ES461745A1 - Receiver/sender - Google Patents

Receiver/sender

Info

Publication number
ES461745A1
ES461745A1 ES461745A ES461745A ES461745A1 ES 461745 A1 ES461745 A1 ES 461745A1 ES 461745 A ES461745 A ES 461745A ES 461745 A ES461745 A ES 461745A ES 461745 A1 ES461745 A1 ES 461745A1
Authority
ES
Spain
Prior art keywords
receiver
telephone network
signaling information
transmitter apparatus
transmitter
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
ES461745A
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom Ltd
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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of ES461745A1 publication Critical patent/ES461745A1/en
Expired legal-status Critical Current

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
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • 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
    • H04M1/505—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 signals generated in digital form

Abstract

Improvements in receiver/transmitter apparatus for detecting and transmitting signaling information in a telephone network of the type of apparatus that is arranged to detect signaling information of a transmission facility in a telephone network and to transmit signaling information from a switching apparatus to the telephone network, the receiver/transmitter apparatus having virtually defined operating parameters by a set of word instructions, and the switching apparatus having a signal link circuit for connection between the receiver/transmitter apparatus and a transmission device in the telephone network. (Machine-translation by Google Translate, not legally binding)
ES461745A 1976-08-19 1977-08-19 Receiver/sender Expired ES461745A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA259,463A CA1053821A (en) 1976-08-19 1976-08-19 Receiver/sender for signalling between telephone switching facilities

Publications (1)

Publication Number Publication Date
ES461745A1 true ES461745A1 (en) 1978-05-01

Family

ID=4106691

Family Applications (1)

Application Number Title Priority Date Filing Date
ES461745A Expired ES461745A1 (en) 1976-08-19 1977-08-19 Receiver/sender

Country Status (9)

Country Link
JP (1) JPS5324706A (en)
BE (1) BE857802A (en)
CA (1) CA1053821A (en)
DE (1) DE2735478A1 (en)
ES (1) ES461745A1 (en)
FR (1) FR2362545A1 (en)
GB (1) GB1553019A (en)
NL (1) NL7707137A (en)
SE (1) SE7709370L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0219296A (en) * 1988-07-05 1990-01-23 Tokyo Kyoei Shokai:Kk Hopper gate opening and closing apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603773A (en) * 1969-08-28 1971-09-07 Vernitron Corp Digital pulse rate generator
US3716794A (en) * 1972-04-26 1973-02-13 E Teggatz Frequency dividing apparatus
FR2280141A1 (en) * 1974-07-26 1976-02-20 Materiel Telephonique System of signalling between data processing centres - has seven frequency divider sub-assemblies, decoders and filters

Also Published As

Publication number Publication date
SE7709370L (en) 1978-02-20
GB1553019A (en) 1979-09-19
BE857802A (en) 1978-02-16
JPS5324706A (en) 1978-03-07
NL7707137A (en) 1978-02-21
FR2362545A1 (en) 1978-03-17
CA1053821A (en) 1979-05-01
DE2735478A1 (en) 1978-02-23

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