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Subscriber line interface circuitry

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

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Subscriber line interface circuitry

Telephonic communications – Subscriber line or transmission line interface – Circuitry to provide a coder and decoder function
Reexamination Certificate

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Subscriber line interface circuitry

Telephonic communications – Subscriber line or transmission line interface – Circuitry to provide a coder and decoder function
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Subscriber line interface circuitry transceiver

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber line interface circuitry transceiver

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber line interface circuitry transceiver

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber line interface circuitry with common base audio...

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber line interface for improving the frequency characteri

Telephonic communications – Subscriber line or transmission line interface
Patent

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Subscriber line system having a dual-mode filter for voice commu

Telephonic communications – Subscriber line or transmission line interface
Patent

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Subscriber loop interface circuitry having bifurcated common...

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber loop reconnection device and method

Telephonic communications – Subscriber line or transmission line interface
Patent

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Subscriber matching circuit for electronic exchange

Telephonic communications – Subscriber line or transmission line interface
Reexamination Certificate

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Subscriber telephone line interface circuit with reduced power s

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

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Subscriber terminal apparatus

Telephonic communications – Subscriber line or transmission line interface
Patent

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Summing amplifier with a complex weighting factor and interface

Telephonic communications – Subscriber line or transmission line interface
Patent

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Supply circuit device for a user's telephone circuit, having a l

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

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Supply circuit for a telecommunication line, providing highly sy

Telephonic communications – Subscriber line or transmission line interface – For line length compensation
Patent

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Supply circuit for a variable load, particularly for a line circ

Telephonic communications – Subscriber line or transmission line interface – For line length compensation
Patent

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Supply circuit for supplying a two-wire line

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

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Supply power transition control

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

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