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Class Information
Number: 379/1.03
Name: Telephonic communications > Diagnostic testing, malfunction indication, or electrical condition measurement > Of data transmission
Description: Subject matter including testing a two wire telephone line using an audio modulated data signal to indicate proper line quality.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7406157 |
Methods and apparatuses for determining loop characteristics using an extended voice-band modem |
Jul. 29, 2008 |
| 7400710 |
MIMO dynamic PSD allocation for DSL networks |
Jul. 15, 2008 |
| 7388945 |
Method and system for determining data transfer margins for network connections |
Jun. 17, 2008 |
| 7362850 |
Method and arrangement for estimation of line properties |
Apr. 22, 2008 |
| 7356586 |
Filtering system and method for voice protocol network analysis |
Apr. 8, 2008 |
| 7356127 |
Global digital measurement device |
Apr. 8, 2008 |
| 7346149 |
Method and apparatus for reversibly correcting nonlinear impairments in a communications channel |
Mar. 18, 2008 |
| 7313517 |
Method and system for speech quality prediction of an audio transmission system |
Dec. 25, 2007 |
| 7272209 |
Automated DSL performance adjustment |
Sep. 18, 2007 |
| 7245701 |
System and method for verifying central office wiring associated with line sharing |
Jul. 17, 2007 |
| 7242761 |
System and method for determining the transmit power of a communication device operating on digital subscriber lines |
Jul. 10, 2007 |
| 7231403 |
System and method for transformation and analysis of messaging data |
Jun. 12, 2007 |
| 7215951 |
Test system for mobile communication terminal in which state of progress of connection-transition test can be visually recognized |
May. 8, 2007 |
| 7200206 |
Method and apparatus for testing a subscriber loop-based service |
Apr. 3, 2007 |
| 7177267 |
Hardware monitoring and configuration management |
Feb. 13, 2007 |
| 7177394 |
Connection architecture for XDSL networks and intermediate distribution frame for said architecture |
Feb. 13, 2007 |
| 7133497 |
Use of lower bandwidth technology to determine channel capability for supporting higher bandwidth technology |
Nov. 7, 2006 |
| 7106833 |
Automated system and method for management of digital subscriber lines |
Sep. 12, 2006 |
| 7095824 |
Instructive out-of-service telephone lines |
Aug. 22, 2006 |
| 7076316 |
Method and apparatus for controlling an operative setting of a communications link |
Jul. 11, 2006 |
| 7076030 |
Method and system for testing XDSL wiring |
Jul. 11, 2006 |
| 7072448 |
DSL tester |
Jul. 4, 2006 |
| 7068755 |
Methods and apparatus for characterizing subscriber loop based on analysis of DSL handshaking signals and for optimization of DSL operation |
Jun. 27, 2006 |
| 7065180 |
System and method for hitless monitoring access of a communications circuit |
Jun. 20, 2006 |
| 7042983 |
Method and apparatus for bridged tap impact analysis |
May. 9, 2006 |
| 7035400 |
Signaling Techniques in channels with asymmetric powers and capacities |
Apr. 25, 2006 |
| 7016671 |
Test system for mobile communication terminal in which result of connection-transition test can be directly and visually grasped |
Mar. 21, 2006 |
| 6999727 |
Method to implement a performance monitoring function on the ground of the retrieved data through FEC (Forward Error Correction) in a telecom network |
Feb. 14, 2006 |
| 6961315 |
Technique for monitoring conversational voice over packet |
Nov. 1, 2005 |
| 6944132 |
Transmission apparatus, order wire transmission system and order wire monitoring method |
Sep. 13, 2005 |
| 6922464 |
System and method for hitless monitoring access of a communications circuit |
Jul. 26, 2005 |
| 6914961 |
Speed binning by neural network |
Jul. 5, 2005 |
| 6901137 |
Detecting faults in subscriber telephone lines |
May. 31, 2005 |
| 6898631 |
Platform for internet based real-time communication content selection |
May. 24, 2005 |
| 6879663 |
Method and structure for diagnosing problems on a DSL device |
Apr. 12, 2005 |
| 6873685 |
Digital subscriber line access and network testing multiplexer |
Mar. 29, 2005 |
| 6873623 |
System and method for overlaying DSL access multiplexer onto existing access systems |
Mar. 29, 2005 |
| 6868067 |
Hybrid agent-oriented object model to provide software fault tolerance between distributed processor nodes |
Mar. 15, 2005 |
| 6856683 |
Method for reducing noise from a non-linear device that shares a customer loop with an asymmetric digital subscriber line modem |
Feb. 15, 2005 |
| 6845149 |
Method for frequency and loop length grouping for cross-talk reduction in a plurality of DSL channels |
Jan. 18, 2005 |
| 6819744 |
System and circuitry for measuring echoes on subscriber loops |
Nov. 16, 2004 |
| 6819745 |
Method and apparatus of testing a POTS circuit and DSL circuit through a splitter |
Nov. 16, 2004 |
| 6816575 |
Single ended loop loss measurement by frequency domain reflectometry-based signal processing |
Nov. 9, 2004 |
| 6801601 |
Single ended line probing in DSL system using transformerless hybrid |
Oct. 5, 2004 |
| 6798866 |
System and method for verifying central office wiring associated with line sharing |
Sep. 28, 2004 |
| 6782096 |
Subscriber line driver and termination |
Aug. 24, 2004 |
| 6775550 |
Method of inducing ADSL communication device to transmit at downstream signaling rate optimized for extended range ADSL service with auxiliary pots channel over SDSL link |
Aug. 10, 2004 |
| 6768720 |
Verification of link integrity of a home local area network |
Jul. 27, 2004 |
| 6765989 |
Method for optimizing downstream data transfer in an asymmetric digital subscriber line modem |
Jul. 20, 2004 |
| 6763087 |
Mobile VDSL signal detector |
Jul. 13, 2004 |
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