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.

Date of Patent:
Sep. 24, 2013

Filed:

Mar. 30, 2012
Applicants:

Lei Xu, High Wycombe, GB;

Volker Mauer, Princes Risborough, GB;

Steven Perry, High Wycombe, GB;

Inventors:

Lei Xu, High Wycombe, GB;

Volker Mauer, Princes Risborough, GB;

Steven Perry, High Wycombe, GB;

Assignee:

Altera Corporation, San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A specialized processing block such as a DSP block may be enhanced by including direct connections that allow the block output to be directly connected to either the multiplier inputs or the adder inputs of another such block. A programmable integrated circuit device may includes a plurality of such specialized processing blocks. The specialized processing block includes a multiplier having two multiplicand inputs and a product output, an adder having as one adder input the product output of the multiplier, and having a second adder input and an adder output, a direct-connect output of the adder output to a first other one of the specialized processing block, and a direct-connect input from a second other one of the specialized processing block. The direct-connect input connects a direct-connect output of that second other one of the specialized processing block to a first one of the multiplicand inputs.


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