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:
Nov. 28, 1989
Filed:
May. 04, 1988
Gerardus C Gielis, Eindhoven, NL;
Antonius J Bogers, Eindhoven, NL;
Steven J Van Lerberghe, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A digital lattice filter, comprising a plurality of identical stages each having a pair of inputs for receiving input signals and a pair of outputs for supplying output signals, these stages being connected in a cascade arrangement, each stage consisting in two mutually linked branches and no less than one of these branches comprising delay means, and in that always an even number of successive cascaded filter stages forms a group, in which both branches of each group of filter stages comprise a delay elements such that the time delay in the first branch is equal to the time delay in the second branch.