| Patent Number |
Title Of Patent |
Date Issued |
| 7529348 |
Method of performing insertion loss estimation |
May. 5, 2009 |
| 7471771 |
Telecommunications diagnostic information management |
Dec. 30, 2008 |
| 7426262 |
Method and arrangement for loop test of a disturbed line |
Sep. 16, 2008 |
| 7424097 |
Method of measuring and improving xDSL transmission characteristic |
Sep. 9, 2008 |
| 7388945 |
Method and system for determining data transfer margins for network connections |
Jun. 17, 2008 |
| 7388946 |
System and method for evaluating the quality of service in an IP telephony network using call forwarding |
Jun. 17, 2008 |
| 7356127 |
Global digital measurement device |
Apr. 8, 2008 |
| 7206743 |
Method and apparatus for evaluating the voice quality of telephone calls |
Apr. 17, 2007 |
| 7162011 |
Method and device for measuring the quality of a network for the transmission of digital or analog signals |
Jan. 9, 2007 |
| 7127209 |
Method and system for providing accurate service record using phone line detector |
Oct. 24, 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 |
| 6987838 |
System and method for deploying new equipment and services in conjunction with a legacy provisioning system |
Jan. 17, 2006 |
| 6922464 |
System and method for hitless monitoring access of a communications circuit |
Jul. 26, 2005 |
| 6898272 |
System and method for testing telecommunication devices |
May. 24, 2005 |
| 6834281 |
Method and apparatus to support multi-node direct access to file system data |
Dec. 21, 2004 |
| 6829330 |
Systems and methods for loop characterization from double-ended measurements |
Dec. 7, 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 |
| 6771948 |
Background data queries in wireless web applications |
Aug. 3, 2004 |
| 6754309 |
Communication device and access network device |
Jun. 22, 2004 |
| 6707886 |
Method and system for testing subscriber loops using touchtone telephone signals |
Mar. 16, 2004 |
| 6690768 |
Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
Feb. 10, 2004 |
| 6683951 |
Method and apparatus for providing service to VODSL derived telephone lines during power interruptions |
Jan. 27, 2004 |
| 6631178 |
System and method for transmitting data over loaded and unloaded twisted pairs |
Oct. 7, 2003 |
| 6611593 |
Call control of ancillary telecommunications equipment using continuity tests |
Aug. 26, 2003 |
| 6546235 |
System for cancelling distortion in an electronic circuit |
Apr. 8, 2003 |
| 6516049 |
Method and apparatus for insertion loss estimation in wireline communications |
Feb. 4, 2003 |
| 6510204 |
Method and apparatus for providing an all digital loop with power-optimised mode |
Jan. 21, 2003 |
| 6498833 |
Channel check test system |
Dec. 24, 2002 |
| 6496566 |
Metallic testing of a subscriber loop that provides both voice and digital subscriber line services |
Dec. 17, 2002 |
| RE37857 |
Data processing system for communications network |
Sep. 24, 2002 |
| RE37856 |
Data correction system for communications network |
Sep. 24, 2002 |
| 6389111 |
Measurement of signal quality |
May. 14, 2002 |
| 6324260 |
Channel check test system |
Nov. 27, 2001 |
| 6317495 |
Spectral optimization and joint signaling techniques with multi-line separation for communication in the presence of crosstalk |
Nov. 13, 2001 |
| 6285755 |
Transmission system and transmission apparatus |
Sep. 4, 2001 |
| 6236714 |
Transmit power control for DSL modems in splitterless environment |
May. 22, 2001 |
| 6154524 |
Method and apparatus for automatically and adaptively adjusting telephone audio quality and DSL data rate in a DSL system |
Nov. 28, 2000 |
| 6111935 |
Adaptive expansion table in a digital telephone receiver |
Aug. 29, 2000 |
| 6111936 |
Method and apparatus for automatically detecting and measuring distortion in a DSL system |
Aug. 29, 2000 |
| 6061427 |
Transmission power control method in asymmetric digital subscriber line system |
May. 9, 2000 |
| 6049592 |
System for and method of mutually monitoring information guidance units interconnected to telephone lines |
Apr. 11, 2000 |
| 6014425 |
Apparatus and method for qualifying telephones and other attached equipment for optimum DSL operation |
Jan. 11, 2000 |
| 5970121 |
Method and apparatus for obtaining feedback regarding data network services |
Oct. 19, 1999 |
| 5903626 |
Diagnostic device for troubleshooting remote digital feature phones |
May. 11, 1999 |
| 5898764 |
Data communication apparatus |
Apr. 27, 1999 |
| 5835565 |
Telecommunication system tester with integrated voice and data |
Nov. 10, 1998 |
| 5822398 |
Control of operating states of channel unit installed in performance monitoring capable D4 channel bank |
Oct. 13, 1998 |
| 5809110 |
Technique of controlling telephone calls |
Sep. 15, 1998 |
| 5805669 |
Rate adaptaptive subscriber line ("RADSL") modem and method of operation |
Sep. 8, 1998 |
