Abstract: A synthesis signal which was reproduced from reproducing apparatus and converted into an analog signal includes an analog information signal and a copy control code. The copy control code is modulated by a spread spectrum. A code reading unit of the recording apparatus extracts the copy control code by an inverse spread spectrum. A code changing unit changes the copy control code by a spread spectrum as necessary. An output signal of the code changing unit is converted into a digital signal. The digital signal is subjected to processes necessary for recording and is recorded to a recording medium.

Abstract: An improved coiler device of a spinning machine, wherein a downstream portion of a coiler tube is further bent downward at a position adjacent to a place where a sliver exits, a flange extending upward is arranged in a coiler wheel side of a coiler plate, whereby an exit opening of the coiler tube is formed from a bottom face of the coiler wheel to the flange, and the coiler plate is movably constituted so that a relative speed of an inside face of the flange to that of the coiler tube is lower than a moving speed of the coiler tube.