NL7200624A - - Google Patents
Info
- Publication number
- NL7200624A NL7200624A NL7200624A NL7200624A NL7200624A NL 7200624 A NL7200624 A NL 7200624A NL 7200624 A NL7200624 A NL 7200624A NL 7200624 A NL7200624 A NL 7200624A NL 7200624 A NL7200624 A NL 7200624A
- 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
- G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/1427—Control of position or direction using feedback using an analogue comparing device with non-linear amplifier chain
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Automation & Control Theory (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Lens Barrels (AREA)
- Feedback Control In General (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB425471 | 1971-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7200624A true NL7200624A (en) | 1972-08-11 |
Family
ID=9773648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7200624A NL7200624A (en) | 1971-02-09 | 1972-01-17 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2165921A1 (en) |
| FR (1) | FR2124586B1 (en) |
| GB (1) | GB1332963A (en) |
| NL (1) | NL7200624A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5552007A (en) * | 1978-10-11 | 1980-04-16 | Canon Inc | Lens driving device with limitation of movable position |
| US4349771A (en) * | 1979-09-26 | 1982-09-14 | Lucas Industries Limited | Stepper motor control circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1220068A (en) * | 1967-11-01 | 1971-01-20 | Ultra Electronics Ltd | Improvements in or relating to signal selection systems |
-
1971
- 1971-12-22 GB GB1332963D patent/GB1332963A/en not_active Expired
- 1971-12-31 DE DE19712165921 patent/DE2165921A1/en active Pending
-
1972
- 1972-01-17 NL NL7200624A patent/NL7200624A/xx unknown
- 1972-02-09 FR FR7204274A patent/FR2124586B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2124586B1 (en) | 1974-08-02 |
| FR2124586A1 (en) | 1972-09-22 |
| DE2165921A1 (en) | 1972-08-24 |
| GB1332963A (en) | 1973-10-10 |