Multiplex communications – Special services – Conferencing
Reexamination Certificate
2004-06-02
2008-12-30
Pham, Chi H. (Department: 2616)
Multiplex communications
Special services
Conferencing
C370S485000, C370S487000, C370S493000
Reexamination Certificate
active
07471648
ABSTRACT:
Video, voice and data are integrated using existing telephone connections by using a video network server to receive and transmit video signals to and from clients using telephone wires. Client frequency division multiplexing couplers, each associated with one of the clients, receive video and telephone signals from the client and frequency multiplex them onto the telephone wires for transmission. They also receive video signals from the server and frequency demultiplex them for transmission to the client. A video frequency division multiplexing coupler connected between the video network server and each of the client frequency division multiplexing couplers receive the video and telephone signals from the clients and transmit only the video signals to the video network server. A telephone frequency division multiplexing coupler connected between a telephone network switch and each of the client frequency division multiplexing couplers receive the video and telephone signals from the clients and transmit only the telephone signals to the telephone network switch.
REFERENCES:
patent: 4847829 (1989-07-01), Tompkins et al.
patent: 5283637 (1994-02-01), Goolcharan
patent: 5381412 (1995-01-01), Otani
patent: 5539452 (1996-07-01), Bush et al.
patent: 5587734 (1996-12-01), Lauder et al.
patent: 5671267 (1997-09-01), August et al.
patent: 5781734 (1998-07-01), Ohno et al.
patent: 5790173 (1998-08-01), Strauss et al.
patent: 5825829 (1998-10-01), Borazjani et al.
patent: 5896128 (1999-04-01), Boyer
Andersen David B.
Johnson David B.
Kini Vittal
Blakely , Sokoloff, Taylor & Zafman LLP
Hyun Soon D.
Intel Corporation
Pham Chi H.
LandOfFree
Integrating video, voice and data traffic in a single... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrating video, voice and data traffic in a single..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrating video, voice and data traffic in a single... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4043079