Title :
High density digital videodisc using 635 nm laser diode
Author :
Tsuchiya, Yoichi ; Tada, Koichi ; Terasaki, Hitoshi ; Ichiura, Shuichi ; Ota, Osamu
Author_Institution :
Hypermedia Res. Center, Sanyo Electr. Co. Ltd., Gifu, Japan
fDate :
8/1/1994 12:00:00 AM
Abstract :
By developing a high resolution pick-up using a red laser diode with a wavelength of 635 nm and by examining the disc parameters, we have developed a CD-ROM which has a recording density four times that of existing CDs. The track pitch of this CD-ROM is 0.85 μm and the recording linear velocity is 0.7 m/s. With these disc parameters, a storage capacity of 2.2 GB was obtained. We recorded digital motion pictures with a data transfer rate of 4 Mbps onto the disc and succeeded in the realization of a high quality digital videodisc with one hour of playback time
Keywords :
CD-ROMs; digital storage; pick-ups; semiconductor lasers; video and audio discs; 1 hour; 2.2 Gbit; 635 nm; CD-ROM; data transfer rate; digital motion pictures recording; disc parameters; high density digital videodisc; high resolution pick-up; playback time; recording density; recording linear velocity; red laser diode; storage capacity; track pitch; wavelength; CD recording; CD-ROMs; Diode lasers; Disk recording; Laser beam cutting; Lenses; Motion pictures; Optical recording; Transform coding; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
