AT270758B - Schaltungsanordnung zur tonfrequenten Tastwahl - Google Patents
Schaltungsanordnung zur tonfrequenten TastwahlInfo
- Publication number
- AT270758B AT270758B AT886265A AT886265A AT270758B AT 270758 B AT270758 B AT 270758B AT 886265 A AT886265 A AT 886265A AT 886265 A AT886265 A AT 886265A AT 270758 B AT270758 B AT 270758B
- Authority
- AT
- Austria
- Prior art keywords
- tone
- circuit arrangement
- touch dialing
- frequency touch
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1965ST023205 DE1233026B (de) | 1965-01-14 | 1965-01-14 | Tonfrequentes Tastwahiverfahren ohne Gleichstromschluesselzeichen mit Registerwiederherbeiruf |
Publications (1)
Publication Number | Publication Date |
---|---|
AT270758B true AT270758B (de) | 1969-05-12 |
Family
ID=7459663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT886265A AT270758B (de) | 1965-01-14 | 1965-09-30 | Schaltungsanordnung zur tonfrequenten Tastwahl |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT270758B (de) |
BE (1) | BE676326A (de) |
DE (1) | DE1233026B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT379478B (de) * | 1978-04-15 | 1986-01-10 | Telefonbau & Normalzeit Gmbh | Schaltungsanordnung fuer teilnehmerapparate in fernsprechnebenstellenanlagen mit tonfrequenter tastwahl |
-
1965
- 1965-01-14 DE DE1965ST023205 patent/DE1233026B/de active Pending
- 1965-09-30 AT AT886265A patent/AT270758B/de active
-
1966
- 1966-02-11 BE BE676326D patent/BE676326A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE676326A (de) | 1966-08-11 |
DE1233026B (de) | 1967-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AT262432B (de) | Leistungsschalter | |
FR1490410A (fr) | Contacts électriques | |
AT254989B (de) | Elektronischer Umschalter | |
FR1477313A (fr) | Disjoncteur | |
AT301674B (de) | Elektronischer Näherungsschalter | |
FR1485774A (fr) | Disjoncteur | |
FR1488779A (fr) | Circuit de conférence | |
FR1479847A (fr) | Circuit de déviation | |
AT293523B (de) | Elektronischer Näherungsschalter | |
FR1505970A (fr) | Interrupteurs électriques | |
FR1512354A (fr) | Circuit comparateur | |
AT270758B (de) | Schaltungsanordnung zur tonfrequenten Tastwahl | |
AT258599B (de) | Schalteranordnung | |
CH431628A (de) | Anpassschaltung | |
FR1503218A (fr) | Circuit de séparation | |
DK122484B (da) | Elektrisk afbryder. | |
CH444240A (de) | Tonfrequentes Tastwahlverfahren | |
FR1454090A (fr) | Sélecteur de circuit | |
FR1442490A (fr) | Commutateur | |
FR1494064A (fr) | Interrupteur électronique | |
AT253638B (de) | Zeitschalteinrichtung | |
FR1346876A (fr) | Interrupteur imprimé | |
FR1485468A (fr) | Disjoncteur | |
CH418396A (de) | Elektronischer Umschalter | |
AT257696B (de) | Schaltungsanordnung zur Sprachübertragung |