Multilevel encoder
US5970098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Oct 2, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3433
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A improved multilevel encoder and associated method is described. The encoder includes a device (e.g., serial to parallel converter) for presenting a plurality of information bits in parallel format. A symbol selector having a plurality of inputs and an output, the symbol selector being configured to output a symbol that is defined by a signal constellation, whereby the symbol is defined by a magnitude and phase that are uniquely associated with a state of the plurality of inputs. A first encoder has an input and an output, the input of the first encoder being associated with at least one of the outputs of the device and the output being associated with at least one of the inputs of the symbol selector, the first encoder configured by a code defining a four-way set partition of the signal constellation. A second encoder has an input and an output, the input of the second encoder being associated with at least one of the outputs of the device and the output being associated with at least one of the inputs of the symbol selector, the second encoder configured by a code defining a two-way set partition of the signal constellation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.