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. 13, 2005
Filed:
Feb. 13, 2003
Mark D. Frank, Longmont, CO (US);
Jerimy C. Nelson, Fort Collins, CO (US);
Karl J. Bois, Fort Collins, CO (US);
Mark D. Frank, Longmont, CO (US);
Jerimy C. Nelson, Fort Collins, CO (US);
Karl J. Bois, Fort Collins, CO (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A computer-implemented method is disclosed for verifying signal via impedance. Properties of a signal via and of any other vias within a given distance of the signal via are read from a circuit design database. A target characteristic impedance value for the signal via is obtained. A characteristic impedance of the signal via is calculated based on the other vias. The signal via is flagged as having an incorrect characteristic impedance if the calculated characteristic impedance does not match the target characteristic impedance value.