ES373031A1 - Dispositivo de perdida variable. - Google Patents
Dispositivo de perdida variable.Info
- Publication number
- ES373031A1 ES373031A1 ES373031A ES373031A ES373031A1 ES 373031 A1 ES373031 A1 ES 373031A1 ES 373031 A ES373031 A ES 373031A ES 373031 A ES373031 A ES 373031A ES 373031 A1 ES373031 A1 ES 373031A1
- Authority
- ES
- Spain
- Prior art keywords
- transistors
- line
- source
- control
- impedance
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
- H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G7/00—Volume compression or expansion in amplifiers
- H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
- H03G7/004—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using continuously variable impedance devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/24—Frequency-independent attenuators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/06—Control of transmission; Equalising by the transmitted signal
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Networks Using Active Elements (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5148568 | 1968-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES373031A1 true ES373031A1 (es) | 1971-12-01 |
Family
ID=10460210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES373031A Expired ES373031A1 (es) | 1968-10-30 | 1969-10-30 | Dispositivo de perdida variable. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3582681A (es) |
DE (1) | DE1952927B2 (es) |
ES (1) | ES373031A1 (es) |
FR (1) | FR2021915A1 (es) |
GB (1) | GB1239061A (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3763382A (en) * | 1972-03-01 | 1973-10-02 | Sony Corp | Amplitude control circuit |
IT995990B (it) * | 1973-10-19 | 1975-11-20 | Ates Componenti Elettron | Attenuatore attivo a minima distorsione armonica totale per amplificatori in alternata con controllo automatico del livello d uscita |
JPS51147236A (en) * | 1975-06-13 | 1976-12-17 | Hitachi Ltd | Automatic gain control circuit |
JPS5422512U (es) * | 1977-07-15 | 1979-02-14 | ||
US4567384A (en) * | 1982-12-27 | 1986-01-28 | Motorola, Inc. | Voltage offset producing circuit for use with a line receiver or the like |
US4964116A (en) * | 1988-11-02 | 1990-10-16 | Ant Nachrichtentechnik Gmbh | DS3 - line interface linear array (lila) |
JPH08307181A (ja) * | 1995-05-09 | 1996-11-22 | Sony Corp | レベル制御回路 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3343099A (en) * | 1964-08-27 | 1967-09-19 | Gen Dynamics Corp | Audio compressor circuit |
-
1968
- 1968-10-30 GB GB5148568A patent/GB1239061A/en not_active Expired
-
1969
- 1969-10-21 DE DE19691952927 patent/DE1952927B2/de active Granted
- 1969-10-27 US US869509A patent/US3582681A/en not_active Expired - Lifetime
- 1969-10-29 FR FR6937091A patent/FR2021915A1/fr not_active Withdrawn
- 1969-10-30 ES ES373031A patent/ES373031A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1952927A1 (de) | 1970-05-06 |
GB1239061A (es) | 1971-07-14 |
US3582681A (en) | 1971-06-01 |
FR2021915A1 (es) | 1970-07-24 |
DE1952927B2 (de) | 1976-06-24 |
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