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:
Jan. 31, 1989
Filed:
Mar. 10, 1986
Mordecai Barkan, Palo Alto, CA (US);
Alex Genusov, Haifa, IL;
Michael Granski, Haifa, IL;
Paul Budnik, Los Gatos, CA (US);
Refael Retter, Haifa, IL;
Zoran Corporation, Santa Clara, CA (US);
Abstract
A digital filter processor employs four multiplier-accumulator cells and an output accumulator for receiving and accumulating all cell outputs. Data is provided to all cells in parallel, and finite impulse coefficients are applied serially to all cells. A plurality of registers and at least one multiplexer interconnect the cells for transmitting the coefficients between cells. The registers can be employed for sample rate reduction or decimation. A plurality of processors can be cascaded for processing an increased number of coefficients without a reduction in sample time. Alternatively, data can be recycled in a processor to accommodate a number of coefficients greater than the number of cells at a reduced sampled sample rate. A cell address is provided for selecting cell outputs during the reading of the filtered/processed data.