Transcoding device provided with a derivation
US6816511B1 · kind B1 · utility
0Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 16, 1999 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Aug 16, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/181
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Transcoder apparatus is designed to transcode a receive signal (UR) into a transmit signal (UE). For this purpose, it includes a signaling transmitting member (14) for producing a signaling message and for introducing it into the transmit signal by stealing bits from said signal. According to the invention, the signaling transmitter member (14) also comprises a tone generator (15) to add a tone signal (UTS) to the transmit signal (UE) prior to applying the signaling message to said transmit signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.