NO802825L - Interkom-system - Google Patents
Interkom-systemInfo
- Publication number
- NO802825L NO802825L NO802825A NO802825A NO802825L NO 802825 L NO802825 L NO 802825L NO 802825 A NO802825 A NO 802825A NO 802825 A NO802825 A NO 802825A NO 802825 L NO802825 L NO 802825L
- Authority
- NO
- Norway
- Prior art keywords
- telephone
- circuit
- subscriber station
- signal
- selection
- Prior art date
Links
- 230000011664 signaling Effects 0.000 claims description 70
- 230000003287 optical effect Effects 0.000 claims description 38
- 230000004044 response Effects 0.000 claims description 31
- 230000006870 function Effects 0.000 claims description 22
- 230000000903 blocking effect Effects 0.000 claims description 15
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 6
- 230000005236 sound signal Effects 0.000 claims description 2
- BOJKULTULYSRAS-OTESTREVSA-N Andrographolide Chemical compound C([C@H]1[C@]2(C)CC[C@@H](O)[C@]([C@H]2CCC1=C)(CO)C)\C=C1/[C@H](O)COC1=O BOJKULTULYSRAS-OTESTREVSA-N 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 25
- 230000008859 change Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 101000945119 Solanum lycopersicum Homeotic protein knotted-1 Proteins 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009131 signaling function Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013041 optical simulation Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001629 suppression Effects 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/71—Substation extension arrangements
- H04M1/715—Substation extension arrangements using two or more extensions per line
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
- H04M9/007—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line wherein the key telephone sets are star-connected to a central unit by a limited number of lines
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7907134A NL7907134A (nl) | 1979-09-25 | 1979-09-25 | Telefooninstallatie van de als sterpuntinstallatie aangeduide soort. |
Publications (1)
Publication Number | Publication Date |
---|---|
NO802825L true NO802825L (no) | 1981-03-26 |
Family
ID=19833910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO802825A NO802825L (no) | 1979-09-25 | 1980-09-24 | Interkom-system |
Country Status (10)
Country | Link |
---|---|
AU (1) | AU6265780A (fr) |
DK (1) | DK403980A (fr) |
ES (1) | ES495348A0 (fr) |
FI (1) | FI802986A (fr) |
FR (1) | FR2466161A1 (fr) |
GB (1) | GB2060316A (fr) |
IT (1) | IT1149255B (fr) |
NL (1) | NL7907134A (fr) |
NO (1) | NO802825L (fr) |
SE (1) | SE8006662L (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3000858C2 (de) * | 1980-01-11 | 1986-11-13 | Neumann Elektronik GmbH, 4330 Mülheim | Tastengesteuerte Wechsel-, Gegen- oder Lautsprechanlage |
US4744103A (en) * | 1985-11-27 | 1988-05-10 | Rauland-Borg Corporation | Computer controlled multi-link communication system |
IN167984B (fr) * | 1986-09-23 | 1991-01-19 | Siemens Ag | |
US4769837A (en) * | 1987-05-04 | 1988-09-06 | Eoa Systems, Inc. | Device for adding intercom functions to a phone system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2139693B1 (fr) * | 1971-05-28 | 1973-05-25 | Supravox Sarl | |
GB1369829A (en) * | 1971-12-23 | 1974-10-09 | Standard Telephones Cables Ltd | Electric impulse transmitters |
FR2285775A1 (fr) * | 1974-09-17 | 1976-04-16 | Berna Guy | Installation d'interphones a appels selectifs |
US4088846A (en) * | 1977-03-30 | 1978-05-09 | Bell Telephone Laboratories, Incorporated | Hold-plus-intercom for single-line stations |
-
1979
- 1979-09-25 NL NL7907134A patent/NL7907134A/nl not_active Application Discontinuation
-
1980
- 1980-09-22 FI FI802986A patent/FI802986A/fi not_active Application Discontinuation
- 1980-09-23 GB GB8030653A patent/GB2060316A/en not_active Withdrawn
- 1980-09-24 NO NO802825A patent/NO802825L/no unknown
- 1980-09-24 DK DK403980A patent/DK403980A/da unknown
- 1980-09-24 AU AU62657/80A patent/AU6265780A/en not_active Abandoned
- 1980-09-24 SE SE8006662A patent/SE8006662L/ not_active Application Discontinuation
- 1980-09-24 FR FR8020536A patent/FR2466161A1/fr not_active Withdrawn
- 1980-09-24 IT IT24872/80A patent/IT1149255B/it active
- 1980-09-25 ES ES495348A patent/ES495348A0/es active Granted
Also Published As
Publication number | Publication date |
---|---|
ES8105913A1 (es) | 1981-06-16 |
FI802986A (fi) | 1981-03-26 |
GB2060316A (en) | 1981-04-29 |
IT1149255B (it) | 1986-12-03 |
AU6265780A (en) | 1981-04-09 |
SE8006662L (sv) | 1981-03-26 |
ES495348A0 (es) | 1981-06-16 |
IT8024872A0 (it) | 1980-09-24 |
DK403980A (da) | 1981-03-26 |
FR2466161A1 (fr) | 1981-03-27 |
NL7907134A (nl) | 1981-03-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4769837A (en) | Device for adding intercom functions to a phone system | |
CA1210879A (fr) | Systeme de telecommunication | |
US5048076A (en) | Control apparatus for an automated telephone attendant | |
US5086458A (en) | Telephone answering system and apparatus for direct caller selection of a party line extension | |
US4113986A (en) | Telephone controlled lock release arrangement | |
US4028498A (en) | Private automatic branch exchange system and apparatus | |
US4079212A (en) | Extension telephone system | |
SE467810B (sv) | Saett att signalera/kommunicera inom ett porttelefonsystem samt porttelefonsystem foer kommunikation enligt saettet | |
US3988549A (en) | Keyboard type telephone station adapted to transmit dialling pulses and multifrequency signals | |
JPH05160886A (ja) | ディジタル端末装置 | |
US4408102A (en) | Two-wire exchange telephone system | |
US3420963A (en) | Communication system line circuit particularly for key telephone systems | |
NO802825L (no) | Interkom-system | |
US3784756A (en) | Subscriber loop range extender | |
US4219700A (en) | Partyline subscriber interface circuit | |
US2975237A (en) | Telephone conference circuit | |
US3166642A (en) | Signaling arrangement | |
US4095056A (en) | Toll restrictor access circuit | |
US5005199A (en) | Telephone interface circuit | |
US3647983A (en) | Key system line card circuit | |
US3591728A (en) | Local ringing and ring-trip relay for carrier terminal | |
USRE23057E (en) | atkins | |
US3378642A (en) | Line lockout circuit | |
US2200820A (en) | Automatic telephone system | |
NO166365B (no) | Nye 7-acyl-3-halogenindoler som er anvendbare som mellomprodukter ved fremstilling av 7-acylindolin-2-oner. |