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:
Dec. 11, 2012
Filed:
Dec. 30, 2004
Gerrit Buhe, Wedemark, DE;
Axel Haupt, Langenhagen, DE;
Frank Plath, Wedemark, DE;
Jan Watermann, Hannover, DE;
Gerrit Buhe, Wedemark, DE;
Axel Haupt, Langenhagen, DE;
Frank Plath, Wedemark, DE;
Jan Watermann, Hannover, DE;
Sennheiser electronic GmbH & Co. KG, Wedemark, DE;
Abstract
The invention relates to a process for the transmission of digitized audio information of high quality and with a short delay, in particular processes for the transmission of digitized audio information in an audio pickup (microphone) and/or playback path. According to the invention there is proposed a channel filter which is used to shape the high frequency spectrum of the transmission, wherein the spectrum has no attenuation in a first range of about 100 to 300 kHz useful bandwidth and in a range outside the first range it has a stop-band attenuation of particularly preferably more than 60 dB or more than 80 dB.