The pulse width appears to be 1000us in one position and 2000us in the other.
That's normal.
They said it was 'proprietary information'...
I don't know what is proprietary about this. :~
Wondering if I could use a PIC for this?
Of course you could, but in that case you'll have to move this thread to the PIC forum 
If you are happy to use a processor any AVR will do this easily.
If not then the hardware comparator idea should work or another idea is to use a one-shot timer (say a 555) set to 1500uS and a gate to clock a flip flop.
Rob