Bit rate adaptation system for digital transmission systems
US4953180A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Apr 21, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/05
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A rate adaptation system for adapting the rate of a communication stream between a first communication device (TE) and a second communication device (NT). The first communication device transmits and receives data at a first given rate and the second communication device transmits and receives data at a second rate higher than said first rate (generally 8, 16, 32 or 64 kbits/s). The rate adaptation system includes a transmit part (620) which allows the transmission from the first communication device to the second communication device by means of a bit repetition and framing function. The rate adaptation system also includes a receive part (630) which allows the transmission from the second communication device to the first communication device. The invention further includes a first storage (670) which can be addressed by an address bus (640), a data bus (650) and a control bus (660) either by the transmit part (620), or the receive part (630) or by a processor (680) external to the transmit and receive part. A second storage (690) can be addressed by the processor (680 ).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.