DE1027730B - UEberwachungseinrichtung mit Schutzschaltung fuer einen ein bestimmtes Frequenzband uebertragenden Leitungsverstaerker mit durch eine Pilotspannung gesteuerter, automatischer Verstaerkungsregelung - Google Patents

UEberwachungseinrichtung mit Schutzschaltung fuer einen ein bestimmtes Frequenzband uebertragenden Leitungsverstaerker mit durch eine Pilotspannung gesteuerter, automatischer Verstaerkungsregelung

Info

Publication number
DE1027730B
DE1027730B DE1956I0011337 DEI0011337A DE1027730B DE 1027730 B DE1027730 B DE 1027730B DE 1956I0011337 DE1956I0011337 DE 1956I0011337 DE I0011337 A DEI0011337 A DE I0011337A DE 1027730 B DE1027730 B DE 1027730B
Authority
DE
Germany
Prior art keywords
monitoring
frequency band
gain control
automatic gain
protective circuit
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.)
Pending
Application number
DE1956I0011337
Other languages
English (en)
Inventor
David L Thomas
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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
Priority to NL700129X priority Critical
Priority to GB569555A priority patent/GB764175A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE1027730B publication Critical patent/DE1027730B/de
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G1/00Details of arrangements for controlling amplification
    • H03G1/0005Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
    • H03G1/0035Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082Circuits 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
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/34Negative-feedback-circuit arrangements with or without positive feedback
    • H03F1/36Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181Low frequency amplifiers, e.g. audio preamplifiers
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26Push-pull amplifiers; Phase-splitters therefor
    • H03F3/28Push-pull amplifiers; Phase-splitters therefor with tubes only
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03GCONTROL OF AMPLIFICATION
    • H03G3/00Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20Automatic control
    • H03G3/22Automatic control in amplifiers having discharge tubes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/02Details
    • H04B3/04Control of transmission; Equalising
    • H04B3/10Control of transmission; Equalising by pilot signal
DE1956I0011337 1950-08-02 1956-02-24 UEberwachungseinrichtung mit Schutzschaltung fuer einen ein bestimmtes Frequenzband uebertragenden Leitungsverstaerker mit durch eine Pilotspannung gesteuerter, automatischer Verstaerkungsregelung Pending DE1027730B (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL700129X 1950-08-02
GB569555A GB764175A (en) 1950-08-02 1955-02-25 Improvements in or relating to safe-guarding arrangements for electric communicationsystems

Publications (1)

Publication Number Publication Date
DE1027730B true DE1027730B (de) 1958-04-10

Family

ID=26240078

Family Applications (3)

Application Number Title Priority Date Filing Date
DEI4440A Expired DE972713C (de) 1950-08-02 1951-08-01 Verstaerkerkreis zur Verbesserung der Einschwingzeit von Lautsprechern
DE1956J0011173 Pending DE1108277B (de) 1950-08-02 1956-01-13 Anordnung zur Verstaerkungsregelung von Funknachrichtenempfaengern mit mindestens zwei durch einen Resonanz-kreis gekoppelten Transistor-Verstaerkerstufen
DE1956I0011337 Pending DE1027730B (de) 1950-08-02 1956-02-24 UEberwachungseinrichtung mit Schutzschaltung fuer einen ein bestimmtes Frequenzband uebertragenden Leitungsverstaerker mit durch eine Pilotspannung gesteuerter, automatischer Verstaerkungsregelung

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DEI4440A Expired DE972713C (de) 1950-08-02 1951-08-01 Verstaerkerkreis zur Verbesserung der Einschwingzeit von Lautsprechern
DE1956J0011173 Pending DE1108277B (de) 1950-08-02 1956-01-13 Anordnung zur Verstaerkungsregelung von Funknachrichtenempfaengern mit mindestens zwei durch einen Resonanz-kreis gekoppelten Transistor-Verstaerkerstufen

Country Status (6)

Country Link
US (2) US2740850A (de)
BE (3) BE505008A (de)
DE (3) DE972713C (de)
FR (7) FR981784A (de)
GB (3) GB672169A (de)
NL (2) NL155159B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029317A (en) * 1956-09-28 1962-04-10 Rca Corp Frequency selective negative feedback recording circuitry
US3047815A (en) * 1959-07-03 1962-07-31 Gen Electric Phase component eliminator
GB886257A (en) * 1959-10-29 1962-01-03 John Somerset Murray Valve amplifier
US3178698A (en) * 1960-09-14 1965-04-13 Bell Telephone Labor Inc Regulator alarm circuit
US3328716A (en) * 1963-09-03 1967-06-27 Automatic Elect Lab Gain regulation circuit utilizing electrochemical memory means in variolosser control circuit
US3359511A (en) * 1964-11-04 1967-12-19 Ampex Automatic gain control system with pilot signal
AU407352B2 (de) * 1965-12-29 1970-10-15
US3763434A (en) * 1972-03-02 1973-10-02 Motorola Inc Battery connecting structure for portable device
US4287477A (en) * 1979-02-22 1981-09-01 Dynamic Compliance, Incorporated Feedback arrangement
US5742202A (en) * 1996-05-31 1998-04-21 Scientific-Atlanta, Inc. Method and apparatus for dynamic automatic gain control when pilot signal is lost

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE657057C (de) * 1933-08-31 1938-02-24 Siemens Ag Anordnung zur Regelung des UEbertragungsmasses in Signaluebertragungssystemen

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1984400A (en) * 1928-04-26 1934-12-18 Rca Corp Sensitivity control for radio receiving systems
US1822758A (en) * 1928-09-21 1931-09-08 Toulon Pierre Marie Gabriel System for transmitting and amplifying vibratory currents and movements
US1859498A (en) * 1928-10-02 1932-05-24 American Telephone & Telegraph Vacuum tube control system
US1811954A (en) * 1928-12-17 1931-06-30 American Telephone & Telegraph Transmission volume control
DE584781C (de) * 1930-03-06 1933-09-23 Aeg Elektrodynamischer Lautsprecher
US1949848A (en) * 1930-08-04 1934-03-06 Rca Corp Radioreceiver
GB413383A (en) * 1933-01-25 1934-07-19 Leonard Ernest Ryall Variable attenuation networks capable of providing automatic volume control of alternating signal currents
GB438565A (en) * 1934-05-26 1935-11-19 Standard Telephones Cables Ltd Thermionic valve circuits
NL43890C (de) * 1935-01-05
GB456062A (en) * 1935-03-28 1936-10-28 Frederick Gordon Frost Improvements in and relating to circuits for use with thermionic valves
US2220770A (en) * 1937-01-30 1940-11-05 Gen Electric Apparatus for controlling the apparent resistance of an amplifier anode
AT159204B (de) * 1938-02-26 1940-07-25 Siemens Ag Verfahren und Anordnung zur Erfassung oder Beeinflussung der Bewegungsvorgänge in dynamischen Lautsprechern.
US2365575A (en) * 1941-12-31 1944-12-19 Gen Electric Electron discharge amplifier
US2383867A (en) * 1943-01-13 1945-08-28 Rca Corp Power output amplifier circuit
US2379069A (en) * 1943-07-24 1945-06-26 Bell Telephone Labor Inc Automatic line testing and switching circuits
US2396990A (en) * 1943-12-09 1946-03-19 Bell Telephone Labor Inc Automatic line testing and switching circuits
GB673258A (en) * 1949-05-28 1952-06-04 Rca Corp Improvements in signal amplitude control systems employing semi-conductor devices
GB693255A (en) * 1951-04-12 1953-06-24 Automatic Telephone & Elect Improvements in or relating to carrier current transmission systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE657057C (de) * 1933-08-31 1938-02-24 Siemens Ag Anordnung zur Regelung des UEbertragungsmasses in Signaluebertragungssystemen

Also Published As

Publication number Publication date
DE972713C (de) 1959-09-10
FR981784A (fr) 1951-05-30
BE505025A (de)
US2740850A (en) 1956-04-03
FR61930E (fr) 1955-05-31
GB672169A (en) 1952-05-14
FR67870E (fr) 1958-03-25
FR71323E (fr) 1959-12-22
FR64203E (fr) 1955-11-09
FR64204E (fr) 1955-11-09
US2921267A (en) 1960-01-12
DE1108277B (de) 1961-06-08
BE505008A (de)
GB700129A (en) 1953-11-25
FR70706E (fr) 1959-06-10
BE544533A (de)
NL155159B (nl)
NL78172C (de)
GB764175A (en) 1956-12-19

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