Digital high speed programmable convolver
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United States of America Patent
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-
Jul 7, 1987
Grant Date -
N/A
app pub date -
Dec 17, 1984
filing date -
Dec 17, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit module rapidly calculates a discrete numerical convolution. A convolution such as finding the sum of the products of a 16 bit constant and a 16 bit variable is performed by the module which is programmable so that the constant may be changed for a new problem. In addition, the module may be programmed to find the sum of the products of 4 and 8 bit constants and variables. Random access memories are loaded with partial products of the selected constant and all possible variables. Then, when the actual variable is loaded, it acts as an address to find the correct parital product in the particular RAM. The partial products from all of the RAMs are shifted to the appropriate numerical power position (if necessary) and then added in adder elements.
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