Operating knob device and electronic equipment including the same
US6356045B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Sep 13, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/23057
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An operating knob device has: a position detection portion for detecting a position of a set numerical value of an object to be set; an operating portion for changing and operating the set numerical value; a drive portion for driving the operating portion; and a control portion for controlling the drive portion on the basis of a detection result of the position detection portion. The control portion includes: a first position calculation portion for calculating a first set numerical value that is a current set numerical value of the object to be set, on the basis of the detection result of the position detection portion; a second position calculation portion for calculating one or a plurality of second set numerical values that are set numerical values before change of the object to be set, on the basis of the detection result of the position detection portion; and a drive control portion for controlling the drive portion to be driven and changing and controlling a drive parameter of the drive portion when an absolute value of a difference between the first set numerical value and at least one of second set numerical values falls within an allowable range. Thus, the operator may re…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.