BE608538A - Appareil d'atténuation sélectif en fréquence - Google Patents

Appareil d'atténuation sélectif en fréquence

Info

Publication number
BE608538A
BE608538A BE608538A BE608538A BE608538A BE 608538 A BE608538 A BE 608538A BE 608538 A BE608538 A BE 608538A BE 608538 A BE608538 A BE 608538A BE 608538 A BE608538 A BE 608538A
Authority
BE
Belgium
Prior art keywords
frequency selective
attenuation device
selective attenuation
frequency
selective
Prior art date
Application number
BE608538A
Other languages
English (en)
Inventor
Alan Mayer Gordon
Larned Ames Meacham
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE608538A publication Critical patent/BE608538A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/453—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling in which m-out-of-n signalling frequencies are transmitted

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
BE608538A 1960-10-03 1961-09-26 Appareil d'atténuation sélectif en fréquence BE608538A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5996260A 1960-10-03 1960-10-03

Publications (1)

Publication Number Publication Date
BE608538A true BE608538A (fr) 1962-01-15

Family

ID=22026434

Family Applications (1)

Application Number Title Priority Date Filing Date
BE608538A BE608538A (fr) 1960-10-03 1961-09-26 Appareil d'atténuation sélectif en fréquence

Country Status (3)

Country Link
US (1) US3103601A (fr)
BE (1) BE608538A (fr)
GB (1) GB935867A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3405367A (en) * 1966-10-19 1968-10-08 Army Usa Quiescent current stabilized transistor amplifier
US4047122A (en) * 1976-02-11 1977-09-06 Westinghouse Electric Corporation Frequency compensated differential amplifier
JPS57208465A (en) * 1981-06-18 1982-12-21 Pioneer Electronic Corp Discriminating circuit for frequency

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771518A (en) * 1953-03-27 1956-11-20 Rca Corp Frequency band separation amplifier system

Also Published As

Publication number Publication date
GB935867A (en) 1963-09-04
US3103601A (en) 1963-09-10

Similar Documents

Publication Publication Date Title
BE601808A (fr) Appareil d'injection
CH392590A (fr) Dispositif vibrateur
FR1312806A (fr) Appareil transducteur
CH412430A (fr) Dispositif vibratoire
FR1262160A (fr) Appareil de massage
FR1331250A (fr) Dispositif de nettoyage
FR1308937A (fr) Dispositif détecteur-convertisseur
FR1291700A (fr) Appareil de mécanothérapie
BE608538A (fr) Appareil d'atténuation sélectif en fréquence
CH408485A (de) Vibrationsvorrichtung
FR1260082A (fr) Dispositif d'accouplement-moteur
FR1270620A (fr) Appareil de massage
FR1302042A (fr) Appareil d'irradiation
CH393006A (de) Kupplungseinrichtung
CH382804A (fr) Appareil électro-acoustique
FR1294126A (fr) Appareil éjecto-convecteur
FR1257090A (fr) Appareil de mécanothérapie
FR1300305A (fr) Dispositif moto-compresseur
FR1254994A (fr) Appareil d'aéromassage
FR1304515A (fr) Appareil téléphonique
FR1256013A (fr) Appareil d'imprégnation
FR85015E (fr) Appareil de massage
FR1257949A (fr) Appareil d'exploration
ES78653Y (es) Dispositivo de bateo
FR1267513A (fr) Appareil d'immersion