Electronic apparatus that detects different kinds of operations on rotational operation member

A mechanism enabling an electronic dial (110) to operate without generating a click noise. The dial (110) includes a rotational operation member (301) that is turnable. A rotary plate (304) is rigidly secured to the operation member. The rotary plate is formed of a conductive material and has a plur...

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Bibliographische Detailangaben
1. Verfasser:	DEGAWA TAKAMASA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM BASIC ELECTRIC ELEMENTS CALCULATING CINEMATOGRAPHY COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRIC SWITCHES ELECTRICITY ELECTROGRAPHY EMERGENCY PROTECTIVE DEVICES HOLOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION RELAYS SELECTORS
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Beschreibung
Zusammenfassung:	A mechanism enabling an electronic dial (110) to operate without generating a click noise. The dial (110) includes a rotational operation member (301) that is turnable. A rotary plate (304) is rigidly secured to the operation member. The rotary plate is formed of a conductive material and has a plurality of detecting portions (309) circumferentially formed thereon. A printed circuit board (303) is disposed between the operation member and the rotary plate. The printed circuit board has a first detection electrode group (400) formed on a surface thereof opposed to the operation member (301) and a second detection electrode group (401) formed on a surface thereof opposed to the rotary plate (304). A detection circuit (206) detects a touch operation onto the operation member based on an output from the first detection electrode group and detects a turning operation of the operation member based on an output from the second detection electrode group.