Input display device
An input display device for is provided displaying a floating image by utilizing retroreflection, and includes circuitry configured to detect a first event in which an operating object comes in proximity to the floating image, detect a second event in which the operating object moves away from the floating image, output a first sound signal in response to detection of the first event, and output a second sound signal in response to detection of the second event.
1 . An input display device for displaying a floating image by utilizing retroreflection, comprising circuitry configured to:
detect a first event in which an operating object comes in proximity to the floating image;
detect a second event in which the operating object moves away from the floating image;
output a first sound signal in response to detection of the first event;
output a second sound signal in response to detection of the second event;
measure a duration of a condition in which the operating object is in the proximity to the floating image in response to the detection of the first event; and
cause the first sound signal to fade out when the measured duration is shorter than a playback length of the first sound signal.
2 . The input display device according to claim 1 , wherein the first sound signal is different from the second sound signal.
3 . The input display device according to claim 1 , wherein the circuitry includes a first sound source configured to generate the first sound signal, and a second sound source configured to generate the second sound signal.
4 . The input display device according to claim 1 , wherein the circuitry is configured to set a silent duration between an output of the first sound signal and an output of the second sound signal.
5 . The input display device according to claim 1 , wherein the circuitry is configured to insert a silent duration between the faded-out first sound signal and the second sound signal, and output the second sound signal after the silent duration.
6 . An input display device for displaying a floating image by utilizing retroreflection, comprising circuitry configured to:
detect a first event in which an operating object comes in proximity to the floating image;
detect a second event in which the operating object moves away from the floating image;
output a first sound signal in response to detection of the first event;
output a second sound signal in response to detection of the second event;
measure a duration of a condition in which the operating object stays away from the floating image in response to the detection of the second event; and
cause the second sound signal to fade out when the measured duration is shorter than a playback length of the second sound signal.
7 . The input display device according to claim 6 , wherein the circuitry is configured to insert a silent duration between the faded-out second sound signal and the first sound signal, and the circuitry is configured to output the first sound signal after the silent duration.
8 . The input display device according to claim 6 , wherein the first sound signal is different from the second sound signal.
9 . The input display device according to claim 6 , wherein the circuitry includes a first sound source configured to generate the first sound signal, and a second sound source configured to generate the second sound signal.
10 . The input display device according to claim 6 , wherein the circuitry is configured to set a silent duration between an output of the first sound signal and an output of the second sound signal.