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:
Dec. 09, 2003
Filed:
Aug. 02, 2002
Craig G. Mitchell, South Barrington, IL (US);
3Com Corporation, Rolling Meadows, IL (US);
Abstract
A line card connectable to a backplane connector includes a connector. The connector includes connector terminals, a subset of which are connected to an insertion monitoring circuit. The insertion monitoring circuit includes a power conductor connected to a first terminal of the subset. One or more pull up resistors are connected to the power conductor. One or more sense lines are connected to one or more second terminals of the subset. The first terminal is positioned on the card so as to be connectable to the backplane connector before the one or more second terminals. An insertion detection device is provided for detecting an insertion of the card. A state device is connected to the insertion detection device for calculating a primary insertion count from the detection of the insertion and a non-volatile memory device is connected to the state device for storing the primary insertion count.