System and method for multiplexing digital and analog signals using a single electrical connector
US7298765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Dec 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and a method are provided for multiplexing digital and analog signals to and from a device using a single electrical connector. The system includes a connector with at least four lines and analog and digital interfaces attached to the connector. The interfaces share: first and second analog-to-digital converters (ADCs); and first, second, and third switches. The analog interface includes an audio sub-system with a third ADC and first, second, and third digital-to-analog converters (DACs). The digital interface includes a digital sub-system. The switches have first terminals attached to the connector, second terminals connected to the third ADC and the DACs. The switches open in response to a digital mode signal, enabling a digital signal path from the digital interface terminals to the connector. The switches close in response to an analog mode signal, enabling an analog signal path from the connector to the audio sub-system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.