SMPTE 344M
Encyclopedia
"SMPTE 344M" is a standard
Standardization
Standardization is the process of developing and implementing technical standards.The goals of standardization can be to help with independence of single suppliers , compatibility, interoperability, safety, repeatability, or quality....

 published by SMPTE which expands upon SMPTE 259M
SMPTE 259M
SMPTE 259M is a standard published by SMPTE which "... describes a 10-bit serial digital interface operating at 143/270/360 Mb/s." The goal of SMPTE 259M is to define a Serial Digital Interface , called SDI or SD-SDI....

 allowing for bit-rates of 540 Mbit/s, allowing EDTV
EdTV
EDtv is a 1999 American comedy film directed by Ron Howard. An adaptation of the Quebec film Louis 19, le roi des ondes , it stars Matthew McConaughey, Jenna Elfman, Woody Harrelson, Ellen DeGeneres, Martin Landau, Rob Reiner, Sally Kirkland, Elizabeth Hurley, Clint Howard, and Dennis Hopper.The...

 resolutions of 480p and 576p.

This standard is part of a family of standards that define a Serial Digital Interface
Serial Digital Interface
Serial digital interface is a family of video interfaces standardized by SMPTE. For example, ITU-R BT.656 and SMPTE 259M define digital video interfaces used for broadcast-grade video...

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