ES449328A1 - Un metodo y un aparato para controlar el estado de energia de terminales de datos a distancia en un sistema de comuni- cacion digital. - Google Patents
Un metodo y un aparato para controlar el estado de energia de terminales de datos a distancia en un sistema de comuni- cacion digital.Info
- Publication number
- ES449328A1 ES449328A1 ES449328A ES449328A ES449328A1 ES 449328 A1 ES449328 A1 ES 449328A1 ES 449328 A ES449328 A ES 449328A ES 449328 A ES449328 A ES 449328A ES 449328 A1 ES449328 A1 ES 449328A1
- Authority
- ES
- Spain
- Prior art keywords
- telephone
- power
- exchange
- digital
- test
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/241—Testing correct operation using pseudo-errors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
Abstract
Un método para controlar el estado de energía de terminales de datos a distancia en un sistema de comunicación digital de la clase en la que la energía para los terminales es suministrada desde una estación de conmutación central, caracterizado porque dicho método comprende controlar la señal digital transmitida a dichos terminales desde dicha estación de conmutación central para hacer que dichos terminales adopten ya sea un estado de energía conectada, en el que es consumida energía de funcionamiento continua por dichos terminales, ya sea un estado de energía desconectada en el que es consumida una pequeña cantidad de energía por dichos terminales, siendo dicha pequeña suficiente solamente para activar dichos terminales y dicha estación de conmutación central para comunicar, siendo efectuada la conmutación de un terminal del estado de energía desconectada al estado de energía conectada en el terminal cuando dicha señal digital transmitida incluye una señal de control particular.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPC215575 | 1975-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES449328A1 true ES449328A1 (es) | 1978-02-16 |
Family
ID=3766259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES449328A Expired ES449328A1 (es) | 1975-06-30 | 1976-06-28 | Un metodo y un aparato para controlar el estado de energia de terminales de datos a distancia en un sistema de comuni- cacion digital. |
Country Status (14)
Country | Link |
---|---|
US (1) | US4070554A (es) |
JP (1) | JPS5918917B2 (es) |
BE (1) | BE843635A (es) |
BR (1) | BR7604238A (es) |
DE (1) | DE2629449C2 (es) |
DK (1) | DK292176A (es) |
ES (1) | ES449328A1 (es) |
FI (1) | FI761899A (es) |
FR (1) | FR2316815A1 (es) |
GB (1) | GB1540900A (es) |
HU (1) | HU175908B (es) |
IT (1) | IT1062497B (es) |
NL (1) | NL7607117A (es) |
NO (1) | NO144186C (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2735341C3 (de) * | 1977-08-05 | 1984-05-10 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Anordnung zur Durchgangsprüfung in Fernmeldeanlagen |
DE2919618C2 (de) * | 1979-05-16 | 1981-06-19 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Schaltungsanordnung für mit PCM-Anschlußleitungen verbundene Fernsprechapparate |
FR2519218A1 (fr) * | 1981-12-24 | 1983-07-01 | Telecommunications Sa | Procede et dispositif d'alimentation d'une regie d'abonne |
JPS58136336A (ja) * | 1982-02-08 | 1983-08-13 | 横河電機株式会社 | 超音波cwドプラシステム |
DE3311386C2 (de) * | 1983-03-29 | 1986-08-07 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Verfahren zum Betreiben von Endgeräten eines digitalen Teilnehmeranschlusses |
US4558182A (en) * | 1983-08-01 | 1985-12-10 | Keptel, Inc. | Remotely-activated switching apparatus |
US4536617A (en) * | 1983-08-01 | 1985-08-20 | Keptel, Inc. | Remotely-activated switching apparatus |
US4550225A (en) * | 1983-10-31 | 1985-10-29 | Keptel, Inc. | AC Signal-activated switching apparatus |
SE501021C2 (sv) * | 1993-04-01 | 1994-10-24 | Ericsson Telefon Ab L M | Anordning för provning av linjeanslutningar vid telefonväxel |
US6317839B1 (en) * | 1999-01-19 | 2001-11-13 | International Business Machines Corporation | Method of and apparatus for controlling supply of power to a peripheral device in a computer system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3069498A (en) * | 1961-01-31 | 1962-12-18 | Richard J Frank | Measuring circuit for digital transmission system |
US3427554A (en) * | 1967-07-03 | 1969-02-11 | Honeywell Inc | Control apparatus |
DE1815281B2 (de) * | 1968-12-18 | 1976-08-05 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Verfahren zur ueberwachung der teilnehmerschleife bei einem fernsprechsystem |
US3655915A (en) * | 1970-05-07 | 1972-04-11 | Gen Datacomm Ind Inc | Closed loop test method and apparatus for duplex data transmission modem |
CH512162A (de) * | 1970-05-12 | 1971-08-31 | Sodeco Soc Des Compteurs | Einrichtung zur teilnehmerseitigen Steuerung des Ladevorganges einer Pufferbatterie in einer Fernsprechanlage |
US3757032A (en) * | 1971-01-28 | 1973-09-04 | Xerox Corp | Method and apparatus for selectively enabling a remote receiver |
US3786187A (en) * | 1971-03-23 | 1974-01-15 | Alitalia Spa | Apparatus for testing systems and data transmitting networks by simulation |
BE788949A (fr) * | 1971-11-01 | 1973-03-19 | Gen Datacomm Ind Inc | Procede d'essai de modulateur-demodulateur |
US3906174A (en) * | 1973-11-16 | 1975-09-16 | Gte Automatic Electric Lab Inc | Cable pair testing arrangement |
-
1976
- 1976-06-25 GB GB26666/76A patent/GB1540900A/en not_active Expired
- 1976-06-28 ES ES449328A patent/ES449328A1/es not_active Expired
- 1976-06-29 BR BR7604238A patent/BR7604238A/pt unknown
- 1976-06-29 DK DK292176A patent/DK292176A/da not_active Application Discontinuation
- 1976-06-29 HU HU76EI684A patent/HU175908B/hu unknown
- 1976-06-29 FR FR7619802A patent/FR2316815A1/fr active Granted
- 1976-06-29 NO NO76762258A patent/NO144186C/no unknown
- 1976-06-29 NL NL7607117A patent/NL7607117A/xx not_active Application Discontinuation
- 1976-06-30 FI FI761899A patent/FI761899A/fi not_active Application Discontinuation
- 1976-06-30 IT IT7624853A patent/IT1062497B/it active
- 1976-06-30 JP JP51076614A patent/JPS5918917B2/ja not_active Expired
- 1976-06-30 BE BE168510A patent/BE843635A/xx not_active IP Right Cessation
- 1976-06-30 US US05/701,738 patent/US4070554A/en not_active Expired - Lifetime
- 1976-06-30 DE DE2629449A patent/DE2629449C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NO144186C (no) | 1981-07-08 |
NL7607117A (nl) | 1977-01-03 |
DK292176A (da) | 1976-12-31 |
DE2629449C2 (de) | 1985-08-29 |
IT1062497B (it) | 1984-10-10 |
BR7604238A (pt) | 1977-04-05 |
NO762258L (es) | 1977-01-03 |
JPS5918917B2 (ja) | 1984-05-01 |
NO144186B (no) | 1981-03-30 |
US4070554A (en) | 1978-01-24 |
FR2316815A1 (fr) | 1977-01-28 |
DE2629449A1 (de) | 1977-01-27 |
HU175908B (en) | 1980-11-28 |
GB1540900A (en) | 1979-02-21 |
FR2316815B1 (es) | 1982-12-03 |
FI761899A (es) | 1976-12-31 |
JPS528705A (en) | 1977-01-22 |
BE843635A (fr) | 1976-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FI117882B (fi) | Tehonkulutuksen ohjausmenetelmä ja -laitteisto tiedonvälitysjärjestelmän tilaajayksikköön | |
IT1202566B (it) | Telefone senza cordone controllato da calcolatore | |
EP0160472A3 (en) | Reprogrammable call forwarding device | |
ES449328A1 (es) | Un metodo y un aparato para controlar el estado de energia de terminales de datos a distancia en un sistema de comuni- cacion digital. | |
US4887294A (en) | Telephone automatic redial system | |
JPS5646354A (en) | Automatic switching on/off circuit for power supply | |
US5233645A (en) | Automatic power breaking circuits for communication equipments | |
JPS5748859A (en) | Network controller | |
JPS55137747A (en) | Connection control system in data switching metwork | |
KR100305860B1 (ko) | 셀룰라폰의통화시전력절감방법 | |
JPH0273729A (ja) | コードレス電話装置の給電制御方法 | |
JPS6242550B2 (es) | ||
USRE35582E (en) | Subscriber line interface circuit with power-down mode | |
KR20010036887A (ko) | 이동통신 단말기의 마이크 전원공급장치 및 방법 | |
JPH02288623A (ja) | 無線電話装置 | |
JPS57211861A (en) | Outgoing connection system for push-button dial telephone set | |
JP2852159B2 (ja) | 発呼検出制御方式 | |
JPS631492Y2 (es) | ||
JPS6019866B2 (ja) | 自動電源投入切断回路 | |
JPH0475715B2 (es) | ||
JP2582370B2 (ja) | 自動位置登録方式 | |
JPS61114639A (ja) | 電話局線の選択切替装置 | |
JPH01183293A (ja) | ボタン電話装置 | |
JPS59157374U (ja) | ボタン電話装置 | |
JPS5830245A (ja) | 無線電話装置 |