| CPC G08B 6/00 (2013.01) [B06B 1/06 (2013.01); G06F 3/016 (2013.01); G08B 21/22 (2013.01)] | 18 Claims |

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1. An apparatus comprising:
an ultrasonic actuator configured to provide haptic stimulation to a part of a body located at a target location by:
generating an ultrasonic signal; and
forming sound pressure at the target location via the generated ultrasonic signal;
an object sensor provided around the ultrasonic actuator and configured to detect an object within a region between the ultrasonic actuator and the target location; and
a control module configured to stop operation of the ultrasonic actuator based on detecting the object within the region.
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