Simultaneous recording and reproduction apparatus and...

Single digital signal processor to record digital audio data on

Single disk write protection system for multiple-disk cartridge

Single erasable optical recording layer having both retention an

Single frequency laser source for optical data storage system

Single laser direct read after write system (draw)

Single loop servo-positioning systems having means for changing

Single means for converting beam widths of plural laser...

Single motor disc player with a Geneva mechanism

Single motor disk loading device with lock gear

Single motor driving device for a mini-disc player

Single objective lens for use with CD or DVD optical disks

Single objective lens for use with CD or DVD optical disks

Single objective lens for use with CD or DVD optical disks

Single objective lens optical pick-up head

Single PLL demodulation of pre-formatted information...

Single polymer layer recordable/erasable optical media

Single return path orthogonally-arranged optical focus and track

Single source optical disc data storage system

Single stage track seek method