C\I  •  - LL  N  Q,)  a.  E  ca  X  w  0  ~  0  ~  0  0  C?  0  I/’)  C\I  0  0  C\I  .:lll- 0  Lt’)  1  ~  ~  r  t  -’  -$_{I’-.~ }$ ◄~  0  0  )  0  ~  0  0  0)  0  0::,  0  ,..._  0  <O  0  U’),---.,  0  C?  0  C\I  0  0  0  .__.,,,  U.S.  Patent  Sheet  2 of 9  Apr.  11, 2017  US  9,617,395  B2 