IE41749B1 - Circuit arrangement for tellephone subset - Google Patents
Circuit arrangement for tellephone subsetInfo
- Publication number
- IE41749B1 IE41749B1 IE2205/75A IE220575A IE41749B1 IE 41749 B1 IE41749 B1 IE 41749B1 IE 2205/75 A IE2205/75 A IE 2205/75A IE 220575 A IE220575 A IE 220575A IE 41749 B1 IE41749 B1 IE 41749B1
- Authority
- IE
- Ireland
- Prior art keywords
- circuit
- outpulsing
- logic control
- control circuit
- line
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 230000011664 signaling Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010791 quenching Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 101000603877 Homo sapiens Nuclear receptor subfamily 1 group I member 2 Proteins 0.000 description 1
- 102100038494 Nuclear receptor subfamily 1 group I member 2 Human genes 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 101150083367 TRI3 gene Proteins 0.000 description 1
- 101150078083 TRI5 gene Proteins 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004353 relayed correlation spectroscopy Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB44059/74A GB1521468A (en) | 1974-10-11 | 1974-10-11 | Circuit arrangement for telephone subset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41749L IE41749L (en) | 1976-04-11 |
| IE41749B1 true IE41749B1 (en) | 1980-03-12 |
Family
ID=10431564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2205/75A IE41749B1 (en) | 1974-10-11 | 1975-10-08 | Circuit arrangement for tellephone subset |
Country Status (5)
| Country | Link |
|---|---|
| FR (1) | FR2287813A1 (enExample) |
| GB (1) | GB1521468A (enExample) |
| HK (1) | HK39579A (enExample) |
| IE (1) | IE41749B1 (enExample) |
| ZA (1) | ZA756365B (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2451690A1 (fr) * | 1979-03-16 | 1980-10-10 | Horlogerie Photograph Fse | Perfectionnements aux circuits de postes telephoniques a clavier |
| FR2505586A1 (fr) * | 1981-05-05 | 1982-11-12 | Thomson Csf Mat Tel | Poste telephonique a clavier |
| FR2508744A1 (fr) * | 1981-06-26 | 1982-12-31 | Thomson Csf Mat Tel | Poste telephonique a clavier et a ecoute amplifiee |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1394148A (en) * | 1972-09-11 | 1975-05-14 | Int Standard Electric Corp | Push-button telphone subset |
-
1974
- 1974-10-11 GB GB44059/74A patent/GB1521468A/en not_active Expired
-
1975
- 1975-10-08 ZA ZA00756365A patent/ZA756365B/xx unknown
- 1975-10-08 IE IE2205/75A patent/IE41749B1/en unknown
- 1975-10-10 FR FR7531058A patent/FR2287813A1/fr active Granted
-
1979
- 1979-06-21 HK HK395/79A patent/HK39579A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2287813A1 (fr) | 1976-05-07 |
| IE41749L (en) | 1976-04-11 |
| GB1521468A (en) | 1978-08-16 |
| HK39579A (en) | 1979-06-29 |
| FR2287813B1 (enExample) | 1979-01-05 |
| ZA756365B (en) | 1976-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3856982A (en) | Telephone dialing arrangement | |
| US3956596A (en) | Circuit arrangements in telephone apparatus | |
| US3980837A (en) | Apparatus for pulsing in telephone sets | |
| US3973084A (en) | Electric impulse transmitters for telephone instruments | |
| IE41749B1 (en) | Circuit arrangement for tellephone subset | |
| US4267409A (en) | Keyboard decade digital dial | |
| US4046971A (en) | Switching arrangement for telephone subsets using impulse-type pushbutton calling | |
| US4032722A (en) | Telephone dialing arrangement for calling a single party | |
| US3683118A (en) | Interruptor for ringing signals from automatic telephone exchanges | |
| US3614318A (en) | Data transmission system | |
| US3761640A (en) | Telephone dialer with two different pulse rates | |
| US4000380A (en) | Toll restrictor for touch type digit selector | |
| US4081619A (en) | Switching arrangement for telecommunication subscriber stations using key-operated selection units | |
| US3932707A (en) | Electric impulse transmitters for telephone instruments | |
| EP0034843B1 (en) | Line interruption arrangement | |
| US3702905A (en) | Multi-station shared automatic dialing apparatus | |
| US3284577A (en) | Substation apparatus employing a multi- frequency signaling arrangement | |
| US2049615A (en) | Automatic switching system | |
| US2849539A (en) | Magnetic core circuits | |
| US4096357A (en) | Toll-call restriction system | |
| US3592974A (en) | Automatic dialing apparatus | |
| US3218392A (en) | Signalling system for use with toll ticketing equipment | |
| JPS6351627B2 (enExample) | ||
| SU1131040A1 (ru) | Устройство дл блокировки номеронабирател телефонного аппарата | |
| SU1607054A1 (ru) | Устройство запуска импульсного источника вторичного электропитани |