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Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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A Dual-Organic-Transistor-Based Tactile-Perception System with Signal-Processing Functionality.

Yaping Zang1,2, Hongguang Shen1,2, Dazhen Huang1,2

  • 1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.

Advanced Materials (Deerfield Beach, Fla.)
|February 23, 2017
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel organic tactile perception element that mimics human touch. This dual-organic-transistor-based tactile-perception element (DOT-TPE) integrates sensing and signal processing for advanced artificial intelligence applications.

Keywords:
electronic skinorganic transistorssynaptic devicestactile-perception systems

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Area of Science:

  • Materials Science
  • Electronics
  • Robotics

Background:

  • Organic electronics offer potential for advanced artificial perception systems.
  • Developing integrated sensing and signal processing in organic smart elements is challenging.
  • Biomimetic tactile perception is crucial for next-generation intelligent products.

Purpose of the Study:

  • To present a dual-organic-transistor-based tactile-perception element (DOT-TPE) with biomimetic functionality.
  • To demonstrate integrated sensing and synapse-like signal processing within a single organic element.
  • To explore the potential of DOT-TPE arrays for bionic tactile perception systems.

Main Methods:

  • Construction of organic synaptic transistors integrated with sensing transistors.
  • Design of a unique geometry for the DOT-TPE to enable dual functionality.
  • Fabrication of arrays of DOT-TPEs to form bionic tactile perception systems.

Main Results:

  • The DOT-TPE achieves instantaneous sensing of pressure stimuli.
  • The element exhibits synapse-like processing of electrical signals.
  • Arrays of DOT-TPEs function as effective bionic tactile perception systems.

Conclusions:

  • The developed DOT-TPE offers a significant advancement in organic tactile perception.
  • The system's biomimetic functionality, flexibility, and large-area fabrication potential are promising for e-skin devices.
  • This work paves the way for novel artificial intelligence applications utilizing advanced e-skin.