HandTalk: Assistive Technology for the DUMB(AMERICAN SIGN LANGUAGE)Sarji, D.K.ComputerVolume 41, Issue 7, July 2008 Page(s...
intelligently into text and display it on a nearby computer for the otherperson to comprehend it easily.The Handtalk glove...
is further converted into text by the computer.
Flexible Bend SensorsThe Flex Sensor is a unique component that changes resistance when bent.An un flexed sensor has a nom...
The sensor measures 1/4 inch wide, 4 1/2 inches long and only .019 inchesthick!
VOICE                                              AMPLIFIER/SPEA                                              KER      Bl...
VOICE                                              AMPLIFIER/SPEA                                              KER      Bl...
VOICE                                              AMPLIFIER/SPEA                                              KER      Bl...
VOICE                                              AMPLIFIER/SPEA                                              KER      Bl...
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HandTalk: Assistive Technology for the DUMB (AMERICAN SIGN LANGUAGE

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HandTalk: Assistive Technology for the DUMB (AMERICAN SIGN LANGUAGE

  1. 1. HandTalk: Assistive Technology for the DUMB(AMERICAN SIGN LANGUAGE)Sarji, D.K.ComputerVolume 41, Issue 7, July 2008 Page(s):84 - 86Digital Object Identifier 10.1109/MC.2008.226Summary:One of the many areas in whichembedded systems show great promise is assistivetechnologies, which address the special needs ofthose with impairments. This article presentsHandTalk, a "smart glove" that can recognize basichand gestures and convert them into speech usinglow-cost, commercial off-the-shelf (COTS)components. A low-cost, portable gesture-to-speechglove prototype demonstrates that embedded systemsdont have to be expensive to be effective. HandTalk: Assistive Technology for the DumbTechnology has always been of great help to the disabled and given them ahelping hand to allow them to live a normal and healthy life like others. wehave come up with a novel idea of a glove named Handtalk that will converthand movements into text and allow the deaf to express themselves better.The Handtalk glove needs to be worn on the hand by the deaf or mute personand depending on the variation of movement, the device will convert it
  2. 2. intelligently into text and display it on a nearby computer for the otherperson to comprehend it easily.The Handtalk glove senses the movements through the flex sensors padswhich detect the different patterns of motion and the way the finger curls.The device can sense carefully each resistance and each movement made bythe hand. Currently the device can convert only few words, but dependingon the success of this device few more additional words may be added lateronto this expressive system.The Gestures can be converted to voice by using a text to voice convertorsoftwares in the computer.The heart of the system will be the PIC Microcontroller which is responsiblefor converting the hand movement signals to the corresponding codes which
  3. 3. is further converted into text by the computer.
  4. 4. Flexible Bend SensorsThe Flex Sensor is a unique component that changes resistance when bent.An un flexed sensor has a nominal resistance of 10,000 ohms (10 K). As theflex sensor is bent the resistance gradually increases. When the sensor isbent at 90 degrees its resistance will range between 30-40 K ohms.The flex sensor may be bent greater that 360 degrees depending upon theradius of the curve. Operating temperature is -45F to 125F.
  5. 5. The sensor measures 1/4 inch wide, 4 1/2 inches long and only .019 inchesthick!
  6. 6. VOICE AMPLIFIER/SPEA KER Block Diagram OUTPUT(20WAT TS) OUTPUT(APR9600) Power Supply(+5v BOARD dc supply) Flex Sensor 1+12V FlexP Sensor 2O Signal converterW PIC MicrocontrollerE with voltage PIC 16F877R Flex follower Sensor 3SUPP FlexL Sensor 4Y
  7. 7. VOICE AMPLIFIER/SPEA KER Block Diagram OUTPUT(20WAT TS) OUTPUT(APR9600) Power Supply(+5v BOARD dc supply) Flex Sensor 1+12V FlexP Sensor 2O Signal converterW PIC MicrocontrollerE with voltage PIC 16F877R Flex follower Sensor 3SUPP FlexL Sensor 4Y
  8. 8. VOICE AMPLIFIER/SPEA KER Block Diagram OUTPUT(20WAT TS) OUTPUT(APR9600) Power Supply(+5v BOARD dc supply) Flex Sensor 1+12V FlexP Sensor 2O Signal converterW PIC MicrocontrollerE with voltage PIC 16F877R Flex follower Sensor 3SUPP FlexL Sensor 4Y
  9. 9. VOICE AMPLIFIER/SPEA KER Block Diagram OUTPUT(20WAT TS) OUTPUT(APR9600) Power Supply(+5v BOARD dc supply) Flex Sensor 1+12V FlexP Sensor 2O Signal converterW PIC MicrocontrollerE with voltage PIC 16F877R Flex follower Sensor 3SUPP FlexL Sensor 4Y

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