ES330869A1 - System of transmission of data in a telephone switching system. (Machine-translation by Google Translate, not legally binding) - Google Patents

System of transmission of data in a telephone switching system. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES330869A1
ES330869A1 ES0330869A ES330869A ES330869A1 ES 330869 A1 ES330869 A1 ES 330869A1 ES 0330869 A ES0330869 A ES 0330869A ES 330869 A ES330869 A ES 330869A ES 330869 A1 ES330869 A1 ES 330869A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
telephone switching
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
ES0330869A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES330869A1 publication Critical patent/ES330869A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Abstract

A data transmission system in a telephone switching system comprising subscriber stations equipped with dial or rotary dial marking means, said disc dialing units being equipped to transmit voice frequency signals of certain frequencies, said means having rotary pulse contacts for transmitting DC pulses corresponding to the operation of the rotating disc, means for generating vocal frequencies to generate certain frequencies and means for connecting said generating means in parallel to said pulse contacts, said generating means having a relatively high resistance whereby when said pulse contacts are open, a certain frequency is superimposed on said DC pulses. (Machine-translation by Google Translate, not legally binding)
ES0330869A 1965-09-10 1966-09-02 System of transmission of data in a telephone switching system. (Machine-translation by Google Translate, not legally binding) Expired ES330869A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965ST024376 DE1264519B (en) 1965-09-10 1965-09-10 Data transmission in a telephone exchange to which subscriber sets and subscriber sets with a number switch set up for tone-frequency touch dialing are connected

Publications (1)

Publication Number Publication Date
ES330869A1 true ES330869A1 (en) 1967-06-16

Family

ID=7460089

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0330869A Expired ES330869A1 (en) 1965-09-10 1966-09-02 System of transmission of data in a telephone switching system. (Machine-translation by Google Translate, not legally binding)

Country Status (6)

Country Link
AT (1) AT281133B (en)
CH (1) CH453438A (en)
DE (1) DE1264519B (en)
ES (1) ES330869A1 (en)
NL (1) NL6612563A (en)
SE (1) SE344151B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE451422B (en) * 1985-06-27 1987-10-05 Anders Edvard Trell PROCEDURE FOR SIGNAL PROCESSING AT A PORT-PHONE PLANT INTENDED TO BE CONNECTED TO AN GENERAL PHONE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074669B (en) * 1957-01-08 1960-02-04 International Standard Electric Corporation, New York, N. Y. (V.St.A.) Transistor oscillator arrangement for generating a subscriber's own frequency for identifying the calling subscriber in telephone systems

Also Published As

Publication number Publication date
AT281133B (en) 1970-05-11
NL6612563A (en) 1967-03-13
SE344151B (en) 1972-03-27
DE1264519B (en) 1968-03-28
CH453438A (en) 1968-06-14

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