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. 19, 2013
Filed:
May. 04, 2010
Manfred Hibbing, Wedemark, DE;
Tom-fabian Frey, Braunschweig, DE;
Manfred Hibbing, Wedemark, DE;
Tom-Fabian Frey, Braunschweig, DE;
Sennheiser electronic GmbH & Co. KG, Wedemark, DE;
Abstract
The present invention concerns a feed device for feeding a microphone with a dc voltage. The feed device has first, second and third terminals (a, b, c), a resistor arrangement having at least a one resistor (R-R) and a dc voltage source () for providing a feed voltage. In that case the resistor arrangement is disposed between the dc voltage source () and the first and second terminals (a, b). In addition the feed device has a measuring device and a control device (). The measuring device detects a dc voltage between the first and second terminals and the third terminal, and the control device () reduces or increases the ohmic resistance of the resistor arrangement and the feed voltage of the dc voltage source ().