Acoustic user interface apparatus and method for recognizing touch and rubbing
AssigneeHyundai Motor Company
InventorsKwang Myung OH, Sung Jin SAH, Sung Min PARK, Hui Sung LEE
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Abstract
An acoustic user interface apparatus and method can provide a sense of physical touch depending on the press or restoration and improve the accuracy of direction recognition of a touch or rubbing without any complicated algorithm by detecting and analyzing the sound wave, which is generated by the collision of a bump formed in a top plate or bottom plate when touching or rubbing, using one microphone.
Claims18
An acoustic user interface apparatus comprising:
- a first substrate;
- a second substrate including touch cells which are pressable by a touch and restorable by an elastic force, and are arranged in two dimensions;
- and
- a bump which is disposed on each of the touch cells to be apart from the first substrate by a predetermined distance, respectively, or is disposed on each of corresponding positions of the first substrate to be apart from the touch cells by a predetermined distance, respectively.
An acoustic user interface method for generating a position signal by distinguishing a sound wave of a touch portion according to a position, the method comprising:
- generating a sound wave from a portion collided with a first substrate when touching a second substrate including touch cells which are pressable by a touch and restorable by an elastic force, and are arranged in two dimensions;
- wherein a bump is formed on each of the touch cells to be apart from the first substrate by a predetermined distance, respectively, or is formed on each of corresponding positions of the first substrate to be apart from the touch cells by a predetermined distance, respectively, and the bump is collided with the first substrate to generate the sound wave.
Dependencies are inferred from the claim text.