NL224172A - - Google Patents
Info
- Publication number
- NL224172A NL224172A NL224172DA NL224172A NL 224172 A NL224172 A NL 224172A NL 224172D A NL224172D A NL 224172DA NL 224172 A NL224172 A NL 224172A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
- G06G7/32—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for solving of equations or inequations; for matrices
- G06G7/34—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for solving of equations or inequations; for matrices of simultaneous equations
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for multiplication or division
- G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers specially adapted therefor for multiplication or division using a variable impedance controlled by one of the input signals, variable amplification or transfer function
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Power Engineering (AREA)
- Algebra (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR729984 | 1957-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL224172A true NL224172A (https=) |
Family
ID=8704075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL224172D NL224172A (https=) | 1957-01-21 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3009640A (https=) |
| FR (1) | FR1164918A (https=) |
| NL (1) | NL224172A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3289116A (en) * | 1962-03-21 | 1966-11-29 | Bell Telephone Labor Inc | Prescriptive transformerless networks |
| US3265973A (en) * | 1962-05-16 | 1966-08-09 | Bell Telephone Labor Inc | Synthesis of two-port networks having periodically time-varying elements |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1969836A (en) * | 1932-10-27 | 1934-08-14 | Mihran M Dolmage | Negative impedance |
| US2137696A (en) * | 1934-12-18 | 1938-11-22 | Mouradian Hughes | Negative impedance repeater system |
| NL161037B (nl) * | 1950-05-06 | Bayer Ag | Werkwijze voor het bereiden van herbicide preparaten. |
-
0
- NL NL224172D patent/NL224172A/xx unknown
-
1957
- 1957-01-21 FR FR1164918D patent/FR1164918A/fr not_active Expired
-
1958
- 1958-01-16 US US709388A patent/US3009640A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3009640A (en) | 1961-11-21 |
| FR1164918A (fr) | 1958-10-15 |