AT377143B - PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS - Google Patents

PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS

Info

Publication number
AT377143B
AT377143B AT76483A AT76483A AT377143B AT 377143 B AT377143 B AT 377143B AT 76483 A AT76483 A AT 76483A AT 76483 A AT76483 A AT 76483A AT 377143 B AT377143 B AT 377143B
Authority
AT
Austria
Prior art keywords
key selection
frequency process
participant apparatus
participant
frequency
Prior art date
Application number
AT76483A
Other languages
German (de)
Other versions
ATA76483A (en
Inventor
Othmar Ing Kraft
Original Assignee
Kapsch Ag
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 Kapsch Ag filed Critical Kapsch Ag
Priority to AT76483A priority Critical patent/AT377143B/en
Priority to CH699883A priority patent/CH661825A5/en
Priority to DE19843402156 priority patent/DE3402156C2/en
Priority to BG064458A priority patent/BG40820A3/en
Priority to HU84848A priority patent/HU189056B/en
Publication of ATA76483A publication Critical patent/ATA76483A/en
Application granted granted Critical
Publication of AT377143B publication Critical patent/AT377143B/en

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
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
    • H04M1/312—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses pulses produced by electronic circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Input From Keyboards Or The Like (AREA)
AT76483A 1983-03-04 1983-03-04 PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS AT377143B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT76483A AT377143B (en) 1983-03-04 1983-03-04 PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS
CH699883A CH661825A5 (en) 1983-03-04 1983-12-30 PARTICIPANT APPARATUS WITH KEY SELECTION.
DE19843402156 DE3402156C2 (en) 1983-03-04 1984-01-23 Subscriber set with touch dialing
BG064458A BG40820A3 (en) 1983-03-04 1984-02-28 Subscriber apparatus with key- board selection
HU84848A HU189056B (en) 1983-03-04 1984-03-02 Subset with push button selection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT76483A AT377143B (en) 1983-03-04 1983-03-04 PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS

Publications (2)

Publication Number Publication Date
ATA76483A ATA76483A (en) 1984-06-15
AT377143B true AT377143B (en) 1985-02-11

Family

ID=3499153

Family Applications (1)

Application Number Title Priority Date Filing Date
AT76483A AT377143B (en) 1983-03-04 1983-03-04 PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS

Country Status (5)

Country Link
AT (1) AT377143B (en)
BG (1) BG40820A3 (en)
CH (1) CH661825A5 (en)
DE (1) DE3402156C2 (en)
HU (1) HU189056B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548679A1 (en) * 1975-10-30 1977-05-05 Siemens Ag Control circuit for multiple frequency oscillator in telephone - has resistors in RC network switched in to alter frequency
DE2906579B1 (en) * 1979-02-21 1980-07-17 Licentia Gmbh Circuit arrangement for switching from sound-frequency signal delivery to speech mode and vice versa in telecommunications devices

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2425603A1 (en) * 1974-05-27 1975-12-04 Siemens Ag Subscriber circuit for telephone networks with key switch - only actuating selection devices supply circuit, not remaining circuitry
DE3001132A1 (en) * 1980-01-14 1981-07-16 Siemens AG, 1000 Berlin und 8000 München Telephone instrument for impulse type number selection - with switched low impedance path to facilitate subscriber identification by exchange

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548679A1 (en) * 1975-10-30 1977-05-05 Siemens Ag Control circuit for multiple frequency oscillator in telephone - has resistors in RC network switched in to alter frequency
DE2906579B1 (en) * 1979-02-21 1980-07-17 Licentia Gmbh Circuit arrangement for switching from sound-frequency signal delivery to speech mode and vice versa in telecommunications devices

Also Published As

Publication number Publication date
HUT35887A (en) 1985-07-29
CH661825A5 (en) 1987-08-14
DE3402156C2 (en) 1986-09-25
ATA76483A (en) 1984-06-15
BG40820A3 (en) 1987-02-16
DE3402156A1 (en) 1984-09-13
HU189056B (en) 1986-06-30

Similar Documents

Publication Publication Date Title
ATE63056T1 (en) CONTINUOUS TABLETING PROCESS.
IT8022512A0 (en) COMPOSITE FORMING EQUIPMENT.
IT8720678A0 (en) COMPOUND YARN AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME.
DE3672284D1 (en) FLOWLESS PLATING PROCESS.
EP0164419A4 (en) Mold clamping apparatus.
NO162451C (en) PRESSURE-RESISTABLE EQUIPMENT MATERIALS FOR USE UNDER WATER-WIDTH-DEPTH.
DE3483776D1 (en) DE-EMULSIONING PROCESS.
DE69001292D1 (en) COATING PROCESS.
EP0122268A4 (en) Structural members.
FI841009A (en) CHEMICAL PROCESS.
FI840177A (en) PROCESS FOER AOTERVINNING AV METALLER FRAON HOEGLEGERADE METALLSKROT.
GB2240455B (en) Gb9105433.8ting apparatus
DE3381088D1 (en) POLYMERIZATION PROCESS.
GR81145B (en) Process for preparitn n,n-di-n-propyl-4-hydroxy-3-methanesulfonamidophenethylamine
IT8322351A0 (en) PANEL FOR CONSTRUCTION, EQUIPMENT AND PROCEDURE FOR FORMING THE SAME.
FI882218A (en) PROCESS FOER ATT AVLAEGSNA TUNGMETALLFOERORENINGAR FRAON AVFALLSVATTEN.
DE3260757D1 (en) Process for producing cement, and cement obtained by the process
ES530382A0 (en) IMPROVEMENTS INTRODUCED IN MACHINE GUNS.
YU43658B (en) Process for preparing 7,16-dioxa-2-aza-10-0-cladinosyl-12,0-desosaminyl-4,5-dihydroxy-6-ethyl-3,5,9,11,13,15-hexamethyl-bicyclo(11.2.1)hexadeca-1(2)-ene-8
IT8123351A0 (en) ENDOPROTEINASE-LYS-C FROM BACTERIA, PROCESS FOR ITS OBTAINMENT AND USE.
AT377143B (en) PARTICIPANT APPARATUS WITH KEY SELECTION, ESPECIALLY AFTER THE MULTI-FREQUENCY PROCESS
DE59105753D1 (en) Electroplating process.
IT8322954A0 (en) PROCESS AND APPARATUS FOR PRODUCING STYRENIC-ALKENYLNITRILE COPOLYMERS.
DE3280210D1 (en) STOCK CATHODE AND METHOD FOR PRODUCING THE SAME.
EP0189482A4 (en) Shape evaluating apparatus.

Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties