SECAM stands for Séquentiel couleur à mémoire, which translates to Sequential Color with Memory in English. It is a television broadcast and display standard that was initially developed in France in the 1960s. SECAM is primarily used in countries such as France, Russia, some parts of Africa, and other Eastern European nations.
SECAM is a color encoding system used to transmit and display analog video signals. It is an alternate method to the more widely known PAL and NTSC systems. Unlike PAL or NTSC, which use a frequency modulation technique, SECAM utilizes a sequential method to encode images in order to provide full color representation.
In the SECAM system, the color information is transmitted sequentially, with lines of the image being divided into two fields. These fields contain alternate lines of two different colors. The receiver then combines these fields to create a full-color image. This sequential transmission of color information helps to minimize color bleeding and improve color accuracy in the displayed image.
SECAM has a total of three different variations: SECAM B/G, SECAM D/K, and SECAM L/L'. Each variation is defined by the frequency range used for broadcasting in different regions. While SECAM has been widely phased out in favor of digital television formats such as DVB, it still remains in use in certain parts of the world.
Overall, SECAM is a color encoding system used for analog television broadcast, known for its sequential color information transmission that enhances color accuracy and reduces color bleeding in the displayed image.
