Is HDMI timecode LTC?

[lutzray]

Again, mad physicist exploring TC world here. 😁

 

Is HDMI timecode LTC and is it using Consumer Electronics Control (CEC) pin bus? Or maybe Pin 17?

 

I understand timecode over HDMI is a hack introduced by Atomos almost ten years ago and then adopted by many manufacturers but can't find any technical details about it... any pointer? [EDIT: or is it SONY with the FS100? as discussed here on jwsd]

 

Thanks in advance...

 

Fun fact: looking around I learned Atomos under CEO J. Young was a shitty place to work at.

 

PS: I'm referring to pin 17 as "Utility/HEAC+" signal, defined in HDMI 1.4+ version. This signal moves from pin to pin depending on connector type 🤨