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. 26, 2004
Filed:
Mar. 01, 2002
Applicant:
Inventors:
Hassan K. Bazargan, San Jose, CA (US);
Jian Tan, Milpitas, CA (US);
Atul V. Ghia, San Jose, CA (US);
Suresh M. Menon, Sunnyvale, CA (US);
Assignee:
Xilinx, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract
A hot swap protection circuit ( ) for an integrated circuit being plugged into a powered-up system includes a first circuit ( ) for detecting a hot swap condition, a second circuit ( ) coupled to the first circuit for preventing a pn junction diode ( ) in a pull-up transistor ( ) from going into a forward bias condition, and a third circuit ( ) coupled to the first and second circuits for preventing the pull-up transistor from turning on during the hot swap condition.