According to these documents[1], Masimo applied for patents after Apple had already independently developed the software. So it appears that Masimo is in fact,

According to these documents[1], Masimo applied for patents after Apple had already independently developed the software. So it appears that Masimo is in fact, a patent troll. [1] https://ipfray.com/u-s-trade-agency-itc-incredibly-portrays-apple-as-unrepentant-infringer-despite-masimo-clearly-abusing-patents/ https://ipfray.com/u-s-trade-agency-itc-incredibly-portrays-...