FR2453542A1 - Dispositif de commande d'amplitude d'un son - Google Patents
Dispositif de commande d'amplitude d'un sonInfo
- Publication number
- FR2453542A1 FR2453542A1 FR8007736A FR8007736A FR2453542A1 FR 2453542 A1 FR2453542 A1 FR 2453542A1 FR 8007736 A FR8007736 A FR 8007736A FR 8007736 A FR8007736 A FR 8007736A FR 2453542 A1 FR2453542 A1 FR 2453542A1
- Authority
- FR
- France
- Prior art keywords
- comparator
- control device
- amplitude control
- sound amplitude
- voltage
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/02—Remote control of amplification, tone or bandwidth
Landscapes
- Adjustable Resistors (AREA)
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Abstract
a. Dispositif de commande d'amplitude d'un son. b. Dispositif caractérisé par un premier comparateur 13 pour comparer la tension entre la seconde et la troisième bornes de la résistance auxiliaire 11 et de la résistance préréglable 10, un second comparateur 15a, 15b pour comparer la tension du signal de sortie V3 du premier comparateur 13 et une tension de référence continue ( +- V0) et un circuit de commande qui reçoit le signal de commande 18c du second comparateur 15a, 15b pour commander 8 la valeur de la résistance variable principale 2.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4132779A JPS55134514A (en) | 1979-04-05 | 1979-04-05 | Preset resistance unit |
JP1979048817U JPS6244575Y2 (fr) | 1979-04-12 | 1979-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2453542A1 true FR2453542A1 (fr) | 1980-10-31 |
FR2453542B1 FR2453542B1 (fr) | 1986-05-09 |
Family
ID=26380920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8007736A Expired FR2453542B1 (fr) | 1979-04-05 | 1980-04-04 | Dispositif de commande d'amplitude d'un son |
Country Status (6)
Country | Link |
---|---|
US (1) | US4320254A (fr) |
AU (1) | AU534229B2 (fr) |
DE (1) | DE3013248A1 (fr) |
FR (1) | FR2453542B1 (fr) |
GB (1) | GB2048518B (fr) |
NL (1) | NL8002054A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69028394T2 (de) * | 1989-12-29 | 1997-01-16 | Fujitsu Ten Ltd | Tonwiedergabevorrichtung |
US5130665A (en) * | 1991-02-14 | 1992-07-14 | Walden Richard L | Audio volume level control |
JP2003101359A (ja) * | 2001-09-21 | 2003-04-04 | Pioneer Electronic Corp | リミッタ付増幅器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299334A (en) * | 1963-11-14 | 1967-01-17 | Zenith Radio Corp | Remote control system using a pair of semiconductor switches to effect bidirectionalcurrent flow in a control device |
US3467868A (en) * | 1966-12-19 | 1969-09-16 | Electrohome Ltd | Automatic muting networks for signal seeking receivers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3444323A (en) * | 1964-11-26 | 1969-05-13 | Tdk Electronics Co Ltd | Automatic sound volume controlling system |
-
1980
- 1980-04-01 AU AU57026/80A patent/AU534229B2/en not_active Ceased
- 1980-04-03 GB GB8011300A patent/GB2048518B/en not_active Expired
- 1980-04-03 DE DE19803013248 patent/DE3013248A1/de active Granted
- 1980-04-04 FR FR8007736A patent/FR2453542B1/fr not_active Expired
- 1980-04-07 US US06/137,845 patent/US4320254A/en not_active Expired - Lifetime
- 1980-04-08 NL NL8002054A patent/NL8002054A/nl not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3299334A (en) * | 1963-11-14 | 1967-01-17 | Zenith Radio Corp | Remote control system using a pair of semiconductor switches to effect bidirectionalcurrent flow in a control device |
US3467868A (en) * | 1966-12-19 | 1969-09-16 | Electrohome Ltd | Automatic muting networks for signal seeking receivers |
Also Published As
Publication number | Publication date |
---|---|
GB2048518B (en) | 1983-07-20 |
GB2048518A (en) | 1980-12-10 |
FR2453542B1 (fr) | 1986-05-09 |
AU5702680A (en) | 1980-10-09 |
NL8002054A (nl) | 1980-10-07 |
DE3013248A1 (de) | 1980-10-23 |
AU534229B2 (en) | 1984-01-12 |
US4320254A (en) | 1982-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |