Index inputting apparatus

The utility model relates to an index inputting apparatus, comprising a sphere, a grating encoding rotary plate, an infrared transmitter, and infrared receiver, a control circuit and a function button. The number of holes which are arranged on the external circumference of the grating encoding rotar...

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Bibliographic Details
Main Authors JIACHENG ZHANG, ZHIRUI JIN, MINGDE LIN
Format Patent
LanguageEnglish
Published 09.08.2000
Edition6
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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