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:
Oct. 18, 2011
Filed:
Jun. 05, 2006
Martin Langhammer, Alderbury, GB;
Kwan Yee Martin Lee, Hayward, CA (US);
Orang Azgomi, Sunnyvale, CA (US);
Keone Streicher, San Ramon, CA (US);
Robert L. Pelt, San Jose, CA (US);
Martin Langhammer, Alderbury, GB;
Kwan Yee Martin Lee, Hayward, CA (US);
Orang Azgomi, Sunnyvale, CA (US);
Keone Streicher, San Ramon, CA (US);
Robert L. Pelt, San Jose, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A specialized processing block for a programmable logic device incorporates a fundamental processing unit that performs a sum of two multiplications, adding the partial products of both multiplications without computing the individual multiplications. Such fundamental processing units consume less area than conventional separate multipliers and adders. The specialized processing block further has input and output stages, as well as a loopback function, to allow the block to be configured for various digital signal processing operations, including finite impulse response (FIR) filters and infinite impulse response (IIR) filters. By using the programmable connections, and in some cases the programmable resources of the programmable logic device, and by running portions of the specialized processing block at higher clock speeds than the remainder of the programmable logic device, more complex FIR and IIR filters can be implemented.