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:
Mar. 14, 2006
Filed:
Nov. 20, 2001
Ken Gentile, Bahama, NC (US);
Ken Gentile, Bahama, NC (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
Digital filters are provided that include a converter and a data processor. The converter converts successive strings of M successive data elements that occur at a system rate Fin an input data stream Dto M parallel data elements that respectively occur at a substream rate F/M in M data substreams D. At a reduced substream rate F/M, the processor generates M convolutions of the filter's quantized impulse response with the M data substreams wherein each of the convolutions is arranged to generate a different one of M successive filtered output signals. Because the convolutions are conducted at the reduced substream rate F/M, the filters can operate at increased system rates. Preferably, the digital filter also includes a multiplexer that selects, at the system rate F, the M filtered output signals in successive order to thereby form a filtered output data stream D.