Method and apparatus for rapid staking of antennae in smart card manufacture
US6628240B2 · kind B2 · utility
50Cited by
10References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Jan 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0775
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for implanting a wire antenna in a contactless smart card includes an ultrasonic implanting head with a voice-coil actuator to control the pressure at which a heated wire is forced into a plastic card substrate. The force produced by the actuator is proportional to the current in a coil winding in the actuator. A controller uses a feedback system to maintain a relatively constant applied pressure. The feedback system monitors the current in the coil and the controller issues electronic signals to increase or decrease the current in the coil in response to the monitored current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.