Abstract: A coaxial gear set comprising: a crankshaft which can be rotated about an axis of rotation and has at least one connecting rod bearing; and multiple, preferably at least three, pistons, each connected to the crankshaft by means of a connecting rod and which each have a toothing with at least one tooth on a first end face facing away from the axis of rotation. The coaxial gear set also comprises: a hollow shaft having internal toothing, wherein the pistons are located inside the hollow shaft when viewed in a plane normal to the axis of rotation; and a guide unit, wherein the pistons are each linearly guided in the guide unit and can be moved back and forth parallel to a radial direction normal to the axis of rotation, as a result of which the toothings of the first end faces of the pistons can be successively brought into meshing engagement with the internal toothing and out of meshing engagement with said internal toothing.

Abstract: A coaxial gear set comprising: a crankshaft which can be rotated about an axis of rotation and has at least one connecting rod bearing; and multiple, preferably at least three, pistons, each connected to the crankshaft by means of a connecting rod and which each have a toothing with at least one tooth on a first end face facing away from the axis of rotation. The coaxial gear set also comprises: a hollow shaft having internal toothing, wherein the pistons are located inside the hollow shaft when viewed in a plane normal to the axis of rotation; and a guide unit, wherein the pistons are each linearly guided in the guide unit and can be moved back and forth parallel to a radial direction normal to the axis of rotation, as a result of which the toothings of the first end faces of the pistons can be successively brought into meshing engagement with the internal toothing and out of meshing engagement with said internal toothing.

Abstract: A system is operated to transmit signals from a transmitter to a receiver. The transmitter is muted. A receiver transfer function for the receiver is adjusted so that an output signal of the receiver is minimized. A transmitter transfer function of the transmitter is set to be inverse to the adjusted receiver transfer function.

Abstract: A method of operating a system (100, 200) for transmitting signals (si, S2, 202) from a transmitter (101, 206) to a receiver (104, 207), the method comprising the step of muting the transmitter (101, 206), adjusting a receiver transfer function of the receiver (104, 207) so that an output signal (sout) of the receiver (104, 207) is minimized, and setting a transmitter transfer function of the transmitter (101, 206) to be inverse to the adjusted receiver transfer function.