FR1238493A - Perfectionnements aux dispositifs de signalisation à courants alternatifs - Google Patents

Perfectionnements aux dispositifs de signalisation à courants alternatifs

Info

Publication number
FR1238493A
FR1238493A FR803776A FR803776A FR1238493A FR 1238493 A FR1238493 A FR 1238493A FR 803776 A FR803776 A FR 803776A FR 803776 A FR803776 A FR 803776A FR 1238493 A FR1238493 A FR 1238493A
Authority
FR
France
Prior art keywords
alternating current
signaling devices
current signaling
devices
alternating
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
FR803776A
Other languages
English (en)
Inventor
Jean-Victor Martens
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1238493A publication Critical patent/FR1238493A/fr
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
    • 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
    • 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
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • 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
    • H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
    • H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
FR803776A 1958-09-03 1959-08-28 Perfectionnements aux dispositifs de signalisation à courants alternatifs Expired FR1238493A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL231054 1958-09-03

Publications (1)

Publication Number Publication Date
FR1238493A true FR1238493A (fr) 1960-12-02

Family

ID=19751331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR803776A Expired FR1238493A (fr) 1958-09-03 1959-08-28 Perfectionnements aux dispositifs de signalisation à courants alternatifs

Country Status (6)

Country Link
US (1) US3140358A (fr)
BE (1) BE582243R (fr)
CH (1) CH379584A (fr)
DE (1) DE1102817B (fr)
DK (1) DK108398C (fr)
FR (1) FR1238493A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187107A (en) * 1960-03-04 1965-06-01 Int Standard Electric Corp Voice-frequency key-dialing subscriber's station
DE1185665B (de) * 1963-09-14 1965-01-21 Standard Elektrik Lorenz Ag Tastengesteuerter Mehrfrequenz-Tongenerator
DE2162898A1 (de) * 1971-06-22 1972-12-28 Sits Soc It Telecom Siemens Schaltungsanordnung zum Identifizieren von Gleichstromsignalen in einer Fernsprechanlage mit Tastenwahl
US4495485A (en) * 1980-12-12 1985-01-22 General Electric Company Touch control arrangement for data entry
US4817010A (en) * 1987-03-02 1989-03-28 Mars Incorporated Vending machine control with improved vendor selector switch detection and decoding apparatus

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554201A (en) * 1946-06-19 1951-05-22 Ericsson Telefon Ab L M Key-sending automatic telephone signaling system
US2470145A (en) * 1947-09-25 1949-05-17 American Telephone & Telegraph Multifrequency signaling system
NL81161C (fr) * 1950-07-21
NL96910C (fr) * 1954-10-25
DE1050832B (fr) * 1956-06-07 1959-02-19
NL100359C (fr) * 1957-03-14
US2897451A (en) * 1958-02-27 1959-07-28 Robert B Hammett Multifrequency devices and systems associated therewith
US3011028A (en) * 1958-05-07 1961-11-28 Leich Electric Co Signaling system

Also Published As

Publication number Publication date
BE582243R (nl) 1960-03-02
DE1102817B (de) 1961-03-23
DK108398C (da) 1967-12-04
CH379584A (de) 1964-07-15
US3140358A (en) 1964-07-07

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