4. Telephonic communications
  5. Substation or terminal circuitry
  6. Sidetone control or hybrid circuit

R. Vaas

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Active equalization circuit

Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
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Active impedance line feed circuit

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Active impedance line feed circuit with improved ground fault pr

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Active network termination circuit

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Adaptive echo canceller

Multiplex communications – Wide area network – Packet switching
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Profile ID: LFUS-PAI-P-34511

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