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. 12, 2005
Filed:
Apr. 25, 2002
Applicant:
Vladimir Botchev, Nashua, NH (US);
Inventor:
Vladimir Botchev, Nashua, NH (US);
Assignee:
Analog Devices, Inc., Norwood, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F017/14 ;
U.S. Cl.
CPC ...
Abstract
A real-valued FFT processor implements Bergland's real-valued FFT and uses unique interstage switching/delay modules to reduce pipeline latency. Modified hybrid floating point arithmetic is also employed to provide maximum SNR. The real-valued FFT processor is particularly suited for a DMT engine and, in a multichannel CO ADSL application, the DMT engine can be multiplexed between the channels to provide an economic, low cost CO solution.