FR7177E - Telephone microphone and receiver - Google Patents

Telephone microphone and receiver

Info

Publication number
FR7177E
FR7177E FR7177A FR7177DA FR7177E FR 7177 E FR7177 E FR 7177E FR 7177 A FR7177 A FR 7177A FR 7177D A FR7177D A FR 7177DA FR 7177 E FR7177 E FR 7177E
Authority
FR
France
Prior art keywords
receiver
telephone microphone
microphone
telephone
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
FR7177A
Other languages
French (fr)
Inventor
Victorien Tardieu
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
Publication date
Application granted granted Critical
Publication of FR7177E publication Critical patent/FR7177E/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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
    • 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
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • 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
    • 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)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
FR7177A Telephone microphone and receiver Expired FR7177E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9007T

Publications (1)

Publication Number Publication Date
FR7177E true FR7177E (en) 1907-06-01

Family

ID=8623419

Family Applications (11)

Application Number Title Priority Date Filing Date
FR8751A Expired FR8751E (en) Telephone microphone and receiver
FR5890A Expired FR5890E (en) Telephone microphone and receiver
FR12980A Expired FR12980E (en) Microphone and telephone receiver
FR13175A Expired FR13175E (en) Telephone microphone and receiver
FR7909D Active FR7909E (en)
FR7177A Expired FR7177E (en) Telephone microphone and receiver
FR9109D Active FR9109E (en)
FR11485A Expired FR11485E (en) Method and device for suppressing valve wobble
FR9007A Expired FR9007E (en) Telephone microphone and receiver
FR4992A Expired FR4992E (en) Telephone microphone and receiver
FR342353A Expired FR342353A (en) 1904-04-15 Telephone microphone and receiver

Family Applications Before (5)

Application Number Title Priority Date Filing Date
FR8751A Expired FR8751E (en) Telephone microphone and receiver
FR5890A Expired FR5890E (en) Telephone microphone and receiver
FR12980A Expired FR12980E (en) Microphone and telephone receiver
FR13175A Expired FR13175E (en) Telephone microphone and receiver
FR7909D Active FR7909E (en)

Family Applications After (5)

Application Number Title Priority Date Filing Date
FR9109D Active FR9109E (en)
FR11485A Expired FR11485E (en) Method and device for suppressing valve wobble
FR9007A Expired FR9007E (en) Telephone microphone and receiver
FR4992A Expired FR4992E (en) Telephone microphone and receiver
FR342353A Expired FR342353A (en) 1904-04-15 Telephone microphone and receiver

Country Status (1)

Country Link
FR (11) FR342353A (en)

Also Published As

Publication number Publication date
FR13175E (en) 1911-02-09
FR7909E (en)
FR4992E (en) 1905-11-25
FR12980E (en) 1910-12-31
FR5890E (en) 1906-07-13
FR9109E (en)
FR342353A (en) 1904-09-06
FR8751E (en) 1908-06-23
FR9007E (en) 1908-08-11
FR11485E (en) 1910-02-25

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