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Class Information
Number: 379/93.01
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
Description: Subject matter for transfer of message information by either a multi-level pulse signal or a data signal consisting of a series of ones and zeros, over a line specifically described as a telephone line.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6477249 |
Communications signal splitter and filter |
Nov. 5, 2002 |
| 6463056 |
Arrangement for providing network protocol data independence in an expandable telecommunications system |
Oct. 8, 2002 |
| 6463147 |
Automated directory look-up over multiple switching systems |
Oct. 8, 2002 |
| 6463134 |
Easy response system |
Oct. 8, 2002 |
| 6463132 |
Communication system having the capability of selecting an optimum communication mode from a plurality of modes, depending on the type of equipment at a party to be communicated with |
Oct. 8, 2002 |
| 6456650 |
Splitterless modem using harmonics reduction |
Sep. 24, 2002 |
| 6457039 |
Method and apparatus for avoiding IP-address collision when connecting an incoming voice phone call to an internet application |
Sep. 24, 2002 |
| 6442250 |
Systems and methods for transmitting messages to predefined groups |
Aug. 27, 2002 |
| 6430199 |
Method and system for distributing telephone and broadband services over the copper pairs within a service location |
Aug. 6, 2002 |
| 6430176 |
Multimedia channel management through PSTN signaling |
Aug. 6, 2002 |
| 6426963 |
Technique for configuring network interface circuit in integrated services digital network keyphone system |
Jul. 30, 2002 |
| 6421431 |
Method and system for voice transmission of a binary data sequence from a piezoelectric transducer |
Jul. 16, 2002 |
| 6408071 |
Modem line connection circuit and the control circuit |
Jun. 18, 2002 |
| 6404861 |
DSL modem with management capability |
Jun. 11, 2002 |
| 6400708 |
D-channel voice communications |
Jun. 4, 2002 |
| 6396914 |
Method and system for transmitting activation codes to a communication device |
May. 28, 2002 |
| 6393016 |
Telephony signal transmission over a data communications network |
May. 21, 2002 |
| 6393110 |
Methods and apparatus for terminating a line and supporting the asymmetric digital subscriber line protocol |
May. 21, 2002 |
| 6393120 |
Arrangement in a network structure |
May. 21, 2002 |
| 6389119 |
Dual-circuit telephony |
May. 14, 2002 |
| 6389120 |
Method and apparatus for multiple logical channel information delivery over multiple suppressed ringing physical channels |
May. 14, 2002 |
| 6389042 |
Data prompt and collect in telecommunications network having digital data and bearer channels on single communications line |
May. 14, 2002 |
| 6385309 |
System and method for storing and transferring information tokens in a communication network |
May. 7, 2002 |
| 6359972 |
Line in use detection |
Mar. 19, 2002 |
| 6359932 |
Verification of transmit power levels in a signal point limited transmission system |
Mar. 19, 2002 |
| 6353628 |
Apparatus, method and system having reduced power consumption in a multi-carrier wireline environment |
Mar. 5, 2002 |
| 6351636 |
System and method for automatic area code updating |
Feb. 26, 2002 |
| 6349135 |
Method and system for a wireless digital message service |
Feb. 19, 2002 |
| 6327301 |
Detection and adaptation to digital network impairments by PCM modems |
Dec. 4, 2001 |
| 6324212 |
Apparatus using low spectrum selectively for providing both ADSL and POTS service |
Nov. 27, 2001 |
| 6317495 |
Spectral optimization and joint signaling techniques with multi-line separation for communication in the presence of crosstalk |
Nov. 13, 2001 |
| 6314102 |
Telecommunications system for providing both narrowband and broadband services to subscribers |
Nov. 6, 2001 |
| 6307930 |
Method for providing telephone access to an internet user connected to plural bonded telephone lines |
Oct. 23, 2001 |
| 6301339 |
System and method for providing a remote user with a virtual presence to an office |
Oct. 9, 2001 |
| 6282238 |
Adapter card that selects between an ISDN interface and an analog modem interface |
Aug. 28, 2001 |
| 6282273 |
Communication server apparatus using frequency multiplexing and method |
Aug. 28, 2001 |
| 6279054 |
Arbitrator for multiple processes sharing a port |
Aug. 21, 2001 |
| 6266347 |
System and method for modifying symbol duration for the efficient transmission of information in a time duplex noise environment |
Jul. 24, 2001 |
| 6243445 |
Method and apparatus for telephone data network access |
Jun. 5, 2001 |
| 6243446 |
Distributed splitter for data transmission over twisted wire pairs |
Jun. 5, 2001 |
| 6236718 |
Video transmission and control system utilizing internal telephone lines |
May. 22, 2001 |
| 6233321 |
Push/pull system for exchanging data between a terminal and access means via a telephone network, and terminal, and access means |
May. 15, 2001 |
| 6233643 |
Apparatus including a host processor and communications adapters interconnected with a bus |
May. 15, 2001 |
| 6229886 |
Method and apparatus for providing 56K modem technology for public switched telephone networks |
May. 8, 2001 |
| 6226412 |
Secure digital interactive system for unique product identification and sales |
May. 1, 2001 |
| 6215863 |
Method and apparatus for providing a station set with advanced telecommunications services |
Apr. 10, 2001 |
| 6199103 |
Electronic mail determination method and system and storage medium |
Mar. 6, 2001 |
| 6188669 |
Apparatus for statistical multiplexing and flow control of digital subscriber loop modems |
Feb. 13, 2001 |
| 6188688 |
Method and apparatus for placing telephone calls while connected to the internet |
Feb. 13, 2001 |
| 6188917 |
Portable telecommunications assembly having user hand-hold, and associated method |
Feb. 13, 2001 |
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