ES382259A1 - Improvements to subscriber's carrier systems - Google Patents

Improvements to subscriber's carrier systems

Info

Publication number
ES382259A1
ES382259A1 ES382259A ES382259A ES382259A1 ES 382259 A1 ES382259 A1 ES 382259A1 ES 382259 A ES382259 A ES 382259A ES 382259 A ES382259 A ES 382259A ES 382259 A1 ES382259 A1 ES 382259A1
Authority
ES
Spain
Prior art keywords
line
subscriber
pass filter
exchange
carrier
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
ES382259A
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 ES382259A1 publication Critical patent/ES382259A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
    • H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D33/00—Rotary fluid couplings or clutches of the hydrokinetic type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A party line system comprises a single line pair connecting two subscribers to an exchange where the additional subscriber receives highfrequency signals generated in carrier current equipment connected to a selection switching stage of the exchange so that one equipment serves a plurality of lines but where each line is provided with a circuit capable of detecting signalling data emanating from the subscriber. As shown, channel OCa carries normal voice frequency signals from the exchange switching network SW2, through part of final selector stage SW1a, through a low-pass filter TL to the line pair ML. The high-frequency signals which are modulated/demodulated in carrier unit CSU are connected to a plurality of channels AC through part of final selector stage SW1b, high pass filter TH to line ML. Line supervision detectors SDa, SDb are provided for each line with the detector for the carrier frequency channel being through a band pass filter Tsx. Frequencies Fsx, Fxs are used for transmissions from and to the subscriber respectively.
ES382259A 1969-07-29 1970-07-28 Improvements to subscriber's carrier systems Expired ES382259A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6925872A FR2052210A5 (en) 1969-07-29 1969-07-29

Publications (1)

Publication Number Publication Date
ES382259A1 true ES382259A1 (en) 1972-11-16

Family

ID=9038223

Family Applications (1)

Application Number Title Priority Date Filing Date
ES382259A Expired ES382259A1 (en) 1969-07-29 1970-07-28 Improvements to subscriber's carrier systems

Country Status (7)

Country Link
BE (2) BE754072A (en)
CH (1) CH522987A (en)
DE (1) DE2037400C3 (en)
ES (1) ES382259A1 (en)
FR (1) FR2052210A5 (en)
GB (1) GB1253346A (en)
NL (1) NL77057C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112575521B (en) * 2020-11-28 2022-05-31 珠海格力电器股份有限公司 Control method and device for user inquiry duration of multi-drum washing machine and washing machine

Also Published As

Publication number Publication date
GB1253346A (en) 1971-11-10
DE2037400A1 (en) 1971-02-18
BE754072A (en) 1971-01-29
CH522987A (en) 1972-05-15
DE2037400C3 (en) 1975-01-09
NL77057C (en)
DE2037400B2 (en) 1974-05-30
FR2052210A5 (en) 1971-04-09
BE521967A (en)

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