“DTV” is a general reference to Digital Television, as compared to “analog” Television. DTV broadcasts can be either HDTV (high-definition television) or SDTV (standard-definition television). HDTV can broadcast at resolutions typically as high as 1920 by 1080 pixels (2 million pixels), whereas the resolutions of SDTV broadcasts are typically only as high as 640 by 480 pixels (290,000 pixels).
In comparison, analog television produces a total of about 210,000 pixels. Broadcasters and cable providers can choose which format of DTV they transmit, and most DTVs and new HDTV set-top boxes will be able to receive the signal regardless of which format is transmitted. Note, however, that your standard analog TV set will not be able to receive DTV signals (neither HDTV nor SDTV).
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SECAM Video Format Explainedompagnie Française de Télévision (later bought by Thomson) invented SECAM. SECAM uses the same resolution as PAL (625 lines) but transmits the color information sequentially: R-Y on one line and B-Y on the next.
PAL Video Format ExplainedAL is a color encoding system used in broadcast television systems in large parts of the world. The PAL TV standard came into the market in early 1960s Europe. The term PAL describes any video, including digital video, formatted for playback on a PAL TV.
NTSC Video Format ExplainedThe NTSC is responsible for setting television and video standards used in North America, most of South America, and some other countries. The NTSC standard for television defines a composite video signal with a refresh rate of 30 interlaced frames per second. Each frame contains 525 lines and can contain 16 million different colors
What is MESECAM?MESECAM stands for Middle Eastern Secam. MESECAM is not a broadcast standard.
What is PAL 60?PAL-60 is NTSC with the chroma part converted to PAL (both encoding and subcarrier frequency, 4.43 MHz).
What is the difference between NTSC, PAL, SECAM?There are 3 main analog video standards in use around the world.
PAL (Phase Alternating Line)
NTSC (National Television System Committee)
SECAM (Séquentiel couleur à mémoire – Sequential Color with Memory)
Each standard is incompatible with the other two.
