FR2295629A1 - Montage d'egalisation notamment pour enregistrement de signaux acoustiques - Google Patents

Montage d'egalisation notamment pour enregistrement de signaux acoustiques

Info

Publication number
FR2295629A1
FR2295629A1 FR7537238A FR7537238A FR2295629A1 FR 2295629 A1 FR2295629 A1 FR 2295629A1 FR 7537238 A FR7537238 A FR 7537238A FR 7537238 A FR7537238 A FR 7537238A FR 2295629 A1 FR2295629 A1 FR 2295629A1
Authority
FR
France
Prior art keywords
equalization
acoustic signal
signal recording
mounting especially
mounting
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.)
Granted
Application number
FR7537238A
Other languages
English (en)
Other versions
FR2295629B1 (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.)
Ampex Corp
Original Assignee
Ampex Corp
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 Ampex Corp filed Critical Ampex Corp
Publication of FR2295629A1 publication Critical patent/FR2295629A1/fr
Application granted granted Critical
Publication of FR2295629B1 publication Critical patent/FR2295629B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/025—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
    • 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
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Networks Using Active Elements (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Dc Digital Transmission (AREA)
FR7537238A 1974-12-19 1975-12-05 Montage d'egalisation notamment pour enregistrement de signaux acoustiques Granted FR2295629A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/534,357 US3940709A (en) 1974-12-19 1974-12-19 Equalization circuit

Publications (2)

Publication Number Publication Date
FR2295629A1 true FR2295629A1 (fr) 1976-07-16
FR2295629B1 FR2295629B1 (fr) 1983-08-12

Family

ID=24129696

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7537238A Granted FR2295629A1 (fr) 1974-12-19 1975-12-05 Montage d'egalisation notamment pour enregistrement de signaux acoustiques

Country Status (6)

Country Link
US (2) US3940709A (fr)
AT (1) AT355336B (fr)
BE (1) BE836578A (fr)
DE (1) DE2556684C2 (fr)
FR (1) FR2295629A1 (fr)
GB (1) GB1533266A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1547362A (en) * 1975-03-24 1979-06-13 Post Office Active amplitude equalizers
US4052560A (en) * 1976-06-03 1977-10-04 John Bryant Santmann Loudspeaker distortion reduction systems
JPS5758807Y2 (fr) * 1977-08-29 1982-12-16
DE2813207A1 (de) * 1978-03-25 1979-10-04 Bosch Gmbh Robert System zur korrektur von signalen, welche frequenzmoduliert von einem aufzeichnungstraeger abgenommen werden
FR2469043B1 (fr) * 1979-10-31 1986-01-24 Enertec Filtres accordes par commutation et utilisation dans un egalisateur d'enregistrement magnetique
US4354160A (en) * 1980-07-01 1982-10-12 Kentrox Industries, Inc. Amplitude equalizer
US4371901A (en) * 1980-10-16 1983-02-01 Honeywell Inc. Programmable signal equalizer
US4578533A (en) * 1980-11-03 1986-03-25 Universal Data Systems, Inc. Switchable line powered modem
JPS57200926A (en) * 1981-06-03 1982-12-09 Hitachi Ltd Signal processing circuit
NL8104108A (nl) * 1981-09-04 1983-04-05 Michalofski Erik V Inrichting voor elektroakoestische omzetting van energie.
US4888789A (en) * 1982-03-30 1989-12-19 Orban Robert A Adjustable equalizer for compensating for high frequency rolloff and typical AM receivers
US4475232A (en) * 1982-10-18 1984-10-02 Jas Electronics, Inc. Fireman's safety apparatus
US4759065A (en) * 1986-09-22 1988-07-19 Harman International Industries, Incorporated Automotive sound system
US5023914A (en) * 1988-03-11 1991-06-11 Bose Corporation Acoustical frequency response improving with non-minimum phase circuitry
US5652537A (en) * 1995-11-03 1997-07-29 Sundstrand Corporation Impedance multiplier
JP3325770B2 (ja) * 1996-04-26 2002-09-17 三菱電機株式会社 ノイズ低減回路及びノイズ低減装置及びノイズ低減方法
WO2003009551A2 (fr) * 2001-07-18 2003-01-30 Vrije Universiteit Brussel (Vub) Recepteur de signaux numeriques operant au-dela de la frequence 3db
US7463746B2 (en) * 2003-03-31 2008-12-09 Bose Corporation Narrow opening electroacoustical transducing
CA2874272C (fr) 2012-05-30 2021-01-05 Tellus Oilfield, Inc. Systeme de forage, mecanisme de rappel et procede permettant un forage directionnel d'un trou de forage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450818A (en) * 1944-08-26 1948-10-05 Raymond K Vermillion Electronic noise eliminator
US2589133A (en) * 1948-01-13 1952-03-11 John Hays Hammond Jr Electrical filter
US2760011A (en) * 1954-10-25 1956-08-21 Cons Electrodynamics Corp Frequency separating apparatus
US2895111A (en) * 1956-10-25 1959-07-14 Telefunken Gmbh Frequency response curve equalization
US3026480A (en) * 1958-03-10 1962-03-20 Textron Electronics Inc Exciter equalizer
US3336540A (en) * 1965-04-15 1967-08-15 Giannini Scient Corp Two channel variable cable equalizer having passive amplitude equalization means in only one of the channels
DE1562034A1 (de) * 1968-02-06 1970-07-23 Telefunken Patent Schaltungsanordnung zur Differenzierentzerrung in Fernsehempfaengern
US3530394A (en) * 1968-07-08 1970-09-22 Us Navy Audio frequency reject filter
US3665345A (en) * 1969-07-21 1972-05-23 Dolby Laboratories Inc Compressors and expanders for noise reduction systems
JPS524895B1 (fr) * 1969-07-25 1977-02-08
NL163388C (nl) * 1971-05-04 1980-08-15 Philips Nv Ruisonderdrukkingsschakeling.
JPS5334698B1 (fr) * 1971-06-09 1978-09-21

Also Published As

Publication number Publication date
GB1533266A (en) 1978-11-22
ATA962775A (de) 1979-07-15
DE2556684A1 (de) 1976-06-24
AT355336B (de) 1980-02-25
BE836578A (fr) 1976-04-01
USRE29529E (en) 1978-01-31
US3940709A (en) 1976-02-24
FR2295629B1 (fr) 1983-08-12
DE2556684C2 (de) 1983-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse