This invention relates generally to a method for repairing a casting, and more specifically to a method of repairing a casting by pouring melted filler material into a damaged portion of the original casting. During an initialization stage, a transformation Ti is allocated to at least one reception frequency Fi of the input voice signals xi, and during a utilization stage, transformations Ti are applied simultaneously to the input voice signals xi as a function of the reception frequencies Fi, modifying at least one characteristic of each of the input voice signals xi. Additionally, the pan structure includes a pair of edge members configured to couple the plate member respectively with the two rail structures. The parts consist of a Worm Wheel ; an enmeshing Worm Shaft ; a Paul ; a Leaf Spring ; a Ratchet cylinder ; an Acuator Rod ; a Guide ; an End Connector ; a Clevis ; and Clevis Pins and 2. An electrical wire is electrically coupled to the heating element. After processed like this, the anti-interfering ability of the bits at both ends of TDMA frame time slot can be significantly enhanced, and the bit-error rate is decreased most, and all redundancy bits of Hamming codes can be arrayed at both ends of TDMA frame time slot.