Abstract: Second signal lines are selected among neighboring signal lines near a first signal line, such that the second signal lines have valid coupling capacitances with respect to the first signal line. Test signal patterns of the first signal line and the second signal lines are selected among real signal patterns according to a function of the integrated circuit. At least one of a coupling noise and a coupling transition delay of the first signal line is calculated based on the test signal patterns.

Abstract: A device includes a first microphone at a first position on the device, a second microphone at a second position on the device, a first speaker at a third position on the device, and a second speaker at a fourth position on the device. The first, second, third, and fourth positions of the device are different positions. The device also includes a controller configured to determine a physical characteristic of the device. The controller is further configured to select, based on the determined physical characteristic, among the first microphone at the first position on the device and the second microphone at the second position on the device. The controller is additionally configured to select, based on the determined physical characteristic, among the first speaker at the third position on the device and the second speaker at the fourth position on the device.

Abstract: second signal lines are selected among neighboring signal lines near a first signal line, such that the second signal lines have valid coupling capacitances with respect to the first signal line. Test signal patterns of the first signal line and the second signal lines are selected among real signal patterns according to a function of the integrated circuit. At least one of a coupling noise and a coupling transition delay of the first signal line is calculated based on the test signal patterns.

Abstract: A device includes a first microphone at a first position on the device, a second microphone at a second position on the device, a first speaker at a third position on the device, and a second speaker at a fourth position on the device. The first, second, third, and fourth positions of the device are different positions. The device also includes a controller configured to determine a physical characteristic of the device. The controller is further configured to select, based on the determined physical characteristic, among the first microphone at the first position on the device and the second microphone at the second position on the device. The controller is additionally configured to select, based on the determined physical characteristic, among the first speaker at the third position on the device or the second microphone at the fourth position on the device.