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Multi-nodal SPD controller networking

DC
  • US 9,658,509 B2
  • Filed: 01/04/2016
  • Issued: 05/23/2017
  • Est. Priority Date: 09/08/2005
  • Status: Active Grant
First Claim
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1. A multiplicity of controllers communicatively coupled to each other, one or more of which controls the opacity of at least one respective SPD, any one or more of the multiplicity of controllers capable of sending a message containing an opacity value to the one or more controllers controlling the opacity of at least one SPD, to cause the one or more controllers controlling the opacity of at least one SPD, to change the opacity value of the at least one SPD.

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