Contactless tactile feedback on gaming terminal with 3D display
An electronic gaming machine (EGM) includes a display having a display surface configured to provide stereoscopic 3D viewing of at least a portion of the game. The portion of the game includes a 3D interface element. The EGM further includes a locating sensor that generates an electronic signal based on a player's location in a sensing space. The EGM includes an ultrasonic emitter configured to emit an ultrasonic field. At least a portion of the ultrasonic field is located in the sensing space. The EGM also includes one or more processors configured to: identify a location of one or more player features based on the electrical signal from the locating sensor; determine that the location of the player features is associated with the 3D interface element; and control one or more of the ultrasonic emitters based on the identified location to provide tactile feedback to the player.
1. An electronic gaming machine for providing a game to a player, the electronic gaming machine comprising:
a display having a display surface, the display being configured to provide stereoscopic three dimensional viewing of at least a portion of the game, the portion of the game including a three dimensional interface element for activation by the player;
a locating sensor comprising a stereoscopic camera, the locating sensor generating an electronic signal based on a player's location in a sensing space, the sensing space including a region adjacent to the display surface;
at least one ultrasonic emitter configured to emit an ultrasonic field when the ultrasonic emitter is activated, at least a portion of the ultrasonic field being located in the sensing space, the ultrasonic field providing a pressure differential detectible by a human hand, wherein the at least one ultrasonic emitter comprises a plurality of ultrasonic transducers; and
one or more processors coupled to the display, the locating sensor and the plurality of ultrasonic emitters, the processor configured to:
identify a location of one or more player features based on the electrical signal from the locating sensor;
determine that the location of the one or more player features is associated with the three dimensional interface element;
determine a distance to one or more of the player features based on stereoscopic camera data generated by the stereoscopic camera; and
control one or more of the ultrasonic emitters based on the identified location to provide tactile feedback to the player by causing each of the ultrasonic transducers in the ultrasonic emitter to emit ultrasonic waves with a phase delay so that ultrasonic waves from multiple transducers arrive at the location of the one or more player features concurrently and by controlling a strength of an ultrasonic field associated with one or more of the ultrasonic emitters based on the distance.
2. The electronic gaming machine of claim 1 , wherein at least one of the ultrasonic emitters is adjacent the display and is angled relative to the display such that the ultrasonic emitter faces a point which is generally above the display surface of the display.
3. The electronic gaming machine of claim 2 , wherein the ultrasonic emitter is positioned to emit an ultrasonic field that is centered about a centerline that extends overtop the display surface.
4. The electronic gaming machine of claim 1 , wherein the display surface is substantially rectangular having four sides and wherein the ultrasonic emitters include at least four ultrasonic emitters and wherein each side of the display surface has at least one ultrasonic emitter positioned adjacent that side.
5. The electronic gaming machine of claim 1 , wherein controlling one or more of the ultrasonic emitters based on the location comprises controlling the ultrasonic emitter to provide a pressure differential at the identified location.
6. The electronic gaming machine of claim 1 , wherein at least one of the ultrasonic emitters is located under the display such that the ultrasonic emitter faces a back side of the display and wherein the ultrasonic emitter is positioned to emit an ultrasonic field in the direction of the display, the display being a thin display to permit the ultrasonic field to pass through the display and into at least a portion of the sensing space.
7. The electronic gaming machine of claim 1 , wherein the one or more player features include a player hand feature and wherein identifying a location comprises identifying a location of the player hand features.
8. The electronic gaming machine of claim 7 wherein the player hand feature is a finger.
9. The electronic gaming machine of claim 7 wherein controlling the one or more ultrasonic transmitters comprises providing the tactile feedback at the location associated with the player hand feature.
10. The electronic gaming machine of claim 9 , wherein the location of the player hand feature is a location presently occupied by the player's hand.
11. The electronic gaming machine of claim 9 , wherein the location of the player hand feature is a location in a path of travel of the player's hand that is determined based on a trajectory-based analysis of movement of the player's hand.
12. The electronic gaming machine of claim 7 , wherein the one or more processors are further configured to adjust the display based on camera data generated by the camera to provide the stereoscopic three dimensional viewing.
13. The electronic gaming machine of claim 1 , wherein the locating sensor comprises a touchscreen or a hover-sensitive display which generates an electronic signal based on the location of a hand.
14. The electronic gaming machine of claim 1 , further comprising:
an orientation sensor generating an orientation signal based on the orientation of the electronic gaming machine,
and wherein the one or more processors are configured to use the orientation signal when determining that the location of the one or more player features is at a location associated with the three dimensional interface element.
15. A method for providing contactless feedback to a player at an electronic gaming machine, the method comprising:
identifying a location of one or more player features using data from a locating sensor comprising a stereoscopic camera;
determining that the location of the one or more player features is associated with a three dimensional interface element;
determining a distance to one or more of the player features based on stereoscopic camera data generated by the stereoscopic camera; and
controlling one or more ultrasonic emitters based on the identified location to provide tactile feedback to the player, wherein the one or more ultrasonic emitters each comprise a plurality of ultrasonic transducers, and wherein controlling the one or more ultrasonic emitters comprises causing ultrasonic transducers in the one or more ultrasonic emitters to emit ultrasonic waves with a phase delay so that ultrasonic waves from multiple transducers arrive at the location of the one or more player features concurrently and control a strength of an ultrasonic field associated with one or more of the ultrasonic emitters based on the distance.
16. The method of claim 15 , wherein at least one of the ultrasonic emitters is adjacent a display and is angled relative to the display such that the ultrasonic emitter faces a point which is generally above a display surface of the display.
17. The method of claim 16 , wherein the ultrasonic emitter is positioned to emit an ultrasonic field that is centered about a centerline that extends overtop the display surf ace.
18. The method of claim 16 , wherein the display surface is substantially rectangular having four sides and wherein the ultrasonic emitters include at least four ultrasonic emitters and wherein each side of the display surface has at least one ultrasonic emitter positioned adjacent that side.