When was the first PAL format invented?
The format was patented by Telefunken in 1962, citing Bruch as inventor, and unveiled to members of the European Broadcasting Union (EBU) on 3 January 1963. When asked why the system was named “PAL” and not “Bruch” the inventor answered that a “Bruch system” would probably not have sold very well (“Bruch” is the German word for “breakage”).
What is the difference between PAL-N and PAL-M?
The PAL-N system has a different sound carrier, and also a different colour subcarrier, and decoding on incompatible PAL systems results in a black-and-white image without sound. The PAL-M system has a different sound carrier and a different colour subcarrier, and does not use 625 lines or 50 frames/second.
What is the difference between PAL-B/G/H and PAL-L?
The PAL L (Phase Alternating Line with L-sound system) standard uses the same video system as PAL-B/G/H (625 lines, 50 Hz field rate, 15.625 kHz line rate), but with 6 MHz video bandwidth rather than 5.5 MHz. This requires the audio subcarrier to be moved to 6.5 MHz. An 8 MHz channel spacing is used for PAL-L.
What is the frequency difference between PAL and NTSC?
Like NTSC, PAL uses a quadrature amplitude modulated subcarrier carrying the chrominance information added to the luma video signal to form a composite video baseband signal. The frequency of this subcarrier is 4.43361875 MHz for PAL 4.43, compared to 3.579545 MHz for NTSC 3.58.
What is the difference between PAL and NTSC?
Both PAL and NTSC have a higher frame rate than film which uses 24 frames per second. PAL has a closer frame rate to that of film, so most films are sped up 4\% to play on PAL systems, shortening the runtime of the film and, without adjustment, slightly raising the pitch of the audio track.
https://www.youtube.com/watch?v=7tWwwAa-Tb8