PRODUCT SUM OPERATION DEVICE
PROBLEM TO BE SOLVED: To quickly perform the product sum operation of complex numbers. SOLUTION: This device consists of a multiplier 101, a complementary number generator 102, accumulators 105 and 106, and adders 103 and 104, and the multiplier 101 calculates the multiplication value of two inputte...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
10.06.1997
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| Edition | 6 |
| Subjects | |
| Online Access | Get full text |
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| Abstract | PROBLEM TO BE SOLVED: To quickly perform the product sum operation of complex numbers. SOLUTION: This device consists of a multiplier 101, a complementary number generator 102, accumulators 105 and 106, and adders 103 and 104, and the multiplier 101 calculates the multiplication value of two inputted 2n-bit data, and the complementary generator 102 calculates 2's complementary number of this multiplication value. The adder 103 reads out n-bit data stored in the accumulator 105 and adds this value and upper n-bit data of the multiplication value and stores the result in the accumulator 105. The adder 104 reads out n-bit data stored in the accumulator 106 and adds this value and upper n-bit data of the complementary number generator and stores the result in the accumulator 106. |
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| AbstractList | PROBLEM TO BE SOLVED: To quickly perform the product sum operation of complex numbers. SOLUTION: This device consists of a multiplier 101, a complementary number generator 102, accumulators 105 and 106, and adders 103 and 104, and the multiplier 101 calculates the multiplication value of two inputted 2n-bit data, and the complementary generator 102 calculates 2's complementary number of this multiplication value. The adder 103 reads out n-bit data stored in the accumulator 105 and adds this value and upper n-bit data of the multiplication value and stores the result in the accumulator 105. The adder 104 reads out n-bit data stored in the accumulator 106 and adds this value and upper n-bit data of the complementary number generator and stores the result in the accumulator 106. |
| Author | FUNAHASHI KAZUTOSHI |
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| Notes | Application Number: JP19950314063 |
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| RelatedCompanies | MATSUSHITA ELECTRIC IND CO LTD |
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| Snippet | PROBLEM TO BE SOLVED: To quickly perform the product sum operation of complex numbers. SOLUTION: This device consists of a multiplier 101, a complementary... |
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| SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS |
| Title | PRODUCT SUM OPERATION DEVICE |
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