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:
Dec. 14, 1976
Filed:
Jun. 28, 1974
Theodoor Antonius Claasen, Eindhoven, NL;
Wolfgang Friedrich Mecklenbrauker, Eindhoven, NL;
Johannes Bernhard Peek, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
Recursive digital filter comprising at least two digital delay devices, a multiplying device having two inputs which are coupled to one another in a common branch point, a summing device from which a sum signal is derived the magnitude of which is at least equal to the sum of the output signal of the multiplying device, and a feedback circuit connected between the output of the summing device and the distribution point. The feedback circuit is provided with a discarding device which acts on numbers given in sign-and-magnitude representation and which by means of magnitude truncation restricts the number of bits of the numbers applied to the branch point.