4. Telephonic communications
  5. Subscriber line or transmission line interface
  6. Power supply

François Van Zanten

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Current amplifier, particularly for a telephone line

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

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Current source assembly controllable in response to a...

Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...
Reexamination Certificate

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Differential amplifier with a common mode voltage loop

Amplifiers – With semiconductor amplifying device – Including differential amplifier
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Method and circuit for correcting the offset of an...

Amplifiers – With periodic switching input-output
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Process for controlling the gain of a frequency tuner, and...

Telecommunications – Receiver or analog modulated signal frequency converter – Local control of receiver operation
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Profile ID: LFUS-PAI-P-2551739

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