Provided is a regenerative switched reluctance motor driving system which allows a motor to have a reduced size and weight and an increased efficiency as well as improved energy recovery efficiency at the time of regenerative braking without using a neodymium magnet. The inventive system comprises a message server provided for receiving the messages from the first terminal and for transmitting them to the second telecommunications terminal. The all-pass rotates the phase of the interference component to be eliminated in one of the uncompensated transmission signals to overall a phase difference of 180\xb0 relative to the phase of the corresponding interference component in the other uncompensated transmission signal. The hash values for the connections detected during a predetermined time period are stored in the first table. A tungsten layer is then deposited to fill the trench. In an embodiment, a device includes a user-accessible digital storage medium, and a storage medium manager module.