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:
May. 24, 2005
Filed:
Sep. 25, 2002
Ketan Zaveri, San Jose, CA (US);
Christopher F. Lane, Campbell, CA (US);
Srinivas T. Reddy, Fremont, CA (US);
Andy L. Lee, San Jose, CA (US);
Cameron R. Mcclintock, Mountain View, CA (US);
Bruce B. Pedersen, San Jose, CA (US);
Ketan Zaveri, San Jose, CA (US);
Christopher F. Lane, Campbell, CA (US);
Srinivas T. Reddy, Fremont, CA (US);
Andy L. Lee, San Jose, CA (US);
Cameron R. McClintock, Mountain View, CA (US);
Bruce B. Pedersen, San Jose, CA (US);
Altera Corporation, San Jose, CA (US);
Abstract
A programmable logic device is provided that contains circuitry that may be used for observing logic signals from programmable logic circuits on the device for testing the operation of the device. Circuitry is also provided that may be used for preloading data into various circuits on the device. The logic signal observing circuitry may allow registered signals to be observed, may allow combinatorial signals to be observed, or may allow both registered and combinatorial signals to be observed.