AT358927B - DIRECTIONAL RECEIVING SYSTEM - Google Patents

DIRECTIONAL RECEIVING SYSTEM

Info

Publication number
AT358927B
AT358927B AT763477A AT763477A AT358927B AT 358927 B AT358927 B AT 358927B AT 763477 A AT763477 A AT 763477A AT 763477 A AT763477 A AT 763477A AT 358927 B AT358927 B AT 358927B
Authority
AT
Austria
Prior art keywords
receiving system
directional receiving
directional
receiving
Prior art date
Application number
AT763477A
Other languages
German (de)
Other versions
ATA763477A (en
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 ATA763477A publication Critical patent/ATA763477A/en
Application granted granted Critical
Publication of AT358927B publication Critical patent/AT358927B/en

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
    • 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; DEAF-AID SETS; 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; 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)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
AT763477A 1976-11-01 1977-10-25 DIRECTIONAL RECEIVING SYSTEM AT358927B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73734776A 1976-11-01 1976-11-01

Publications (2)

Publication Number Publication Date
ATA763477A ATA763477A (en) 1980-02-15
AT358927B true AT358927B (en) 1980-10-10

Family

ID=24963548

Family Applications (1)

Application Number Title Priority Date Filing Date
AT763477A AT358927B (en) 1976-11-01 1977-10-25 DIRECTIONAL RECEIVING SYSTEM

Country Status (8)

Country Link
JP (1) JPS5357020A (en)
AT (1) AT358927B (en)
CA (1) CA1091588A (en)
CH (1) CH622395A5 (en)
DE (1) DE2748288A1 (en)
FR (1) FR2369766A1 (en)
GB (1) GB1589691A (en)
IT (1) IT1088164B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334740A (en) * 1978-09-12 1982-06-15 Polaroid Corporation Receiving system having pre-selected directional response
JPS5910119B2 (en) * 1979-04-26 1984-03-07 日本ビクター株式会社 variable directional microphone
DE3020247C2 (en) * 1980-05-28 1982-09-02 Franz Vertriebsgesellschaft mbH, 7634 Kippenheim Method and arrangement for converting sound waves into digital electrical signals with the aid of electroacoustic converters
JPS5954039U (en) * 1982-09-30 1984-04-09 株式会社ノーリツ Circulating hot water bath pot
FR2559325B1 (en) * 1984-02-06 1986-08-22 Renault APPARATUS FOR CAPTURING AND TRANSMITTING THE WORD OF A PERSON PLACED IN A DISTURBED ENVIRONMENT IN ORDER TO PERFORM A PROCESSING OF THIS WORD
JPS63132241U (en) * 1987-02-20 1988-08-30
US5463694A (en) * 1993-11-01 1995-10-31 Motorola Gradient directional microphone system and method therefor
US5515445A (en) * 1994-06-30 1996-05-07 At&T Corp. Long-time balancing of omni microphones
WO2021117715A1 (en) * 2019-12-10 2021-06-17 テルモ株式会社 Packaging box and medical equipment packaged by packaging box

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502811A (en) * 1967-12-11 1970-03-24 Bell Telephone Labor Inc Directional microphone with frequency independent beamwidth
JPS5132445Y2 (en) * 1971-04-09 1976-08-13
JPS4990103A (en) * 1972-12-26 1974-08-28
GB1512514A (en) * 1974-07-12 1978-06-01 Nat Res Dev Microphone assemblies
DE2439634B1 (en) * 1974-08-19 1976-03-18 Schoeps, Karl, Dr.-Ing., 7500 Karlsruhe ARRANGEMENT FOR DIRECTED SOUND RECEPTION

Also Published As

Publication number Publication date
FR2369766B1 (en) 1984-03-23
DE2748288A1 (en) 1978-05-03
GB1589691A (en) 1981-05-20
CH622395A5 (en) 1981-03-31
FR2369766A1 (en) 1978-05-26
ATA763477A (en) 1980-02-15
IT1088164B (en) 1985-06-10
CA1091588A (en) 1980-12-16
DE2748288C2 (en) 1989-11-02
JPS5623360B2 (en) 1981-05-30
JPS5357020A (en) 1978-05-24

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee