GB127846A - An Improvement relating to Telephone Transmitters. - Google Patents

An Improvement relating to Telephone Transmitters.

Info

Publication number
GB127846A
GB127846A GB765617A GB765617A GB127846A GB 127846 A GB127846 A GB 127846A GB 765617 A GB765617 A GB 765617A GB 765617 A GB765617 A GB 765617A GB 127846 A GB127846 A GB 127846A
Authority
GB
United Kingdom
Prior art keywords
receiver
microphones
telephone
improvement relating
telephone transmitters
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
GB765617A
Inventor
Basil Alexander Pilkington
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 GB765617A priority Critical patent/GB127846A/en
Publication of GB127846A publication Critical patent/GB127846A/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

127,846. Pilkington, B. A. May 29, 1917. Telephone systems and apparatus.-A telephone transmitter arrangement consists of two microphones or groups of microphones connected in independent circuits, each of which contains the winding of a telephone receiver. The receiver windings act in opposition upon the diaphragm of the receiver, so that local sounds produce no effect upon the receiver; while one of the microphones or group of microphones is exposed to sounds which are to operate the receiver.
GB765617A 1917-05-29 1917-05-29 An Improvement relating to Telephone Transmitters. Expired GB127846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB765617A GB127846A (en) 1917-05-29 1917-05-29 An Improvement relating to Telephone Transmitters.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB765617A GB127846A (en) 1917-05-29 1917-05-29 An Improvement relating to Telephone Transmitters.

Publications (1)

Publication Number Publication Date
GB127846A true GB127846A (en) 1919-06-19

Family

ID=32343000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB765617A Expired GB127846A (en) 1917-05-29 1917-05-29 An Improvement relating to Telephone Transmitters.

Country Status (1)

Country Link
GB (1) GB127846A (en)

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