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7254775 |
Touch panel system and method for distinguishing multiple touch inputs
Touch panel systems and methods are disclosed that can distinguish temporally overlapping touch inputs from single touch inputs so that valid touch position coordinates can be determined. Touch...
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7075525 |
Method for designing reflection stripes of an acoustic touch screen
A method for designing reflection stripes of an acoustic touch screen, comprising: dividing a reflection stripe of an acoustic touch screen into a plurality of groups according to an integral times...
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6567077 |
Touch panel
A touch panel comprises a substrate 11 allowing acoustic wave to be propagated and a transducer 13 a , mounted to this substrate, for transmitting or receiving the acoustic wave. A chamfered...
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6518960 |
Electronic blackboard system
An electronic blackboard system with a PDP for displaying characters and images. A touch input device with a touch panel surface is provided on the front surface of the PDP. A printer outputs image...
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6498603 |
Surface wave touch screen
A surface wave touch screen) comprising a hydrophobic touch panel capable of propagating surface acoustic waves, wherein a touch on the touch panel causes a perturbation of a surface wave...
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6441809 |
Acoustic touch position sensor using a low acoustic loss transparent substrate
An acoustic touch panel or “touch screen” utilizes acoustic waves within a sensor substrate to determine the position of touch. The substrate is made of a temperable glass having an attenuation...
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6366277 |
Contaminant processing system for an acoustic touchscreen
A method for minimizing the shadowing effects of a contaminant on a surface acoustic wave touchscreen is provided. The disclosed system compares the measured waveform against a baseline waveform...
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