ATE271741T1 - Integrierte weckschaltung für kurze fernsprechleitungen - Google Patents
Integrierte weckschaltung für kurze fernsprechleitungenInfo
- Publication number
- ATE271741T1 ATE271741T1 AT96301826T AT96301826T ATE271741T1 AT E271741 T1 ATE271741 T1 AT E271741T1 AT 96301826 T AT96301826 T AT 96301826T AT 96301826 T AT96301826 T AT 96301826T AT E271741 T1 ATE271741 T1 AT E271741T1
- Authority
- AT
- Austria
- Prior art keywords
- subscriber line
- circuit
- interface circuit
- impedance
- coupled
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
-
- 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
-
- 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
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/406,187 US5694465A (en) | 1995-03-16 | 1995-03-16 | Integrated ringer for short telephone lines |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE271741T1 true ATE271741T1 (de) | 2004-08-15 |
Family
ID=23606901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT96301826T ATE271741T1 (de) | 1995-03-16 | 1996-03-18 | Integrierte weckschaltung für kurze fernsprechleitungen |
Country Status (6)
Country | Link |
---|---|
US (3) | US5694465A (de) |
EP (1) | EP0738066B1 (de) |
JP (1) | JPH0923455A (de) |
KR (1) | KR100423942B1 (de) |
AT (1) | ATE271741T1 (de) |
DE (1) | DE69632934T2 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
US5848149A (en) * | 1995-05-26 | 1998-12-08 | Lucent Technologies Inc. | Subscriber line interface and power circuit |
US5809109A (en) * | 1995-06-01 | 1998-09-15 | Advanced Micro Devices, Inc. | Integrated ring sensor with fault detection |
US6167135A (en) * | 1995-12-01 | 2000-12-26 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for generating a ringing signal |
US5768367A (en) * | 1996-10-17 | 1998-06-16 | Northern Telecom Limited | Method and apparatus for removing FSK in-band signaling |
CA2188844A1 (en) * | 1996-10-25 | 1998-04-25 | David Arnold Pepper | Simulation of modifications in a telephone subscriber line |
JPH10164223A (ja) * | 1996-11-26 | 1998-06-19 | Nec Corp | リングトリップ回路 |
US5796815A (en) * | 1996-12-05 | 1998-08-18 | Advanced Micro Devices, Inc. | Communications device with improved ring signal detection |
US5872842A (en) * | 1996-12-27 | 1999-02-16 | Scientific-Atlanta, Inc. | Unbalanced ringing using a balanced ringing generator of a subscriber line interface circuit |
US6442213B1 (en) | 1997-04-22 | 2002-08-27 | Silicon Laboratories Inc. | Digital isolation system with hybrid circuit in ADC calibration loop |
US6456712B1 (en) * | 1997-04-22 | 2002-09-24 | Silicon Laboratories Inc. | Separation of ring detection functions across isolation barrier for minimum power |
US6289070B1 (en) | 1997-04-22 | 2001-09-11 | Silicon Laboratories, Inc. | Digital isolation system with ADC offset calibration including coarse offset |
US6137827A (en) | 1997-04-22 | 2000-10-24 | Silicon Laboratories, Inc. | Isolation system with digital communication across a capacitive barrier |
US6430229B1 (en) | 1997-04-22 | 2002-08-06 | Silicon Laboratories Inc. | Capacitive isolation system with digital communication and power transfer |
US6385235B1 (en) | 1997-04-22 | 2002-05-07 | Silicon Laboratories, Inc. | Direct digital access arrangement circuitry and method for connecting to phone lines |
US5870046A (en) | 1997-04-22 | 1999-02-09 | Silicon Laboratories Inc. | Analog isolation system with digital communication across a capacitive barrier |
US6587560B1 (en) * | 1997-04-22 | 2003-07-01 | Silicon Laboratories Inc. | Low voltage circuits powered by the phone line |
US6498825B1 (en) | 1997-04-22 | 2002-12-24 | Silicon Laboratories Inc. | Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with programmable current limiting |
US6408034B1 (en) | 1997-04-22 | 2002-06-18 | Silicon Laboratories, Inc. | Framed delta sigma data with unlikely delta sigma data patterns |
US6389134B1 (en) | 1997-04-22 | 2002-05-14 | Silicon Laboratories, Inc. | Call progress monitor circuitry and method for a communication system |
US6167134A (en) | 1997-04-22 | 2000-12-26 | Silicon Laboratories, Inc. | External resistor and method to minimize power dissipation in DC holding circuitry for a communication system |
US6516024B1 (en) | 1997-04-22 | 2003-02-04 | Silicon Laboratories Inc. | Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with low distortion and current limiting |
US6359983B1 (en) | 1997-04-22 | 2002-03-19 | Silicon Laboratories, Inc. | Digital isolation system with data scrambling |
US6504864B1 (en) | 1997-04-22 | 2003-01-07 | Silicon Laboratories Inc. | Digital access arrangement circuitry and method for connecting to phone lines having a second order DC holding circuit |
US6144326A (en) | 1997-04-22 | 2000-11-07 | Silicon Laboratories, Inc. | Digital isolation system with ADC offset calibration |
US6480602B1 (en) | 1997-04-22 | 2002-11-12 | Silicon Laboratories, Inc. | Ring-detect interface circuitry and method for a communication system |
US6442271B1 (en) | 1997-04-22 | 2002-08-27 | Silicon Laboratories, Inc. | Digital isolation system with low power mode |
SE509626C2 (sv) * | 1997-06-06 | 1999-02-15 | Ericsson Telefon Ab L M | Förfarande för att reglera signalutrymmet i en abonnentlinjekrets jämte abonnentlinjekrets |
US6167131A (en) * | 1998-02-20 | 2000-12-26 | Intersil Corporation | Ring generator |
US6356624B1 (en) * | 1998-08-04 | 2002-03-12 | Leserity, Inc. | Method and apparatus for detecting and measuring foreign voltages |
US6115469A (en) * | 1998-08-25 | 2000-09-05 | Unitrode Corporation | Telephone line ring signal and DC power generator |
CA2289383C (en) * | 1999-11-12 | 2009-02-03 | Martin Bijman | A system and method for detecting an off-hook condition |
US7042996B1 (en) * | 2001-05-02 | 2006-05-09 | Cisco Technology, Inc. | Method and apparatus for cas-based ring limiting of FXS ports |
US7218713B1 (en) | 2003-04-15 | 2007-05-15 | Silicon Laboratories Inc. | Telephone line interface for DAA circuitry |
US7257222B2 (en) * | 2004-04-30 | 2007-08-14 | Infineon Technologies Ag | Ring voltage generation circuit and method for generating a ring voltage |
US7477095B2 (en) * | 2006-06-15 | 2009-01-13 | Silicon Laboratories Inc. | Current mirror architectures |
US7970125B2 (en) * | 2006-06-15 | 2011-06-28 | Silicon Laboratories Inc. | Output stacking architecture for an amplifier |
US20070291929A1 (en) * | 2006-06-15 | 2007-12-20 | Apfel Russell J | Methods and apparatus for performing subscriber line interface functions |
US8019077B2 (en) * | 2006-12-27 | 2011-09-13 | Silicon Laboratories Inc. | Methods and apparatus for low voltage control of a subscriber line interface circuit |
US8249247B2 (en) * | 2006-12-27 | 2012-08-21 | Silicon Laboratories Inc. | Tracking voltage regulator for a subscriber line interface circuit |
FR2979782B1 (fr) * | 2011-09-01 | 2014-07-04 | Sagemcom Broadband Sas | Procede d'optimisation de la consommation electrique d'une passerelle residentielle |
US8503948B1 (en) * | 2012-07-25 | 2013-08-06 | Julia Chow | Mobile phone interconnect to telephone |
US9020445B2 (en) * | 2012-07-25 | 2015-04-28 | Victronix Capital Solution | Mobile phone interconnect to telephone |
CN108566495B (zh) * | 2018-05-31 | 2023-10-10 | 杭州小犇科技有限公司 | 一种支持全呼功能的用户电路 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3919488A (en) * | 1974-06-21 | 1975-11-11 | Itt | Ring control circuit |
US4239935A (en) * | 1979-04-27 | 1980-12-16 | Bell Telephone Laboratories, Incorporated | Ringing generator |
WO1981003728A1 (en) * | 1980-06-18 | 1981-12-24 | Advanced Micro Devices Inc | Subscriber line audio processing circuit apparatus |
US4456991A (en) * | 1981-09-18 | 1984-06-26 | International Telephone And Telegraph Corporation | Telephone line circuit and system |
US4396805A (en) * | 1981-09-21 | 1983-08-02 | Siemens Corporation | Ring trip detector for a subscriber line interface circuit |
US4455456A (en) * | 1982-04-26 | 1984-06-19 | International Telephone And Telegraph Corporation | Digital supervisory circuit for a telephone system |
FR2531296B1 (fr) * | 1982-07-30 | 1988-04-15 | Cit Alcatel | Procede et dispositif de detection de boucle en phase sonnerie |
US4598173A (en) * | 1984-10-15 | 1986-07-01 | Itt Corporation | Interface circuit for a subscriber line circuit |
US4731827A (en) * | 1984-10-29 | 1988-03-15 | David Systems, Inc. | Interswitch line circuit |
US4712233A (en) * | 1985-04-22 | 1987-12-08 | Fairchild Camera & Instrument Corp. | Monolithic telephone subscriber line interface circuit |
EP0201635B1 (de) * | 1985-05-17 | 1991-12-18 | BELL TELEPHONE MANUFACTURING COMPANY Naamloze Vennootschap | Fernmeldeleitungsschaltung |
IT1213306B (it) * | 1986-07-29 | 1989-12-20 | Sgs Microelettronica Spa | Circuito telefonico, integrabile monoliticamente, per l'invio disegnali di suoneria in una linea telefonica d'utente e per il riconoscimento dello sgangio in fase di suoneria. |
AU593951B2 (en) * | 1986-10-20 | 1990-02-22 | Fujitsu Limited | An integrated ringing circuit and a ring trip circuit for the same |
US4742536A (en) * | 1986-10-24 | 1988-05-03 | Energy Innovations, Inc. | Telephone monitor circuit and method |
IT1197977B (it) * | 1986-11-13 | 1988-12-21 | Sgs Microelettronica Spa | Circuito telefonico, integrabile monoliticamente, per l'invio di segnali di suoneria in una linea telefonica d'utente ed il riconoscimento dello sgancio in fase di suoneria |
US4961219A (en) * | 1989-12-04 | 1990-10-02 | Ag Communication Systems Corporation | Circuit for synthesizing an impedance across the tip and ring leads of a telephone line circuit |
EP0450884B1 (de) * | 1990-04-04 | 1996-06-12 | Seiscor Technologies, Inc. | Schnittstellenschaltung für Teilnehmerleitung, die regulierten Strom liefert |
US5333192A (en) * | 1990-06-26 | 1994-07-26 | Northern Telecom Limited | Line interface circuit |
US5228081A (en) * | 1990-10-18 | 1993-07-13 | Ag Communication Systems Corporation | Ringing signal control circuit for an enhanced subscriber line interface |
US5402482A (en) * | 1991-07-08 | 1995-03-28 | Fujitsu Limited | Ring trip deciding circuit |
JPH0522767A (ja) * | 1991-07-09 | 1993-01-29 | Fujitsu Ltd | アナログ加入者線監視方式 |
JPH05268336A (ja) * | 1992-03-19 | 1993-10-15 | Fujitsu Ltd | リングトリップ回路 |
US5406623A (en) * | 1993-04-23 | 1995-04-11 | At&T Corp. | Method and apparatus for ringing telephone stations |
SE9400186D0 (sv) * | 1994-01-21 | 1994-01-21 | Ericsson Telefon Ab L M | Förfarande i ett telekommunikationssystem |
GB2287155B (en) * | 1994-02-23 | 1998-08-12 | Motorola Inc | Telecommunications device |
US5694465A (en) * | 1995-03-16 | 1997-12-02 | Advanced Micro Devices, Inc. | Integrated ringer for short telephone lines |
US5881129A (en) * | 1996-05-10 | 1999-03-09 | Chen; Robert Kuo-Wei | Self-monitoring line interface circuit |
US5854839A (en) * | 1996-05-10 | 1998-12-29 | Lucent Technologies Inc. | Dual voltage, self-monitoring line circuit |
US5872842A (en) * | 1996-12-27 | 1999-02-16 | Scientific-Atlanta, Inc. | Unbalanced ringing using a balanced ringing generator of a subscriber line interface circuit |
-
1995
- 1995-03-16 US US08/406,187 patent/US5694465A/en not_active Expired - Lifetime
-
1996
- 1996-03-15 JP JP8059416A patent/JPH0923455A/ja active Pending
- 1996-03-16 KR KR1019960007126A patent/KR100423942B1/ko not_active IP Right Cessation
- 1996-03-18 DE DE69632934T patent/DE69632934T2/de not_active Expired - Lifetime
- 1996-03-18 AT AT96301826T patent/ATE271741T1/de not_active IP Right Cessation
- 1996-03-18 EP EP96301826A patent/EP0738066B1/de not_active Expired - Lifetime
-
1997
- 1997-12-02 US US08/982,541 patent/US6026159A/en not_active Expired - Lifetime
-
1999
- 1999-08-02 US US09/365,538 patent/US6351528B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5694465A (en) | 1997-12-02 |
US6351528B1 (en) | 2002-02-26 |
KR960036496A (ko) | 1996-10-28 |
US6026159A (en) | 2000-02-15 |
EP0738066B1 (de) | 2004-07-21 |
JPH0923455A (ja) | 1997-01-21 |
DE69632934D1 (de) | 2004-08-26 |
DE69632934T2 (de) | 2004-12-23 |
EP0738066A3 (de) | 2002-05-08 |
EP0738066A2 (de) | 1996-10-16 |
KR100423942B1 (ko) | 2004-06-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |