DD98415A5 - - Google Patents

Info

Publication number
DD98415A5
DD98415A5 DD164797A DD16479772A DD98415A5 DD 98415 A5 DD98415 A5 DD 98415A5 DD 164797 A DD164797 A DD 164797A DD 16479772 A DD16479772 A DD 16479772A DD 98415 A5 DD98415 A5 DD 98415A5
Authority
DD
German Democratic Republic
Application number
DD164797A
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 filed Critical
Publication of DD98415A5 publication Critical patent/DD98415A5/xx

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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DD164797A 1971-08-16 1972-08-01 DD98415A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUEE1935A HU163253B (en) 1971-08-16 1971-08-16

Publications (1)

Publication Number Publication Date
DD98415A5 true DD98415A5 (en) 1973-06-12

Family

ID=10995379

Family Applications (1)

Application Number Title Priority Date Filing Date
DD164797A DD98415A5 (en) 1971-08-16 1972-08-01

Country Status (13)

Country Link
US (1) US3862366A (en)
AT (1) AT330869B (en)
BG (1) BG20835A3 (en)
CA (1) CA978093A (en)
CS (1) CS171735B2 (en)
DD (1) DD98415A5 (en)
DE (1) DE2236306B2 (en)
FR (1) FR2149449B1 (en)
GB (1) GB1407243A (en)
HU (1) HU163253B (en)
PL (1) PL78133B1 (en)
SE (1) SE386799B (en)
SU (1) SU510171A3 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1086464B (en) * 1977-09-06 1985-05-28 Selmin Sas METHOD AND DEVICES FOR OMNIDIRECTIONAL IRRADIATION OF SOUND WAVES
US4445227A (en) * 1981-12-28 1984-04-24 Magnavox Consumer Electronics Company Loudspeaker having improved directional characteristics
DE3831468A1 (en) * 1988-09-16 1990-03-22 Messerschmitt Boelkow Blohm SAILING YACHT
US5250763A (en) * 1991-10-07 1993-10-05 Brown William G Acoustical equalization device system
US5278361A (en) * 1993-02-05 1994-01-11 Thomson Consumer Electronics, Inc. Loudspeaker system
US6201878B1 (en) * 1995-09-02 2001-03-13 New Transducers Limited Portable compact disc player
US6389935B1 (en) * 1996-09-02 2002-05-21 New Transducers Limited Acoustic display screen
GB9930275D0 (en) * 1999-12-21 2000-02-09 New Transducers Ltd Loudspeakers
US20030006092A1 (en) * 2001-06-27 2003-01-09 Rpg Diffusor Systems, Inc. Sound diffuser with low frequency sound absorption
US7392880B2 (en) * 2002-04-02 2008-07-01 Gibson Guitar Corp. Dual range horn with acoustic crossover
CN101072451A (en) * 2006-05-12 2007-11-14 鸿富锦精密工业（深圳）有限公司 Sound box cover
US9113257B2 (en) * 2013-02-01 2015-08-18 William E. Collins Phase-unified loudspeakers: parallel crossovers
US20150312693A1 (en) * 2014-04-23 2015-10-29 William E. Collins Phase-unified loudspeakers: series crossovers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104730A (en) * 1963-09-24 Speaker enclosure
US2143175A (en) * 1937-10-23 1939-01-10 Samuel A Waite Sound reproducing system
GB721976A (en) * 1952-08-11 1955-01-19 Ferguson Radio Corp Improvements in and relating to sound reproducing apparatus
US3125181A (en) * 1961-06-21 1964-03-17 pawlowski
US3340956A (en) * 1965-11-01 1967-09-12 Motorola Inc Sound reproduction apparatus
BE756400A (en) * 1969-11-26 1971-03-01 Elektroakusztikai Gyar ACOUSTIC SPEAKER

Also Published As

Publication number Publication date
DE2236306A1 (en) 1973-03-15
HU163253B (en) 1973-07-28
DE2236306B2 (en) 1976-07-08
GB1407243A (en) 1975-09-24
US3862366A (en) 1975-01-21
FR2149449B1 (en) 1980-03-14
SE386799B (en) 1976-08-16
AT330869B (en) 1976-07-26
CS171735B2 (en) 1976-10-31
ATA627872A (en) 1975-10-15
SU510171A3 (en) 1976-04-05
BG20835A3 (en) 1975-12-20
FR2149449A1 (en) 1973-03-30
PL78133B1 (en) 1975-04-30
CA978093A (en) 1975-11-18

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