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:
Jun. 29, 2010
Filed:
Aug. 09, 2004
Osama Sami Haddadin, Salt Lake City, UT (US);
Brad Terry Hansen, Salt Lake City, UT (US);
L. Andrew Gibson, Jr., Riverton, UT (US);
Roland Richard Henrie, Provo, UT (US);
Osama Sami Haddadin, Salt Lake City, UT (US);
Brad Terry Hansen, Salt Lake City, UT (US);
L. Andrew Gibson, Jr., Riverton, UT (US);
Roland Richard Henrie, Provo, UT (US);
L-3 Communications Corporation, New York, NY (US);
Abstract
A block polyphase filter is constructed of a set of filter blocks having different filter functions, and being arranged for parallel processing of portions of an input sequence of signals. Signals of the input sequence are divided among the blocks by a demultiplexer for processing at a clock frequency lower than a clock frequency of the input signal sequence. The filter blocks are arranged in groups, wherein output signals of the blocks in any one group are summed to produce an output signal of the filtered group. Output signals of all of the filter groups are multiplexed to provide an output signal sequence wherein the repetition frequency of the signals may be higher, lower, or equal to the repetition frequency of the input signal sequence depending upon the ratio of the number of filter groups to the number of filter blocks in the set of filter blocks.