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
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of BE691031A publication Critical patent/BE691031A/xx

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
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Electromagnetism (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Optics & Photonics (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Amplifiers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE691031D 1965-12-17 1966-12-12 BE691031A (ja)

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 (ja) 1967-06-12

Family

ID=26167791

Family Applications (2)

Application Number Title Priority Date Filing Date
BE691031D BE691031A (ja) 1965-12-17 1966-12-12
BE704702D BE704702A (ja) 1965-12-17 1967-10-05

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE704702D BE704702A (ja) 1965-12-17 1967-10-05

Country Status (6)

Country Link
US (1) US3377588A (ja)
BE (2) BE691031A (ja)
DE (1) DE1541001A1 (ja)
FR (2) FR1490483A (ja)
GB (1) GB1163604A (ja)
NL (1) NL6713783A (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277613A (ja) * 1961-04-26 1900-01-01

Also Published As

Publication number Publication date
FR91483E (fr) 1968-06-21
DE1541001A1 (de) 1969-07-17
NL6713783A (ja) 1968-04-16
BE704702A (ja) 1968-04-05
US3377588A (en) 1968-04-09
GB1163604A (en) 1969-09-10
FR1490483A (fr) 1967-08-04

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