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:
Nov. 03, 2020
Filed:
Oct. 25, 2017
Usound Gmbh, Graz, AT;
Andrea Rusconi Clerici Beltrami, Vienna, AT;
Ferruccio Bottoni, Graz, AT;
Markus Haensler, Graz, AT;
USOUND GMBH, Graz, AT;
Abstract
An amplifier unit for operating a piezoelectric loudspeaker or microphone includes an audio amplifier and a detection unit, which is configured to detect whether a sound transducer coupled to the amplifier unit is a piezoelectric sound transducer or a dynamic sound transducer. The amplifier unit is configured in such a way that, after a sound transducer has been coupled, the amplifier unit sends a test signal to the coupled sound transducer. Moreover, a sound-generation unit includes a sound transducer and an amplifier unit, which amplifies an audio signal and feeds it to the sound transducer.