DK691474A - Hojttaler - Google Patents

Hojttaler

Info

Publication number
DK691474A
DK691474A DK691474A DK691474A DK691474A DK 691474 A DK691474 A DK 691474A DK 691474 A DK691474 A DK 691474A DK 691474 A DK691474 A DK 691474A DK 691474 A DK691474 A DK 691474A
Authority
DK
Denmark
Prior art keywords
speaker
Prior art date
Application number
DK691474A
Other languages
Danish (da)
English (en)
Inventor
A I Klayman
Original Assignee
Monitron Ind
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 Monitron Ind filed Critical Monitron Ind
Publication of DK691474A publication Critical patent/DK691474A/da

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
DK691474A 1974-06-07 1974-12-30 Hojttaler DK691474A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/477,383 US3930561A (en) 1974-06-07 1974-06-07 Low distortion pyramidal dispersion speaker

Publications (1)

Publication Number Publication Date
DK691474A true DK691474A (da) 1975-12-08

Family

ID=23895703

Family Applications (1)

Application Number Title Priority Date Filing Date
DK691474A DK691474A (da) 1974-06-07 1974-12-30 Hojttaler

Country Status (14)

Country Link
US (1) US3930561A (ja)
JP (1) JPS547571B2 (ja)
BE (1) BE825374A (ja)
CA (1) CA1034874A (ja)
DE (1) DE2504377A1 (ja)
DK (1) DK691474A (ja)
ES (1) ES435283A1 (ja)
FR (1) FR2274100A1 (ja)
GB (1) GB1494672A (ja)
IT (1) IT1031207B (ja)
NL (1) NL7500881A (ja)
NO (1) NO138740C (ja)
SE (1) SE399625B (ja)
ZA (1) ZA7561B (ja)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071112A (en) * 1975-09-30 1978-01-31 Electro-Voice, Incorporated Horn loudspeaker
US4171734A (en) * 1977-11-10 1979-10-23 Beta Sound, Incorporated Exponential horn speaker
US4176731A (en) * 1977-11-21 1979-12-04 Altec Corporation Two-section exponential acoustical horn
JPS57152792A (en) * 1981-03-17 1982-09-21 Pioneer Electronic Corp Horn type speaker
EP0086801A1 (en) * 1981-08-31 1983-08-31 TATTERSALL, Alan Maxwell Loudspeaker horn
JP3116119B2 (ja) * 1989-04-27 2000-12-11 ティーオーエー株式会社 スピーカ用ホーン
US5925856A (en) * 1996-06-17 1999-07-20 Meyer Sound Laboratories Incorporated Loudspeaker horn
US5827173A (en) * 1996-08-19 1998-10-27 Lindsay; Christine M. Prenatal audio communication device
DE19740423C2 (de) * 1997-09-10 2001-08-02 Ron Kulesa Anordnung zur mediengebundenen Wellenübertragung
US6712177B2 (en) 2000-05-30 2004-03-30 Mark S. Ureda Cross-fired multiple horn loudspeaker system
US7936892B2 (en) * 2002-01-14 2011-05-03 Harman International Industries, Incorporated Constant coverage waveguide
GB0202284D0 (en) 2002-01-31 2002-03-20 Martin Audio Ltd Directional loudspeaker
US7203329B2 (en) * 2004-02-11 2007-04-10 Soundtube Entertainment, Inc. Audio speaker system employing an axi-symmetrical horn with wide dispersion angle characteristics over an extended frequency range
TW200627999A (en) 2005-01-05 2006-08-01 Srs Labs Inc Phase compensation techniques to adjust for speaker deficiencies

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US997870A (en) * 1911-07-11 Household Cabinet Works Horn.
US965328A (en) * 1909-03-18 1910-07-26 Sydney I Prescott Amplifier for sound-reproducing machines.
US1381430A (en) * 1920-02-25 1921-06-14 Phipps Edward Amplifier for phonographs and the like
US1692994A (en) * 1926-02-11 1928-11-27 Mattis Frank Radio loud speaker
US1777273A (en) * 1927-03-04 1930-09-30 Sparks Withington Co Horn projector
US1754506A (en) * 1928-05-14 1930-04-15 Charles C Flynn Sound amplifier
US1996743A (en) * 1934-04-25 1935-04-09 Bell Telephone Labor Inc Acoustic device

Also Published As

Publication number Publication date
FR2274100A1 (fr) 1976-01-02
NO138740C (no) 1978-11-01
NO750016L (ja) 1975-12-09
ES435283A1 (es) 1976-11-16
SE399625B (sv) 1978-02-20
FR2274100B1 (ja) 1979-07-27
US3930561A (en) 1976-01-06
CA1034874A (en) 1978-07-18
DE2504377A1 (de) 1975-12-18
NL7500881A (nl) 1975-12-09
NO138740B (no) 1978-07-24
SE7501673L (sv) 1975-12-08
BE825374A (fr) 1975-05-29
GB1494672A (en) 1977-12-07
IT1031207B (it) 1979-04-30
JPS547571B2 (ja) 1979-04-07
AU7714375A (en) 1976-08-05
ZA7561B (en) 1976-01-28
JPS518925A (ja) 1976-01-24

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment