Access and control system for enhanced audio capabilities in an integrated telephony/high speed data access device
US6785267B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1999 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Jan 4, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/6418
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A telephone to digital data network interface 118 and method for its operation are disclosed. Interface 118 provides a connection point 52 and a standard line interface 50 for a POTS phone. Audio quality selector 86 interprets signaling received from a POTS phone (e.g., hookswitch signaling, DTMF signaling, or voice recognition commands) to select between multiple audio paths within interface 118. A first audio path includes the telephone line interface 50 and provides telephone-grade audio. Preferably, a second audio path includes a wideband audio output device (speaker 114) and a wideband audio input device (microphone 116). Audio quality selector 86 selects one of these paths using switches 106 and 108. It also communicates with digital audio processor 90, which preferably contains both a telephone-grade and a wideband audio codec and is capable of call-in-progress reconfiguration between the two.The present invention offers both a standard POTS phone interface and an option for higher-quality telephony when the other end of the conversation can provide this quality also.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.