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US 2015/0146896 A1Published application
Elevator system and method for implementing a sound system for an elevator
AssigneeKone Corporation
InventorsKari PAHKALA, Matti KUJALA
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Abstract
Improvement to a sound system for an elevator system and method for implementing the sound system for an elevator. The elevator sound system is improved by replacing at least one loudspeaker to be used in the sound system with a plate-like electrostatic actuator producing a directed sound field. The patent application also contains an independent claim for a method for implementing a sound system for an elevator.
Claims9
Improvement to a sound system for an elevator wherein at least one loudspeaker to be used in the sound system is replaced with a plate-like electrostatic actuator producing a directed sound field.
Dependencies are inferred from the claim text.