Cell to word buffer

Details Cell to word buffer Cell to word buffer

G - Physics

01

S

343/54

G01S 7/28 (2006.01) G01S 7/298 (2006.01) G11C 7/00 (2006.01) G11C 7/10 (2006.01)

Patent

CA 1190632

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 buffet 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 inter- mediate 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 origin.

392799

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