Patent ID: 8085141

Claim:
A self-diagnostic acoustic wave touch actuated switch assembly comprising: a substrate including an acoustic wave cavity having a touch surface; a housing integrally connected to said substrate, wherein said housing extends over, under, or around said acoustic wave cavity to define a perimeter, said housing configured to be inserted into a panel such that said perimeter defined by said housing is disposed in said panel while said touch surface of said substrate is disposed outside said panel; a transducer operatively connected to said acoustic wave cavity and disposed within said perimeter that is defined by said housing, said transducer configured to generate a trapped acoustic wave within said acoustic wave cavity; a processing unit operatively connected to at least one of said acoustic wave cavity or said transducer, said processing unit being secured within said perimeter that is defined by said housing; and at least one light emitting member operatively connected to said processing unit, said at least one light emitting member being directly fixed to said substrate proximate to said transducer within said perimeter that is defined by said housing, wherein said processing unit activates or deactivates said at least one light emitting member depending on an operating condition of the switch assembly.