BE691031A - - Google Patents
Info
- Publication number
- BE691031A BE691031A BE691031DA BE691031A BE 691031 A BE691031 A BE 691031A BE 691031D A BE691031D A BE 691031DA BE 691031 A BE691031 A BE 691031A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/64—Velocity measuring systems using range gates
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Amplifiers (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Electron Sources, Ion Sources (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR42716A FR1490483A (fr) | 1965-12-17 | 1965-12-17 | Système de filtre électrique à bande passante étroite utilisant un cristal |
| FR79514A FR91483E (fr) | 1965-12-17 | 1966-10-11 | Système de filtre électrique à bande passante étroite utilisant un cristal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE691031A true BE691031A (en:Method) | 1967-06-12 |
Family
ID=26167791
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE691031D BE691031A (en:Method) | 1965-12-17 | 1966-12-12 | |
| BE704702D BE704702A (en:Method) | 1965-12-17 | 1967-10-05 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE704702D BE704702A (en:Method) | 1965-12-17 | 1967-10-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3377588A (en:Method) |
| BE (2) | BE691031A (en:Method) |
| DE (1) | DE1541001A1 (en:Method) |
| FR (2) | FR1490483A (en:Method) |
| GB (1) | GB1163604A (en:Method) |
| NL (1) | NL6713783A (en:Method) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1277374B (de) * | 1964-09-30 | 1968-09-12 | Hitachi Ltd | Mechanisch-elektrischer Wandler |
| GB1207974A (en) * | 1966-11-17 | 1970-10-07 | Clevite Corp | Frequency selective apparatus including a piezoelectric device |
| US3634787A (en) * | 1968-01-23 | 1972-01-11 | Westinghouse Electric Corp | Electromechanical tuning apparatus particularly for microelectronic components |
| US3624465A (en) * | 1968-06-26 | 1971-11-30 | Rca Corp | Heterojunction semiconductor transducer having a region which is piezoelectric |
| US3582540A (en) * | 1969-04-17 | 1971-06-01 | Zenith Radio Corp | Signal translating apparatus using surface wave acoustic device |
| US3622712A (en) * | 1969-08-29 | 1971-11-23 | Rca Corp | Device employing selenium-semiconductor heterojunction |
| DE2019780C3 (de) * | 1970-04-23 | 1974-07-18 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Verfahren zum nachträglichen Abgleichen der Laufzeit von elektroakustischen Verzögerungsleitungen auf piezoelektrischen Keramiksubstraten |
| US3760172A (en) * | 1970-06-15 | 1973-09-18 | Univ Leland Stanford Junior | Method of and apparatus for signal processing |
| US3792321A (en) * | 1971-08-26 | 1974-02-12 | F Seifert | Piezoelectric semiconductor devices in which sound energy increases the breakdown voltage and power of capabilities |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL277613A (en:Method) * | 1961-04-26 | 1900-01-01 |
-
1965
- 1965-12-17 FR FR42716A patent/FR1490483A/fr not_active Expired
-
1966
- 1966-10-11 FR FR79514A patent/FR91483E/fr not_active Expired
- 1966-12-07 GB GB54832/66A patent/GB1163604A/en not_active Expired
- 1966-12-07 US US599962A patent/US3377588A/en not_active Expired - Lifetime
- 1966-12-12 BE BE691031D patent/BE691031A/xx unknown
- 1966-12-16 DE DE19661541001 patent/DE1541001A1/de active Pending
-
1967
- 1967-10-05 BE BE704702D patent/BE704702A/xx unknown
- 1967-10-11 NL NL6713783A patent/NL6713783A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1163604A (en) | 1969-09-10 |
| FR91483E (fr) | 1968-06-21 |
| DE1541001A1 (de) | 1969-07-17 |
| FR1490483A (fr) | 1967-08-04 |
| US3377588A (en) | 1968-04-09 |
| BE704702A (en:Method) | 1968-04-05 |
| NL6713783A (en:Method) | 1968-04-16 |