Architecture for minimum loop current during ringing and caller

Details Architecture for minimum loop current during ringing and caller Architecture for minimum loop current during ringing and caller

1998-03-04

2000-08-15

Kuntz, Curtis A.

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379399, 379412, 379413, H04M 100, H04M 900, H04M 908, H04M 156, H04M 1506

Patent

active

061047945

ABSTRACT:
A communication system is provided which draws virtually no loop current during a ringing burst and only draws on-hook loop current during the caller ID field. More particularly, ringer burst circuitry may be powered from the user powered circuitry by the transmission of power across the isolation barrier rather than being powered from the phone line. Thus, loop current need not be drawn from the TIP/RING lines during ringer bursts. The isolation barrier may be a capacitive isolation barrier which allows bidirectional communication and extraction of power from signals transmitted across the barrier.

REFERENCES:
patent: 4053720 (1977-10-01), Wycheck
patent: 4192978 (1980-03-01), Vincent
patent: 4216426 (1980-08-01), Flora
patent: 4271526 (1981-06-01), Flora
patent: 4292595 (1981-09-01), Smith
patent: 4417099 (1983-11-01), Pierce
patent: 4529845 (1985-07-01), Boeckmann
patent: 4540854 (1985-09-01), Beirne
patent: 4567331 (1986-01-01), Martin
patent: 4644526 (1987-02-01), Wu
patent: 4741031 (1988-04-01), Grandstaff
patent: 4757528 (1988-07-01), Falater et al.
patent: 4835486 (1989-05-01), Somerville
patent: 4843339 (1989-06-01), Burt et al.
patent: 4864605 (1989-09-01), Ramsay et al.
patent: 4901275 (1990-02-01), Hardie et al.
patent: 4993063 (1991-02-01), Kiko
patent: 4995111 (1991-02-01), Tojo et al.
patent: 5068659 (1991-11-01), Sakaguchi
patent: 5097503 (1992-03-01), Cotty
patent: 5136630 (1992-08-01), Breneman et al.
patent: 5204896 (1993-04-01), Oliver
patent: 5235634 (1993-08-01), Oliver
patent: 5245654 (1993-09-01), Wilkison et al.
patent: 5287107 (1994-02-01), Gampell et al.
patent: 5329281 (1994-07-01), Baumgartner et al.
patent: 5329585 (1994-07-01), Susak et al.
patent: 5337338 (1994-08-01), Sutton et al.
patent: 5369666 (1994-11-01), Folwell et al.
patent: 5384808 (1995-01-01), Van Brunt et al.
patent: 5410594 (1995-04-01), Maruyama
patent: 5428682 (1995-06-01), Apfel
patent: 5500894 (1996-03-01), Hershbarger
patent: 5500895 (1996-03-01), Yurgelites
patent: 5506900 (1996-04-01), Fritz
patent: 5533053 (1996-07-01), Hershbarger
patent: 5553138 (1996-09-01), Heald et al.
patent: 5574749 (1996-11-01), Nelson et al.
patent: 5602912 (1997-02-01), Hershbarger
patent: 5654984 (1997-08-01), Hershbarger et al.
patent: 5655010 (1997-08-01), Bingel
patent: 5692041 (1997-11-01), Torazzina
patent: 5717752 (1998-02-01), Whitney
patent: 5790656 (1998-08-01), Rahamim et al.
patent: 5815567 (1998-09-01), Davis et al.
patent: 5872842 (1999-02-01), Daly et al.
patent: 5946393 (1999-08-01), Holcombe
Information Sheet--Siemens, DAA2000 Optical DAA Kit--Preliminary, pp. 1-21; Jun. 13, 1997.
Siemens Press Release, Siemens Pioneers Programmable Front End For Analog Modems Single Design For Worldwide Standards, Aug. 6, 1997.
Information Sheet--Siemens, ICs for Communications, ALIS Reference Board, SIPB 4595 Version 1.0, Technical Description 06.97, Q67220-H1014, Jun. 1997.
Information Sheet--Siemens, ICs for Communications, ALIS Evaluation Board, SIPB 45900 Version 1.1, Technical Description 06.97, Q67220-H1047, Jun. 1997.
Information Sheet--Siemens, ALIS--Development Tools Evaluation Board, pp. 1-3, Jul. 21, 1997.
Boser et al., The Design of Sigma-Delta Modulation Analog-to-Digital Converters, IEEE J. Solid-State Circuits, vol. SC-23, pp. 1298-1308, Dec. 1988.
Candy, A Use of Double Integration in Sigma Delta Modulations, IEEE Trans. Commun., vol. COM-33, pp. 249-258, Mar. 1985.
Naus, et al., A CMOS Stereo 16-bit D/A Converter for Digital Audio, IEEE J. Solid-State Circuits, vol. SC-22, pp. 390-395, Jun. 1987.
Silicon Systems, SSI 73D2950/2950T Low Power FAX/Data Modem Chip Set Advance Information, pp. 4-75-4-105, Dec. 1993.
Siemens, "Ics For Communications Analog Line Interface Solution ALIS", PSB 4595 Version 2.0 and PSB 4596 Version 2.1 Product Overview 08.97, 19 pages (1997).
Krypton, "K.sup.2 930G Functional and Electrical Descriptions", 10 pages (1997).
Lucent Technologies, LUCL8576 Dual Subscriber Line Interface Circuit, Advanced Data Sheet Issue 1.3, 16 pages, Jan. 8, 1997.

Affiliated with

Also associated with

Rating

Architecture for minimum loop current during ringing and caller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Architecture for minimum loop current during ringing and caller , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Architecture for minimum loop current during ringing and caller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2015681