Analog Television System
- ATSC June 12, 2009 replaced NTSC (completed in Canada by August 31, 2011)
- Used in North America, South America, Burma, South Korea, Taiwan, Japan, Philipines
- 1941 first system developed (black and white, no color)
- 1953 second modified version adopted, compatible with existing stock of B/W TV's
- NTSC was vastly replaced by ATSC June 12, 2009 (and completed in Canada by August 31, 2011)
- To Be Filed
- French for Sequentiel Couleur A Memoire (Sequential Color With Memory).
- Analog color television system (The first used in France, and as a result the first in Europe)
- Designed by Henri de France team at Compagnie Francaise de Television (later baought by Thompson)
- SECAM is a compatible system with the predated monochrome black and white (y = luminance)
- A second signal using frequency modulation is added with color infomation (c = chrominance)
- Red and Blue are sent separately (hence the "memory" with one line of information at a time
- 5 Varieties
- SECAM (SECAM-L) French
- SECAM-B/G is/was used in the Middle East, former East Germany and Greece
- SECAM D/K is used in the Commonwealth of independent states and parts of Eastern Europe
- SECAM-H around 1983/84 Line SECAM or SECAM-H introduced a new color identiication scheme
- SECAM-K French speaking African and oversees companies