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. 09, 2011
Filed:
Feb. 15, 2008
Gerd Spalink, Stuttgart, DE;
Gerd Spalink, Stuttgart, DE;
Sony Deutschland GmbH, Berlin, DE;
Abstract
Digital filter (), comprising: a first frequency shifting mechanism () configured to shift an input spectrum (H(f)) of an input signal () by a first frequency distance (F) to obtain a shifted frequency signal () with a shifted spectrum; a filter (), configured to filter said shifted frequency signal with a predetermined transfer function to obtain a filtered signal (); and a signal processor (), said signal processor including: an adder (), and at least a second frequency shifting mechanism (), said signal processor () being configured to generate an output signal (), which is a sum of said filtered signal () and said shifted frequency signal () and said output signal () has an output spectrum, which is shifted by a second frequency distance (DF) with respect to said shifted spectrum, wherein said second frequency distance (DF) is independent of said first frequency distance (F).