Digitizer
First Claim
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1. A system for receiving, storing, and displaying biometric input comprising:
- a. a touchpad having a touchscreen adapted for receiving input by contact with the touchscreen, detecting the input, storing the input as touchpad data in memory, and visually displaying the input on the touchscreen; and
b. a digitizer comprising;
i. a substantially transparent touch activatable overlay placed over the touchscreen;
ii. a plurality of sensors supported by the overlay to detect input to the overlay; and
iii. a data outlet for transferring the detected input as overlay data so the touchpad can visually display the detected input on its touchscreen,wherein the digitizer has a higher sampling rate than the touchpad sampling rate and wherein there are sufficient sensors that the overlay data contains more information than the touchpad data would if the touchscreen were contacted directly without the digitizer present.
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Abstract
A system for receiving, storing, and displaying biometric input has a touchpad and a digitizer. The digitizer comprises a substantially transparent touch activatable overlay placed over the touchscreen and a plurality of sensors supported by the overlay to detect input to the overlay. The digitizer includes a data outlet for transferring the detected input as overlay data so the touchpad can visually display the detected input on its touchscreen. The digitizer has sufficient sensors that the overlay data contains more information than the touchpad data would if the touchscreen were contacted directly without the digitizer present.
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Citations
12 Claims
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1. A system for receiving, storing, and displaying biometric input comprising:
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a. a touchpad having a touchscreen adapted for receiving input by contact with the touchscreen, detecting the input, storing the input as touchpad data in memory, and visually displaying the input on the touchscreen; and b. a digitizer comprising; i. a substantially transparent touch activatable overlay placed over the touchscreen; ii. a plurality of sensors supported by the overlay to detect input to the overlay; and iii. a data outlet for transferring the detected input as overlay data so the touchpad can visually display the detected input on its touchscreen, wherein the digitizer has a higher sampling rate than the touchpad sampling rate and wherein there are sufficient sensors that the overlay data contains more information than the touchpad data would if the touchscreen were contacted directly without the digitizer present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for use with a touchpad having a touchscreen adapted for receiving input by contact with the touchscreen, detecting the input, storing the input as touchpad data in touchpad memory, and visually displaying the input, the device comprising:
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a. a substantially transparent touch activatable overlay for placement over the touchscreen; b. a plurality of sensors supported by the overlay to detect the input to the overlay; and c. a data outlet for transferring the detected input as overlay data so the touchpad can visually display the detected input on its touchscreen, wherein the digitizer has a higher sampling rate than the touchpad sampling rate and wherein there are sufficient sensors that the overlay data contains more information than the touchpad data would if the touchscreen were contacted directly without the device present. - View Dependent Claims (10, 11, 12)
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Specification