JPS513150A - - Google Patents
Info
- Publication number
- JPS513150A JPS513150A JP49072938A JP7293874A JPS513150A JP S513150 A JPS513150 A JP S513150A JP 49072938 A JP49072938 A JP 49072938A JP 7293874 A JP7293874 A JP 7293874A JP S513150 A JPS513150 A JP S513150A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06J—HYBRID COMPUTING ARRANGEMENTS
- G06J1/00—Hybrid computing arrangements
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
- G06F7/62—Performing operations exclusively by counting total number of pulses ; Multiplication, division or derived operations using combined denominational and incremental processing by counters, i.e. without column shift
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Software Systems (AREA)
- Fuzzy Systems (AREA)
- Evolutionary Computation (AREA)
- Automation & Control Theory (AREA)
- Computer Hardware Design (AREA)
- Computational Mathematics (AREA)
- Computing Systems (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49072938A JPS5911151B2 (ja) | 1974-06-25 | 1974-06-25 | デジタル式対数関数発生装置 |
| US05/581,886 US3988600A (en) | 1974-06-25 | 1975-05-29 | Digital logarithmic function generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49072938A JPS5911151B2 (ja) | 1974-06-25 | 1974-06-25 | デジタル式対数関数発生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS513150A true JPS513150A (ja) | 1976-01-12 |
| JPS5911151B2 JPS5911151B2 (ja) | 1984-03-13 |
Family
ID=13503796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49072938A Expired JPS5911151B2 (ja) | 1974-06-25 | 1974-06-25 | デジタル式対数関数発生装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3988600A (ja) |
| JP (1) | JPS5911151B2 (ja) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089060A (en) * | 1976-10-15 | 1978-05-09 | Mitchell Donald K | Digital logarithmic apparatus |
| US4293917A (en) * | 1979-11-28 | 1981-10-06 | Stanford Associates, Inc. | Non-linear function generator |
| US4700319A (en) * | 1985-06-06 | 1987-10-13 | The United States Of America As Represented By The Secretary Of The Air Force | Arithmetic pipeline for image processing |
| US7606850B2 (en) * | 2005-03-30 | 2009-10-20 | Lockheed Martin Corporation | Method and apparatus for providing a base-2 logarithm approximation to a binary number |
| CN104035746B (zh) * | 2014-06-06 | 2017-02-15 | 中国科学院长春光学精密机械与物理研究所 | 简易对数变化电压发生电路 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402285A (en) * | 1964-09-22 | 1968-09-17 | Wang Laboratories | Calculating apparatus |
| US3436533A (en) * | 1965-11-29 | 1969-04-01 | Us Navy | Digital log computer |
| US3654450A (en) * | 1970-04-03 | 1972-04-04 | Joseph A Webb | Digital signal generator synthesizer |
| US3698631A (en) * | 1970-11-19 | 1972-10-17 | Bell Telephone Labor Inc | Apparatus for generating a logarithmically related series of digitally coded signal quantities |
| US3866024A (en) * | 1973-10-23 | 1975-02-11 | Scope Inc | Digital log-time generator |
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1974
- 1974-06-25 JP JP49072938A patent/JPS5911151B2/ja not_active Expired
-
1975
- 1975-05-29 US US05/581,886 patent/US3988600A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3988600A (en) | 1976-10-26 |
| JPS5911151B2 (ja) | 1984-03-13 |