Patent ID: 8255864
Filing Date: 2012-08-28
Classification: G06F

Abstract:
1. A computer-based method for checking signal transmission lines of a circuit board, the method comprising: reading a circuit board layout file from a storage device of a computing device, wherein the circuit board layout file comprises arrangement information of the signal transmission lines of the circuit board, and the arrangement information of the signal transmission lines comprises a number of the signal transmission lines arranged on the circuit board; selecting a signal transmission line from the circuit board layout file; obtaining design standards of the selected signal transmission line, wherein the design standards comprise a reference length of each line segment of the selected signal transmission line, and a reference distance between each line segment of the selected signal transmission line and a corresponding line segment of each neighboring signal transmission line; computing an actual length of each line segment of the selected signal transmission line, and computing an actual distance between each line segment of the selected signal transmission line and a corresponding line segment of each neighboring signal transmission line; determining a design of the selected signal transmission line satisfies the design standards, if each actual length of the line segments of the selected signal transmission line is less than or equal to a corresponding reference length and each actual distance of the selected signal transmission line and a neighboring signal transmission line is more than or equal to a corresponding reference distance, or determining the design of the selected signal transmission line does not satisfy the design standards, if any actual length is more than a corresponding reference length, or if any actual distance is less than a corresponding reference distance; and repeating from the selecting step until all signal transmission lines in the circuit board layout file have been checked.