4. Pulse or digital communications
  5. Spread spectrum
  6. Direct sequence

Warren R. Fryer

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Customer premises loop test unit powered from the normal central

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Demultiplexer for two-stage framing

Multiplex communications – Wide area network – Packet switching
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Frame synchronization for distributed framing pattern in electro

Pulse or digital communications – Spread spectrum – Direct sequence
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Two-wire, electronic switch

Electrical transmission or interconnection systems – Switching systems – Condition responsive
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Profile ID: LFUS-PAI-P-1176590

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