FR725727A - Sound guiding device for loudspeakers - Google Patents

Sound guiding device for loudspeakers

Info

Publication number
FR725727A
FR725727A FR725727DA FR725727A FR 725727 A FR725727 A FR 725727A FR 725727D A FR725727D A FR 725727DA FR 725727 A FR725727 A FR 725727A
Authority
FR
France
Prior art keywords
loudspeakers
guiding device
sound guiding
sound
guiding
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
Other languages
French (fr)
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR725727A publication Critical patent/FR725727A/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
    • H04R1/32—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
    • H04R1/345—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 for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR725727D 1930-11-06 1931-11-05 Sound guiding device for loudspeakers Expired FR725727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE591587T 1930-11-06

Publications (1)

Publication Number Publication Date
FR725727A true FR725727A (en) 1932-05-17

Family

ID=6635045

Family Applications (1)

Application Number Title Priority Date Filing Date
FR725727D Expired FR725727A (en) 1930-11-06 1931-11-05 Sound guiding device for loudspeakers

Country Status (2)

Country Link
DE (1) DE591587C (en)
FR (1) FR725727A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972385A (en) * 1973-01-17 1976-08-03 Onkyo Kabushiki Kaisha Horn speaker
US4040503A (en) * 1973-01-17 1977-08-09 Onkyo Kabushiki Kaisha Horn speaker
US4091891A (en) * 1973-01-17 1978-05-30 Onkyo Kabushiki Kaisha Horn speaker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971730C (en) * 1952-04-27 1959-03-19 Philips Patentverwaltung Omnidirectional speakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972385A (en) * 1973-01-17 1976-08-03 Onkyo Kabushiki Kaisha Horn speaker
US4040503A (en) * 1973-01-17 1977-08-09 Onkyo Kabushiki Kaisha Horn speaker
US4091891A (en) * 1973-01-17 1978-05-30 Onkyo Kabushiki Kaisha Horn speaker

Also Published As

Publication number Publication date
DE591587C (en)

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