The CRC (cyclic redundancy check) was primarily an error detector, but it did allow some early error correction systems to be implemented.
There are many different CRCs but they all work in much the same way, which is that the data to be protected are divided by the CRC polynomial.
The mathematics of finite fields and sequences seems to be a long way from everyday life, but it happens in the background every time we use a computer and without it, an explanation of modern error correction cannot be given.
Following the myriad of transitions in media production and distribution, is a combination of new technologies that create media and ones that support the consumption of media. Since the creation of media is mostly intended for the audience, the technologies needed to create the media are pretty important even while
Here we look at one of the first practical error-correcting codes to find wide usage. Richard Hamming worked with early computers and became frustrated when errors made them crash. The rest is history.
While I am not one to wax nostalgic, the last decade was a pretty exciting one in media technology. HD-SDI came into its own in the early aught (00) years, mobile and wireless media, OTT and streaming all became mainstream. IP and file based media production was introduced and standardized (SMPTE