ZA75246B - Improvements in or relating to microphone arrangements for use in telephone apparatus - Google Patents

Improvements in or relating to microphone arrangements for use in telephone apparatus

Info

Publication number
ZA75246B
ZA75246B ZA00750246A ZA75246A ZA75246B ZA 75246 B ZA75246 B ZA 75246B ZA 00750246 A ZA00750246 A ZA 00750246A ZA 75246 A ZA75246 A ZA 75246A ZA 75246 B ZA75246 B ZA 75246B
Authority
ZA
South Africa
Prior art keywords
relating
telephone apparatus
microphone arrangements
microphone
arrangements
Prior art date
Application number
ZA00750246A
Inventor
W Mellors
A Carr
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of ZA75246B publication Critical patent/ZA75246B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/04—Circuits for transducers for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
ZA00750246A 1974-01-15 1975-01-14 Improvements in or relating to microphone arrangements for use in telephone apparatus ZA75246B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1846/74A GB1493591A (en) 1974-01-15 1974-01-15 Microphone arrangements for use in telephone apparatus

Publications (1)

Publication Number Publication Date
ZA75246B true ZA75246B (en) 1976-01-28

Family

ID=9729035

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00750246A ZA75246B (en) 1974-01-15 1975-01-14 Improvements in or relating to microphone arrangements for use in telephone apparatus

Country Status (2)

Country Link
GB (1) GB1493591A (en)
ZA (1) ZA75246B (en)

Also Published As

Publication number Publication date
GB1493591A (en) 1977-11-30
AU7728075A (en) 1976-07-15

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