ES341673A1 - Dispositivo que comprende un pick-up de material semicon- ductor para convertir vibraciones de presion en oscilacioneseelectricas. - Google Patents

Dispositivo que comprende un pick-up de material semicon- ductor para convertir vibraciones de presion en oscilacioneseelectricas.

Info

Publication number
ES341673A1
ES341673A1 ES341673A ES341673A ES341673A1 ES 341673 A1 ES341673 A1 ES 341673A1 ES 341673 A ES341673 A ES 341673A ES 341673 A ES341673 A ES 341673A ES 341673 A1 ES341673 A1 ES 341673A1
Authority
ES
Spain
Prior art keywords
pressure
zone
pickup
insulating layer
sensitive transistors
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES341673A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES341673A1 publication Critical patent/ES341673A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/006—Transducers other than those covered by groups H04R9/00 - H04R21/00 using solid state devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Measuring Fluid Pressure (AREA)
  • Bipolar Transistors (AREA)
ES341673A 1966-06-14 1967-06-12 Dispositivo que comprende un pick-up de material semicon- ductor para convertir vibraciones de presion en oscilacioneseelectricas. Expired ES341673A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6608194A NL6608194A (es) 1966-06-14 1966-06-14

Publications (1)

Publication Number Publication Date
ES341673A1 true ES341673A1 (es) 1968-07-01

Family

ID=19796880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES341673A Expired ES341673A1 (es) 1966-06-14 1967-06-12 Dispositivo que comprende un pick-up de material semicon- ductor para convertir vibraciones de presion en oscilacioneseelectricas.

Country Status (9)

Country Link
US (1) US3509383A (es)
AT (1) AT282227B (es)
BE (1) BE699814A (es)
CH (1) CH466598A (es)
DE (1) DE1572477A1 (es)
ES (1) ES341673A1 (es)
GB (1) GB1179606A (es)
NL (1) NL6608194A (es)
SE (1) SE314532B (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236121A (en) * 1978-04-05 1980-11-25 Massachusetts Institute Of Technology Oscillators including charge-flow transistor logic elements
SE468122B (sv) * 1990-04-27 1992-11-09 Svenska Rotor Maskiner Ab Rotor foer en skruvrotormaskin, en skruvrotormaskin samt ett foerfarande foer tillverkning av en rotor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250654B (es) * 1963-09-13 1967-09-21
DE1231033B (de) * 1963-09-13 1966-12-22 Siemens Ag Druckempfindliches Halbleiterbauelement mit drei Zonen abwechselnd entgegengesetztenLeitungstyps und einem Stempel auf einer Zone
US3353012A (en) * 1963-10-01 1967-11-14 Allis Chalmers Mfg Co Transistorized multiplication circuit
DE1239871B (de) * 1963-12-09 1967-05-03 Siemens Ag Druckempfindliche Halbleiteranordnung

Also Published As

Publication number Publication date
SE314532B (es) 1969-09-08
BE699814A (es) 1967-12-12
NL6608194A (es) 1967-12-15
GB1179606A (en) 1970-01-28
AT282227B (de) 1970-06-25
CH466598A (de) 1968-12-15
US3509383A (en) 1970-04-28
DE1572477A1 (de) 1970-02-19

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