NL275027A - - Google Patents

Info

Publication number
NL275027A
NL275027A NL275027DA NL275027A NL 275027 A NL275027 A NL 275027A NL 275027D A NL275027D A NL 275027DA NL 275027 A NL275027 A NL 275027A
Authority
NL
Netherlands
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.)
Publication of NL275027A publication Critical patent/NL275027A/xx

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
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/24—Constructional features of resonators of material which is not piezoelectric, electrostrictive, or magnetostrictive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Pressure Sensors (AREA)
NL275027D 1961-03-09 NL275027A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES0072898 1961-03-09

Publications (1)

Publication Number Publication Date
NL275027A true NL275027A (enrdf_load_stackoverflow)

Family

ID=7503549

Family Applications (2)

Application Number Title Priority Date Filing Date
NL275714D NL275714A (enrdf_load_stackoverflow) 1961-03-09
NL275027D NL275027A (enrdf_load_stackoverflow) 1961-03-09

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL275714D NL275714A (enrdf_load_stackoverflow) 1961-03-09

Country Status (8)

Country Link
US (1) US3239611A (enrdf_load_stackoverflow)
BE (1) BE614837A (enrdf_load_stackoverflow)
CH (1) CH403864A (enrdf_load_stackoverflow)
DE (1) DE1416334B2 (enrdf_load_stackoverflow)
DK (1) DK117782B (enrdf_load_stackoverflow)
FI (1) FI40808B (enrdf_load_stackoverflow)
NL (2) NL275027A (enrdf_load_stackoverflow)
SE (1) SE300021B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624315A (en) * 1967-01-23 1971-11-30 Max E Broce Transducer apparatus and transducer amplifier system utilizing insulated gate semiconductor field effect devices
US3673354A (en) * 1969-05-08 1972-06-27 Matsushita Electric Ind Co Ltd Semiconductor stress transducer
US3691316A (en) * 1969-05-09 1972-09-12 Matsushita Electric Ind Co Ltd Semiconductor stress transducer
JP7118928B2 (ja) * 2018-08-03 2022-08-16 東京エレクトロン株式会社 半導体ウエハの局所的歪みの特定に基づく全体的ウエハ歪みの改善

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171793A (en) * 1937-02-24 1939-09-05 Aurex Corp Microphone
GB678766A (en) * 1950-05-24 1952-09-10 Fortiphone Ltd Improvements in or relating to microphones
DE970420C (de) * 1951-03-10 1958-09-18 Siemens Ag Elektrisches Halbleitergeraet
DE1006169B (de) * 1952-02-07 1957-04-11 Siemes & Halske Ag Anordnung zur Umwandlung mechanischer in elektrische Schwingungen
US2929885A (en) * 1953-05-20 1960-03-22 Rca Corp Semiconductor transducers
US2866014A (en) * 1955-10-31 1958-12-23 Bell Telephone Labor Inc Piezoresistive acoustic transducer
US2898477A (en) * 1955-10-31 1959-08-04 Bell Telephone Labor Inc Piezoelectric field effect semiconductor device
US3003900A (en) * 1957-11-12 1961-10-10 Pacific Semiconductors Inc Method for diffusing active impurities into semiconductor materials
US2907672A (en) * 1958-08-25 1959-10-06 Ford Motor Co Aurous coating on an optical element
US3031634A (en) * 1960-04-04 1962-04-24 Century Geophysical Corp Strain gauge

Also Published As

Publication number Publication date
FI40808B (enrdf_load_stackoverflow) 1969-02-28
DK117782B (da) 1970-06-01
NL275714A (enrdf_load_stackoverflow) 1900-01-01
US3239611A (en) 1966-03-08
DE1416334B2 (de) 1972-09-28
SE300021B (enrdf_load_stackoverflow) 1968-04-01
DE1416334A1 (de) 1969-01-09
CH403864A (de) 1965-12-15
BE614837A (fr) 1962-09-10

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