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:
Jul. 31, 2001
Filed:
Feb. 02, 1999
Matthias Meier, Roseville, CA (US);
Samuel M. Babb, Fort Collins, CO (US);
Scott P. Allan, Fort Collins, CO (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A computer system includes a first power rail having a first voltage level, such as 5 volts, and a second power rail having a second voltage level, such as 3.3 volts. A PCI connector receives a first type PCI card having I/O buffers operable at the first voltage level or receives a second type PCI card having adaptable I/O buffers operable at the first voltage level or the second voltage level. The PCI connector includes voltage I/O pins for supplying power to the I/O buffers. Sensing circuitry provides a sense signal having a first state when the first type PCI card is inserted and having a second state when the second type PCI card is inserted. Switching circuitry is responsive to the sense signal at the first state to provide the first voltage level on the voltage I/O pins and is responsive to the sense signal at the second state to provide the second voltage level on the voltage I/O pins.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile