INFORMATION INPUT AND OUTPUT DEVICE AND ENCODING MODULE THEREOF
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United States of America Patent
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Issued Date -
Oct 13, 2016
app pub date -
Sep 10, 2015
filing date -
Apr 8, 2015
priority date (Note) -
Abandoned
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Abstract
An information input and output device comprises a casing, an outer ring body, a magnetic wheel and an encoding module. The casing comprises an annulus sidewall and a base. A first surface of the outer ring body is close to the annulus sidewall. A single groove of the outer ring body is formed on the first surface. The magnetic wheel is fixed into the groove. The outer ring body and the magnetic wheel are rotatably disposed around an outer wall surface of the annulus sidewall. The encoding module comprises a circuit board and an information processing unit. When the outer ring body is rotated, the information processing unit is configured to detect a number of times and a direction in changes of the magnetic field of the magnetic wheel and convert the detected results into a position information and a direction information.
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