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Class Information
Number: 379/93.31
Name: Telephonic communications > Telephone line or system combined with diverse electrical system or signalling (e.g., composite) > Having transmission of a digital message signal over a telephone line > By voice frequency signal (e.g., tone code) > Modulated audio tone > Protocol
Description: Subject matter including particular details of transmission scheme.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7539768 |
System and method for delivering last mile computing over light from a plurality of network edge locations |
May. 26, 2009 |
| 7499532 |
Method and system for communicating information to a caller on a telephone network by superimposing an audible information message over a dial tone |
Mar. 3, 2009 |
| 7483701 |
System and method for handling media in a seamless handoff environment |
Jan. 27, 2009 |
| 7443966 |
Using modems to place modem connections on hold and to maintain upper layer network connection |
Oct. 28, 2008 |
| 7417943 |
Dynamic compression training method and apparatus |
Aug. 26, 2008 |
| 7366780 |
System and method for controlling and managing sessions between endpoints in a communications system |
Apr. 29, 2008 |
| 7356738 |
Electronic apparatus having improved diagnostic interface |
Apr. 8, 2008 |
| RE40057 |
Method and apparatus for providing interoperation between a digital communication system and a public switched telephone network |
Feb. 12, 2008 |
| 7295569 |
Selecting a profile for an interface of a network device according to a margin |
Nov. 13, 2007 |
| 7295570 |
Determining a profile for an interface of a network device |
Nov. 13, 2007 |
| 7289610 |
Digital subscriber line service over loaded loops |
Oct. 30, 2007 |
| 7277531 |
Method and apparatus for fast V.90 modem startup |
Oct. 2, 2007 |
| 7262887 |
Network scanner system |
Aug. 28, 2007 |
| 7174004 |
Network based method and apparatus for supporting interoperability between incompatible TTY devices |
Feb. 6, 2007 |
| 7142510 |
Communications network |
Nov. 28, 2006 |
| 7068764 |
V.90 over all-digital connections |
Jun. 27, 2006 |
| 7062022 |
Method and apparatus for fast V.90 modem startup |
Jun. 13, 2006 |
| 7039180 |
Method and apparatus for enabling multiple protocol communication over a network |
May. 2, 2006 |
| 7031446 |
Device for use in communication systems |
Apr. 18, 2006 |
| 7006611 |
Interface for a telecommunication system |
Feb. 28, 2006 |
| 6985566 |
Point of sale modem for high-speed communications |
Jan. 10, 2006 |
| 6925158 |
Modem function incorporated in a programmable logic controller |
Aug. 2, 2005 |
| 6922467 |
Quick connect parameter exchange |
Jul. 26, 2005 |
| 6912276 |
Modem on hold |
Jun. 28, 2005 |
| 6819749 |
Method and apparatus for fast V.90 modem startup |
Nov. 16, 2004 |
| 6785371 |
Signaling mechanism for modem connection holding and reconnecting |
Aug. 31, 2004 |
| 6778649 |
Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth |
Aug. 17, 2004 |
| 6765957 |
Activation of multiple xDSL modems with implicit channel probe |
Jul. 20, 2004 |
| 6763097 |
Source adaptive digital subscriber line and method |
Jul. 13, 2004 |
| 6704399 |
Quick connect parameter exchange |
Mar. 9, 2004 |
| 6700958 |
Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth |
Mar. 2, 2004 |
| 6693998 |
Error correction and compression parameter exchange during modem training phase |
Feb. 17, 2004 |
| 6683944 |
Voice transmitter |
Jan. 27, 2004 |
| 6594467 |
Unidirectional communication scheme for remote maintenance and control in a broadband wireless access system |
Jul. 15, 2003 |
| 6522730 |
DSL communication system with improved bandwidth |
Feb. 18, 2003 |
| 6519336 |
Method and apparatus for providing interoperation between a digital communication system and a public switched telephone network |
Feb. 11, 2003 |
| 6463056 |
Arrangement for providing network protocol data independence in an expandable telecommunications system |
Oct. 8, 2002 |
| 6449286 |
R2 multi-frequency compelled signalling using a DSP on a network termination card |
Sep. 10, 2002 |
| 6396912 |
Method and system for connecting multiple DSL modems to a telephone line |
May. 28, 2002 |
| 6373927 |
Method and apparatus for transmitting coded audio signals through a transmission channel with limited bandwidth |
Apr. 16, 2002 |
| 6324268 |
Splitter-less digital subscriber loop modems with improved throughput and voice and data separation |
Nov. 27, 2001 |
| 6320879 |
Communication system and method for interleaving or transmission of telephone rings and data |
Nov. 20, 2001 |
| 6314170 |
Modem apparatus and data communication method |
Nov. 6, 2001 |
| 6269154 |
Splitterless modem with integrated off-hook detector |
Jul. 31, 2001 |
| 6246754 |
Mechanism for changing a modem's connection rate within a family of interoperable modems |
Jun. 12, 2001 |
| 6236676 |
Intelligent adaptive modulation system |
May. 22, 2001 |
| 6236719 |
Arrangement for data transmission utilizing telephone network |
May. 22, 2001 |
| 6163599 |
Communication server apparatus and method |
Dec. 19, 2000 |
| 6151355 |
Wireless modem |
Nov. 21, 2000 |
| 6141403 |
Modem protocol |
Oct. 31, 2000 |
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