Reduced-power magnetic transducer system utilizing a magnetoresistive head
US5767495A · kind A · utility
24Cited by
12References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reduced-power dynamic magnetic transducer system includes a magnetoresistive read head, a low duty cycle pulse generator to supply power to the head, a signal processor, and a controller. As a data-bearing card is moved adjacent to the magnetoresistive read head, the pulse generator actuates the read head, thereby providing an intermittent signal representative of data recorded on the card. The intermittent signal is processed by the signal processor to reconstruct the original recorded data. The reconstructed data is utilized by the controller in conducting transactions with a user of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.