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:
Jul. 03, 2007
Filed:
Oct. 07, 2002
Marcel DE Blok, Amsterdam, NL;
Adrianus M. Lafort, Delft, NL;
Dion I. DE Roo, Voorburg, NL;
Sonion Nederland B.V., Amsterdam, NL;
Abstract
In a microphone cartridge, a flexible printed circuit board serves two functions, separating the diaphragm and backplate, and electrically connecting the cartridge and the buffer amplifier. The flex-print includes a spacer portion that maintains the appropriate distance between the diaphragm and backplate, and an integral lead portion having a conductor serving as the signal path for transmitting the signal from the cartridge to the amplifier. The spacer portion has a conductor that electrically contacts the diaphragm or backplate and is connected to the conductor of the integral lead portion. The integral lead portion may optionally include a second electrical conductor providing a reference path from the cartridge to the amplifier. Further, the flex-print may be used as the carrier for the amplifier, its associated circuitry, and for other circuitry within the listening device. And, the flex-print may be used as a portion of the diaphragm subassembly and/or the backplate subassembly