Design and Evaluation of Identifiable Key-Click Signals for Mobile Devices.
Identifieur interne : 000E41 ( PubMed/Curation ); précédent : 000E40; suivant : 000E42Design and Evaluation of Identifiable Key-Click Signals for Mobile Devices.
Auteurs : Hsiang-Yu Chen ; Jaeyoung Park ; S. Dai ; H Z TanSource :
- IEEE transactions on haptics [ 1939-1412 ]
Abstract
As touch based input becomes more popular in mobile devices, there is an increasing need for haptic feedback on key-less input surface. Four experiments were conducted to design and evaluate identifiable emulated key-click signals using a piezoelectric actuator. Experiments I and II assessed the information transmission capacity for the amplitude, frequency, and number of cycles of raised cosine waveforms used to drive the piezo actuators under fixed- and roving-background conditions, respectively. Experiment III estimated the total information transfer for all three parameters. The results were used to reduce the number of stimulus alternatives in the key-click signal set with the goal to achieve perfect identification performance. Experiment IV verified that up to 5 to 6 identifiable key-click signals could be achieved with the experimental setup. The present study outlines an information theoretic approach to conducting identification experiments to guide the design of and to evaluate a perfectly identifiable stimulus set. The methodology can be applied to other applications in need of perceptually identifiable stimulation patterns.
DOI: 10.1109/TOH.2011.21
PubMed: 26963652
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Dai</name></author><author><name sortKey="Tan, H Z" sort="Tan, H Z" uniqKey="Tan H" first="H Z" last="Tan">H Z Tan</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="????"><PubDate><MedlineDate>2011 Jul-Aug</MedlineDate></PubDate></date><idno type="doi">10.1109/TOH.2011.21</idno><idno type="RBID">pubmed:26963652</idno><idno type="pmid">26963652</idno><idno type="wicri:Area/PubMed/Corpus">000E41</idno><idno type="wicri:Area/PubMed/Curation">000E41</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Design and Evaluation of Identifiable Key-Click Signals for Mobile Devices.</title><author><name sortKey="Hsiang Yu Chen" sort="Hsiang Yu Chen" uniqKey="Hsiang Yu Chen" last="Hsiang-Yu Chen">Hsiang-Yu Chen</name></author><author><name sortKey="Jaeyoung Park" sort="Jaeyoung Park" uniqKey="Jaeyoung Park" last="Jaeyoung Park">Jaeyoung Park</name></author><author><name sortKey="Dai, S" sort="Dai, S" uniqKey="Dai S" first="S" last="Dai">S. Dai</name></author><author><name sortKey="Tan, H Z" sort="Tan, H Z" uniqKey="Tan H" first="H Z" last="Tan">H Z Tan</name></author></analytic><series><title level="j">IEEE transactions on haptics</title><idno type="ISSN">1939-1412</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">As touch based input becomes more popular in mobile devices, there is an increasing need for haptic feedback on key-less input surface. Four experiments were conducted to design and evaluate identifiable emulated key-click signals using a piezoelectric actuator. Experiments I and II assessed the information transmission capacity for the amplitude, frequency, and number of cycles of raised cosine waveforms used to drive the piezo actuators under fixed- and roving-background conditions, respectively. Experiment III estimated the total information transfer for all three parameters. The results were used to reduce the number of stimulus alternatives in the key-click signal set with the goal to achieve perfect identification performance. Experiment IV verified that up to 5 to 6 identifiable key-click signals could be achieved with the experimental setup. The present study outlines an information theoretic approach to conducting identification experiments to guide the design of and to evaluate a perfectly identifiable stimulus set. 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Four experiments were conducted to design and evaluate identifiable emulated key-click signals using a piezoelectric actuator. Experiments I and II assessed the information transmission capacity for the amplitude, frequency, and number of cycles of raised cosine waveforms used to drive the piezo actuators under fixed- and roving-background conditions, respectively. Experiment III estimated the total information transfer for all three parameters. The results were used to reduce the number of stimulus alternatives in the key-click signal set with the goal to achieve perfect identification performance. Experiment IV verified that up to 5 to 6 identifiable key-click signals could be achieved with the experimental setup. The present study outlines an information theoretic approach to conducting identification experiments to guide the design of and to evaluate a perfectly identifiable stimulus set. 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