SURPRISE:

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SURPRISE

• PEOPLE STILL USE PEN AND PAPER!!

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SOLUTION
SMART ERASER
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DESIGN

• Eraser material
• 3 States
• OFF
• READ
• WRITE
• Simple and attractive

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COMPONENTS

• Mini camera
• - diodes
• Chip
• - memory buffer
• - software
• Small printer
• - pins / ink jets

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POWER CONSIDERATIONS

• Only needed to set the pins for the next image.
• The pressure exercised on the eraser can be used
  to push them back.
• Battery watch ??

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PERFORMANCE

• Data resolution 200 dots/inch
• Sampling rate 200 ?/sec
• Duty cycle 0.5
• Memory depends on the amount of information we
  want be able to store from one line to whole
  day work up to 2MB.

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Pricekeep as low as possible

• Camera 1.50
• Chip 0.25
• Printer 1.50

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Subject testing