Buy DV machine is PLA’s is good, or NTSC standard formats to you?
Category: Computer and Digital Digital Products
Question:
to buy DV machine is PLA’s is good, or NTSC standard formats to you? What is the PLA standard, what is the NTSC format please describe. Thanks!
Answer:
present, the world is actually used in NTSC color television broadcasting system, PAL system and SECAM system, this three kinds of color television standard.
1 NTSC system
NTSC system, also known as the TU system. It belongs to the same time, the system is the United States in December 1953 developed the first successful, and to the United States National Television System Committee (National Television System Committee) named after the abbreviation. This format chrominance signal modulation is characterized by a balanced quadrature amplitude modulation system, which includes a balance of two kinds of modulation and quadrature modulation, although the solution of the color TV and black and white television compatibility issues, but there are easy phase distortion, color is not stability shortcomings. NTSC TV system, the power supply frequency is 60Hz, field frequency of 60 fields per second, 30 frames per second frame ra…
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