The patents in question are <a href="https://patents.google.com/patent/US7949129B2/" rel="nofollow">https://patents.google.com/patent/US7949129B2/</a> and <a href="https://patents.google.com/patent/US8321675B2/" rel="nofollow">https://patents.google.com/patent/US8321675B2/</a>