FR613417A - - Google Patents

Info

Publication number
FR613417A
FR613417A FR613417DA FR613417A FR 613417 A FR613417 A FR 613417A FR 613417D A FR613417D A FR 613417DA FR 613417 A FR613417 A FR 613417A
Authority
FR
France
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)
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.)
Publication date
Application granted granted Critical
Publication of FR613417A publication Critical patent/FR613417A/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Near-Field Transmission Systems (AREA)
FR613417D 1925-03-31 Expired FR613417A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE250221T 1925-03-31

Publications (1)

Publication Number Publication Date
FR613417A true FR613417A (zh) 1926-11-17

Family

ID=31893645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR613417D Expired FR613417A (zh) 1925-03-31

Country Status (3)

Country Link
US (1) US1674683A (zh)
FR (1) FR613417A (zh)
GB (1) GB250221A (zh)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE467997A (zh) * 1945-08-03
US2474191A (en) * 1947-06-06 1949-06-21 Avco Mfg Corp Tone control
US2539327A (en) * 1947-07-23 1951-01-23 Avco Mfg Corp Cabinet for radio apparatus
US2616970A (en) * 1948-02-11 1952-11-04 Hartford Nat Bank & Trust Co Device for the transmission by electrical means of oscillations of acoustic frequency
DE973570C (de) * 1948-10-02 1960-03-31 Siemens Ag Einrichtung zur plastischen Wiedergabe elektroakustischer Darbietungen
US2615994A (en) * 1948-12-14 1952-10-28 Lindenberg Theodore Diaphragm for electrostatic loud-speakers
US2745083A (en) * 1949-07-07 1956-05-08 Benjamin L Snavely Transducer, elements therefor, and methods of assembly thereof
US2547464A (en) * 1950-03-03 1951-04-03 Frederick G Hehr Sound recording and reproducing apparatus
US2830283A (en) * 1950-04-18 1958-04-08 Massa Frank Directional characteristics of electroacoustic transducers and method for utilizing the same
US2973504A (en) * 1951-03-26 1961-02-28 Robert J Bobber Sonic echo system
US2978671A (en) * 1951-08-11 1961-04-04 Harris Transducer Corp Electrodynamic transducer
US2888517A (en) * 1953-11-02 1959-05-26 Leo C Krazinski System and apparatus for reproducing and re-recording music
US2978669A (en) * 1954-03-08 1961-04-04 Harris Transducer Corp Underwater electrodynamic acoustic transducer with air-filled composite diaphragm
US3008013A (en) * 1954-07-20 1961-11-07 Ferranti Ltd Electrostatic loudspeakers
US2993090A (en) * 1955-03-16 1961-07-18 Arf Products Electrostatic speaker circuit
US3135838A (en) * 1958-12-10 1964-06-02 Wright St George Lab Inc Electrostatic loudspeaker
US3061676A (en) * 1959-02-05 1962-10-30 Electro Voice Sound reproducing device
US3457370A (en) * 1965-12-30 1969-07-22 C P Boner & Associates Impedance correcting networks
US4597100A (en) * 1984-05-15 1986-06-24 Rg Dynamics, Inc. Ultra high resolution loudspeaker system
US5373563A (en) * 1990-10-05 1994-12-13 Kukurudza; Vladimir W. Self damping speaker matching device
US5519781A (en) * 1990-10-05 1996-05-21 Kukurudza; Vladimir W. Self damping speaker matching device and method
AU6176394A (en) * 1993-02-25 1994-09-14 Ralph D. Heinz Multiple-driver single horn loudspeaker
US5917922A (en) * 1995-11-08 1999-06-29 Kukurudza; Vladimir Walter Method of operating a single loud speaker drive system
US5615272A (en) * 1995-11-08 1997-03-25 Kukurudza; Vladimir W. Single loud speaker drive system
GB2324926A (en) * 1997-05-01 1998-11-04 David Joseph Geiss Cross-over arrangement for a loudspeaker
US6115475A (en) * 1998-07-23 2000-09-05 Diaural, L.L.C. Capacitor-less crossover network for electro-acoustic loudspeakers
US6411718B1 (en) 1999-04-28 2002-06-25 Sound Physics Labs, Inc. Sound reproduction employing unity summation aperture loudspeakers
US7392880B2 (en) * 2002-04-02 2008-07-01 Gibson Guitar Corp. Dual range horn with acoustic crossover
CN108989933A (zh) * 2018-07-16 2018-12-11 广州艺腾电子产品有限公司 耳机结构

Also Published As

Publication number Publication date
GB250221A (zh) 1927-04-07
US1674683A (en) 1928-06-26

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