Cell to word buffer
US4568941A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1982 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Jun 29, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C7/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a cell to word buffer for use in a digital TV display radar system in which radar pulse returns are digitized by an analog to digital converter to form pixel data, polar coordinates of the pulse returns are converted to their equivalent X, Y cartesian coordinates by a coordinate converter and the pixel data are stored in an X, Y refresh memory array in accordance with their X, Y coordinates for use in refreshing a TV display. The cell to word buffer allows large offsets in high resolution radar scan converters. The cell to word buffer memory means is located intermediate the coordinate converter and refresh memory for temporarily storing, for each Y location, a plurality of groups of adjacent pixel data and their associated X addresses and for transferring each group of pixel data to its appropriate location in the refresh memory when each group in the buffer memory is filled with pixel data. Further buffer registers of the first in, first out type may be provided intermediate the buffer memory and the refresh memory for smoothing the rate of data transfers therebetween. Also, peak detection means may be provided to avoid loss of pixel data for radar samples near the o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.