Education and demonstration – Communication aids for the handicapped – Tactile reading aid
Reexamination Certificate
2007-06-05
2007-06-05
Cheng, Joe H. (Department: 3714)
Education and demonstration
Communication aids for the handicapped
Tactile reading aid
C434S112000, C340S407100, C345S173000, C345S031000
Reexamination Certificate
active
10470897
ABSTRACT:
A method and apparatus for refreshable tactile output of information from a computer, includes using a movement actuator to move in unison along a first dimension a plurality of tactile elements that can be touched by a user of the tactile output. Based on data received from a computer processor, a particular tactile element of the plurality of tactile elements is locked with a corresponding lock actuator of a corresponding plurality of lock actuators different from the movement actuator. The method and apparatus allow a low cost, highly reliable movement actuator to be employed that does not substantially exceed the size of the tactile output area.
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PCT International Search Report-PCT/US02/06943.
Cheng Joe H.
Fasulo, II Albert J.
The Johns Hopkins University
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