Abstract: A tennis training device comprises a ball, a rope, and a hollow pole, the ball being coupled with a portion of a first end of the rope, a part of the rope being in a cavity of the pole, the rope being knotted at or near the second end of the rope. The training device may be coupled with a support. A method of training various tennis shots comprises the steps of obtaining the training device; adjusting a length of a first portion of the rope which is outside the pole between an first end of the pole and the first end of the rope; holding the pole to set the ball at a selected height; and allowing a player to hit the ball with a tennis racquet. Multiple trainers may participate the training with the training devices and allow a player to practice a combination of different tennis shots.

Abstract: The present invention provides an endian mapping engine for use with a processing system. In one embodiment, the endian mapping engine includes an identification unit configured to identify sending and receiving endian schemes for data transfers between components of the processing system. Additionally, the endian scheme converter also includes a conversion unit coupled to the identification unit and configured to convert the data transfers between the sending and receiving endian schemes corresponding to an employed endian format. In an alternative embodiment, the endian mapping engine further includes a multiplexing unit coupled to the identification unit and configured to provide multiplexing between endian formats for a given endian scheme.

Abstract: A tennis training device comprises a ball, a rope, and a hollow pole, the ball being coupled with a portion of a first end of the rope, a part of the rope being in a cavity of the pole, the rope being knotted at or near the second end of the rope. The training device may be coupled with a support. A method of training various tennis shots comprises the steps of obtaining the training device; adjusting a length of a first portion of the rope which is outside the pole between an first end of the pole and the first end of the rope; holding the pole to set the ball at a selected height; and allowing a player to hit the ball with a tennis racquet. Multiple trainers may participate the training with the training devices and allow a player to practice a combination of different tennis shots.