ShadowSense vs. Ambient Lighting

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ShadowSense vs Ambient Lighting
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IR-based Touchscreen Techonologies Ambient
Lighting Rejection

• IR-based touchscreen technologies offer many
  advantages, as you may be aware, most infrared
  touchscreens do not do well in outdoor
  environments as the sun is a strong source of IR
  radiation.
• In addition, most IR-based touchscreen
  technologies also suffer from interference due to
  ambient lighting and indoor lights.
• These light sources have been known to saturate
  competing IR sensor technology products which
  ultimately degrades their performance.

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ShadowSense vs. The Competitor

• In a side-by-side comparison, we place a 500-watt
  halogen light over both a ShadowSense touchscreen
  panel and a competitors IR touchscreen panel.
• You will see that the standard IR touchscreen
  that uses beam break fails catastrophically.
  However, ShadowSense works seamlessly and without
  flaw.
• You might be asking yourself, how is this
  possible?
• Beam break technologies utilize a number of IR
  beams, constituting LEDs and detectors.
• The LED shines the light, and when an object
  blocks the light ie. A touch on a touchscreen
  the beam would then be broken. The change in
  light is picked up by the detector and a touch
  event can be processed.
• But, in a brightly lit or sunlit environment,
  the immense amount of light pollution coming in
  from an external source ultimately leaks into the
  detector causing it to lose the breaking of the
  beam. The sun overpowers the LED and the detector
  does not function properly.

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What makes ShadowSense different?

• Baantos ShadowSense architecture is entirely
  immune to light pollution due to the nature of
  its patented technology.
• Did you know that Baantos ShadowSense has been
  granted 27 patents and has over 76 filed across
  nine different patent families?
• Our sensors operate in the analog domain, and our
  LEDs strobe with a specific signal frequency.
• Using hardware bandpass filters and tuner
  circuits at the sensor level, we can tune out all
  ambient interferences and focus only on the
  actual touch signal.
• Lets simplify this a little more think of how
  you can tune into a specific station on your
  radio while ignoring all the other transmissions
  on other frequencies.

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• Where ShadowSense differs is that we have our
  ShadowSensors and LEDs placed everywhere.
• Now instead of just turning on the LEDs, we
  blink/modulate them.
• These LEDs are modulated at a two-megahertz
  frequency, resulting in us looking for the
  flickering shadow.
• Going back to our patent portfolio, we have a
  tuner circuit at every detector tuning into the
  two-megahertz frequency.
• We really are tuning into a flickering shadow
  that is not created by any other light source.
  The result room lights, sunlight and all the
  lights that generally attribute to light
  pollution in a touchscreen environment are
  eliminated.
• Interested in learning more about how Baanto
  ShadowSense can help you? Get in touch with us
  today!

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THANK YOU!

• Visit Us For More Info https//baanto.com/shadows
  ense-vs-ambient-lighting/