An apparatus and method for recording and/or reproducing a digital signal. An input digital signal is received and processed by a recording processing device so as to form a recording signal. The recording signal may be recorded onto and reproduced from a recording medium. The reproduced...http://www.google.de/patents/US5809207?utm_source=gb-gplus-sharePatent US5809207 - Digital signal recording and/or reproducing apparatus having a phase-locked loop for generating a clock signal from recording signals during a recording operation and reproducing signal during a reproducing operation and a method thereof 
