CH544473A - Signaling device for generating acoustic signals - Google Patents

Signaling device for generating acoustic signals

Info

Publication number
CH544473A
CH544473A CH70972A CH70972A CH544473A CH 544473 A CH544473 A CH 544473A CH 70972 A CH70972 A CH 70972A CH 70972 A CH70972 A CH 70972A CH 544473 A CH544473 A CH 544473A
Authority
CH
Switzerland
Prior art keywords
acoustic signals
signaling device
generating acoustic
generating
signaling
Prior art date
Application number
CH70972A
Other languages
German (de)
Inventor
Francis Mcalonie Robert
Otto Sautter Helmuth
Carlaw Trimble David
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of CH544473A publication Critical patent/CH544473A/en

Links

Classifications

    • 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
    • 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)
  • Devices For Supply Of Signal Current (AREA)
CH70972A 1971-01-18 1972-01-18 Signaling device for generating acoustic signals CH544473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10732971A 1971-01-18 1971-01-18

Publications (1)

Publication Number Publication Date
CH544473A true CH544473A (en) 1973-11-15

Family

ID=22316077

Family Applications (1)

Application Number Title Priority Date Filing Date
CH70972A CH544473A (en) 1971-01-18 1972-01-18 Signaling device for generating acoustic signals

Country Status (9)

Country Link
JP (1) JPS5738065B1 (en)
BE (1) BE778121A (en)
CA (3) CA952634A (en)
CH (1) CH544473A (en)
DE (1) DE2201764C3 (en)
ES (1) ES399297A1 (en)
FR (1) FR2122468B1 (en)
GB (1) GB1372754A (en)
IT (1) IT948859B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5076707U (en) * 1973-11-14 1975-07-03
JPS5180105A (en) * 1975-01-09 1976-07-13 Nakayo Telecommunications
JPS526005A (en) * 1975-07-04 1977-01-18 Oki Electric Ind Co Ltd Tone ringer receiving system
CH619332A5 (en) * 1976-02-02 1980-09-15 Intertel Ii Inc Signal-controlled system for optional blocking or unblocking of a transmission line, and use of the system
JPS5547019A (en) * 1978-09-27 1980-04-02 Sanden Corp Sound insulation device for electromagnetic clutch
GB2071963B (en) * 1979-08-20 1983-07-27 Western Electric Co Electronic toner ringer
GB2121648B (en) * 1982-05-24 1986-12-03 Tad Avanti Ring detector and telephone line monitoring system for telephone answering unit
JPS6216669U (en) * 1985-07-12 1987-01-31
DE3535868C1 (en) * 1985-10-08 1987-05-21 Texas Instruments Deutschland Call signal recognition circuitry for telephone subscriber's appts. - has current sensor between rectifier and diode supplying detector sensing frequency
DE4212858A1 (en) * 1992-04-16 1993-10-21 Siemens Ag Ringer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951910A (en) * 1958-01-14 1960-09-06 North Electric Co Substation signalling device
US3210479A (en) * 1962-08-30 1965-10-05 Automatic Elect Lab Voice-frequency selective signalling arrangement
FR1444467A (en) * 1964-08-25 1966-07-01 Sits Soc It Telecom Siemens Set of components forming a variable note ringtone, especially for subscriber telephone set
US3508012A (en) * 1967-11-24 1970-04-21 Bell Telephone Labor Inc Compatible tone ringer

Also Published As

Publication number Publication date
CA939090A (en) 1973-12-25
DE2201764C3 (en) 1981-10-08
IT948859B (en) 1973-06-11
DE2201764B2 (en) 1980-12-18
JPS4715005A (en) 1972-08-17
JPS5738065B1 (en) 1982-08-13
CA952634A (en) 1974-08-06
CA939089A (en) 1973-12-25
ES399297A1 (en) 1975-05-01
FR2122468A1 (en) 1972-09-01
DE2201764A1 (en) 1972-08-03
BE778121A (en) 1972-05-16
FR2122468B1 (en) 1975-08-29
GB1372754A (en) 1974-11-06

Similar Documents

Publication Publication Date Title
SE380418B (en) SOUND DETERMINATION SYSTEM
AT308419B (en) System for playing back stored signals
CH544473A (en) Signaling device for generating acoustic signals
AT369210B (en) ARRANGEMENT FOR TRANSMITTING SIGNALS THROUGH PULSE DELTA MODULATION
CH546097A (en) HAND DEVICE FOR GENERATING ULTRASONIC VIBRATIONS.
AT322018B (en) DEVICE FOR GENERATING VIDEO SWITCHING PULSES
AT314853B (en) System for playing back stored signals
AT342469B (en) DEVICE FOR GENERATING MULTI-PHASE SIGNALS
CH514898A (en) Signal generator for generating two successive different acoustic signals
CH524935A (en) Device for equalizing binary bipolar signals
CH528189A (en) Arrangement for the transmission of digital signals
CH537572A (en) Device for the electromagnetic generation of measuring forces
AT336549B (en) DEVICE FOR GENERATING SOUND VIBRATIONS
BE782055A (en) DIGITAL TONE SIGNAL GENERATOR
AT324727B (en) SYSTEM FOR REPLAYING SIGNALS
CH553339A (en) DEVICE FOR GENERATING A CONTROL SIGNAL.
IT957225B (en) ELECTROACOUSTIC TRANSDUCER
AT293478B (en) Device for generating stochastic signals
CH491535A (en) Transistor circuit for generating or transmitting signal oscillations
AT314221B (en) Device for generating artificial reverberation
ES214247Y (en) ACOUSTIC SIGNALING APPARATUS.
AT300399B (en) Device for generating artificial reverberation
CH535076A (en) Device for generating vibrations
CH503523A (en) Device for generating mechanical vibrations
IT957218B (en) ELECTROACOUSTIC TRANSDUCER

Legal Events

Date Code Title Description
PL Patent ceased