KEY INPUT DEVICE, KEY INPUT RECOGNITION DEVICE, AND KEY INPUT SYSTEM USING SAME
First Claim
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1. A key input device comprising:
- sound keys chat respectively generate different unique sounds when keys are pressed; and
a body where the sound keys are arranged,wherein the sound keys include a sound generator that generates discriminative unique sounds respectively in accordance with a physical change when being pressed and returned.
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Abstract
The present invention relates to a key input device that allows a key input recognition device to recognize key making input through the key input device even without a specific power, a key input recognition device, and a key input system using them. A plurality of key generating different sounds in physical way is provided, so it is possible to discriminately recognized in accordance with sounds generated in input even without a power, and accordingly, free key input is possible without a communication or electric limit.
18 Citations
13 Claims
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1. A key input device comprising:
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sound keys chat respectively generate different unique sounds when keys are pressed; and a body where the sound keys are arranged, wherein the sound keys include a sound generator that generates discriminative unique sounds respectively in accordance with a physical change when being pressed and returned. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A key input recognition device comprising:
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a microphone that receives a sound; a sound input processor that discriminates of predetermined unique sounds of sound keys from sounds received by the microphone, recognizes the kinds of the keys, and determines that input has been made through the keys; and a controller that performs a process of processing the key input in accordance with the determination result by the sound input processor. - View Dependent Claims (9, 10, 11, 12)
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13. A key input system comprising:
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a key input device that includes sound keys respectively generating different unique sounds when keys are pressed; and a key input recognition device that receives sounds generated by the sound keys through a sound sensor when input is made through the key input device, discriminately recognizes the unique sounds of the sound keys from received sounds, and determines that input has been made through the keys and processes corresponding key input.
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Specification