Method for controlling scale parameters of an instrument in response to input to an event-generating control sensor
US6278268A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R15/09
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A scale control method provides fine scale control in a measurement instrument and also provides scale control spanning wide adjustment ranges. The method detects the presence of the user input to a control sensor and establishes an acceleration factor for the input based on a rate at which events are generated by the control sensor. The acceleration factor modifies a defined scale step size that has a correspondence to the events generated by the control sensor. The defined scale step size, as modified by the acceleration factor, is added to a prior scale to establish a present scale. The present scale and prior scale are used to select a detent value from a series of detent values and to determine if a detent is applicable. When a detent is applicable, the present scale is set to the selected detent value and control of the scale parameters is then determined by this detent value. When the detent is not applicable scale parameters are adjusted according to the defined step size as modified by the acceleration factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.