Back to Finger-Writing Fingertip writing technology based on pressure sensing, 2020
Handwriting was since the start of the history, a higher expression of human skills, and was
used... more Handwriting was since the start of the history, a higher expression of human skills, and was used for documentation of experiences, and for communication. Existing writing technology require a writing tool, like a pen, and a dedicated writing surface, like paper, or more recently an electronic tablet. These accessories of writing, of writing tool and service, are not available in many daily life situations. Furthermore, the writing accessories, are not natural, in many cases are not ergonomic, and thus can cause fatigue, and in extreme cases contribute to muscular and neurological diseases. In this work, we suggest to step back in history and step forward in technology, and to create, for the first time, an alternate writing solution without any accessories, using one own finger as writing tool, and write on almost any surface. For this, we used directional pressure sensors attached to the fingernail. Changes in the pressure induced on the fingertip in different directions while writing, are projected to the fingernail, and then assessed as a voltage pattern by the sensor. Decoding the pattern, can reveal symbols like letters, punctuations, and writing commands. In this paper, we describe the new pressure sensing modality and tailor processing methods. We tested the new technology on two subjects having different writing patterns while writing alphabet and sentences on different surfaces. We reached letter detection of over 80% while writing on a table, and the word detection rate, was near 70%, after applying the correction algorithm include language priors. The results of this work can revolutionize the way people write and communicate using more convenient, and more approachable, finger-tip writing.
Silicon die stacking with low-volume interconnections is an attractive method for 3D integration.... more Silicon die stacking with low-volume interconnections is an attractive method for 3D integration. It offers such benefits as extension to fine-pitch integration, increased vertical heat transfer and hierarchy for repeated thermal processes without re-melting. The process uses low-volume solder to form joints of few microns high. The low-volume solder mostly forms intermetallic compounds with underlying metals. The formation of intermetallic
Back to Finger-Writing Fingertip writing technology based on pressure sensing, 2020
Handwriting was since the start of the history, a higher expression of human skills, and was
used... more Handwriting was since the start of the history, a higher expression of human skills, and was used for documentation of experiences, and for communication. Existing writing technology require a writing tool, like a pen, and a dedicated writing surface, like paper, or more recently an electronic tablet. These accessories of writing, of writing tool and service, are not available in many daily life situations. Furthermore, the writing accessories, are not natural, in many cases are not ergonomic, and thus can cause fatigue, and in extreme cases contribute to muscular and neurological diseases. In this work, we suggest to step back in history and step forward in technology, and to create, for the first time, an alternate writing solution without any accessories, using one own finger as writing tool, and write on almost any surface. For this, we used directional pressure sensors attached to the fingernail. Changes in the pressure induced on the fingertip in different directions while writing, are projected to the fingernail, and then assessed as a voltage pattern by the sensor. Decoding the pattern, can reveal symbols like letters, punctuations, and writing commands. In this paper, we describe the new pressure sensing modality and tailor processing methods. We tested the new technology on two subjects having different writing patterns while writing alphabet and sentences on different surfaces. We reached letter detection of over 80% while writing on a table, and the word detection rate, was near 70%, after applying the correction algorithm include language priors. The results of this work can revolutionize the way people write and communicate using more convenient, and more approachable, finger-tip writing.
Silicon die stacking with low-volume interconnections is an attractive method for 3D integration.... more Silicon die stacking with low-volume interconnections is an attractive method for 3D integration. It offers such benefits as extension to fine-pitch integration, increased vertical heat transfer and hierarchy for repeated thermal processes without re-melting. The process uses low-volume solder to form joints of few microns high. The low-volume solder mostly forms intermetallic compounds with underlying metals. The formation of intermetallic
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used for documentation of experiences, and for communication. Existing writing technology require a
writing tool, like a pen, and a dedicated writing surface, like paper, or more recently an electronic tablet.
These accessories of writing, of writing tool and service, are not available in many daily life situations.
Furthermore, the writing accessories, are not natural, in many cases are not ergonomic, and thus can cause
fatigue, and in extreme cases contribute to muscular and neurological diseases. In this work, we suggest to
step back in history and step forward in technology, and to create, for the first time, an alternate writing
solution without any accessories, using one own finger as writing tool, and write on almost any surface. For
this, we used directional pressure sensors attached to the fingernail. Changes in the pressure induced on the
fingertip in different directions while writing, are projected to the fingernail, and then assessed as a voltage
pattern by the sensor. Decoding the pattern, can reveal symbols like letters, punctuations, and writing
commands. In this paper, we describe the new pressure sensing modality and tailor processing methods. We
tested the new technology on two subjects having different writing patterns while writing alphabet and
sentences on different surfaces. We reached letter detection of over 80% while writing on a table, and the
word detection rate, was near 70%, after applying the correction algorithm include language priors. The
results of this work can revolutionize the way people write and communicate using more convenient, and
more approachable, finger-tip writing.
used for documentation of experiences, and for communication. Existing writing technology require a
writing tool, like a pen, and a dedicated writing surface, like paper, or more recently an electronic tablet.
These accessories of writing, of writing tool and service, are not available in many daily life situations.
Furthermore, the writing accessories, are not natural, in many cases are not ergonomic, and thus can cause
fatigue, and in extreme cases contribute to muscular and neurological diseases. In this work, we suggest to
step back in history and step forward in technology, and to create, for the first time, an alternate writing
solution without any accessories, using one own finger as writing tool, and write on almost any surface. For
this, we used directional pressure sensors attached to the fingernail. Changes in the pressure induced on the
fingertip in different directions while writing, are projected to the fingernail, and then assessed as a voltage
pattern by the sensor. Decoding the pattern, can reveal symbols like letters, punctuations, and writing
commands. In this paper, we describe the new pressure sensing modality and tailor processing methods. We
tested the new technology on two subjects having different writing patterns while writing alphabet and
sentences on different surfaces. We reached letter detection of over 80% while writing on a table, and the
word detection rate, was near 70%, after applying the correction algorithm include language priors. The
results of this work can revolutionize the way people write and communicate using more convenient, and
more approachable, finger-tip writing.