AT340484B - TELEPHONE SUBSCRIBER STATION WITH A KEYBOARD FOR ENTERING DIALING INFORMATION - Google Patents
TELEPHONE SUBSCRIBER STATION WITH A KEYBOARD FOR ENTERING DIALING INFORMATIONInfo
- Publication number
- AT340484B AT340484B AT506473A AT506473A AT340484B AT 340484 B AT340484 B AT 340484B AT 506473 A AT506473 A AT 506473A AT 506473 A AT506473 A AT 506473A AT 340484 B AT340484 B AT 340484B
- Authority
- AT
- Austria
- Prior art keywords
- keyboard
- subscriber station
- telephone subscriber
- dialing information
- entering dialing
- Prior art date
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
-
- 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
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH972972A CH544461A (en) | 1972-06-29 | 1972-06-29 | Telephone subscriber station for generating series of pulses preselected using a keyboard |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA506473A ATA506473A (en) | 1977-04-15 |
AT340484B true AT340484B (en) | 1977-12-12 |
Family
ID=4355044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT506473A AT340484B (en) | 1972-06-29 | 1973-06-08 | TELEPHONE SUBSCRIBER STATION WITH A KEYBOARD FOR ENTERING DIALING INFORMATION |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT340484B (en) |
CH (1) | CH544461A (en) |
DE (1) | DE2329550B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3725315A1 (en) * | 1987-07-30 | 1989-02-09 | Siemens Ag | Circuit arrangement for an electronic exchange line holding coil in an exchange junction circuit of a telephone private branch exchange having dialling control which emits pulses |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2282198A1 (en) * | 1974-08-12 | 1976-03-12 | Trt Telecom Radio Electr | Keyboard telephone for long lines - uses speech loop current to power MOS circuit |
ATA677778A (en) * | 1978-09-20 | 1984-02-15 | Siemens Ag Oesterreich | CIRCUIT FOR TELECOMMUNICATION, ESPECIALLY TELEPHONE PARTICIPANTS, AND TRANSMISSIONS WITH IMPULSE GIVING CONTROL |
DE3119080C2 (en) * | 1981-05-14 | 1985-12-12 | Neumann Elektronik GmbH, 4330 Mülheim | Automatic answering machine |
DE3201536C2 (en) * | 1982-01-20 | 1986-02-06 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Circuit arrangement for a signaling device in telecommunications systems |
DE3245005C2 (en) * | 1982-12-06 | 1984-11-22 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Power supply for a circuit arrangement for impulse dialing signals in a telephone set |
-
1972
- 1972-06-29 CH CH972972A patent/CH544461A/en not_active IP Right Cessation
-
1973
- 1973-06-08 AT AT506473A patent/AT340484B/en active
- 1973-06-09 DE DE19732329550 patent/DE2329550B2/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3725315A1 (en) * | 1987-07-30 | 1989-02-09 | Siemens Ag | Circuit arrangement for an electronic exchange line holding coil in an exchange junction circuit of a telephone private branch exchange having dialling control which emits pulses |
Also Published As
Publication number | Publication date |
---|---|
DE2329550A1 (en) | 1974-01-17 |
DE2329550B2 (en) | 1976-01-02 |
ATA506473A (en) | 1977-04-15 |
CH544461A (en) | 1973-11-15 |
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