Title :
Multimedia type digital audio disc system
Author :
Murata, Seiji ; Tanifuji, Takashi ; Yamamoto, Hiroshi ; Sumi, Satoshi ; Torazawa, Kenji
Author_Institution :
Sanyo Electr. Co. Ltd., Gifu, Japan
fDate :
8/1/1989 12:00:00 AM
Abstract :
The authors have developed a multimedia DAD (digital audio disc) CD (compact disc), a write-once-type disc, and an MO (magnetooptical) disc. To realize this system, they developed an overwrite function on the MO disc that uses the magnetic field modulation method and system control techniques for the compatibility of three types of discs. The DAD system has a recording time of more than 70 min. The optical head, MO disc, magnetic head, read/write characteristics, and player system are discussed
Keywords :
magnetic heads; magneto-optical recording; optical disc storage; video and audio discs; 70 min; compatibility; digital audio disc system; magnetic field modulation method; magnetic head; magnetooptical disc; multimedia compact disc; optical head; overwrite function; player system; read/write characteristics; recording time; system control techniques; write-once-type disc; Audio recording; CD recording; Control systems; Magnetic fields; Magnetic heads; Magnetic modulators; Magnetooptic recording; Multimedia systems; Optical modulation; Optical recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
