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Class Information
Number: 379/93.06
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 > Terminal interface circuitry > Digital
Description: Subject matter wherein the interface circuitry is connected to a telephone line in which the information is encoded as a series of ones and zeros.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627345 |
Circuit arrangement that functions as an interface between a SIM card and GSM modem |
Dec. 1, 2009 |
| 7580732 |
Subscriber aggregated power |
Aug. 25, 2009 |
| 7349536 |
Techniques for providing uninterrupted digital communications to customers coupled to local loop generation equipment |
Mar. 25, 2008 |
| 7336625 |
Method and system for transmitting data via a radio interface |
Feb. 26, 2008 |
| 7295570 |
Determining a profile for an interface of a network device |
Nov. 13, 2007 |
| 7295569 |
Selecting a profile for an interface of a network device according to a margin |
Nov. 13, 2007 |
| 7233649 |
Faster modem method and apparatus |
Jun. 19, 2007 |
| 7197134 |
DTMF generating assistant |
Mar. 27, 2007 |
| 7167548 |
Method and apparatus for modifying gain settings in a connection interface |
Jan. 23, 2007 |
| 7161962 |
Method and apparatus for coding modem signals for transmission over voice networks |
Jan. 9, 2007 |
| 7068649 |
Extended bandwidth homePNA system compatible with homePNA 2.0 |
Jun. 27, 2006 |
| 7050552 |
System and method to mitigate pots ringing interference in DSL |
May. 23, 2006 |
| 7046755 |
Digital access arrangement circuitry and method for connecting to phone lines having a DC holding circuit with switchable time constants |
May. 16, 2006 |
| 7020276 |
Frequency sensitive inductance device in POTS splitter design |
Mar. 28, 2006 |
| 7013000 |
MTA intercom feature |
Mar. 14, 2006 |
| 7003089 |
Splitter for analog telephone signal and digital data |
Feb. 21, 2006 |
| 6973180 |
Method for processing telephone signals supplied by an analog telephone terminal and data supplied by a data terminal |
Dec. 6, 2005 |
| 6898413 |
Method for seamless port capability for an alternative service provider |
May. 24, 2005 |
| 6839570 |
Method and circuit for interfacing a modem in a wireless communication device to a subscriber interface module |
Jan. 4, 2005 |
| 6804348 |
Circuit for echo-cancellation in an asymmetric, two-way time-and frequency-shared communication medium |
Oct. 12, 2004 |
| 6801605 |
Telephone network signal conversion system |
Oct. 5, 2004 |
| 6778646 |
System and method for coupling multiple home networks |
Aug. 17, 2004 |
| 6732315 |
Home networking over phone lines |
May. 4, 2004 |
| 6728371 |
Method and apparatus for stabilization of a line powered modulator circuit |
Apr. 27, 2004 |
| 6697463 |
System for providing increased data speed using high resolution analog to digital conversion |
Feb. 24, 2004 |
| 6690718 |
Asymmetric digital subscriber line transceiver unit-card and method of controlling the same |
Feb. 10, 2004 |
| 6587560 |
Low voltage circuits powered by the phone line |
Jul. 1, 2003 |
| 6584117 |
Deactivation of extended basic rate ISDN link |
Jun. 24, 2003 |
| 6574313 |
Voice over DSL method and system for supporting a lifeline |
Jun. 3, 2003 |
| 6553061 |
Method and apparatus for detecting a waveform |
Apr. 22, 2003 |
| 6553118 |
Method and apparatus for calculating DC offset in a digital gyrator |
Apr. 22, 2003 |
| 6546089 |
Method and system for supporting a lifeline associated with voice over DSL |
Apr. 8, 2003 |
| 6519328 |
Variable low frequency offset, differential, OOK, high-speed twisted pair communication using telephone load coils |
Feb. 11, 2003 |
| 6473497 |
Digital telephone set |
Oct. 29, 2002 |
| 6456705 |
Digital key telephone system and extension terminal device thereof |
Sep. 24, 2002 |
| 6393109 |
Apparatus and method of coupling home network signals between an analog phone line and a digital UPN line |
May. 21, 2002 |
| 6377665 |
Apparatus and method of implementing a universal home network on a customer premises UPN telephone lines |
Apr. 23, 2002 |
| 6377666 |
Apparatus and method for a PHY transmitter with programmable power mode control in CMOS |
Apr. 23, 2002 |
| 6370149 |
Telecommunication system, method and subscriber unit for use therein |
Apr. 9, 2002 |
| 6351530 |
Modem having a digital high voltage isolation barrier |
Feb. 26, 2002 |
| 6343118 |
Device and method to establish communication |
Jan. 29, 2002 |
| 6307880 |
Method and system for externally incorporating automatic switching between voice and data communications |
Oct. 23, 2001 |
| 6301337 |
Combined handset and POTS filter |
Oct. 9, 2001 |
| 6301340 |
Mechanism for providing emergency POTS service in event of loss of power to customer premises equipment for ISDN telephone lines |
Oct. 9, 2001 |
| 6275581 |
Extended feedback circuit employing capacitive coupling and sampled data filters |
Aug. 14, 2001 |
| 6205208 |
Method and apparatus for dynamic processing of data communications of various types |
Mar. 20, 2001 |
| 6147774 |
Multifunction interface card for interfacing a facsimile machine, secure modem, and a personal computer |
Nov. 14, 2000 |
| 6144724 |
Communication interface to data networks |
Nov. 7, 2000 |
| 6137866 |
Indoor XDSL splitter assembly |
Oct. 24, 2000 |
| 6118766 |
Multiple ISDN carrier system |
Sep. 12, 2000 |
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