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. 11, 1991
Filed:
Mar. 28, 1988
Applicant:
Inventors:
Lazare Argintaru, Le Pre Saint Gervais, FR;
Daniel Arnassand, Cachan, FR;
Philippe Leclair, Antony, FR;
Assignee:
Alcatel Thomson Faisceaux Hertziens, Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ; H03H / ;
U.S. Cl.
CPC ...
364602 ; 333166 ; 364825 ; 455340 ;
Abstract
A digital filter operating at intermediate frequency, having a transverse filter; a recursive filter; a device for storing the different coefficients of the two filters; a D-A conversion device situated at the output of this storage device; a device for addressing this storage device; and controls for the addressing device.