Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2001-06-11
2008-09-02
Jung, Min (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S389000
Reexamination Certificate
active
07420961
ABSTRACT:
A method of transmitting data bits over a modem connection. The method includes receiving a first stream of data bits, by a first modem, performing a first set of one or more communication tasks on the first stream of bits, by the first modem, so as to generate a second stream of bits, modulating the second stream of bits, by the first modem, so as to form a modulated signal, transmitting the modulated signal from the first modem to a second modem, demodulating the modulated signal by the second modem, so as to form a third stream of bits, performing on the third stream of bits, a second set of zero or more communication tasks, including a different number of tasks than the first set of tasks, so as to form a fourth stream of bits, and transmitting the fourth stream of bits to a communication unit over a packet based network.
REFERENCES:
patent: 5546388 (1996-08-01), Lin
patent: RE35740 (1998-03-01), Piasecki et al.
patent: 5790641 (1998-08-01), Chan et al.
patent: 6044107 (2000-03-01), Gatherer et al.
patent: 6069879 (2000-05-01), Chatter
patent: 6301229 (2001-10-01), Araujo et al.
patent: 6360075 (2002-03-01), Fischer et al.
patent: 6434169 (2002-08-01), Verreault
patent: 6446232 (2002-09-01), Chan et al.
patent: 6522640 (2003-02-01), Liebenow
patent: 6646998 (2003-11-01), Räsänen
patent: 6667986 (2003-12-01), Sullivan et al.
patent: 6711704 (2004-03-01), Tezuka
patent: 6757250 (2004-06-01), Fayad et al.
patent: 6934325 (2005-08-01), Maytal
patent: 2002/0082047 (2002-06-01), Souissi et al.
patent: 2002/0133528 (2002-09-01), Zolti et al.
patent: 2003/0123466 (2003-07-01), Somekh et al.
patent: WO 99/38351 (1999-07-01), None
patent: WO 99/38352 (1999-07-01), None
patent: WO 99/39530 (1999-08-01), None
patent: WO 99/40685 (1999-08-01), None
patent: WO 00/11843 (2000-03-01), None
patent: WO 01/01654 (2001-01-01), None
patent: WO 01/35228 (2001-05-01), None
patent: WO 01/60008 (2001-08-01), None
patent: WO 01/91506 (2001-11-01), None
patent: WO 01/97503 (2001-12-01), None
“A Digital Modem and Analogue Modem Pair for Use on the Public Switched Telephone Network (PSTN) at Data Signalling Rates of Up To 56 000 BIT/S Downstream and Up To 33 600 BIT/S Upstream”; ITU-T V. 90; Sep. 1998; pp. 1-50.
“Procedures for Starting Sessions of Data Transmission Over the Public Switched Telephone Network”; ITU-T V.8; Feb. 1998; pp. 1-13.
“Procedures for Real Time Group 3 Facsimile Communication Over IP-networks” ITU-T Recommendation T.38, Jun. 1998, pp. 1-30, XP002163782.
“A Modem Operating at Data Signalling Rates of Up to 33 600 BITS/S For Use on the General Switched Telephone Network and on Leased Point-To-Point 2-wire Telephone-Type Circuits”; ITU-T Recommendation V.34; Oct. 1996, XP002082229. pp. 1-4, 25-52.
Yu S -For, et al.; “A Multimedia Gateway for Phone/Fax and MIME Mail”; Computer Communications; vol. 20; No. 8; Aug. 25, 1997; XP004126715; pp. 615-627.
Gieseler S.: “Tunnelbau—Remote Access Server als Basis Fur Virtual Private Networks”; NET—Zeitschrift fuer, kommunikationsmanagment, Huthig Verlag; DE; vol. 52; No. 8/9; 1998; XP000782761; pp. 38-40.
Surf Communication Solutions Ltd., Comparison Between Possible Procedures For Real-Time Voice Band Modem Communication Over Packet Networks (MoIP), Nov. 9-10, pp. 1-4.
Fisher Abraham
Somekh Oren
LandOfFree
Distributed modem does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Distributed modem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Distributed modem will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3988456