Telephone communication system and method over local area...

Details Telephone communication system and method over local area... Telephone communication system and method over local area...

2007-07-25

2009-02-10

Qureshi, Afsar M. (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

C370S200000, C370S214000, C370S497000, C439S950000

Reexamination Certificate

active

07489709

ABSTRACT:
A method and apparatus for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.

REFERENCES:
patent: 3699523 (1972-10-01), Percher
patent: 3717858 (1973-02-01), Hadden
patent: 3806814 (1974-04-01), Forbes
patent: 3959772 (1976-05-01), Wakasa et al.
patent: 3975594 (1976-08-01), Guntersdorfer
patent: 4173714 (1979-11-01), Bloch et al.
patent: 4272759 (1981-06-01), Handy
patent: 4389694 (1983-06-01), Cornwell, Jr.
patent: 4463341 (1984-07-01), Iwasaki
patent: 4467314 (1984-08-01), Weikel et al.
patent: 4477896 (1984-10-01), Aker
patent: 4510493 (1985-04-01), Bux
patent: 4535401 (1985-08-01), Penn
patent: 4633217 (1986-12-01), Akano
patent: 4639714 (1987-01-01), Crowe
patent: 4672605 (1987-06-01), Hustig et al.
patent: 4733389 (1988-03-01), Puvogel
patent: 4734919 (1988-03-01), Tae
patent: 4736367 (1988-04-01), Wroblewski et al.
patent: 4761646 (1988-08-01), Choquet et al.
patent: 4766402 (1988-08-01), Crane
patent: 4785448 (1988-11-01), Reichert et al.
patent: 4799211 (1989-01-01), Felker et al.
patent: 4803485 (1989-02-01), Rypinski
patent: 4806905 (1989-02-01), McGowan, III et al.
patent: 4807225 (1989-02-01), Fitch
patent: 4815106 (1989-03-01), Propp et al.
patent: 4890102 (1989-12-01), Oliver
patent: 4918690 (1990-04-01), Markkula, Jr. et al.
patent: 4924492 (1990-05-01), Gitlin et al.
patent: 4926158 (1990-05-01), Zeigler
patent: 4937811 (1990-06-01), Harris
patent: 4953055 (1990-08-01), Douhet et al.
patent: 4992774 (1991-02-01), McCullough
patent: 5021779 (1991-06-01), Bisak
patent: 5025443 (1991-06-01), Gupta
patent: 5032819 (1991-07-01), Sakuragi et al.
patent: 5033062 (1991-07-01), Morrow et al.
patent: 5033112 (1991-07-01), Bowling et al.
patent: 5034531 (1991-07-01), Friary et al.
patent: 5065133 (1991-11-01), Howard
patent: 5089927 (1992-02-01), Bulan et al.
patent: 5089974 (1992-02-01), Demeyer et al.
patent: 5121482 (1992-06-01), Patton
patent: 5144544 (1992-09-01), Jenneve et al.
patent: 5148144 (1992-09-01), Sutterlin et al.
patent: 5285477 (1994-02-01), Leonowich
patent: 5311518 (1994-05-01), Takato et al.
patent: 5347549 (1994-09-01), Baumann et al.
patent: 5368041 (1994-11-01), Shambroom
patent: 5381804 (1995-01-01), Shambroom
patent: 5391932 (1995-02-01), Small et al.
patent: 5406260 (1995-04-01), Cummings et al.
patent: 5414708 (1995-05-01), Webber et al.
patent: 5422519 (1995-06-01), Russell
patent: 5438678 (1995-08-01), Smith
patent: 5450393 (1995-09-01), Watanabe et al.
patent: 5450486 (1995-09-01), Maas et al.
patent: 5451923 (1995-09-01), Seberger et al.
patent: 5457629 (1995-10-01), Miller et al.
patent: 5467369 (1995-11-01), Vijeh et al.
patent: 5469150 (1995-11-01), Sitte
patent: 5477091 (1995-12-01), Fiorina et al.
patent: 5483656 (1996-01-01), Oprescu et al.
patent: 5491402 (1996-02-01), Small
patent: 5517172 (1996-05-01), Chiu
patent: 5525962 (1996-06-01), Tice
patent: 5528089 (1996-06-01), Guiset et al.
patent: 5530748 (1996-06-01), Ohmori
patent: 5535336 (1996-07-01), Smith et al.
patent: 5546385 (1996-08-01), Caspi et al.
patent: 5563515 (1996-10-01), Kako
patent: 5572182 (1996-11-01), De Pinho Filho et al.
patent: 5579486 (1996-11-01), Oprescu et al.
patent: 5610552 (1997-03-01), Schlesinger et al.
patent: 5610922 (1997-03-01), Balatoni
patent: 5635896 (1997-06-01), Tinsley et al.
patent: 5644286 (1997-07-01), Brosh et al.
patent: 5652893 (1997-07-01), Ben-Meir et al.
patent: 5680397 (1997-10-01), Christensen et al.
patent: 5684826 (1997-11-01), Ratner
patent: 5689230 (1997-11-01), Merwin et al.
patent: 5748634 (1998-05-01), Sokol et al.
patent: 5796965 (1998-08-01), Choi et al.
patent: 5799196 (1998-08-01), Flannery
patent: 5805597 (1998-09-01), Edem
patent: 5815681 (1998-09-01), Kikinis
patent: 5828293 (1998-10-01), Rickard
patent: 5828558 (1998-10-01), Korcharz et al.
patent: 5841360 (1998-11-01), Binder
patent: 5841841 (1998-11-01), Dodds et al.
patent: 5859584 (1999-01-01), Counsell et al.
patent: 5859596 (1999-01-01), McRae
patent: 5884086 (1999-03-01), Amoni et al.
patent: 5896443 (1999-04-01), Dichter
patent: 5930340 (1999-07-01), Bell
patent: 5939801 (1999-08-01), Bouffard et al.
patent: 5944831 (1999-08-01), Pate et al.
patent: 5960066 (1999-09-01), Hartmann et al.
patent: 5960208 (1999-09-01), Obata et al.
patent: 5973942 (1999-10-01), Nelson et al.
patent: 5974553 (1999-10-01), Gandar
patent: 5982052 (1999-11-01), Sosnowski
patent: 5990577 (1999-11-01), Kamioka et al.
patent: 5991885 (1999-11-01), Chang et al.
patent: 5994998 (1999-11-01), Fisher et al.
patent: 6016519 (2000-01-01), Chida et al.
patent: 6025945 (2000-02-01), Nyu et al.
patent: 6026078 (2000-02-01), Smith
patent: 6033101 (2000-03-01), Reddick et al.
patent: 6038457 (2000-03-01), Barkat
patent: 6049471 (2000-04-01), Korcharz et al.
patent: 6049881 (2000-04-01), Massman et al.
patent: 6055633 (2000-04-01), Schrier et al.
patent: 6087835 (2000-07-01), Haneda
patent: 6095867 (2000-08-01), Brandt et al.
patent: 6097761 (2000-08-01), Buhring et al.
patent: 6114632 (2000-09-01), Planas, Sr. et al.
patent: 6115468 (2000-09-01), De Nicolo
patent: 6115755 (2000-09-01), Krishan
patent: 6115822 (2000-09-01), Kim et al.
patent: 6125448 (2000-09-01), Schwan et al.
patent: 6141763 (2000-10-01), Smith et al.
patent: 6166496 (2000-12-01), Lys et al.
patent: 6175556 (2001-01-01), Allen, Jr. et al.
patent: 6188314 (2001-02-01), Wallace et al.
patent: 6218930 (2001-04-01), Katzenberg et al.
patent: 6243818 (2001-06-01), Schwan et al.
patent: 6246748 (2001-06-01), Yano
patent: 6301527 (2001-10-01), Butland et al.
patent: 6308240 (2001-10-01), De Nicolo
patent: 6310781 (2001-10-01), Karam
patent: 6348874 (2002-02-01), Cole et al.
patent: 6363066 (2002-03-01), Frimodig
patent: 6366143 (2002-04-01), Liu et al.
patent: 6377874 (2002-04-01), Ykema
patent: 6389139 (2002-05-01), Curtis et al.
patent: 6393607 (2002-05-01), Hughes et al.
patent: 6396391 (2002-05-01), Binder
patent: 6448899 (2002-09-01), Thompson
patent: 6449348 (2002-09-01), Lamb et al.
patent: 6459175 (2002-10-01), Potega
patent: 6459275 (2002-10-01), Ewalt et al.
patent: 6470401 (2002-10-01), Peterson
patent: 6473608 (2002-10-01), Lehr et al.
patent: 6477457 (2002-11-01), Fendt et al.
patent: 6480122 (2002-11-01), Oddy et al.
patent: 6496103 (2002-12-01), Weiss et al.
patent: 6522515 (2003-02-01), Whitney
patent: 6529443 (2003-03-01), Downey, Jr. et al.
patent: 6535983 (2003-03-01), McCormack et al.
patent: 6541878 (2003-04-01), Diab
patent: 6546494 (2003-04-01), Jackson et al.
patent: 6549616 (2003-04-01), Binder
patent: 6553076 (2003-04-01), Huang
patent: 6556564 (2003-04-01), Rogers
patent: 6571181 (2003-05-01), Rakshani et al.
patent: 6574741 (2003-06-01), Fujimori et al.
patent: 6587454 (2003-07-01), Lamb
patent: 6603220 (2003-08-01), Vergnaud
patent: 6640308 (2003-10-01), Keyghobad et al.
patent: 6643566 (2003-11-01), Lehr et al.
patent: 6648308 (2003-11-01), Gunnar Rothoff
patent: 6650622 (2003-11-01), Austerman, III et al.
patent: 6658109 (2003-12-01), Steinke et al.
patent: 6681013 (2004-01-01), Miyamoto
patent: 6690677 (2004-02-01), Binder
patent: 6701443 (2004-03-01), Bell
patent: 6715087 (2004-03-01), Vergnaud et al.
patent: 6738641 (2004-05-01), Elsasser
patent: 6762675 (2004-07-01), Cafiero et al.
patent: 6764343 (2004-07-01), Ferentz
patent: 6800957 (2004-10-01), Nerone et al.
patent: 6804351 (2004-10-01), Karam
patent: 6841979 (2005-01-01), Berson et al.
patent: 6842459 (2005-01-01), Binder
patent: 6870282 (2005

Affiliated with

Also associated with

Rating

Telephone communication system and method over local area... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone communication system and method over local area..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone communication system and method over local area... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4110883