Patent ID: 6185366
Filing Date: 2001-02-06
Classification: H04N

Abstract:
An apparatus for recording and reproducing a coded signal on/from a recording medium, the coded signal being coded at a predetermined coding rate (Rb) and transmitted for a time shorter than an actual reproducing time at a transmission rate higher than the coding rate (Rb), the apparatus comprising:first buffer memory for storing the coded signal at a first transmission rate (Ra) substantially equal to the transmission rate;recording and reproducing means for recording the coded signal outputted from the first buffer memory on a recording medium at a second transmission rate (Rc) higher than the first transmission rate (Ra), for reproducing the coded signal recorded on the recording medium at the second transmission rate (Rc);recording control means for issuing a recording instruction to the recording and reproducing means when the first buffer memory is filled with a certain amount of the coded signal reproduced by the recording and reproducing means;second buffer memory for storing the coded signal reproduced by the recording and reproducing means at the second transmission rate;reproducing control means for interrupting a reproduction operation of the recording and reproducing means when the second buffer memory is filled with a certain amount of the coded signal; anddecoding means for decoding the coded signal from the second buffer memory at the coding rate to reproduce in real time by using the reproducing control means,wherein the recording is performed at the second transmission rate (Rc) by using a recording head, the reproducing is performed at the second transmission rate (Rc) by using a reproducing head andwherein the reproducing of the coded is performed while the coded in the first buffer memory is being decreased from maximum state by stopping the recording and switching the recording head to the reproducing head.