Method and apparatus for detecting insertion of SIM card in a portable terminal
US8954096B2 · kind B2 · utility
3Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Dec 2, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0069
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for detecting insertion of a Subscriber Identity Module (SIM) card in a portable terminal are provided, in which a SIM card is inserted into a SIM card connector, and a controller continuously supplies an operating voltage to a predetermined pin of the SIM card connector, determines whether a voltage level of the predetermined pin of the SIM card connector changes in a predetermined pattern, and determines that the SIM card has been inserted into the SIM card connector if the voltage level of the predetermined pin of the SIM card connector changes in the predetermined pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.