Digital transmission system with improved decoder in the receiver
US5854814A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1996 |
| Grant date | Dec 29, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/00
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A digital transmission system, such as a mobile radio system, having a transmitter for transmitting codewords which are derived from a digital signal, and a receiver for receiving codewords, the receiver including a decoder with a prediction filter which is excited by an input signal to produce an estimated digital signal. To improve reconstruction of the digital signal in the event of disturbances, the decoder includes a first switching circuit for switching off the input signal of the prediction filter when a disturbed codeword is received, and a second switching circuit for switching substitute values formed from previous values of the estimated digital signal instead of the estimated digital signal when the input signal is switched off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.