Keypad with Electrotactile Feedback
First Claim
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1. An apparatus comprising:
- a keypad comprising a plurality of keys, where each of the plurality of keys has a top surface;
pressure sensors located under the top surfaces of the keys; and
electrotactile feedback electrodes located at the top surfaces of the keys.
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Abstract
An apparatus including a keypad, pressure sensors and electrotactile feedback electrodes. The keypad includes a plurality of keys. Each of the keys has a top surface. The pressure sensors are located under the top surfaces of the keys. The electrotactile feedback electrodes are located at the top surfaces of the keys.
71 Citations
25 Claims
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1. An apparatus comprising:
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a keypad comprising a plurality of keys, where each of the plurality of keys has a top surface; pressure sensors located under the top surfaces of the keys; and electrotactile feedback electrodes located at the top surfaces of the keys. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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providing a keypad having a main section and a plurality of keys extending up from the main section, where each of the keys comprises a top surface, and electrotactile feedback electrodes located at the top surfaces of the keys; and locating pressure sensors under the top surfaces of the keys. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method comprising:
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pressing on a top surface of a key of a keypad by a finger of a user, where the keypad comprises a main section and the key extends up from the main section, where the key comprises the top surface located above the main section; sensing pressure on the top surface of the key by a pressure sensor located under the top surface; and providing electrotactile feedback to the finger of the user by an electrode on the top surface of the key. - View Dependent Claims (23)
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24. A non-transitory program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine for performing operations, the operations comprising:
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sensing pressing on a top surface of a key of a keypad by a finger of a user by a pressure sensor located under the top surface, where the keypad comprises a main section and the key extends up from the main section, where the key comprises the top surface located above the main section; and providing electricity to an electrode on the top surface of the key to provide electrotactile feedback to the finger of the user. - View Dependent Claims (25)
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Specification