FR58186E - Microphone improvements - Google Patents

Microphone improvements

Info

Publication number
FR58186E
FR58186E FR58186DA FR58186E FR 58186 E FR58186 E FR 58186E FR 58186D A FR58186D A FR 58186DA FR 58186 E FR58186 E FR 58186E
Authority
FR
France
Prior art keywords
microphone
microphone improvements
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
Other languages
French (fr)
Inventor
Dennis Edward Skelton
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 FR58186E publication Critical patent/FR58186E/en
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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Toys (AREA)
FR58186D 1944-08-15 1948-01-22 Microphone improvements Expired FR58186E (en)

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
FR58186E true FR58186E (en) 1953-09-29

Family

ID=36952628

Family Applications (3)

Application Number Title Priority Date Filing Date
FR939111D Expired FR939111A (en) 1944-08-15 1946-04-03 Microphone improvements
FR57814D Expired FR57814E (en) 1944-08-15 1947-12-02 Microphone improvements
FR58186D Expired FR58186E (en) 1944-08-15 1948-01-22 Microphone improvements

Family Applications Before (2)

Application Number Title Priority Date Filing Date
FR939111D Expired FR939111A (en) 1944-08-15 1946-04-03 Microphone improvements
FR57814D Expired FR57814E (en) 1944-08-15 1947-12-02 Microphone improvements

Country Status (6)

Country Link
US (2) US2521744A (en)
BE (3) BE477474A (en)
CH (2) CH271258A (en)
DE (3) DE940654C (en)
FR (3) FR939111A (en)
GB (1) GB631970A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012220006A1 (en) * 2012-11-02 2014-05-08 Robert Bosch Gmbh Component with a micromechanical microphone structure
USD966235S1 (en) 2019-08-23 2022-10-11 Tymphany Acoustic Technology Limited Waveguide

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.
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
BE402491A (en) * 1933-05-11
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 (en) * 1940-10-26 1942-03-31 Fides Gmbh Capsule microphone.

Also Published As

Publication number Publication date
BE478254A (en) 1948-05-17
DE873103C (en) 1953-04-09
FR939111A (en) 1948-11-04
BE482597A (en)
CH263325A (en) 1949-08-31
DE862768C (en) 1953-01-12
US2539488A (en) 1951-01-30
FR57814E (en) 1953-09-17
US2521744A (en) 1950-09-12
CH271258A (en) 1950-10-15
DE940654C (en) 1956-03-22
GB631970A (en) 1949-11-14
BE477474A (en) 1948-05-20

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