Interference protected electronic apparatus
US5182531A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1990 |
| Grant date | Jan 26, 1993 |
| Priority date | — |
| Expiry date | Apr 27, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device is suggested which comprises a signal emitting circuit part (1) and a signal processing circuit part (4), at least one line for supplying the signal processing circuit part (4) with operating current and/or at least one signal input line (6) and/or at least one signal output line being guided to the signal processing circuit part (4) from an external circuit. The device includes at least one filter circuit (7) which is connected to the signal processing circuit part (4) and inserted into the signal line (6). The filter circuit (7) comprises additional damping elements for the associated line (6) for damping interference voltage induced by of external high-frequency fields. The amplitude of the interference voltage is greater, preferably substantially greater, than a linear control range of circuit elements of the signal processing circuit part (4). Damping elements and filter circuits are monolithically integrated together with the signal processing circuit part (4). The teaching of the invention is also to be applied to the signal emitting circuit part (1) insofar as the induced interference voltage influences its signal output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.