Looks like some proprietary protocol over defacto UsARTs, with 10 or so stop bits.
These could be intentional or quasi random with a slow uC.
LIN is also used in car's (and works with (almost) standard Uarts, but it has a specific header and a "break" which is about 11 bit's long.
the 10k resistor goes to the RxD input.
The low value transistor and diode are are for output protection and diode or-ing / anding (depending on the direction).
You can have a bit more certainty by zooming in more and looking if the flanks of the individual bits lign up properly with the decoded data.
The next step is to figure out what those bits actually mean.
I'm curious:
What kind of hardware are you using with Pulseview/Sigrok, and how well does it work?
I only have some Cypress CY7C68013 boxes and these only do digital, your first yellow trace has noise and looks very analog
