Spot mode functionality for power saving in a sensor system
US10393552B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2013 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jul 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5776
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a sensor system, and more particularly, to systems, devices and methods of processing a sensing signal from a sensor to generate amplitude and phase controls for driving this sensor in a controlled manner and enabling synchronized operation of the sensor system. A signal processor in the sensor system comprises a sensor readout circuit, an amplitude controller and a phase controller. A subset of functional blocks in the signal processor may alternate between active and inactive power saving durations. During the active power saving durations, the subset of functional blocks are powered off or functionally disabled to conserve power consumption. The amplitude and phase controls are latched for the purposes of properly maintaining the driving signal and the system clock. During the subsequent inactive power saving durations, the subset of functional blocks return to normal operation to refresh the amplitude and phase controls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.