4. Telephonic communications
  5. Subscriber line or transmission line interface
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Dual mode LMS nonlinear data echo canceller

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual network housing device

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual personality analog port

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual voltage, self-monitoring line circuit

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual-limit current-limiting battery-feed circuit for a digital l

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dual-slope current battery-feed circuit

Telephonic communications – Subscriber line or transmission line interface – Power supply
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dynamic allocation of overhead voltage to support...

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Dynamic echo canceller and parameter selection in telephony syst

Telephonic communications – Subscriber line or transmission line interface – Network interface device
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0
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