BE630764A - - Google Patents

Info

Publication number
BE630764A
BE630764A BE630764DA BE630764A BE 630764 A BE630764 A BE 630764A BE 630764D A BE630764D A BE 630764DA BE 630764 A BE630764 A BE 630764A
Authority
BE
Belgium
Application number
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.)
Publication of BE630764A publication Critical patent/BE630764A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • 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
    • H03G1/0047—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using photo-electric elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Amplifiers (AREA)
BE630764D 1962-04-11 BE630764A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US186735A US3213391A (en) 1962-04-11 1962-04-11 Photo-electrical compandor

Publications (1)

Publication Number Publication Date
BE630764A true BE630764A (pt)

Family

ID=22686086

Family Applications (1)

Application Number Title Priority Date Filing Date
BE630764D BE630764A (pt) 1962-04-11

Country Status (5)

Country Link
US (1) US3213391A (pt)
BE (1) BE630764A (pt)
CH (1) CH444234A (pt)
GB (1) GB967152A (pt)
NL (1) NL291523A (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333208A (en) * 1963-10-09 1967-07-25 Gen Electric Automatic gain control amplifier
US3327239A (en) * 1964-01-06 1967-06-20 Robert J Carpenter Four-terminal direct-current amplifier
US3397285A (en) * 1964-07-22 1968-08-13 Motorola Inc Electronic apparatus
US3466572A (en) * 1965-10-14 1969-09-09 Automatic Elect Lab Apparatus for regulating signals in response to their total root mean square value
US3406357A (en) * 1966-03-14 1968-10-15 Itt Compandor that supplies gain to the system
US3436674A (en) * 1966-03-14 1969-04-01 Fairchild Recording Equipment Gain control device for high fidelity audio systems
DE1286114B (de) * 1966-04-01 1969-01-02 Bavaria Atelier Gmbh Schaltungsanordnung zum Daempfen einer Tonfrequenzspannung um einstellbare, gewuenschte Werte
US3625124A (en) * 1968-07-03 1971-12-07 Asahi Optical Co Ltd Shutter timing mechanism using inverse feedback circuit
US3611173A (en) * 1969-11-03 1971-10-05 Atomic Energy Commission Charge-sensitive preamplifier using optoelectronic feedback
US4087645A (en) * 1976-12-09 1978-05-02 Alfred Magnus Hestad Telephone switching system
US4700379A (en) * 1985-12-18 1987-10-13 The Boeing Company Aircraft communications apparatus
US5083080A (en) * 1989-06-30 1992-01-21 Anritsu Corporation High frequency signal measuring equipment with cabled detecting and signal companding
US20040120534A1 (en) * 2002-12-19 2004-06-24 Mills William H. Headphone automatic gain control system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843288A (en) * 1928-10-08 1932-02-02 Jr Samuel E Leonard Electrical system and appliance
US2207243A (en) * 1938-04-14 1940-07-09 Rca Corp Volume compression device for sound reproducers
US2328951A (en) * 1942-07-17 1943-09-07 Bell Telephone Labor Inc Two-way signal transmission system
US2727683A (en) * 1946-01-11 1955-12-20 Philip H Allen Registers
US2825764A (en) * 1954-02-24 1958-03-04 Bell Telephone Labor Inc Cross-control compandor used as echo suppressors
US3059119A (en) * 1961-06-22 1962-10-16 Sinclair Oil & Gas Company Photoelectric apparatus

Also Published As

Publication number Publication date
GB967152A (en) 1964-08-19
US3213391A (en) 1965-10-19
CH444234A (de) 1967-09-30
NL291523A (pt)

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