithm that automatically adjusts the sensitivity (the gain) of the analog front end amplifier down if the amplitude is above a preset upper threshold or up if the amplitude is below a present lower threshold. The processor may also further monitors the amplitude level of the ultrasonic signal level directly from the front end adjustable gain amplifier and execute the auto sensitivity adjustment algorithm as required.