Method and apparatus for signaling the volume level of reproduci

Method and apparatus for simultaneously recording information da

Method and apparatus for successively recording two EFM-modulate

Method and apparatus for synchronizing multiple CD players

Method and apparatus for synchronizing the readout of a sequenti

Method and apparatus for tracking servo system

Method and apparatus for using a frequency difference to...

Method and apparatus for writing and reading optical recording m

Method and apparatus for writing and reading optical recording m

Method and apparatus for writing and reading optical recording m

Method and apparatus for writing and reading optical recording m

Method and apparatus of adjusting focusing servo in optical...

Method and apparatus of determining a recording condition...

Method and apparatus of recording and reproducing picture inform

Method and apparatus of reproducing data from an information...

Method and arrangement for regulating the light power of a...

Method and associated apparatus and medium for optical recording

Method and device for controlling the rotating speed of a...

Method and device for determining a set of recording pulse...

Method and device for determining disk size and stopping a...