MX150408A - Mejoras a generador de senales de llamada programable - Google Patents
Mejoras a generador de senales de llamada programableInfo
- Publication number
- MX150408A MX150408A MX186567A MX18656781A MX150408A MX 150408 A MX150408 A MX 150408A MX 186567 A MX186567 A MX 186567A MX 18656781 A MX18656781 A MX 18656781A MX 150408 A MX150408 A MX 150408A
- Authority
- MX
- Mexico
- Prior art keywords
- call signals
- signals generator
- energizing
- programmable call
- ringing
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/026—Arrangements for interrupting the ringing current
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/023—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone by reversing the polarity of the current at the exchange
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interface Circuits In Exchanges (AREA)
- Electrophonic Musical Instruments (AREA)
- Control Of Electric Motors In General (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/135,755 US4349703A (en) | 1980-03-31 | 1980-03-31 | Programmable ring signal generator |
Publications (1)
Publication Number | Publication Date |
---|---|
MX150408A true MX150408A (es) | 1984-04-30 |
Family
ID=22469510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX186567A MX150408A (es) | 1980-03-31 | 1981-03-26 | Mejoras a generador de senales de llamada programable |
Country Status (11)
Country | Link |
---|---|
US (1) | US4349703A (es) |
EP (1) | EP0037111B1 (es) |
JP (1) | JPS56152362A (es) |
AT (1) | ATE7833T1 (es) |
AU (1) | AU541406B2 (es) |
BE (1) | BE888194R (es) |
BR (1) | BR8101766A (es) |
CA (1) | CA1165915A (es) |
DE (1) | DE3163956D1 (es) |
ES (1) | ES500921A0 (es) |
MX (1) | MX150408A (es) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4431868A (en) * | 1981-07-09 | 1984-02-14 | International Telephone And Telegraph Corporation | Solid state telephone line interface circuit with ringing capability |
US4423292A (en) * | 1981-09-30 | 1983-12-27 | Bell Telephone Laboratories, Incorporated | Detector circuit for communication lines |
US4455456A (en) * | 1982-04-26 | 1984-06-19 | International Telephone And Telegraph Corporation | Digital supervisory circuit for a telephone system |
GB2128449B (en) * | 1982-10-08 | 1985-12-11 | Standard Telephones Cables Ltd | Tone generation circuit |
US4605824A (en) * | 1983-03-30 | 1986-08-12 | Siemens Aktiengesellschaft | Circuit arrangement for telecommunication exchange systems, particularly telephone exchange systems with switch facilities for emitting signals |
US4500844A (en) * | 1983-05-20 | 1985-02-19 | At&T Bell Laboratories | Ringing signal generator employing delta-modulation power amplification techniques |
CA1197641A (en) * | 1983-08-26 | 1985-12-03 | David E. Dodds | Telephone line interface circuit |
US4674119A (en) * | 1984-04-10 | 1987-06-16 | Itt Corporation | Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry |
US4748659A (en) * | 1984-05-30 | 1988-05-31 | Fujitsu Limited | Calling signal transmission apparatus |
US4631361A (en) * | 1984-06-28 | 1986-12-23 | Itt Corporation | Programmable ring generator |
US4575585A (en) * | 1984-07-16 | 1986-03-11 | Motorola Inc. | Synchronous programmable signal generator and method |
US4598173A (en) * | 1984-10-15 | 1986-07-01 | Itt Corporation | Interface circuit for a subscriber line circuit |
JPS61225929A (ja) * | 1985-03-30 | 1986-10-07 | Fujitsu Ltd | デイジタルト−ンの生成方法 |
US4656659A (en) * | 1985-07-18 | 1987-04-07 | Itt Corporation | Programmable ring signal generator |
US4674115A (en) * | 1985-09-20 | 1987-06-16 | Jabil Circuit Company | Programmable telephone switcher |
CA1234939A (en) * | 1985-10-28 | 1988-04-05 | Brian J. Pollard | Power amplifier |
US4815030A (en) * | 1986-09-03 | 1989-03-21 | Wang Laboratories, Inc. | Multitask subscription data retrieval system |
US4962527A (en) * | 1989-05-22 | 1990-10-09 | Siemens Transmission Systems, Inc. | Series ringing signal generator |
US4908857A (en) * | 1989-05-22 | 1990-03-13 | Siemens Transmission Systems, Inc. | Isolated drive circuit |
US5001748A (en) * | 1989-08-21 | 1991-03-19 | Siemens Transmission Systems, Inc. | Ringing signal generator |
US5140630A (en) * | 1991-05-01 | 1992-08-18 | Light Logic, Ltd. | Added main line apparatus |
JP3056551B2 (ja) * | 1991-09-02 | 2000-06-26 | 富士通株式会社 | 加入者系伝送装置のアラーティングケーダンス制御方式 |
US5307407A (en) * | 1991-12-19 | 1994-04-26 | Nec America, Inc. | 20 Hz ring generator using high frequency PWM control |
DE4218845C2 (de) * | 1992-06-09 | 1994-10-27 | Bosch Telecom | Schaltungsanordnung für einen Rufspannungsgenerator |
DE69628479T2 (de) * | 1995-02-01 | 2004-05-06 | Advanced Micro Devices, Inc., Sunnyvale | Rufsignalerzeugung in einer Teilnehmerschaltung (SLIC) |
US5544241A (en) * | 1995-06-27 | 1996-08-06 | Andrew S. Dibner | Telephone ring detector |
KR970024789A (ko) * | 1995-10-16 | 1997-05-30 | 김광호 | 전화기에서 벨소리 다양화 방법 |
US5838788A (en) * | 1996-10-17 | 1998-11-17 | Northern Telecom Limited | Telephone ringing signal generator |
US6169800B1 (en) * | 1997-07-02 | 2001-01-02 | Motorola, Inc. | Integrated circuit amplifier and method of adaptive offset |
WO1999053627A1 (en) | 1998-04-10 | 1999-10-21 | Chrimar Systems, Inc. Doing Business As Cms Technologies | System for communicating with electronic equipment on a network |
US6956943B1 (en) * | 2000-11-30 | 2005-10-18 | Sprint Communications Company L.P. | Method and apparatus for minimizing the telephony ring voltage power supply requirements of an integrated services hub |
US7365661B2 (en) * | 2002-11-14 | 2008-04-29 | Fyre Storm, Inc. | Power converter circuitry and method |
US7092265B2 (en) * | 2002-11-14 | 2006-08-15 | Fyre Storm, Inc. | Switching power converter controller |
US6906502B2 (en) * | 2002-11-14 | 2005-06-14 | Fyre Storm, Inc. | Method for regulating an output voltage of a power coverter |
US6912139B2 (en) * | 2002-11-14 | 2005-06-28 | Fyre Storm, Inc. | Multi-channel control methods for switched power converters |
US6864644B2 (en) * | 2002-11-14 | 2005-03-08 | Fyre Storm, Inc. | Method of tuning a circuit for energizing a cold cathode fluorescent lamp |
US6801146B2 (en) * | 2002-11-14 | 2004-10-05 | Fyre Storm, Inc. | Sample and hold circuit including a multiplexer |
US6946753B2 (en) * | 2002-11-14 | 2005-09-20 | Fyre Storm, Inc. | Switching power converter controller with watchdog timer |
US7376182B2 (en) * | 2004-08-23 | 2008-05-20 | Microchip Technology Incorporated | Digital processor with pulse width modulation module having dynamically adjustable phase offset capability, high speed operation and simultaneous update of multiple pulse width modulation duty cycle registers |
US7221130B2 (en) * | 2005-01-05 | 2007-05-22 | Fyrestorm, Inc. | Switching power converter employing pulse frequency modulation control |
US7847433B2 (en) * | 2007-11-27 | 2010-12-07 | Rain Bird Corporation | Universal irrigation controller power supply |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3087021A (en) * | 1952-07-28 | 1963-04-23 | Gen Dynamics Corp | Telephone system |
US3443033A (en) * | 1963-10-31 | 1969-05-06 | Bell Telephone Labor Inc | Ringing arrangement for time division telephone systems |
US3978292A (en) * | 1974-11-07 | 1976-08-31 | Bell Telephone Laboratories, Incorporated | Ringing control circuitry with shared ringing loop current detector |
JPS52130219A (en) * | 1976-04-24 | 1977-11-01 | Fujitsu Ltd | Transmission control system for call signal |
US4075430A (en) * | 1976-05-14 | 1978-02-21 | International Telephone And Telegraph Corporation | Line signalling over common highway for telecommunications system |
DE2720081C2 (de) * | 1976-05-14 | 1983-04-21 | International Standard Electric Corp., 10022 New York, N.Y. | Schaltungsanordnung für die Signalisierung in Fernmelde-, insbesondere Fernsprechanlagen |
US4071709A (en) * | 1976-12-16 | 1978-01-31 | Gte Automatic Electric Laboratories Incorporated | Line conditioning and transfer circuit |
IT1079588B (it) * | 1977-02-14 | 1985-05-13 | Sits Soc It Telecom Siemens | Generatore di chiamata statico per sistemi di telecomunicazioni |
GB1583634A (en) * | 1977-03-02 | 1981-01-28 | Int Standard Electric Corp | Subscriber line/trunk circuit |
FR2423096A1 (fr) * | 1978-01-17 | 1979-11-09 | Materiel Telephonique | Agencement de sonnerie pour joncteur de central telephonique a unite de commande centralisee |
US4192007A (en) * | 1978-05-30 | 1980-03-04 | Lorain Products Corporation | Programmable ringing generator |
US4270028A (en) * | 1979-09-24 | 1981-05-26 | Gte Automatic Electric Laboratories Incorporated | Digitally activated ringing circuit for generation of AC voltages |
-
1980
- 1980-03-31 US US06/135,755 patent/US4349703A/en not_active Expired - Lifetime
-
1981
- 1981-03-25 BR BR8101766A patent/BR8101766A/pt unknown
- 1981-03-26 MX MX186567A patent/MX150408A/es unknown
- 1981-03-26 AU AU68766/81A patent/AU541406B2/en not_active Ceased
- 1981-03-28 AT AT81102362T patent/ATE7833T1/de not_active IP Right Cessation
- 1981-03-28 EP EP81102362A patent/EP0037111B1/de not_active Expired
- 1981-03-28 DE DE8181102362T patent/DE3163956D1/de not_active Expired
- 1981-03-30 CA CA000374121A patent/CA1165915A/en not_active Expired
- 1981-03-31 JP JP4658381A patent/JPS56152362A/ja active Pending
- 1981-03-31 ES ES500921A patent/ES500921A0/es active Granted
- 1981-03-31 BE BE2/59089A patent/BE888194R/nl not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3163956D1 (en) | 1984-07-12 |
BR8101766A (pt) | 1981-09-29 |
AU6876681A (en) | 1981-10-08 |
ES8206124A1 (es) | 1982-08-16 |
JPS56152362A (en) | 1981-11-25 |
US4349703A (en) | 1982-09-14 |
CA1165915A (en) | 1984-04-17 |
ES500921A0 (es) | 1982-08-16 |
EP0037111A1 (de) | 1981-10-07 |
BE888194R (nl) | 1981-09-30 |
AU541406B2 (en) | 1985-01-10 |
EP0037111B1 (de) | 1984-06-06 |
ATE7833T1 (de) | 1984-06-15 |
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