Data port transient protection apparatus and methods

An electrical system, comprising:

• at least one port adapted to receive a serial bus connector;
• a circuit adapted to compare an amount of return voltage between a signal pair to a present voltage level, thus yielding a comparison value;
• and
• a controller adapted to shut off power to the port based at least in part upon the comparison value, the comparison value determining a reduction profile and a restoring profile that cooperate to reduce a recovery time after the power shut off;
• wherein
• the controller is adapted to restore power to the at least one portion of the outgoing port according to the restoring profile.

An integrated circuit (IC) apparatus, comprising a substantially semiconductive die, said die comprising:

• a first gate logic adapted to detect an amount of return voltage between at least one signal pair;
• a second gate logic adapted to compare the amount of return voltage to a predetermined voltage level, thus yielding a comparison value;
• and
• a third gate logic adapted to at least reduce power to at least a portion of an outgoing port based at least in part upon the comparison value, the comparison value determining a reduction profile and a restoring profile that cooperate to reduce a recovery time of the outgoing port after the power reduction, wherein
• the third gate logic is adapted to restore power to the at least one portion of the outgoing port according to the restoring profile.