CH370438A - Schaltungsanordnung eines Signalempfängers für Tonfrequenzfernwahl - Google Patents

Schaltungsanordnung eines Signalempfängers für Tonfrequenzfernwahl

Info

Publication number
CH370438A
CH370438A CH7512959A CH7512959A CH370438A CH 370438 A CH370438 A CH 370438A CH 7512959 A CH7512959 A CH 7512959A CH 7512959 A CH7512959 A CH 7512959A CH 370438 A CH370438 A CH 370438A
Authority
CH
Switzerland
Prior art keywords
audio frequency
circuit arrangement
signal receiver
frequency remote
remote selection
Prior art date
Application number
CH7512959A
Other languages
English (en)
Inventor
Pekarek Josef
Dlouhy Miroslav
Original Assignee
Tesla Np
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 Tesla Np filed Critical Tesla Np
Publication of CH370438A publication Critical patent/CH370438A/de

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Noise Elimination (AREA)
CH7512959A 1958-07-09 1959-06-29 Schaltungsanordnung eines Signalempfängers für Tonfrequenzfernwahl CH370438A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS364358 1958-07-09

Publications (1)

Publication Number Publication Date
CH370438A true CH370438A (de) 1963-07-15

Family

ID=5377060

Family Applications (1)

Application Number Title Priority Date Filing Date
CH7512959A CH370438A (de) 1958-07-09 1959-06-29 Schaltungsanordnung eines Signalempfängers für Tonfrequenzfernwahl

Country Status (4)

Country Link
CH (1) CH370438A (de)
DE (1) DE1073041B (de)
FR (1) FR1245586A (de)
GB (1) GB881779A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256720B (de) * 1964-09-30 1967-12-21 Siemens Ag Schaltungsanordnung zur Vermeidung des Einflusses von Stoerimpulsen auf neutrale, ueber einen Schalttransistor steuerbare Relais in Fernmeldeanlagen
US10998730B1 (en) 2019-04-26 2021-05-04 NeoVolta, Inc. Adaptive solar power battery storage system

Also Published As

Publication number Publication date
GB881779A (en) 1961-11-08
DE1073041B (de) 1960-01-14
FR1245586A (fr) 1960-11-10

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