NL77787C - - Google Patents
Info
- Publication number
- NL77787C NL77787C NL77787DA NL77787C NL 77787 C NL77787 C NL 77787C NL 77787D A NL77787D A NL 77787DA NL 77787 C NL77787 C NL 77787C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06G7/32—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices
- G06G7/34—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices of simultaneous equations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
- G06G7/163—Arrangements for performing computing operations, e.g. operational amplifiers 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)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Power Engineering (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Coils Or Transformers For Communication (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR885165X | 1950-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL77787C true NL77787C (xx) |
Family
ID=9375340
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL77787D NL77787C (xx) | 1950-05-06 | ||
| NL6811166.A NL161037B (nl) | 1950-05-06 | Werkwijze voor het bereiden van herbicide preparaten. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6811166.A NL161037B (nl) | 1950-05-06 | Werkwijze voor het bereiden van herbicide preparaten. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2785853A (xx) |
| BE (1) | BE502989A (xx) |
| CH (1) | CH292121A (xx) |
| DE (1) | DE885165C (xx) |
| FR (1) | FR1017166A (xx) |
| GB (1) | GB703178A (xx) |
| NL (2) | NL161037B (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1104613B (de) * | 1954-02-05 | 1961-04-13 | Siemens Ag | Elektrischer Mehrfachkondensator veraenderbarer Kapazitaet |
| NL224129A (xx) * | 1957-01-18 | |||
| NL224172A (xx) * | 1957-01-21 | |||
| FR1209249A (fr) * | 1958-07-11 | 1960-02-29 | Csf | Calculateur analogique permettant la résolution des systèmes d'équations linéaires |
| US3037699A (en) * | 1959-05-19 | 1962-06-05 | Richard C Lee | Pulsed analog computer |
| FR1261912A (fr) * | 1960-04-08 | 1961-05-26 | Csf | Dispositif de calcul analogique pour la résolution des systèmes d'équations |
| NL264958A (xx) * | 1960-05-24 | |||
| FR1272092A (fr) * | 1960-08-08 | 1961-09-22 | Csf | Perfectionnements aux dispositifs transformateurs pour calculateurs électriques et autres usages |
| US3265973A (en) * | 1962-05-16 | 1966-08-09 | Bell Telephone Labor Inc | Synthesis of two-port networks having periodically time-varying elements |
| DE102007052587A1 (de) * | 2007-11-03 | 2009-05-07 | Schmidt & Heinzmann Gmbh & Co. Kg | Konverter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2067444A (en) * | 1932-05-05 | 1937-01-12 | Gewertz Charles M Son | Electrical network |
| US2067443A (en) * | 1932-05-05 | 1937-01-12 | Gewertz Charles M Son | Electrical network |
| NL55441C (xx) * | 1938-05-25 | |||
| NL59904C (xx) * | 1941-12-31 |
-
0
- NL NL77787D patent/NL77787C/xx active
- NL NL6811166.A patent/NL161037B/xx unknown
- BE BE502989D patent/BE502989A/xx unknown
-
1950
- 1950-05-06 FR FR1017166D patent/FR1017166A/fr not_active Expired
-
1951
- 1951-05-02 CH CH292121D patent/CH292121A/fr unknown
- 1951-05-03 DE DEH8377A patent/DE885165C/de not_active Expired
- 1951-05-04 US US224518A patent/US2785853A/en not_active Expired - Lifetime
- 1951-05-07 GB GB10714/51A patent/GB703178A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1017166A (fr) | 1952-12-03 |
| NL161037B (nl) | |
| BE502989A (xx) | |
| CH292121A (fr) | 1953-07-31 |
| GB703178A (en) | 1954-01-27 |
| DE885165C (de) | 1953-08-03 |
| US2785853A (en) | 1957-03-19 |