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:
Jun. 08, 2004
Filed:
Dec. 17, 2001
Intel Corporation, Santa Clara, CA (US);
Abstract
A circuit for driving and receiving signals on a bus line includes a pull-up switch and a pull-down switch. The pull-up switch has an impedance that matches the characteristic impedance of the bus line. The pull-down switch has an impedance of about half of the characteristic impedance of the bus line. When the circuit is receiving a signal or driving a logic high signal on the bus line, the pull-up switch is enabled so that the bus line voltage is pulled up, while the pull-down switch is disabled to prevent the pull-down switch from pulling down the bus line voltage. When the circuit is driving a logic low signal on the bus line, the pull-down switch is enabled so that the bus line voltage is pulled down, while the pull-up switch is disabled to prevent the pull-up switch from pulling up the bus line voltage.