Patent · US Expired

Signal line impedance adjustment tool

US6971077B1 · kind B1 · utility

11Cited by
4References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 13, 2003
Grant dateNov 29, 2005
Priority date
Expiry dateDec 21, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05K3/0005
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A computer-implemented method for adjusting impedance is disclosed. A desired impedance value for a signal line in an electrical circuit layout is read, and the signal line is identified in a circuit design database. A window is established around the signal line in which circuit elements will be included in an impedance adjustment for the signal line. The impedance adjustment is performed by adjusting at least one of the circuit elements in the window to bring an impedance of the signal line nearer the desired impedance value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.