Antenna self-capacitance change detection method and apparatus, and related applications
US12395943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Apr 2, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/088
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure relates to an antenna self-capacitance change detection method and apparatus, and related applications. The method includes: acquiring a total self-capacitance change of the antenna and a total self-capacitance change of the sensor electrode respectively; determining a first self-capacitance change of the antenna caused by a temperature change according to the total self-capacitance change of the sensor electrode and a preset self-capacitance change proportional coefficient; and determining a difference value between the total self-capacitance change and the first self-capacitance change of the antenna as a second self-capacitance change of the antenna caused by proximity of an object. The antenna self-capacitance change detection method can accurately determine the antenna self-capacitance change caused by the proximity of the object, to accurately determine whether there is an object approaching, thereby better controlling and adjusting the antenna transmitting power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.