Communication terminal device and control method
US8725094B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A communication terminal device includes a magnetic sensor, a processor, and a power control module. The magnetic sensor detects a current magnetic field generated by induction of internal current in internal circuits of the communication terminal device, and provides a value of strength of the current magnetic field to the processor. The processor compares the value of the strength of the current magnetic field with preset values, and obtains a comparison result. In a situation that the processor determines that the current magnetic field is anomalous according to the comparison result, the processor controls the power control module to withhold power to the communication terminal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.