Multi-circuit signal transformer
US6717486B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R31/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Multiple digital audio transformer circuits are included in a module for mounting in a chassis. These digital audio transformer circuits are comprised of a front mounted twisted pair digital audio cable connector and a rear mounted coaxial cable connector, with circuitry including baluns electrically linking the front and rear connectors to reduce the impedance of the signal and attenuate the amplitude of the signal voltage. In one embodiment, the module may also include removable attenuation pads accessible through the front face of the module to allow variation of the level of voltage attenuation. The preferred embodiment of the module bi-directional transforms 110 Ohm digital audio signals and 75 Ohm coaxial signals. If transformation of other levels of impedance are desired, modules may also allow for removal and replacement of the baluns. A digital audio transformer system including multi-circuit modules and rack mount equipment chassis is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.