Method and circuit configuration for generating filter coefficients
US4933891A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/238
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Coefficient signals are generated for a transverse filter which receives data signals assuming W different amplitude values as input signals, with N successive input signals being stored in a serial-in-parallel-out (SIPO) storage arrangement having N storage cells. According to the input signals stored in the storage cells of the SIPO storage arrangement, predetermined filter signal coefficients possible for the W possible amplitude values individually are added and W corresponding partial sum signals made available. The partial sum signals are each multiplied by a factor corresponding to the particular amplitude value and subsequently added to form a sum signal. At least some of the product signals are multiplied by an additional correction signal coefficient assigned to the particular amplitude value. The additional product signals resulting therefrom are included in the formation of the sum signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.