GB571870A - Improvements relating to unidirectional microphones - Google Patents

Improvements relating to unidirectional microphones

Info

Publication number
GB571870A
GB571870A GB2068843A GB2068843A GB571870A GB 571870 A GB571870 A GB 571870A GB 2068843 A GB2068843 A GB 2068843A GB 2068843 A GB2068843 A GB 2068843A GB 571870 A GB571870 A GB 571870A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
improvements relating
backplate
unidirectional microphones
zone
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
GB2068843A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2068843A priority Critical patent/GB571870A/en
Publication of GB571870A publication Critical patent/GB571870A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

571,870. Microphones. KOLB, O. K. Dec. 10, 1943, No. 20688. [Class 40 (iv)] A unidirectional condenser microphone comprises a single diaphragm 2 facing a backplate 5 which is so constructed that the centre zone of the diaphragm is responsive to pressure and the peripheral zone to pressuregradient. As shown, the backplate has closely-adjacent cupshaped recesses 10 at its centre zone and widely-spaced passages 11 at its periphery. The diaphragm 2 is preferably domeshaped as described in Specification 571,778.
GB2068843A 1943-12-10 1943-12-10 Improvements relating to unidirectional microphones Expired GB571870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2068843A GB571870A (en) 1943-12-10 1943-12-10 Improvements relating to unidirectional microphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2068843A GB571870A (en) 1943-12-10 1943-12-10 Improvements relating to unidirectional microphones

Publications (1)

Publication Number Publication Date
GB571870A true GB571870A (en) 1945-09-12

Family

ID=10150022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2068843A Expired GB571870A (en) 1943-12-10 1943-12-10 Improvements relating to unidirectional microphones

Country Status (1)

Country Link
GB (1) GB571870A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924325C (en) * 1952-10-06 1955-02-28 Nordwestdeutscher Rundfunk Ans Condenser microphone
DE1082298B (en) * 1957-04-13 1960-05-25 Rudolf Goerike Dr Small condenser microphone
US3082298A (en) * 1959-03-04 1963-03-19 Akg Akustische Kino Geraete Frequency independent directional condenser microphone

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924325C (en) * 1952-10-06 1955-02-28 Nordwestdeutscher Rundfunk Ans Condenser microphone
DE1082298B (en) * 1957-04-13 1960-05-25 Rudolf Goerike Dr Small condenser microphone
US3082298A (en) * 1959-03-04 1963-03-19 Akg Akustische Kino Geraete Frequency independent directional condenser microphone

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