BE836578A - Circuit correcteur - Google Patents
Circuit correcteurInfo
- Publication number
- BE836578A BE836578A BE162694A BE162694A BE836578A BE 836578 A BE836578 A BE 836578A BE 162694 A BE162694 A BE 162694A BE 162694 A BE162694 A BE 162694A BE 836578 A BE836578 A BE 836578A
- Authority
- BE
- Belgium
- Prior art keywords
- corrective circuit
- corrective
- circuit
- Prior art date
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)
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 (1)
Publication Number | Publication Date |
---|---|
BE836578A true BE836578A (fr) | 1976-04-01 |
Family
ID=24129696
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE162694A BE836578A (fr) | 1974-12-19 | 1975-12-12 | Circuit correcteur |
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)
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 |
EP2855825B1 (fr) | 2012-05-30 | 2020-03-11 | B&W Mud Motors, LLC | Système de forage, mécanisme de rappel et procédé permettant un forage directionnel d'un trou de forage |
Family Cites Families (12)
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 |
BE753495A (fr) * | 1969-07-21 | 1970-12-16 | Dolby Laboratories Inc | Filtres limiteurs perfectionnes pour systemes attenuateurs de bruit. ( |
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 |
-
1974
- 1974-12-19 US US05/534,357 patent/US3940709A/en not_active Expired - Lifetime
-
1975
- 1975-11-24 GB GB48179/75A patent/GB1533266A/en not_active Expired
- 1975-12-05 FR FR7537238A patent/FR2295629A1/fr active Granted
- 1975-12-12 BE BE162694A patent/BE836578A/fr not_active IP Right Cessation
- 1975-12-16 DE DE2556684A patent/DE2556684C2/de not_active Expired
- 1975-12-18 AT AT962775A patent/AT355336B/de not_active IP Right Cessation
-
1976
- 1976-05-03 US US05/682,556 patent/USRE29529E/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2556684C2 (de) | 1983-12-22 |
USRE29529E (en) | 1978-01-31 |
ATA962775A (de) | 1979-07-15 |
US3940709A (en) | 1976-02-24 |
DE2556684A1 (de) | 1976-06-24 |
FR2295629A1 (fr) | 1976-07-16 |
FR2295629B1 (fr) | 1983-08-12 |
AT355336B (de) | 1980-02-25 |
GB1533266A (en) | 1978-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: AMPEX CORP. Effective date: 19941231 |