Bidimensional FIR filter
US5349547A · kind A · utility
6Cited by
3References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1993 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Aug 25, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H17/0202
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A bidimensional Finite Impulse Response (FIR) filter of rank 2p+1 for processing data associates a "vertical" filter and a "horizontal" filter. Each filter comprises 2p+1 cells and circuitry for vertically scanning the data according to stripes having a height of p data; circuitry for simultaneously providing on a first line a datum of a stripe, on a second line a datum of the former stride shifted by p data, and on a third line, a datum of the still former stripe again shifted by p data; and circuitry for, at each clock time, connecting each cell input to one of the three lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.