TYPING WITH A TOUCH SENSOR
First Claim
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1. A method comprising the steps of:
- a. examining a human hand with respect to sensor surface and periodically producing first indications regarding the nature and position of sensed contacts, the contacts comprising identified hand parts;
b. evaluating the first indications to determine if two or more hand parts activate the sensor surface substantially simultaneously, and producing second indications identifying any such hand parts;
c. evaluating the first indications to determine if the character of sensed contacts is consistent with typing and producing third indication identifying such typing in response thereto;
d. evaluating second indications and third indications and making corrections regarding the third indication based upon the second indication, but only if the second indication identifies fingers.
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Abstract
Apparatus and methods are disclosed for simultaneously tracking multiple finger and palm contacts as hands approach, touch, and slide across a proximity-sensing, multi-touch surface. Identification and classification of intuitive hand configurations and motions enables unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting into a versatile, ergonomic computer input device.
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Citations
20 Claims
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1. A method comprising the steps of:
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a. examining a human hand with respect to sensor surface and periodically producing first indications regarding the nature and position of sensed contacts, the contacts comprising identified hand parts;
b. evaluating the first indications to determine if two or more hand parts activate the sensor surface substantially simultaneously, and producing second indications identifying any such hand parts;
c. evaluating the first indications to determine if the character of sensed contacts is consistent with typing and producing third indication identifying such typing in response thereto;
d. evaluating second indications and third indications and making corrections regarding the third indication based upon the second indication, but only if the second indication identifies fingers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15)
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11. A method comprising the steps of:
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e. examining a human hand with respect to sensor surface and periodically producing first indications regarding the nature and position of sensed contacts, the contacts comprising identified hand parts;
f. evaluating the first indications to determine if two or more hand parts activate the sensor surface substantially simultaneously, and producing second indications identifying any such hand parts;
g. evaluating the first indications to determine if the character of sensed contacts is consistent with typing;
h. evaluating second indications and third indications and if the second indication does not identify fingers, producing a third indication identifying the typing.
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16. A sensing apparatus comprising:
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i. a contact identification unit that examines a human hand with respect to a sensor surface and periodically produces first indications regarding the nature and position of sensed contacts, the contacts comprising identified hand parts;
j. a simultaneous contact unit that evaluates the first indications to determine if two or more hand parts activate the sensor surface substantially simultaneously and that produces second indications identifying any such hand parts;
k. a typing unit that evaluates the first indications to determine if the character of sensed contacts is consistent with typing and produces third indications based thereon;
l. a result production unit that evaluates second indications and third indications and determines an action based thereon. - View Dependent Claims (17, 18, 19, 20)
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Specification