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. 01, 1988
Filed:
Dec. 18, 1986
Arup K Bhattacharya, Peekskill, NY (US);
Michael G Cristofalo, Pleasantville, NY (US);
David Koo, Briarcliff Manor, NY (US);
Amihai Miron, Ossining, NY (US);
Imran A Shah, North White Plains, NY (US);
North American Philips Corporation, New York, NY (US);
Abstract
An architecture for a very large scale integrated (VLSI) implementation of a finite imprise response (FIR) digital filter having no multipliers and a coefficient space limited to powers of two. The filter structure includes a data bus, a coefficient bus and a sum-in bus to each coefficient tap. Each tap has a coefficient and control word register which is loaded during an initialization phase of the filter. Multiplication is provided by a shifter which provides the correct power of two weighting of an input data sample. The weighted data sample at each tap is added to the output of the previous tap. This architecture results in a regular, modular structure which can be cascaded and which is programmable for various data word lengths and coefficient spaces.