Technique for achieving the full coding gain of encoded digital signals
US5095497A · kind A · utility
97Cited by
4References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/033
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a telephone local loop transmission arrangement, data is communicated from the customer premises to the central office utilizing a multi-dimensional, passband signal illustratively at 480 kb/s. Specifically, the transmitted signal is encoded in a trellis code and precoded using a generalized partial response filter. The received signal is processed by a circuitry that implements a trellis decoding in combination with nonlinear filtering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.