Method and apparatus for processing downlink digital voice data
US5287399A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Jul 17, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/253
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for preprocessing digital voice data enroute to or from a Telephone's CODEC. The apparatus supports a CODEC directly connected to an internal bus and using a separate CODEC clock and sync signal to control transfers between a telephony link/internal bus interface and the CODEC. According to an embodiment of the present invention, an auxiliary processing device (connected to the internal bus side of the phone) is provided with means to process the digital voice information before sending it uplink or to the CODEC. This is accomplished without changing the position of the incoming voice field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.