In an exemplary embodiment, a system includes a camera and a processor communicatively coupled to the camera. The control circuit, which is electrically coupled to the plurality of CAM array blocks, is configured to perform built-in self repair of hard memory defects andor compare logic defects in the plurality of CAM array blocks concurrently with operations to search entries in the plurality of CAM array blocks. Replacement elements can be taken from the input, or from another seed source, and can be identified by chaotic mapping or by scanning for a suitable match. The welding implement may be operated by disposing a magnet proximate to the welding implement to actuate the magnetically-actuated switch. The predetermined active and reactive power desired values are then limited to the calculated maximum permissible values. The carcass, in a region between the belt binding point and the bead binding point, is formed with a length shorter than that of a theoretical carcass between the belt binding point and the bead binding points determined in accordance with an equilibrium figure.