Noise analyzing method and apparatus and storage medium
AssigneeFujitsu Limited
InventorsYasuhiro Yamashita, Shogo Fujimori, Ryoji Yamada, Kazuhiko Tokuda, Makoto Suwada, Masaki Tosaka, Jiro Yoneda, Yoshiyuki Iwakura, Kazunari Gotou
Life of this patent
Estimating the term…
Abstract
A noise analyzing method analyzes a crosstalk noise based on circuit data in which buses having the same signal transmitting direction and buses having opposite signal transmitting directions are distinguished from each other, by analyzing the crosstalk noise only for the same signal transmitting direction with respect to the buses having the same signal transmitting direction.
Claims15
A noise analyzing method comprising:
- analyzing a crosstalk noise based on circuit data in which buses having the same signal transmitting direction and buses having opposite signal transmitting directions are distinguished from each other, by analyzing the crosstalk noise only for the same signal transmitting direction with respect to the buses having the same signal transmitting direction;
- grouping the buses having the same signal transmitting direction into a bus group which is managed as a bus group definition file;
- and
- said bus group definition file including a driver/receiver group in which parts having the same signal transmitting direction are grouped as a driver/receiver group.
A noise analyzing apparatus comprising:
- an analyzing section analyzing a crosstalk noise based on circuit data in which buses having the same signal transmitting direction and buses having opposite signal transmitting directions are distinguished from each other, by analyzing the crosstalk noise only for the same signal transmitting direction with respect to the buses having the same signal transmitting direction;
- a managing section grouping the buses having the same signal transmitting direction into a bus group which is managed as a bus group definition file;
- and
- said bus group definition file including a driver/receiver group in which parts having the same signal transmitting direction are grouped as a driver/receiver group.
A computer-readable storage medium which stores a program for causing a computer to carry out a noise analyzing process, by:
- causing the computer to analyze a crosstalk noise based on circuit data in which buses having the same signal transmitting direction and buses having opposite signal transmitting directions are distinguished from each other, by analyzing the crosstalk noise only for the same signal transmitting direction with respect to the buses having the same signal transmitting direction;
- and
- causing the computer to group the buses having the same signal transmitting direction into a bus group which is managed as a bus group definition file, said bus group definition file including a driver/receiver group in which parts having the same signal transmitting direction are grouped as a driver/receiver group.
A computer-readable storage storing a program causing a computer to carry out a noise analyzing process, by:
- based on circuit data in which buses having the same signal transmitting direction and buses having opposite signal transmitting directions are distinguished from each other, analyzing the crosstalk noise only for the same signal transmitting direction with respect to the buses having the same signal transmitting direction;
- and
- grouping the buses having the same signal transmitting direction into a bus group which is managed as a bus group definition file, the bus group definition file including a driver/receiver group in which parts having the same signal transmitting direction are grouped as a driver/receiver group.
Dependencies are inferred from the claim text.