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:
Aug. 14, 2001
Filed:
Dec. 29, 1997
Sandeep K. Jain, Folsom, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A method and apparatus is disclosed for reducing ringing of a digital signal delivered over a transmission line. A clamping circuit implemented in accordance with one embodiment of the invention includes a delay circuit. The delay circuit receives an input signal delivered over a transmission line and delivers a second signal after a preselected delay. A driver circuit receives the second signal and the input signal and provides an enable signal to a transistor for a period of time corresponding to the preselected delay. The transistor is coupled between a supply voltage and the transmission line. An inverter having an input and an output is also included, with the input of the inverter electrically connected to the transmission line. An additional transistor is electrically coupled between the supply voltage and the transmission line. The additional transistor has an enable input that is electrically connected to the output of the inverter to enable the additional transistor when the inverter outputs a predetermined voltage level.