NL191962A - - Google Patents
Info
- Publication number
- NL191962A NL191962A NL191962DA NL191962A NL 191962 A NL191962 A NL 191962A NL 191962D A NL191962D A NL 191962DA NL 191962 A NL191962 A NL 191962A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
- G01S15/10—Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
- G01S15/101—Particularities of the measurement of distance
-
- 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
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
- G06G7/188—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using electromechanical elements
-
- 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
- G06G7/32—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices
- G06G7/38—Arrangements for performing computing operations, e.g. operational amplifiers for solving of equations or inequations; for matrices of differential or integral 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
- G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S367/00—Communications, electrical: acoustic wave systems and devices
- Y10S367/902—Speed of sound compensation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Radar, Positioning & Navigation (AREA)
- Software Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Acoustics & Sound (AREA)
- Mathematical Analysis (AREA)
- Algebra (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR657361 | 1953-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL191962A true NL191962A (en:Method) |
Family
ID=8698467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL191962D NL191962A (en:Method) | 1953-10-31 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2965876A (en:Method) |
| FR (1) | FR1178401A (en:Method) |
| GB (1) | GB817169A (en:Method) |
| NL (1) | NL191962A (en:Method) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3230359A (en) * | 1962-06-11 | 1966-01-18 | Gen Precision Inc | Cosine function integrator |
| US3442264A (en) * | 1964-06-04 | 1969-05-06 | Joseph R Levitt | Data processing method and means |
| US3428795A (en) * | 1964-12-28 | 1969-02-18 | Mc Donnell Douglas Corp | Sonic ray tracer |
| DE2045276A1 (de) * | 1970-09-12 | 1972-03-16 | Krupp Gmbh | Verfahren und Vorrichtung zur Entfernungsermittlung nach der Rückstrahlortungsmethode |
| US4982384A (en) * | 1971-09-27 | 1991-01-01 | The United States Of America As Represented By The Secretary Of The Navy | Split beam sonar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2760180A (en) * | 1949-10-06 | 1956-08-21 | Sipkin George | Long range explosive sonobuoy |
-
0
- NL NL191962D patent/NL191962A/xx unknown
-
1953
- 1953-10-31 FR FR1178401D patent/FR1178401A/fr not_active Expired
-
1954
- 1954-10-21 GB GB30331/54A patent/GB817169A/en not_active Expired
- 1954-10-25 US US464283A patent/US2965876A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2965876A (en) | 1960-12-20 |
| GB817169A (en) | 1959-07-22 |
| FR1178401A (fr) | 1959-05-11 |