GB622401A - Improvements in or relating to stereophonic reproduction apparatus - Google Patents

Improvements in or relating to stereophonic reproduction apparatus

Info

Publication number
GB622401A
GB622401A GB757747A GB757747A GB622401A GB 622401 A GB622401 A GB 622401A GB 757747 A GB757747 A GB 757747A GB 757747 A GB757747 A GB 757747A GB 622401 A GB622401 A GB 622401A
Authority
GB
United Kingdom
Prior art keywords
speakers
relating
sound
tones
stereophonic reproduction
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
GB757747A
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
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
Priority to NL248861X priority Critical
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Publication of GB622401A publication Critical patent/GB622401A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/02Spatial or constructional arrangements of loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein

Abstract

622,401. Radio receivers. PHILIPS LAMPS, Ltd. March 19, 1947, No. 7577. Convention date, May 30, 1944. [Class 40 (v)] [Also in Group XXXIX] A stereophonic radio receiver comprises one or more loud-speakers L1, L2 in the side walls of a cabinet 1, the sound from these speakers being reflected by hinged panels K1, K2 provided with sound-distributing elements such as small cones 4. The side speakers reproduce the high tones while a central speaker L3 reproduces the low tones.
GB757747A 1944-05-30 1947-03-19 Improvements in or relating to stereophonic reproduction apparatus Expired GB622401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL248861X 1944-05-30

Publications (1)

Publication Number Publication Date
GB622401A true GB622401A (en) 1949-05-02

Family

ID=19780971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB757747A Expired GB622401A (en) 1944-05-30 1947-03-19 Improvements in or relating to stereophonic reproduction apparatus

Country Status (6)

Country Link
US (1) US2610694A (en)
BE (1) BE464536A (en)
CH (1) CH248861A (en)
DE (1) DE813605C (en)
FR (1) FR929705A (en)
GB (1) GB622401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317532A (en) * 1996-09-24 1998-03-25 Augustin Heinz Jurgen Loudspeaker cabinet

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2710662A (en) * 1948-12-23 1955-06-14 Armour Res Found Sound projection system
US2701025A (en) * 1952-02-05 1955-02-01 George H Kuhl High fidelity sound system
US2768702A (en) * 1952-02-07 1956-10-30 Lowry Charles Ariel Larmer Sound reproducing systems
US2777902A (en) * 1952-08-19 1957-01-15 Columbia Broadcasting Syst Inc Phonograph cabinet
NL97567C (en) * 1953-10-02
DE943598C (en) * 1954-02-21 1956-05-24 Grundig Max Radio or Nachrichtengeraet with spatially-action sound
US2814354A (en) * 1954-04-19 1957-11-26 Ampex Loud-speaker assembly and system
US2956129A (en) * 1954-08-31 1960-10-11 Rca Corp Stereophonic sound for drive-in theatres
DE1086749B (en) * 1958-02-07 1960-08-11 Deutsche Grammophon Gmbh Stereophonic reproduction device
US3052758A (en) * 1959-02-25 1962-09-04 Trix Electrical Co Ltd Column speakers suitable for use in public address systems
US3099183A (en) * 1960-06-09 1963-07-30 Edwin H Alles Mute and reflector for musical wind instruments
US3198007A (en) * 1961-05-23 1965-08-03 Jerry B Overton Acoustic testing chamber
US3153120A (en) * 1961-06-05 1964-10-13 Automatic Canteen Co Stereophonic sound reproduction system
US3166147A (en) * 1962-05-07 1965-01-19 Walter B Udell Loudspeaker system
US3582553A (en) * 1967-12-04 1971-06-01 Bose Corp Loudspeaker system
USRE31228E (en) * 1967-12-04 1983-05-03 Bose Corporation Loudspeaker system
US3679023A (en) * 1968-08-06 1972-07-25 John C Rankin Loudspeaker enclosure
US4332986A (en) * 1980-01-31 1982-06-01 Image Acoustics, Inc. Speaker system employing passive radiator
US5105905A (en) * 1990-05-07 1992-04-21 Rice Winston C Co-linear loudspeaker system
US7483543B2 (en) * 2003-01-06 2009-01-27 Motorola, Inc. Stereo imaging manifold and method for use in a portable electronic device
JP5528569B2 (en) * 2009-12-02 2014-06-25 フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー.ファオ Flat speaker
FR2969894B1 (en) * 2010-12-23 2013-08-09 Texte Edouard Durand Acoustic speaker has at least two speakers

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1932343A (en) * 1932-05-04 1933-10-24 Philadelphia Storage Battery Radio loud speaker cabinet
GB404937A (en) * 1932-07-14 1934-01-15 William Robertson Millar Improvements in sound-modifying devices for loud speakers or the like
US1915954A (en) * 1932-08-25 1933-06-27 Sparkswithington Co Loud speaker system
FR758706A (en) * 1933-07-21 1934-01-22 Improvement in sound breeding
US2114680A (en) * 1934-12-24 1938-04-19 Rca Corp System for the reproduction of sound
FR790599A (en) * 1935-05-28 1935-11-23 P A Zahlen Development acoustics talking machines
US2217279A (en) * 1938-07-23 1940-10-08 Rca Corp Acoustic apparatus
GB551364A (en) * 1942-01-14 1943-02-18 Philips Nv Improvements in or relating to devices for the stereophonic transmission and reproduction of sound
US2410413A (en) * 1943-02-10 1946-11-05 Albert B Hurley Acoustic tile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2317532A (en) * 1996-09-24 1998-03-25 Augustin Heinz Jurgen Loudspeaker cabinet
GB2317532B (en) * 1996-09-24 2000-10-04 Augustin Heinz Jurgen Loudspeaker cabinets

Also Published As

Publication number Publication date
FR929705A (en) 1948-01-06
CH248861A (en) 1947-05-31
US2610694A (en) 1952-09-16
BE464536A (en) 1946-10-12
DE813605C (en) 1951-09-13

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