FR628689A - Perfectionnements aux hauts-parleurs - Google Patents

Perfectionnements aux hauts-parleurs

Info

Publication number
FR628689A
FR628689A FR628689DA FR628689A FR 628689 A FR628689 A FR 628689A FR 628689D A FR628689D A FR 628689DA FR 628689 A FR628689 A FR 628689A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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
English (en)
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.)
PREMIER LAB Co
Original Assignee
PREMIER LAB Co
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 PREMIER LAB Co filed Critical PREMIER LAB Co
Application granted granted Critical
Publication of FR628689A publication Critical patent/FR628689A/fr
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

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Pinball Game Machines (AREA)
FR628689D 1927-02-01 1927-02-08 Perfectionnements aux hauts-parleurs Expired FR628689A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB288827A GB284467A (en) 1927-02-01 1927-02-01 Improvement in loud speakers

Publications (1)

Publication Number Publication Date
FR628689A true FR628689A (fr) 1927-10-27

Family

ID=9747887

Family Applications (1)

Application Number Title Priority Date Filing Date
FR628689D Expired FR628689A (fr) 1927-02-01 1927-02-08 Perfectionnements aux hauts-parleurs

Country Status (2)

Country Link
FR (1) FR628689A (fr)
GB (1) GB284467A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113781749B (zh) * 2021-09-09 2023-05-30 太原理工大学 一种地下管廊内管道泄露定位与预警装置、系统及方法

Also Published As

Publication number Publication date
GB284467A (en) 1928-02-02

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