Title :
High density MUSE videodisc
Author :
Terasaki, Hitoshi ; Tsuchiya, Yoichi ; Ota, Osamu
Author_Institution :
Sanyo Electr. Co. Ltd., Gifu, Japan
fDate :
8/1/1991 12:00:00 AM
Abstract :
A MUSE (multiple sub-Nyquist sampling encoding) video disc with 60 min. of playback time per side of CLV disk has been developed. The recording density of the disc is double that of the NTSC video disc. A visible-laser diode with a wavelength of 670 nm and an objective lens with a numerical aperture of 0.6 are used for playing the disc. A fine played-back image with a signal-to-noise ratio of 44 dB was obtained. Two kinds of audio signals are recorded, frequency-division multiplexed PCM (pulse code modulation) and time-division multiplexed PCM. In both systems, a low error rate which presents no practical problems was obtained
Keywords :
encoding; frequency division multiplexing; pulse-code modulation; semiconductor junction lasers; time division multiplexing; video and audio discs; 60 min; 670 nm; CLV disk; FDM; MUSE videodisc; TDM; audio signals; fine played-back image; frequency-division multiplexed PCM; low error rate; multiple sub-Nyquist sampling encoding; objective lens; playback time; pulse code modulation; recording density; signal-to-noise ratio; time-division multiplexed PCM; video disc; visible-laser diode; Apertures; Diodes; Disk recording; Encoding; Lenses; Phase change materials; Pulse modulation; Sampling methods; Signal to noise ratio; Video recording;
Journal_Title :
Consumer Electronics, IEEE Transactions on
