No, we won’t be discussing who sent it.
Remote Locator Systems, LLC, a generic company incorporated in East Texas, filed a lawsuit against seven defendants recently for allegedly violating one of its patents. That patent can be found here. They've also filed against Google, Apple, T-Mobile, Verizon, and AT&T.
The gist is this - some company in the late 90's thought up the idea of equipping an entire hospital with IR receivers and then putting IR blasters on every employee and important piece of equipment.