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:
Feb. 28, 2006
Filed:
Nov. 09, 1998
Hamid R. Baradaran, Novato, CA (US);
Hamid R. Baradaran, Novato, CA (US);
Alcatel USA Sourcing, L.P., Plano, TX (US);
Abstract
A line card provides terminating resistors for a bus or traces on a backplane. The line card terminations are activated (connected to ground) by a crossbar switch that is set according to programming (software/firmware/flash memory stored instructions) maintained on the line card to set the state of the resistive terminations. The programming maintained on the line card may be downloaded to the card into nonvolatile storage. The decision to utilize a specific line card to terminate or leave the bus unterminated is made by a control unit that sends command messages to the line card. A polling device interrogates each line card and sets the physically last card on the bus as a terminating card. The command messages are in ADSL Provisioning Message format and transmitted to each line card via a CPU Cell Data Link (CCDL).