BG20835A3 - - Google Patents

Info

Publication number
BG20835A3
BG20835A3 BG21178A BG2117872A BG20835A3 BG 20835 A3 BG20835 A3 BG 20835A3 BG 21178 A BG21178 A BG 21178A BG 2117872 A BG2117872 A BG 2117872A BG 20835 A3 BG20835 A3 BG 20835A3
Authority
BG
Bulgaria
Application number
BG21178A
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 BG20835A3 publication Critical patent/BG20835A3/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)
BG21178A 1971-08-16 1972-08-10 BG20835A3 (xx)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BG20835A3 true BG20835A3 (xx) 1975-12-20

Family

ID=10995379

Family Applications (1)

Application Number Title Priority Date Filing Date
BG21178A BG20835A3 (xx) 1971-08-16 1972-08-10

Country Status (13)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1086464B (it) * 1977-09-06 1985-05-28 Selmin Sas Metodo e dispositivi per l'irradiazione omnidirezionale di onde acustiche
US4445227A (en) * 1981-12-28 1984-04-24 Magnavox Consumer Electronics Company Loudspeaker having improved directional characteristics
DE3831468A1 (de) * 1988-09-16 1990-03-22 Messerschmitt Boelkow Blohm Segelyacht
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 (zh) * 2006-05-12 2007-11-14 鸿富锦精密工业（深圳）有限公司 音箱面罩
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 (fr) * 1969-11-26 1971-03-01 Elektroakusztikai Gyar Enceinte acoustique

Also Published As

Publication number Publication date
DD98415A5 (xx) 1973-06-12
FR2149449A1 (xx) 1973-03-30
HU163253B (xx) 1973-07-28
US3862366A (en) 1975-01-21
SE386799B (sv) 1976-08-16
AT330869B (de) 1976-07-26
CS171735B2 (en) 1976-10-31
DE2236306A1 (de) 1973-03-15
PL78133B1 (xx) 1975-04-30
DE2236306B2 (de) 1976-07-08
CA978093A (en) 1975-11-18
FR2149449B1 (xx) 1980-03-14
ATA627872A (de) 1975-10-15
GB1407243A (en) 1975-09-24
SU510171A3 (ru) 1976-04-05

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