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AU516248B2 - Directional receiver - Google Patents
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AU516248B2 - Directional receiver - Google Patents

Directional receiver

Info

Publication number
AU516248B2
AU516248B2 AU28288/77A AU2828877A AU516248B2 AU 516248 B2 AU516248 B2 AU 516248B2 AU 28288/77 A AU28288/77 A AU 28288/77A AU 2828877 A AU2828877 A AU 2828877A AU 516248 B2 AU516248 B2 AU 516248B2
Authority
AU
Australia
Prior art keywords
directional receiver
directional
receiver
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
AU28288/77A
Other versions
AU2828877A (en
Inventor
W R Wray
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.)
Polaroid Corp
Original Assignee
Polaroid 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 Polaroid Corp filed Critical Polaroid Corp
Publication of AU2828877A publication Critical patent/AU2828877A/en
Application granted granted Critical
Publication of AU516248B2 publication Critical patent/AU516248B2/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • 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
    • H04R3/005—Circuits for transducers for combining the signals of two or more microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
AU28288/77A 1976-11-01 1977-08-26 Directional receiver Expired AU516248B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73784776A 1976-11-01 1976-11-01
USUS737847 1976-11-01

Publications (2)

Publication Number Publication Date
AU2828877A AU2828877A (en) 1979-03-01
AU516248B2 true AU516248B2 (en) 1981-05-28

Family

ID=24965550

Family Applications (1)

Application Number Title Priority Date Filing Date
AU28288/77A Expired AU516248B2 (en) 1976-11-01 1977-08-26 Directional receiver

Country Status (1)

Country Link
AU (1) AU516248B2 (en)

Also Published As

Publication number Publication date
AU2828877A (en) 1979-03-01

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