GB1499407A - Directional loudspeaker - Google Patents

Directional loudspeaker

Info

Publication number
GB1499407A
GB1499407A GB17471/75A GB1747175A GB1499407A GB 1499407 A GB1499407 A GB 1499407A GB 17471/75 A GB17471/75 A GB 17471/75A GB 1747175 A GB1747175 A GB 1747175A GB 1499407 A GB1499407 A GB 1499407A
Authority
GB
United Kingdom
Prior art keywords
speakers
speaker
baffle
loud
horizontal axis
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
GB17471/75A
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.)
CBS Broadcasting Inc
Original Assignee
CBS Inc
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 CBS Inc filed Critical CBS Inc
Publication of GB1499407A publication Critical patent/GB1499407A/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; 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
    • 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
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/025—Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

1499407 Loud-speaker systems; resonators CBS Inc 28 April 1975 [20 May 1974] 17471/75 Headings H4J and H4X A loud-speaker 312 is mounted on a rotatable baffle 310 having unequal horizontal edges in a generally open sided upper compartment which is formed above a closed lower compartment having a second speaker 306 mounted on one side face thereof, the speaker 306 being for a frequency range below that of the speaker 312. Further speakers 314, 316 for higher frequency ranges are also provided. Speakers 312, 314 in conjunction with respective portions of the baffle 310 form dipole radiators. The respective frequency ranges of speakers 312, 314 may be 200-1000 Hz and 1000-5000 Hz respectively, the speakers 306 and 316 dealing with the ranges below 200 Hz and above 5000 Hz respectively. The baffle may be pivoted within a frame arranged to pivot about a horizontal axis so as to provide for both displacement about a vertical and a horizontal axis (Fig. 7, not shown). The speakers are of the moving coil type but it is mentioned that capacitor or electret type speakers may be used, especially for the speakers 312, 314.
GB17471/75A 1974-05-20 1975-04-28 Directional loudspeaker Expired GB1499407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US471267A US3903989A (en) 1974-05-20 1974-05-20 Directional loudspeaker

Publications (1)

Publication Number Publication Date
GB1499407A true GB1499407A (en) 1978-02-01

Family

ID=23870935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17471/75A Expired GB1499407A (en) 1974-05-20 1975-04-28 Directional loudspeaker

Country Status (9)

Country Link
US (1) US3903989A (en)
JP (1) JPS5616998B2 (en)
AU (1) AU8009975A (en)
BE (1) BE829157A (en)
DE (1) DE2521950A1 (en)
FR (1) FR2272563A1 (en)
GB (1) GB1499407A (en)
LU (1) LU72503A1 (en)
NL (1) NL7504014A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465385A1 (en) * 1979-09-14 1981-03-20 Pioneer Electronic Corp SPEAKER WITH MULTIPLE SPEAKERS FOR MOTOR VEHICLE
GB2350964A (en) * 1999-06-10 2000-12-13 Stefan Gamble Loudspeaker driver high frequency central imaging system

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE387511B (en) * 1973-08-24 1976-09-06 S Carlsson SPEAKERS FOR USE IN STEROPHONIC SOUND DISPLAY, AS WELL AS TWO SUCH SPEAKERS EXISTING SPEAKERS
US4054750A (en) * 1976-06-18 1977-10-18 Ralph Montgomery Full range rotatable speaker housing with oppositely directed speakers
FR2413839A1 (en) * 1977-12-29 1979-07-27 Setton Jack HI=FI system loudspeaker arrangement - has fixed LF loud speaker and pivoting medium and/or HF loudspeaker(s) on parallel axes
US4466505A (en) * 1982-04-19 1984-08-21 Temporal Dynamics Research, Inc. Sound reproducing combination
US4598789A (en) * 1982-04-19 1986-07-08 Temporal Dynamics Research, Inc. Sound reproducing
JPS59101334A (en) * 1982-11-30 1984-06-11 Yoshida Kogyo Kk <Ykk> Apparatus for producing slide fastener chain with synthetic teeth
US4621708A (en) * 1984-08-20 1986-11-11 Bose Corporation Tweeter bidirectional radiating
US4742548A (en) * 1984-12-20 1988-05-03 American Telephone And Telegraph Company Unidirectional second order gradient microphone
JPS62282783A (en) * 1986-05-31 1987-12-08 Mitsubishi Electric Corp Connection method for metal strip and its device
DE3823482A1 (en) * 1988-07-11 1990-01-25 Bartsch Klaus Loudspeaker arrangement
US4953223A (en) * 1988-09-08 1990-08-28 Householder George G Speaker mounting system
DE3915205A1 (en) * 1989-05-10 1990-11-15 Magnat Electronik Gmbh & Co Kg Loudspeaker housing - has individual auxiliary loudspeakers supported within auxiliary housing units attached to sides of main loudspeaker unit
DE3915204A1 (en) * 1989-05-10 1990-11-15 Magnat Electronik Gmbh & Co Kg Loudspeaker housing - has auxiliary individual loudspeakers pivoted about axis adjacent edge of front panel
AU1816599A (en) * 1998-01-07 1999-07-26 Nct Group, Inc. Thin loudspeaker
GB0219244D0 (en) * 2002-08-17 2002-09-25 Kh Technology Corp Loudspeaker system
US8139797B2 (en) * 2002-12-03 2012-03-20 Bose Corporation Directional electroacoustical transducing
US7676047B2 (en) * 2002-12-03 2010-03-09 Bose Corporation Electroacoustical transducing with low frequency augmenting devices
GB2425436B (en) * 2005-04-21 2007-06-06 Martin Audio Ltd Acoustic loading device for loudspeakers
EP2043381A3 (en) * 2007-09-28 2010-07-21 Bang & Olufsen A/S A method and a system to adjust the acoustical performance of a loudspeaker
US20100177921A1 (en) * 2009-01-14 2010-07-15 Richard Bos Response speaker system
US8116499B2 (en) * 2009-01-23 2012-02-14 John Grant Microphone adaptor for altering the geometry of a microphone without altering its frequency response characteristics
EP2637417A1 (en) * 2012-03-07 2013-09-11 RE-Speakers Housing for dipole loudspeaker, method for manufacturing said housing and dipole loudspeaker
WO2016100237A1 (en) * 2014-12-15 2016-06-23 Gary Fox Ultra-low distortion integrated loudspeaker system
JP6741247B2 (en) * 2016-04-29 2020-08-19 ブルメスター オーディオシステム ゲーエムベーハー Speaker

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE868921C (en) * 1949-06-05 1953-03-02 Siemens Ag Loudspeaker combination with differently tuned individual loudspeakers, e.g. B. Tweeter and woofer
US2927657A (en) * 1958-01-29 1960-03-08 Louis J Patla Loud speaker system
US3491204A (en) * 1967-05-12 1970-01-20 Stanley A Sherno Sound system circuit and cabinet assembly
US3483945A (en) * 1967-08-28 1969-12-16 Musitronic Inc Omnidirectional sound system
DE2159068C2 (en) * 1970-11-30 1982-12-30 Pioneer Electronic Corp., Tokyo Speaker device
JPS4863714A (en) * 1971-11-25 1973-09-04
JPS4878825U (en) * 1971-12-28 1973-09-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465385A1 (en) * 1979-09-14 1981-03-20 Pioneer Electronic Corp SPEAKER WITH MULTIPLE SPEAKERS FOR MOTOR VEHICLE
GB2350964A (en) * 1999-06-10 2000-12-13 Stefan Gamble Loudspeaker driver high frequency central imaging system
GB2350964B (en) * 1999-06-10 2001-08-22 Stefan Gamble Loudspeaker driver high frequency central imaging system

Also Published As

Publication number Publication date
US3903989A (en) 1975-09-09
FR2272563A1 (en) 1975-12-19
JPS5616998B2 (en) 1981-04-20
LU72503A1 (en) 1976-03-17
JPS51326A (en) 1976-01-06
NL7504014A (en) 1975-11-24
BE829157A (en) 1975-11-17
AU8009975A (en) 1976-10-21
DE2521950A1 (en) 1975-12-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee