CH283814A - Device for coupling a loudspeaker to the atmosphere. - Google Patents

Device for coupling a loudspeaker to the atmosphere.

Info

Publication number
CH283814A
CH283814A CH283814DA CH283814A CH 283814 A CH283814 A CH 283814A CH 283814D A CH283814D A CH 283814DA CH 283814 A CH283814 A CH 283814A
Authority
CH
Switzerland
Prior art keywords
loudspeaker
atmosphere
coupling
Prior art date
Application number
Other languages
French (fr)
Inventor
S A Standard Telephone E Radio
Original Assignee
Standard Telephone & Radio Sa
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 Standard Telephone & Radio Sa filed Critical Standard Telephone & Radio Sa
Publication of CH283814A publication Critical patent/CH283814A/en

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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/36—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means by using a single aperture of dimensions not greater than the shortest operating wavelength

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)
  • Diaphragms For Electromechanical Transducers (AREA)
CH283814D 1947-09-10 1948-09-08 Device for coupling a loudspeaker to the atmosphere. CH283814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB283814X 1947-09-10

Publications (1)

Publication Number Publication Date
CH283814A true CH283814A (en) 1952-06-30

Family

ID=10274751

Family Applications (1)

Application Number Title Priority Date Filing Date
CH283814D CH283814A (en) 1947-09-10 1948-09-08 Device for coupling a loudspeaker to the atmosphere.

Country Status (7)

Country Link
US (1) US2646851A (en)
BE (2) BE484735A (en)
CH (1) CH283814A (en)
DE (1) DE944860C (en)
FR (1) FR971128A (en)
GB (1) GB659063A (en)
NL (1) NL77682C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694462A (en) * 1951-09-19 1954-11-16 Robbins Frank Acoustic system for loud-speakers
US2694463A (en) * 1952-04-07 1954-11-16 Robbins Frank Acoustic system for loud-speakers
US2787332A (en) * 1952-09-06 1957-04-02 Norman C Fulmer Loud-speaker system
DE1130472B (en) * 1957-11-22 1962-05-30 Philco Corp Speaker cone
US3146848A (en) * 1958-08-25 1964-09-01 John O Fundingsland Hi-fidelity speaker
GB1557879A (en) * 1976-12-03 1979-12-12 Rank Organisation Ltd Electro acoustic transducers
US4207963A (en) * 1978-12-11 1980-06-17 Integrated Sound Systems Inc. Loudspeaker system
DE3407980A1 (en) * 1983-04-20 1984-10-25 Tadashi Tokio/Tokyo Sawafuji CRYSTAL SOUND GENERATOR
CA1271247A (en) * 1987-01-14 1990-07-03 Gerard S. Mindel Load and dispersion cell for sound
FR2649572B1 (en) * 1989-07-07 1991-09-20 Thomson Consumer Electronics SOUND REPRODUCING DEVICE FOR TELEVISIONS
GB2425436B (en) * 2005-04-21 2007-06-06 Martin Audio Ltd Acoustic loading device for loudspeakers
US7520368B2 (en) * 2007-06-08 2009-04-21 Moore Dana A Horizontally folded reflex-ported bass horn enclosure
US7513332B2 (en) * 2007-09-12 2009-04-07 Moore Dana A Convertible folded horn enclosure with improved compactness

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US272866A (en) * 1883-02-27 Speaking-trumpet for receiving-telephones
US1616474A (en) * 1925-03-05 1927-02-08 Charles F Stehlin Tone-developing loud speaker
US1865735A (en) * 1929-04-01 1932-07-05 Rca Corp Sound reproducer
GB404937A (en) * 1932-07-14 1934-01-15 William Robertson Millar Improvements in sound-modifying devices for loud speakers or the like
FR791142A (en) * 1934-09-06 1935-12-04 Protective device and sound amplifier for loudspeakers of t. s. f.
US2214393A (en) * 1938-09-10 1940-09-10 Ingraham E Co Acoustical equalizer
US2373692A (en) * 1942-10-03 1945-04-17 Ray L Smith Loud-speaker

Also Published As

Publication number Publication date
DE944860C (en) 1956-06-28
GB659063A (en) 1951-10-17
BE484735A (en)
BE522721A (en)
NL77682C (en)
US2646851A (en) 1953-07-28
FR971128A (en) 1951-01-12

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