Arrangements for interrupting the ringing current

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CPC
H04M19/026

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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M19/00Current supply arrangements for telephone systems

Current Industry

H04M19/026Arrangements for interrupting the ringing current

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for providing ringing timeout disconnect super...
- Patent number 8,126,009
- Issue date Feb 28, 2012
- Cisco Technology, Inc.
- Wing-Kuen Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing ringing timeout disconnect super...
- Patent number 7,339,924
- Issue date Mar 4, 2008
- Cisco Technology, Inc.
- Wing-Kuen Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Programmable device and methods for disabling a ring signal in resp...
- Patent number 7,197,138
- Issue date Mar 27, 2007
- Integrated Device Technology, Inc.
- Jian Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring relay control unit for foreign exchange station
- Patent number 7,031,464
- Issue date Apr 18, 2006
- LG Electronics Inc.
- Jong Heon Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ground key detection circuit and method for interference-resistant...
- Patent number 6,944,286
- Issue date Sep 13, 2005
- Infineon Technologies AG
- Gerhard Nossing
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for automatically disconnecting a call in a mobil...
- Patent number 6,463,297
- Issue date Oct 8, 2002
- Samsung Electronics, Co., Ltd.
- Yong-Jin Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
PC server telecommunications power system
- Patent number 6,434,236
- Issue date Aug 13, 2002
- Mitel Knowledge Corporation
- Peter Zorzella
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Remote supply circuitry
- Patent number 6,191,684
- Issue date Feb 20, 2001
- Ericsson Austria AG
- Günther Stadlbauer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and device for detecting a ringtrip
- Patent number 5,978,471
- Issue date Nov 2, 1999
- Telefonaktiebolaget LM Ericsson
- Bo Bokinge
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring-trip circuit
- Patent number 5,943,418
- Issue date Aug 24, 1999
- Harris Corporation
- Herbert M. Walker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and circuit for failsafe switch-hook detection during fault...
- Patent number 5,812,658
- Issue date Sep 22, 1998
- Harris Corp.
- Gerald Michael Cotreau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for off-hook detection during ringing and the use of a subsc...
- Patent number 5,734,712
- Issue date Mar 31, 1998
- Telefonaktiebolaget LM Ericsson
- Torbjorn Ivar Randahl
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip circuit having a simple trip detecting circuit of a high...
- Patent number 5,712,910
- Issue date Jan 27, 1998
- NEC Corporation
- Masashi Saito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ringtrip judging circuit
- Patent number 5,684,874
- Issue date Nov 4, 1997
- Fujitsu Limited
- Tetsuo Yagyu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Current mode ring trip detector
- Patent number 5,671,272
- Issue date Sep 23, 1997
- Harris Corporation
- Gerald Michael Cotreau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Line feed circuit with logic level controlled ringing
- Patent number 5,659,608
- Issue date Aug 19, 1997
- Lucent Technologies Inc.
- Richard Frank Stiefel
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switch controller and method
- Patent number 5,636,274
- Issue date Jun 3, 1997
- Harris Corp.
- Douglas L. Youngblood
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Double duty capacitor circuit and method
- Patent number 5,528,682
- Issue date Jun 18, 1996
- Harris Corporation
- Gerald M. Cotreay
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated ringer relay circuit and method
- Patent number 5,517,565
- Issue date May 14, 1996
- Harris Corporation
- Gerald M. Cotreau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Impedance setting circuit for a SLIC
- Patent number 5,515,434
- Issue date May 7, 1996
- Gerald M. Cotreau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ground key detector for a SLIC
- Patent number 5,515,417
- Issue date May 7, 1996
- Harris Corporation
- Gerald M. Cotreau
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone circuit assembly
- Patent number 5,402,484
- Issue date Mar 28, 1995
- Marcioni; Maria Laura
- Marco Siligoni
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip deciding circuit
- Patent number 5,402,482
- Issue date Mar 28, 1995
- Fujitsu Limited
- Kazuyuki Minohara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifier biasing circuit
- Patent number 5,341,108
- Issue date Aug 23, 1994
- Alcatel N.V.
- Eddie L. M. Willocx
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
5341416
- Patent number 5,341,416
- Issue date Aug 23, 1994
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip detection circuit
- Patent number 5,335,271
- Issue date Aug 2, 1994
- Fujitsu Limited
- Kenji Takato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip circuit
- Patent number 5,293,420
- Issue date Mar 8, 1994
- Fujitsu Limited
- Takashi Nagato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ring trip circuit for subscriber telephone
- Patent number 4,995,111
- Issue date Feb 19, 1991
- Fujitsu Limited
- Toshiro Tojo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for separating dc current and ac current components of a...
- Patent number 4,916,734
- Issue date Apr 10, 1990
- Siemens Aktiengesellschaft
- Harald Stader
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for separating dc current and ac current components of a...
- Patent number 4,896,351
- Issue date Jan 23, 1990
- Siemens AG
- Harald Stader
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
RINGING SUPPRESSION CIRCUIT
- Publication number 20240187533
- Publication date Jun 6, 2024
- Amazing Microelectronic Corp.
- TING-YI CHOU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SYSTEM AND METHOD OF MULTIPLE VOICE CALL HANDLING
- Publication number 20160227025
- Publication date Aug 4, 2016
- Christian Soby
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPER...
- Publication number 20150222760
- Publication date Aug 6, 2015
- Cisco Technology, Inc.
- Wing-Kuen Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPER...
- Publication number 20130058325
- Publication date Mar 7, 2013
- Cisco Technology, Inc.
- Wing-Kuen Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for providing ringing timeout disconnect super...
- Publication number 20080175233
- Publication date Jul 24, 2008
- Wing-Kuen Chung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Programmable device and methods for disabling a ring signal in resp...
- Publication number 20020154763
- Publication date Oct 24, 2002
- Jian Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Ring relay control unit for foreign exchange station
- Publication number 20020044643
- Publication date Apr 18, 2002
- LG Electronics Inc.
- Jong Heon Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Arrangements for interrupting the ringing current

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method and apparatus for providing ringing timeout disconnect super...

Method and apparatus for providing ringing timeout disconnect super...

Programmable device and methods for disabling a ring signal in resp...

Ring relay control unit for foreign exchange station

Ground key detection circuit and method for interference-resistant...

Device and method for automatically disconnecting a call in a mobil...

PC server telecommunications power system

Remote supply circuitry

Method and device for detecting a ringtrip

Ring-trip circuit

Method and circuit for failsafe switch-hook detection during fault...

Method for off-hook detection during ringing and the use of a subsc...

Ring trip circuit having a simple trip detecting circuit of a high...

Ringtrip judging circuit

Current mode ring trip detector

Line feed circuit with logic level controlled ringing

Switch controller and method

Double duty capacitor circuit and method

Integrated ringer relay circuit and method

Impedance setting circuit for a SLIC

Ground key detector for a SLIC

Telephone circuit assembly

Ring trip deciding circuit

Amplifier biasing circuit

5341416

Ring trip detection circuit

Ring trip circuit

Ring trip circuit for subscriber telephone

Apparatus for separating dc current and ac current components of a...

Apparatus for separating dc current and ac current components of a...

Patents Applicationslast 30 patents

RINGING SUPPRESSION CIRCUIT

SYSTEM AND METHOD OF MULTIPLE VOICE CALL HANDLING

METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPER...

METHOD AND APPARATUS FOR PROVIDING RINGING TIMEOUT DISCONNECT SUPER...

Method and apparatus for providing ringing timeout disconnect super...

Programmable device and methods for disabling a ring signal in resp...

Ring relay control unit for foreign exchange station