IT1190872B - Sistema di amplificazione audio con incremento della potenza media di ascolto - Google Patents
Sistema di amplificazione audio con incremento della potenza media di ascoltoInfo
- Publication number
- IT1190872B IT1190872B IT21893/82A IT2189382A IT1190872B IT 1190872 B IT1190872 B IT 1190872B IT 21893/82 A IT21893/82 A IT 21893/82A IT 2189382 A IT2189382 A IT 2189382A IT 1190872 B IT1190872 B IT 1190872B
- Authority
- IT
- Italy
- Prior art keywords
- increase
- amplification system
- audio amplification
- average listening
- listening power
- Prior art date
Links
- 230000003321 amplification Effects 0.000 title 1
- 238000003199 nucleic acid amplification method Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21893/82A IT1190872B (it) | 1982-06-17 | 1982-06-17 | Sistema di amplificazione audio con incremento della potenza media di ascolto |
GB08315613A GB2123231B (en) | 1982-06-17 | 1983-06-07 | Gain control of audio-amplifying systems |
DE19833321293 DE3321293A1 (de) | 1982-06-17 | 1983-06-13 | Audioverstaerkungssystem mit steigerung der durchschnittlichen hoerleistung |
JP58105961A JPS595711A (ja) | 1982-06-17 | 1983-06-15 | 音声増幅方式 |
FR8310097A FR2529035A1 (fr) | 1982-06-17 | 1983-06-17 | Dispositif d'amplification d'audiofrequences permettant un accroissement de la puissance moyenne d'ecoute |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21893/82A IT1190872B (it) | 1982-06-17 | 1982-06-17 | Sistema di amplificazione audio con incremento della potenza media di ascolto |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8221893A0 IT8221893A0 (it) | 1982-06-17 |
IT1190872B true IT1190872B (it) | 1988-02-24 |
Family
ID=11188326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21893/82A IT1190872B (it) | 1982-06-17 | 1982-06-17 | Sistema di amplificazione audio con incremento della potenza media di ascolto |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS595711A (it) |
DE (1) | DE3321293A1 (it) |
FR (1) | FR2529035A1 (it) |
GB (1) | GB2123231B (it) |
IT (1) | IT1190872B (it) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1201797A (en) * | 1983-01-20 | 1986-03-11 | Frederick H.K. Rambow | Circuit for controlling the magnitude of amplification of signals produced by a borehole televiewer |
FR2594609B1 (fr) * | 1986-02-18 | 1988-04-29 | Grenet Edouard | Dispositif de correction automatique des variations de volume sonore d'un recepteur de radiodiffusion ou de television |
US5327101A (en) * | 1993-07-02 | 1994-07-05 | Ford Motor Company | Distortion-free limiter for a power amplifier |
US6133792A (en) * | 1998-09-17 | 2000-10-17 | Telefonakteibolaget Lm Ericsson | Method and apparatus for preventing power amplifier saturation |
US6828859B2 (en) * | 2001-08-17 | 2004-12-07 | Silicon Laboratories, Inc. | Method and apparatus for protecting devices in an RF power amplifier |
EP1499014B1 (en) | 2003-07-15 | 2010-03-17 | STMicroelectronics S.r.l. | A method for automatic gain control, for instance in a telecommunication system, device and computer program therefor |
EP3930185A1 (en) * | 2020-06-26 | 2021-12-29 | NXP USA, Inc. | Amplifier circuit with an output limiter |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1313261A (fr) * | 1961-11-15 | 1962-12-28 | Thomson Houston Comp Francaise | Perfectionnements aux systèmes de régulation |
GB1056265A (en) * | 1962-10-15 | 1967-01-25 | Shipton Electronics Ltd | Improvements in or relating to automatic gain control circuits |
CH462894A (fr) * | 1966-09-29 | 1968-09-30 | Eresa S A | Dispositif de réglage automatique de gain d'un amplificateur audio |
BE742465A (it) * | 1968-12-11 | 1970-05-14 | ||
US3770984A (en) * | 1971-03-03 | 1973-11-06 | Harris Intertype Corp | Fast recovery low distortion limiter circuit |
DE2403799B2 (de) * | 1974-01-26 | 1979-07-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärkerschaltung mit selbsttätiger Verstärkungsregelung |
CA1034873A (en) * | 1974-06-24 | 1978-07-18 | Masahiro Chikatsu | Limited circuit for recording amplifier |
AT348590B (de) * | 1975-09-26 | 1979-02-26 | Grundig Emv | Schaltungsanordnung zur ausschaltung des einflusses kurzer stoerimpulse bei automatischer pegelregelung |
GB1592575A (en) * | 1976-09-15 | 1981-07-08 | Siemens Ag | Level-controlled amplifier or attenuator circuits |
US4048573A (en) * | 1976-10-15 | 1977-09-13 | Mcintosh Laboratory, Incorporated | Amplifier improvements for limiting clipping |
JPS5515857U (it) * | 1978-07-17 | 1980-01-31 | ||
US4233566A (en) * | 1978-10-23 | 1980-11-11 | Technical Audio Products Corporation | Distortion free power limiting and clipping prevention circuit |
GB2059202B (en) * | 1979-09-14 | 1983-11-02 | Plessey Co Ltd | Digitally controlled wide range automatic gain control |
DE3027715C2 (de) * | 1980-07-19 | 1986-10-23 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltungsanordnung zur selbsttätigen Regelung oder Begrenzung der Dynamik von Signalen |
-
1982
- 1982-06-17 IT IT21893/82A patent/IT1190872B/it active
-
1983
- 1983-06-07 GB GB08315613A patent/GB2123231B/en not_active Expired
- 1983-06-13 DE DE19833321293 patent/DE3321293A1/de not_active Withdrawn
- 1983-06-15 JP JP58105961A patent/JPS595711A/ja active Pending
- 1983-06-17 FR FR8310097A patent/FR2529035A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
IT8221893A0 (it) | 1982-06-17 |
GB2123231B (en) | 1986-04-16 |
GB2123231A (en) | 1984-01-25 |
JPS595711A (ja) | 1984-01-12 |
GB8315613D0 (en) | 1983-07-13 |
DE3321293A1 (de) | 1984-01-05 |
FR2529035A1 (fr) | 1983-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970628 |