Universal transversal filter chip
US4161706A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1978 |
| Grant date | Jul 17, 1979 |
| Priority date | — |
| Expiry date | Jan 12, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H15/023
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This specification describes a charge-transfer device transversal filter chip in which an input signal is fed in parallel into a number of channels the outputs of which are summed together to provide the desired transversal filter transfer function. Each channel contains an analog shift register, a signal splitter and a polarity selector. The shift registers are of unequal length to provide a different delay thru each channel. The signal splitter provides a plurality of signal paths thru each channel while the polarity selector determines whether a given path in a given channel is added or subtracted in the summation to determine the gain of the given channel in the summation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.