SIM card signal conversion method and apparatus
US10142831B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2014 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Jul 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/43
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The method of the present invention includes: obtaining an original signal outputted by a SIM card; converting the original signal into a target signal, where under an equal transmission condition and/or at an equal transmission distance, signal attenuation and/or distortion of the target signal are/is less than signal attenuation and/or distortion of the original signal; and sending the target signal to a terminal device, where the terminal device obtains the target signal by using a signal transmission line, and the SIM card exists independent of the terminal device. In the present invention, a SIM card may be separated from a terminal device, and a generated target signal may be transmitted over a relatively long distance by using a signal transmission line, which can satisfy an application that requires a SIM card to be placed far away from a terminal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.