Apparatus to verify position of electrical contacts within a sliding SIM mechanism
US5979771A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Oct 3, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A SIM contact position tester (100) for verifying the position of SIM card contacts (c1-c8). A printed wiring board (102) is provided with traces (A-D) which correspond to the contacts (c1-c8) of the SIM card reader connector (101) and are configured to mate with the contacts of the SIM card reader connector (101) mounted within the radio telephone. A plurality of light emitting diodes (LED) (106) are coupled to the traces (A-D). The light emitting diodes (106) are configured to provide an indication of the position of the contacts (c1-c8) when the PWB (102) is positioned within the radio telephone. In one embodiment, the LEDs (106) sequentially light up as the printed wiring board (106) is moved into position over the contacts (c1-c8) of the SIM card reader connector (101).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.