OTHERS
Terms
525/60
A scan system with 525 horizontal lines and 60 interlacing fields (30 frames) per second. Applied by NTSC.
625/50
A scan system with 625 horizontal lines and 50 interlacing fields (25 frames). Applied by PAL and SECAM.
ANALOG
A level theoretically changes infinitely in time and space. As compared to DIGITAL.
ANGLE
A specific view of a scene recoded from a specific angle in
CD
Abbreviation for Compact Disc. A laser disc storage format developed by Philips and Sony.
CD-DA
Abbreviation for Compact Disc Digital Audio. The original music CD format storing audio information as digital PCM data.
CD-R
The extension of the CD format. Data can be recorded once by utilizing coloring matter subliming technology.
The extension of the
CHAPTER
Sections of a picture or a music piece on a DVD that are smaller than titles. A title is com posed of several chapters. Each chapter is assigned a chapter number enabling you to locate the chapter you want.
COMPRESSION
A process which eliminates redundancy of digital data to reduce the necessary storing or transmitting data size. Lossless compression only eliminates the enough redundancy to make date restore correctly. Lossy compression sacrifices the additional data to achieve a larger compression.
CONTRAST
The range between the brightest and the darkest of an image.
DAC 
Digital-to-analog
A circuit converting the digital data (audio or video) to analog data.
DIGITAL
Expressed by numerals. For example, a computer utilized a group of discrete numeric values. The analog data can be digitized by sampling.
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