Array convolver/correlator
US4347580A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 1980 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Jul 21, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06J1/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An array convolver and/or correlator comprises first and second two-dimennal shift registers defined by N rows and M columns, corresponding columns, the first, the second, etc., of the two registers being aligned. N and M are generally in the range of 4 to 512. Data is capable of entering at least one of the left or right columns of each of the two shift registers. The data shifts downward to the bottom row in the first, upper, shift register and upward to the top row in the second, lower, shift register. A plurality of M analog multipliers each has an input from corresponding, aligned columns of each of the two registers. An analog summer has M inputs, one from each of the multipliers. The output of the summer is a correlation or convolution, depending upon which specific columns the data enters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.