SU911523A1 - Device for computing logarithms of numbers presented in unit-counting code - Google Patents
Device for computing logarithms of numbers presented in unit-counting code Download PDFInfo
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- SU911523A1 SU911523A1 SU792814426A SU2814426A SU911523A1 SU 911523 A1 SU911523 A1 SU 911523A1 SU 792814426 A SU792814426 A SU 792814426A SU 2814426 A SU2814426 A SU 2814426A SU 911523 A1 SU911523 A1 SU 911523A1
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- SU
- USSR - Soviet Union
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- unit
- numbers presented
- counting code
- logarithms
- computing
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Description
(5) УСТРОЙСТВО ДЛЯ ВЫЧИСЛЕНИЯ ЛОГАРИФМОВ ЧИСЕЛ, ПРЕДСТАВЛЕННЫХ ЧИСЛО-ИМПУЛЬСНЫМ КОДОМ(5) A DEVICE FOR CALCULATING THE LOGARIFM OF NUMBERS PRESENTED BY NUMBER-PULSE CODE
Изобретение относитс к вычислительной технике.The invention relates to computing.
Известно устройство дл вычислени логарифмов, содержащее два счетчика , реверсивный счетчик, сдвигающий регистр, два триггера, три c)iteмы И, группу схем И, генератор тактовых импульсов, управл емый делитель , дешифратор, умножитель tU . A device for calculating logarithms is known, which contains two counters, a reversible counter, a shift register, two triggers, three c) ANDs, a group of AND circuits, a clock generator, a controlled divider, a decoder, a multiplier tU.
Недостатком устройства вл етс низка точность вычислени логарифма числа.The disadvantage of the device is the low accuracy of the calculation of the logarithm of the number.
Наиболее близким по технической сущности к предлагаемому вл етс цифровое устройство дл вычислени логарифмов чисел, представленных число-импульсным кодом, содержащее первый и второй счетчики, двоичный умножитель и первый элемент ИЛИ, причем выхольг первого и второго счетчиков подключены соответственно к первой и второй группам входов двоичного умножител .The closest in technical essence to the present invention is a digital device for calculating logarithms of numbers represented by a number-pulse code, containing the first and second counters, the binary multiplier and the first OR element, and the output of the first and second counters are respectively connected to the first and second groups of inputs of the binary multiplier
Недостатком этого устройства вл етс невысока точность вычислени .A disadvantage of this device is the low accuracy of the calculation.
Цель изобретени - повышение точности вычислени .The purpose of the invention is to improve the accuracy of the calculation.
Поставленна цель достигаетс тем, что в устройство дл вычислени логарифмов чисел, представленных числоимпульсным кодом, введен третий счетчик , сдвигающий регистр, генератор импульсов, m элементов И, где m «О разр дность первого и второго счетчиков , (m-l) триггеров, (т-2) элементов ИЛИ и блок управлени , содержащий три элемента И, три элемента задержки, дЪа триггера и элемент ИЛИ, The goal is achieved by introducing a third counter into the device for calculating the logarithms of the numbers represented by a number-pulse code, shifting the register, pulse generator, m elements, And, where m "O is the first and second counters, (ml) triggers ( 2) an OR element and a control unit containing three AND elements, three delay elements, a trigger and an OR element,
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792814426A SU911523A1 (en) | 1979-08-30 | 1979-08-30 | Device for computing logarithms of numbers presented in unit-counting code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792814426A SU911523A1 (en) | 1979-08-30 | 1979-08-30 | Device for computing logarithms of numbers presented in unit-counting code |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU911523A1 true SU911523A1 (en) | 1982-03-07 |
Family
ID=20848311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792814426A SU911523A1 (en) | 1979-08-30 | 1979-08-30 | Device for computing logarithms of numbers presented in unit-counting code |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU911523A1 (en) |
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1979
- 1979-08-30 SU SU792814426A patent/SU911523A1/en active
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