4. Telephonic communications
  5. Supervisory or control line signaling
  6. Signal reception at substation

Arnold Muralt

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Apparatus and method for improved DSL communication

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Reexamination Certificate

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Circuit and method for active termination of a transmission...

Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate

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Circuit and method for an improved front end in duplex...

Pulse or digital communications – Transceivers
Reexamination Certificate

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Circuit for combined xDSL and other services

Pulse or digital communications – Transceivers – Transmission interface between two stations or terminals
Patent

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Combined handset and POTS filter

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1593426

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