DE940654C - Koernermikrophon - Google Patents

Koernermikrophon

Info

Publication number
DE940654C
DE940654C DEST2548A DEST002548A DE940654C DE 940654 C DE940654 C DE 940654C DE ST2548 A DEST2548 A DE ST2548A DE ST002548 A DEST002548 A DE ST002548A DE 940654 C DE940654 C DE 940654C
Authority
DE
Germany
Prior art keywords
electrode
insulating washer
electroacoustic transducer
microphone
annular
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
DEST2548A
Other languages
German (de)
English (en)
Inventor
Lyndall Crossthwaite Pocock
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB15574/44A external-priority patent/GB594082A/en
Priority claimed from GB21942/45A external-priority patent/GB616158A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of DE940654C publication Critical patent/DE940654C/de
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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material
    • 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
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Toys (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DEST2548A 1944-08-15 1950-10-01 Koernermikrophon Expired DE940654C (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB15574/44A GB594082A (en) 1945-08-27 1944-08-15 Improvements in or relating to microphones
GB21942/45A GB616158A (en) 1944-08-15 1945-08-27 Improvements in or relating to electro-acoustic devices
GB2131/47A GB631970A (en) 1944-08-15 1947-01-23 Improvements in or relating to acoustic diaphragms

Publications (1)

Publication Number Publication Date
DE940654C true DE940654C (de) 1956-03-22

Family

ID=36952628

Family Applications (3)

Application Number Title Priority Date Filing Date
DEST2548A Expired DE940654C (de) 1944-08-15 1950-10-01 Koernermikrophon
DEST2537A Expired DE873103C (de) 1944-08-15 1950-10-01 Akustische Membran fuer elektroakustische Wandler
DEST2523A Expired DE862768C (de) 1944-08-15 1950-10-31 Elektroakustischer Wandler

Family Applications After (2)

Application Number Title Priority Date Filing Date
DEST2537A Expired DE873103C (de) 1944-08-15 1950-10-01 Akustische Membran fuer elektroakustische Wandler
DEST2523A Expired DE862768C (de) 1944-08-15 1950-10-31 Elektroakustischer Wandler

Country Status (6)

Country Link
US (2) US2521744A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (3) BE477474A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (2) CH271258A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (3) DE940654C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (3) FR939111A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB631970A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220006A1 (de) * 2012-11-02 2014-05-08 Robert Bosch Gmbh Bauelement mit einer mikromechanischen Mikrofonstruktur
USD966235S1 (en) * 2019-08-23 2022-10-11 Tymphany Acoustic Technology Limited Waveguide

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771454A (fr) * 1933-05-11 1934-10-09 Materiel Telephonique Perfectionnements aux microphones

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1141107A (en) * 1902-01-27 1915-06-01 Kellogg Switchboard & Supply Telephone-transmitter.
AU107204B (en) * 1904-07-15 1905-06-27 And Improvements inthe wheels of steam or gas turbines
US1226886A (en) * 1913-05-13 1917-05-22 New Jersey Patent Co Telephone-transmitter.
US1352939A (en) * 1917-02-24 1920-09-14 Western Electric Co Telephone-transmitter
US1869230A (en) * 1929-08-16 1932-07-26 Philadelphia Storage Battery Electrical element
US1848433A (en) * 1929-09-09 1932-03-08 Magnavox Co Loud speaker element
US1846351A (en) * 1930-06-13 1932-02-23 Murkham Leonard Walter Electrodynamic sound-reproducing device
US1943425A (en) * 1931-12-26 1934-01-16 Kellogg Switchboard & Supply Diaphragm
US2069242A (en) * 1933-01-19 1937-02-02 George A Graham Electroacoustic energy converting system
US1930328A (en) * 1933-01-25 1933-10-10 Tichenor Sound reproducing diaphragm
GB425558A (en) * 1933-10-26 1935-03-18 Alfred Graham & Co Ltd Improvements relating to telephones
GB425186A (en) * 1933-11-24 1935-03-08 Alfred Graham & Co Ltd Improvements relating to telephones
US2043833A (en) * 1934-11-12 1936-06-09 Abraham I Klotz Protecting framing for brief cases
US2191992A (en) * 1937-03-31 1940-02-27 Int Standard Electric Corp Telephone transmitter
US2293078A (en) * 1939-12-05 1942-08-18 B A Proctor Company Inc Microphone
CH220358A (de) * 1940-10-26 1942-03-31 Fides Gmbh Kapselmikrofon.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR771454A (fr) * 1933-05-11 1934-10-09 Materiel Telephonique Perfectionnements aux microphones

Also Published As

Publication number Publication date
FR57814E (fr) 1953-09-17
DE873103C (de) 1953-04-09
CH263325A (de) 1949-08-31
FR939111A (fr) 1948-11-04
GB631970A (en) 1949-11-14
BE482597A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE862768C (de) 1953-01-12
BE477474A (fr) 1948-05-20
US2521744A (en) 1950-09-12
FR58186E (fr) 1953-09-29
BE478254A (fr) 1948-05-17
CH271258A (fr) 1950-10-15
US2539488A (en) 1951-01-30

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