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:
Feb. 12, 1991
Filed:
Oct. 17, 1988
Gerard Auvray, Longpont Sur Orge, FR;
Thomson-CSF, Paris, FR;
Abstract
A digital filter having parallel paths with a plurality of transverse filters in the paths. The period of treating the digital information of N connections at the output of a circuit for calculating the discrete Fourier transform on 2N points. The output of the transverse filter is fed to a circuit for calculating the inverse Fourier transform. These two circuits permit the transverse filters to function in each path with a data period of N. The filter will find particular application in convolvers, courolaters, and for circuits for the compression of digital pulses. The filter lends itself to application, particularly in radar, sonar, telecommunications, and in sound and imaging systems.