GB731669A - Automatic volume regulator - Google Patents

Automatic volume regulator

Info

Publication number
GB731669A
GB731669A GB12230/51A GB1223051A GB731669A GB 731669 A GB731669 A GB 731669A GB 12230/51 A GB12230/51 A GB 12230/51A GB 1223051 A GB1223051 A GB 1223051A GB 731669 A GB731669 A GB 731669A
Authority
GB
United Kingdom
Prior art keywords
motor
relay
circuit
speech
attenuation
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
Application number
GB12230/51A
Other languages
English (en)
Inventor
Cornelis Bevoort
Raimond Edouard Marie Baudet
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.)
Nederlanden Staat
Original Assignee
Nederlanden Staat
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
Application filed by Nederlanden Staat filed Critical Nederlanden Staat
Publication of GB731669A publication Critical patent/GB731669A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
GB12230/51A 1950-06-16 1951-05-24 Automatic volume regulator Expired GB731669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL307820X 1950-06-16

Publications (1)

Publication Number Publication Date
GB731669A true GB731669A (en) 1955-06-15

Family

ID=19783543

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12230/51A Expired GB731669A (en) 1950-06-16 1951-05-24 Automatic volume regulator

Country Status (5)

Country Link
US (1) US2817014A (enExample)
CH (1) CH307820A (enExample)
FR (1) FR1055894A (enExample)
GB (1) GB731669A (enExample)
NL (1) NL80093C (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3555192A (en) * 1969-07-08 1971-01-12 Nasa Audio signal processor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1447773A (en) * 1921-09-15 1923-03-06 American Telephone & Telegraph Radio transmission control system
US1762953A (en) * 1928-06-26 1930-06-10 Bell Telephone Labor Inc Signaling system
US1811955A (en) * 1928-12-17 1931-06-30 American Telephone & Telegraph Transmission volume control
US1811954A (en) * 1928-12-17 1931-06-30 American Telephone & Telegraph Transmission volume control
US1971679A (en) * 1931-01-30 1934-08-28 Bell Telephone Labor Inc Transmission control circuits
US2284617A (en) * 1940-10-22 1942-06-02 Bell Telephone Labor Inc Relay switching circuits
US2704326A (en) * 1945-03-17 1955-03-15 William L Whitson Electrical integrator
US2621808A (en) * 1945-08-24 1952-12-16 Frazier Simplex Apparatus responsive to variations in liquid level
US2678386A (en) * 1949-02-05 1954-05-11 Philco Corp Frequency modulation receiver
US2590973A (en) * 1950-03-25 1952-04-01 Robert L Jordan Overvoltage responsive control circuits
US2694162A (en) * 1951-06-07 1954-11-09 Bailey Meter Co Radiation detection

Also Published As

Publication number Publication date
CH307820A (fr) 1955-06-15
FR1055894A (fr) 1954-02-23
NL80093C (enExample)
US2817014A (en) 1957-12-17

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