4. Electrical transmission or interconnection systems
  5. Plural supply circuits or sources
  6. One source floats across or compensates for other source

Keith E. Hollenbach

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Combination clock and charge pump for line powered DAA

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Event detection circuit

Telephonic communications – Supervisory or control line signaling – Using line or loop condition detection
Reexamination Certificate

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Line interface circuit with event detection signaling

Telephonic communications – Subscriber line or transmission line interface – Protective circuit
Reexamination Certificate

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Method and apparatus for reducing power dissipation in DC termin

Electrical transmission or interconnection systems – Plural supply circuits or sources – One source floats across or compensates for other source
Patent

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Startup procedure for international line powered DAA

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

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Profile ID: LFUS-PAI-P-629288

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