Filter with hysteresis for trip point applications
US5233329A · kind A · utility
9Cited by
8References
37Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 27, 1991 |
| Grant date | Aug 3, 1993 |
| Priority date | — |
| Expiry date | Aug 27, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/802
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A circuit including a sender providing a sender output signal responsive to a vehicle parameter, circuitry for providing an adjustable reference, circuitry for comparing the output signal to the adjustable reference and providing a comparison output signal therefrom, an up/down counter for filtering the comparison output signal, and circuitry for providing an indicator control signal in response to the filtered output signal and for controlling the adjustment of the adjustable reference, provides a signal to a vehicle operator that is both filtered and has hysteresis to minimize repeated switching of the signal between two states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.