A light field (LF) display system presents holographic content to one or more viewers in a public setting for digital signage applications. In some embodiments, the LF display system includes a sensory feedback assembly, a tracking system and/or a viewer profiling module. The sensory feedback assembly may comprise sensory feedback devices that provide sensory feedback to viewers of the LF display system in tandem with the presented holographic content. The tracking system may comprise cameras used to track the viewers of the LF display system. Based on a viewer's tracked position and/or tracked gaze, the LF display system may generate holographic content that is perceivable by certain viewers but not viewable by others. The viewer profiling module may identify each viewer for providing personalized holographic content and may further monitor and record behavior of viewers for informing subsequent presentations of holographic content by the LF display system.

A reflection is captured of a subsonic signal reflected by a contact surface. The contact surface is contacting a simulated surface of an object projected from a midair interface (MAI) device. A difference between the subsonic signal and the reflection is converted into a measurement of a flow in the contact surface. When the measurement is in a range of measurements, a change is caused in a temperature of a volume of a medium, the simulated surface being projected in volume of the medium, where the change in the temperature causes a second change in the flow in the contact surface.

The disclosure is directed to simulating forces using holographic objects. A method according to embodiments includes: generating an invisible holographic object, the invisible holographic object providing a haptic effect; displaying a visible holographic object; aligning the visible holographic object and the invisible holographic object to provide a visible and touchable combined holographic object, the combined holographic object providing the haptic effect; applying a force to the combined holographic object, the applied force causing a displacement of the combined holographic object and including an amplitude and direction; and adjusting the haptic effect of the combined holographic object to generate an adjusted haptic effect representative of an effect of the applied force on the combined holographic object.

The disclosure is directed to simulating forces using holographic objects. A method according to embodiments includes: generating an invisible holographic object, the invisible holographic object providing a haptic effect; displaying a visible holographic object; aligning the visible holographic object and the invisible holographic object to provide a visible and touchable combined holographic object, the combined holographic object providing the haptic effect; applying a force to the combined holographic object, the applied force causing a displacement of the combined holographic object and including an amplitude and direction; and adjusting the haptic effect of the combined holographic object to generate an adjusted haptic effect representative of an effect of the applied force on the combined holographic object.

A light field (LF) display system presents holographic content to one or more viewers in a public setting for digital signage applications. In some embodiments, the LF display system includes a sensory feedback assembly, a tracking system and/or a viewer profiling module. The sensory feedback assembly may comprise sensory feedback devices that provide sensory feedback to viewers of the LF display system in tandem with the presented holographic content. The tracking system may comprise cameras used to track the viewers of the LF display system. Based on a viewer's tracked position and/or tracked gaze, the LF display system may generate holographic content that is perceivable by certain viewers but not viewable by others. The viewer profiling module may identify each viewer for providing personalized holographic content and may further monitor and record behavior of viewers for informing subsequent presentations of holographic content by the LF display system.

Navigation applications may utilize various input data to offer route information and other suggested information. One example method may include initiating a navigation application on a first user device, identifying at least one destination of the navigation application, notifying a remote server of the at least one destination, receiving a first query from a second user device inquiring about the at least one destination, and transmitting a response comprising an identification of a first user profile associated with the first user device to the second user device.

Navigation applications may utilize various input data to determine various navigation routes. One example method of operating may include providing at least one navigation instruction to a navigation device via a navigation application, detecting the at least one instruction via a detection application, obtaining an image of a physical object, performing a holo-acoustic object manipulation of the physical object, and providing a visual display of the holo-acoustic manipulation as an additional navigation instruction.

Systems and methods for generating a controlled sound field. In one example, the system and method perform or include receiving a sound wave emitted from a sound source; determining, with an electronic processor, a pattern of at least one of an amplitude change and a phase change necessary to create a desired sound field using the sound wave; determining, with the electronic processor, a plurality of passive sound-modulating elements needed to generate the pattern of at least one of the amplitude change and the phase change; and constructing the plurality of sound-modulating elements to generate the controlled sound field.

Systems and methods for generating a controlled sound field. In one example, the system and method perform or include receiving a sound wave emitted from a sound source; determining, with an electronic processor, a pattern of at least one of an amplitude change and a phase change necessary to create a desired sound field using the sound wave; determining, with the electronic processor, a plurality of passive sound-modulating elements needed to generate the pattern of at least one of the amplitude change and the phase change; and constructing the plurality of sound-modulating elements to generate the controlled sound field.

Systems and methods for a camera system for imaging a diffuse medium such as mammalian tissue are provided herein. In one example, a camera system includes a light source configured to emit light, a first beam splitter positioned to split the emitted light into a reference beam and a transmission beam; an aperture though which the transmission beam traverses en route to an object, and where an object beam formed from light reflected off the object is configured to travel back through the aperture, a concave lens, a convex lens, a second beam splitter positioned intermediate the concave lens and the convex lens, and a detector. The detector is configured to receive at least a portion of the object beam and a portion of the reference beam to capture an image of an interference between the reference beam and the object beam.