227531 ⎘
Substation equipment, e.g. for use by subscribers; Interface circuits for coupling substations to external telephone lines Compensating for differences in line impedance
Detecting and reducing feedback
#2Impedance matching circuit of communication apparatus
#3Communication device
#4Signal transmitting and receiving circuit of digital subscriber line
#5Apparatus and control method for the same
#6System and method for optimizing termination impedance for an analog telephone line
#7Method and circuitry for matching impedance
#8Method and circuitry for matching impedance
#9Method for correcting telephone signal degradation caused by the length of the analog line via the receiver
#10Reducing far-end crosstalk in electrical connectors
#11REDUCING FAR-END CROSSTALK IN CHIP-TO-CHIP COMMUNICATION SYSTEMS AND COMPONENTS
#12GATEWAY AND METHOD FOR ADJUSTING SIGNAL INTENSITY BETWEEN A TELEPHONE AND THE GATEWAY
#13Line interface for telephone
#14Termination circuit for broadband signal lines
#15System and Method for Premises End Crosstalk Compensation
#16Direct digital access arrangement circuitry and method for connecting to phone lines
#17Supply circuit for supplying a two-wire line
#18Configurable communications modules and methods of making the same