Input device of rotational operation quantity and operating device using this

An efficient rotational-operation-quantity input device suitable to be built into a small electrical appliance is provided. An operational force applied by an operator is input in time series as a coordinate value (x, y) in an XY two-dimensional rectangular coordinate system by a two-dimensional for...

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Bibliographic Details
Main Authors TANIGUCHI NOBUMITSU, OKADA KAZUHIRO, TAKAGI SHIGEO
Format Patent
LanguageEnglish
Published 11.07.2006
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CALCULATING
COMPUTING
CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BYMECHANICAL FEATURES ONLY
CONTROLLING
COUNTING
CRYPTOGRAPHY
DISPLAY
EDUCATION
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
REGULATING
SEALS
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Summary:An efficient rotational-operation-quantity input device suitable to be built into a small electrical appliance is provided. An operational force applied by an operator is input in time series as a coordinate value (x, y) in an XY two-dimensional rectangular coordinate system by a two-dimensional force sensor 100 , and is converted into a coordinate value (r, theta) by a polar-coordinate converting section 200. When a value r of the coordinate value (r, theta) obtained in time series is larger than a predetermined threshold rt, an operation-quantity recognizing section 300 recognizes the coordinate value (r, theta) as a significant coordinate value, and, when the value theta generates a variation Deltatheta exceeding a predetermined threshold thetat with respect to a value "theta before" immediately therebefore during a period during which a significant coordinate value (r, theta) is obtained continuously, it recognizes a value corresponding to the variation Deltatheta as an operation quantity indicating a rotation.
Bibliography:Application Number: US20030619965