AU6192973A - Carbon microphone - Google Patents

Carbon microphone

Info

Publication number
AU6192973A
AU6192973A AU61929/73A AU6192973A AU6192973A AU 6192973 A AU6192973 A AU 6192973A AU 61929/73 A AU61929/73 A AU 61929/73A AU 6192973 A AU6192973 A AU 6192973A AU 6192973 A AU6192973 A AU 6192973A
Authority
AU
Australia
Prior art keywords
carbon microphone
microphone
carbon
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
AU61929/73A
Inventor
Anthony Newton Lawson
William Donald Cragg
Henleyfrank Sterling
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
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of AU6192973A publication Critical patent/AU6192973A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Lubricants (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Telephone Set Structure (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Carbon And Carbon Compounds (AREA)
AU61929/73A 1972-11-24 1973-10-29 Carbon microphone Expired AU6192973A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5431472A GB1360559A (en) 1972-11-24 1972-11-24 Carbon microphone

Publications (1)

Publication Number Publication Date
AU6192973A true AU6192973A (en) 1975-05-01

Family

ID=10470609

Family Applications (1)

Application Number Title Priority Date Filing Date
AU61929/73A Expired AU6192973A (en) 1972-11-24 1973-10-29 Carbon microphone

Country Status (15)

Country Link
US (1) US3859478A (en)
JP (1) JPS4984430A (en)
AR (1) AR199010A1 (en)
AT (1) ATA982873A (en)
AU (1) AU6192973A (en)
BE (1) BE807626A (en)
BR (1) BR7308746D0 (en)
CA (1) CA995349A (en)
CH (1) CH558626A (en)
DE (1) DE2358243A1 (en)
ES (1) ES420820A1 (en)
FR (1) FR2208266B3 (en)
GB (1) GB1360559A (en)
IT (1) IT1001915B (en)
NL (1) NL7315631A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541570A (en) * 1994-12-09 1996-07-30 Force Imaging Technologies, Inc. Force sensing ink, method of making same and improved force sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US486244A (en) * 1892-11-15 Charles clamond
US919908A (en) * 1908-07-13 1909-04-27 Harold Sheen Martin Electrical-resistance device.
US1086726A (en) * 1909-03-11 1914-02-10 Johan Burchardt Opsahl Resistance unit.

Also Published As

Publication number Publication date
DE2358243A1 (en) 1974-05-30
FR2208266B3 (en) 1976-10-08
US3859478A (en) 1975-01-07
BE807626A (en) 1974-05-22
NL7315631A (en) 1974-05-28
ES420820A1 (en) 1976-04-01
CA995349A (en) 1976-08-17
ATA982873A (en) 1976-05-15
BR7308746D0 (en) 1974-08-22
GB1360559A (en) 1974-07-17
IT1001915B (en) 1976-04-30
JPS4984430A (en) 1974-08-14
CH558626A (en) 1975-01-31
AR199010A1 (en) 1974-07-31
FR2208266A1 (en) 1974-06-21

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