PARAMETRIC TRANSDUCER INCLUDING VISUAL INDICIA AND RELATED METHODS

摘要

A visual indicator is incorporated into an ultrasonic emitter/sound system for ultrasonic carrier audio applications. The visual indicator can be utilized to ensure that an orientation of the ultrasonic emitter is appropriate relative to a position of an intended target of the audio modulated ultrasonic carrier signal, or that a listener is appropriately located relative to the ultrasonic emitter such that it can receive a targeted audio transmission.

主权项

1. An ultrasonic audio speaker, comprising:
a backing plate; a flexible layer disposed adjacent the backing plate, the backing plate and the flexible layer each configured to be electrically coupled to a respective one of a pair of signal lines carrying an audio modulated ultrasonic carrier, wherein upon application of the audio modulated ultrasonic carrier, the flexible layer is configured to launch a pressure-wave representation of the audio modulated ultrasonic carrier signal into the air; and a visual indicator configured to provide visual feedback indicative of an orientation of the ultrasonic audio speaker relative to a position of an intended target of the audio modulated ultrasonic carrier signal.