Isolation system with digital communication across a...

Pulse or digital communications – Transceivers – Transmission interface between two stations or terminals

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C379S412000

Reexamination Certificate

active

10601411

ABSTRACT:
An isolation system is provided that is suitable for use in telephony, medical instrumentation, industrial process control and other applications. Preferred embodiments of the invention comprise a capacitive isolation barrier across which a digital signal is communicated. The system provides a means of communication across the isolation barrier that is highly immune to amplitude and phase noise interference. Clock recovery circuitry may be employed on one side of the isolation barrier to extract timing information from the digital signal communicated across the barrier, and to filter the effects of phase noise introduced at the barrier. Delta-sigma converters may be disposed on both sides of the isolation barrier to convert signals between analog and digital domains. An isolated power supply may also be provided on the isolated side of the barrier, whereby direct current is generated in response to the digital data received across the isolation barrier. Finally, a bidirectional isolation system is provided whereby bidirectional communication of digital signals is accomplished using a single pair of isolation capacitors. In preferred embodiments, the digital data communicated across the barrier consists of digital delta-sigma data signals multiplexed in time with other digital control, signaling and framing information.

REFERENCES:
patent: 3750024 (1973-07-01), Dunn et al.
patent: 3904833 (1975-09-01), Beene et al.
patent: 3981006 (1976-09-01), Takayama et al.
patent: 4053720 (1977-10-01), Wycheck
patent: 4054941 (1977-10-01), Shichman
patent: 4066843 (1978-01-01), Waks et al.
patent: 4118603 (1978-10-01), Kumhyr
patent: 4192978 (1980-03-01), Vincent
patent: 4224478 (1980-09-01), Fahey et al.
patent: 4292595 (1981-09-01), Smith
patent: 4349821 (1982-09-01), Vancsa
patent: 4384274 (1983-05-01), Mao
patent: 4393516 (1983-07-01), Itani
patent: 4415777 (1983-11-01), Agnew
patent: 4417099 (1983-11-01), Pierce
patent: 4465903 (1984-08-01), Barber
patent: 4475208 (1984-10-01), Ricketts
patent: 4528664 (1985-07-01), Cheng et al.
patent: 4529845 (1985-07-01), Boeckmann
patent: 4540854 (1985-09-01), Beirne
patent: 4541104 (1985-09-01), Hirosaki
patent: 4567331 (1986-01-01), Martin
patent: 4594577 (1986-06-01), Mao
patent: 4607170 (1986-08-01), Wickman
patent: 4644526 (1987-02-01), Wu
patent: 4656661 (1987-04-01), Carbrey
patent: 4686697 (1987-08-01), Shapiro et al.
patent: 4686699 (1987-08-01), Wilkie
patent: 4712233 (1987-12-01), Kuo
patent: 4720811 (1988-01-01), Yamaguchi et al.
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: 4901217 (1990-02-01), Wilson
patent: 4901275 (1990-02-01), Hardie et al.
patent: 4943807 (1990-07-01), Early et al.
patent: 4993063 (1991-02-01), Kiko
patent: 4995111 (1991-02-01), Tojo et al.
patent: 4996529 (1991-02-01), Connell
patent: 5021950 (1991-06-01), Nishikawa
patent: 5032819 (1991-07-01), Sakuragi
patent: 5051799 (1991-09-01), Paul et al.
patent: 5058129 (1991-10-01), Gupta et al.
patent: 5068659 (1991-11-01), Sakaguchi
patent: 5086454 (1992-02-01), Hirzel
patent: 5097503 (1992-03-01), Cotty
patent: 5136630 (1992-08-01), Breneman et al.
patent: 5204896 (1993-04-01), Oliver
patent: 5224154 (1993-06-01), Aldridge et al.
patent: 5235634 (1993-08-01), Oliver
patent: 5237511 (1993-08-01), Caird et al.
patent: 5245654 (1993-09-01), Wilkison et al.
patent: 5258721 (1993-11-01), Zanders
patent: 5260941 (1993-11-01), Wilder et al.
patent: 5262779 (1993-11-01), Sauer
patent: 5287107 (1994-02-01), Gampell et al.
patent: 5311588 (1994-05-01), Polcyn et al.
patent: 5323398 (1994-06-01), Wake et al.
patent: 5323451 (1994-06-01), Yatsunami
patent: 5329281 (1994-07-01), Baumgartner et al.
patent: 5329585 (1994-07-01), Susak et al.
patent: 5333196 (1994-07-01), Jakab
patent: 5337338 (1994-08-01), Sutton et al.
patent: 5343514 (1994-08-01), Snyder
patent: 5343516 (1994-08-01), Callele et al.
patent: 5355407 (1994-10-01), Lazik
patent: 5355468 (1994-10-01), Jeppesen, III et al.
patent: 5361067 (1994-11-01), Pinckley
patent: 5361296 (1994-11-01), Reyes et al.
patent: 5369666 (1994-11-01), Folwell et al.
patent: 5375051 (1994-12-01), Decker et al.
patent: 5377260 (1994-12-01), Long
patent: 5384808 (1995-01-01), Van Brunt et al.
patent: 5390249 (1995-02-01), Park
patent: 5396555 (1995-03-01), Shibata et al.
patent: 5406283 (1995-04-01), Leung
patent: 5410594 (1995-04-01), Maruyama
patent: 5426698 (1995-06-01), Reymond
patent: 5428682 (1995-06-01), Apfel
patent: 5438678 (1995-08-01), Smith
patent: 5442694 (1995-08-01), Chitrapu et al.
patent: 5459721 (1995-10-01), Yoshida
patent: 5467385 (1995-11-01), Reuben et al.
patent: 5473552 (1995-12-01), Chen et al.
patent: 5500894 (1996-03-01), Hershbarger
patent: 5500895 (1996-03-01), Yurgelites
patent: 5506900 (1996-04-01), Fritz
patent: 5506903 (1996-04-01), Yamashita
patent: 5509068 (1996-04-01), Bayless et al.
patent: 5511118 (1996-04-01), Gores et al.
patent: 5521967 (1996-05-01), Novas et al.
patent: 5533053 (1996-07-01), Hershbarger
patent: 5544241 (1996-08-01), Dibner et al.
patent: 5546448 (1996-08-01), Caswell et al.
patent: 5555100 (1996-09-01), Bloomfield et al.
patent: 5561712 (1996-10-01), Nishihara
patent: 5577104 (1996-11-01), Knuth et al.
patent: 5592529 (1997-01-01), Linsker
patent: 5598157 (1997-01-01), Kornblum et al.
patent: 5600551 (1997-02-01), Luscher, Jr.
patent: 5602912 (1997-02-01), Hershbarger
patent: 5644629 (1997-07-01), Chow
patent: 5654984 (1997-08-01), Hershbarger et al.
patent: 5655010 (1997-08-01), Bingel
patent: 5659608 (1997-08-01), Stiefel
patent: 5675640 (1997-10-01), Tappert et al.
patent: 5692041 (1997-11-01), Torazzina
patent: 5694465 (1997-12-01), Apfel
patent: 5705978 (1998-01-01), Frick et al.
patent: 5721774 (1998-02-01), Stiefel
patent: 5737411 (1998-04-01), Apfel et al.
patent: 5740241 (1998-04-01), Koenig et al.
patent: 5745060 (1998-04-01), McCartney et al.
patent: 5751803 (1998-05-01), Shpater
patent: 5790656 (1998-08-01), Rahamim et al.
patent: 5805687 (1998-09-01), Westergaard et al.
patent: 5818923 (1998-10-01), Consiglio et al.
patent: 5841840 (1998-11-01), Smith et al.
patent: 5848133 (1998-12-01), Kuwahara et al.
patent: 5859584 (1999-01-01), Counsell et al.
patent: 5870046 (1999-02-01), Scott et al.
patent: 5875235 (1999-02-01), Mohajeri
patent: 5881102 (1999-03-01), Samson
patent: 5881129 (1999-03-01), Chen et al.
patent: 5883907 (1999-03-01), Hoekstra
patent: 5901210 (1999-05-01), Schley-May
patent: 5907596 (1999-05-01), Karnowski
patent: 5914671 (1999-06-01), Tuttle
patent: 5917364 (1999-06-01), Nakamura
patent: 5926358 (1999-07-01), Dobkin et al.
patent: 5940459 (1999-08-01), Hsu et al.
patent: 5946393 (1999-08-01), Holcombe
patent: 5959372 (1999-09-01), Every
patent: 5974139 (1999-10-01), McNamara et al.
patent: 5982317 (1999-11-01), Madsen
patent: 5991335 (1999-11-01), Price
patent: 6005923 (1999-12-01), Lee
patent: 6061051 (2000-05-01), Chan et al.
patent: 6072778 (2000-06-01), Labedz et al.
patent: 6081586 (2000-06-01), Rahamim et al.
patent: 6107948 (2000-08-01), Scott et al.
patent: 6111939 (2000-08-01), Brabanec
patent: 6124756 (2000-09-01), Yaklin et al.
patent: 6128373 (2000-10-01), Mathe et al.
patent: 6137827 (2000-10-01), Scott et al.
patent: 6191717 (2001-02-01), Scott et al.
patent: 6205219 (2001-03-01), Hollenbach et al.
patent: 6225927 (2001-05-01), Scott et al.
patent: 6297755 (2001-10-01), Scott et al.
patent: 6389061 (2002-05-01), Scott et al.
patent: 6570513 (2003-05-01), Scott et al.
patent: 6611553 (2003-08-01), Scott et al.
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, “K2930G Functional and Ele

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Isolation system with digital communication across a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Isolation system with digital communication across a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isolation system with digital communication across a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3759000

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.